network appliance ns0-155 questions & answers · 2019-12-01 · network appliance ns0-155...

Network Appliance NS0-155 Questions & Answers

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Network Appliance NS0-155 Questions & Answers

Exam Name: NetApp Certified 7-Mode Data Administrator

For Full Set of Questions please visit:http://www.exact-exams.com/NS0-155-exam.htm

Sections1. High Availability2. OnTap Administration3. Large Aggregates4. Data Protection5. SAN

Exactexams

QUESTION 1How can you "throttle" SnapVault updates and baseline transfers so that the primary or secondary is nottransmitting as much data as it can?

A. Use the -k option in the snapvault start or snapshot modify commands.

B. SnapVault does not support throttling of network throughout.C. Use the snapvault throttle command.

D. Use the -k option in the snapvault initialize command.

Correct Answer: ASection: Data ProtectionExplanation

Explanation/Reference:http://backdrift.org/man/netapp/man1/na_snapvault.1.html

The snapvault subcommands are:

start [ -r ] [ -k n ] [ -t n ] [ -w ] [-p {inet | inet6 unspec}] [ -o options ][ -S [primary_filer:]primary_path ] secondary_qtree

modify [ -k n ] [ -t n ] [-p {inet | inet6 | unspec}] [ -o options ] [ -Sprimary_filer:primary_path ] sec_ondary_qtree

The -k option sets the maximum speed at which data is transferred in kilobytes per second. It is used to throttledisk, CPU, and network usage. If this option is not set, the filer transmits data as fast as it can. The settingapplies to the initial transfer as well as subsequent update transfers from the primary.

QUESTION 2In Data ONTAP, the root user is exempt from those two quotas: ______________. (Choose two)

A. User quotasB. Tree quotasC. Root quotasD. Group quotasE. File quotas

Correct Answer: ADSection: OnTap AdministrationExplanation

Explanation/Reference:http://backdrift.org/man/netapp/man1/na_quota.1.html

User and group quotas do not apply to the root user or to the Windows Administrator account; tree quotas,however, do apply even to root and the Windows Administrator account.

QUESTION 3Which two Volume SnapMirror (VSM) relationship are supported? (Choose two)

A. Data ONTAP 8.0.2 64-bit -->Data ONTAP 8.1 64-bitB. Data ONTAP 8.0.2 32-bit --> Data ONTAP 8.0.2 64-bitC. Data ONTAP 7.3.2 32-bit --> Data ONTAP 8.1 64-bitD. Data ONTAP 7.3.2 32-bit --> Data ONTAP 8.0.2 64-bit

Correct Answer: ACSection: Data ProtectionExplanation

Explanation/Reference:Data OnTap 8.1 supports volume snapmirror of 32-bit aggregates to 64-bit aggregates from earlier versions.

QUESTION 4Which statement is true about expanding an aggregate from 32-bit to 64-bit in place?

A. All aggregates are automatically converted from 32-bit to 64-bit with the Data ONTAP 8.1upgrade.B. The expansion is triggered by an aggr convert command.C. The expansion is triggered by adding disks to exceed 16 TB.D. The 32-bit aggregates are degraded and must be Volume SnapMirrored to a new 64- bitaggregates with

Data ONTAP 8.1 upgrade.

Correct Answer: CSection: Large AggregatesExplanation

Explanation/Reference:http://www.ntapgeek.com/2011/12/how-in-place-expansion-works.html

To upgrade an aggregate in-place, the only available method is to add disks to expand the aggregate to >16TB.

QUESTION 5What utility on the storage system will allow you to capture network packet information?

A. snoop

B. netstat

C. pktt

D. traceroute

Correct Answer: CSection: OnTap AdministrationExplanation

Explanation/Reference:The pktt command controls a simple on-filer packet tracing facility. Packets can be captured into a tracebuffer then dumped to a file, or the captured data can be logged to a file. The data is stored in "tcpdump"format, and can be directly viewed with tcpdump, ethereal, and perhaps other viewers. The output can also beconverted using the editcap(1) program to a variety of other formats, including Sniffer, NetMon, and snoop.

QUESTION 6Which two modes support using SnapMirror over multiple network paths?

A. StandaloneB. PartnerC. MultiD. FailoverE. Give back

Correct Answer: CD

Section: Data ProtectionExplanation

Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-75BD4540-A103-4E2B-8B0A-E6BBC0D3F43F.htmlhttp://backdrift.org/man/netapp/man5/na_snapmirror.conf.5.html

Two multipath methods are supported:

The multiplexing mode causes snapmirror to use both paths at the same time. If one should fail, it will switchto use the remaining path only and use both again should the failing path be repaired.

Failover mode causes snapmirror to use the first path as the desired path and only use the second path shouldproblems arise with the first path.

QUESTION 7Which two operations can be performed with the SnapDrive for windows graphical user interface?

A. Create volumeB. Create Snapshot copiesC. Create FileD. Create Disk

Correct Answer: BDSection: Data ProtectionExplanation

Explanation/Reference:https://library.netapp.com/ecm/ecm_download_file/ECMM1278920

What SnapDrive does

SnapDrive software integrates with the Windows Volume Manager so that NetApp filers can serve as virtualstorage devices for application data in Windows 2000 Server and Windows Server 2003 environments.SnapDrive is dependent on the virtual disk service. The virtual disk service must be started on the host prior toinstalling SnapDrive. SnapDrive manages virtual disks (LUNs) on a NetApp filer, making these virtual disksavailable as local disks on Windows hosts. This allows Windows hosts tointeract with the virtual disks just as if they belonged to a directly attached redundant array of independent disks(RAID).

SnapDrive provides the following additional features:

It enables online storage configuration, virtual disk expansion, and streamlined management.

It integrates NetApp Snapshot technology, which creates point-in-time images of data stored on virtualdisks.

It works in conjunction with SnapMirror® software to facilitate disaster recovery from either asynchronouslyor synchronously mirrored destination volumes.

QUESTION 8Which action will cause a currently in-sync SnapMirror relationship to fail out of sync?


A. Running snapmirror update on the source storage system.

B. Running snapmirror release on the source storage system.

C. Modifying the /etc/snapmirror.conf file for the relationship on the source storage system

D. Modifying the /etc/snapmirror.conf file for the relationship on the destination storage system.

Correct Answer: DSection: Data ProtectionExplanation

Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_snapmirror.1.htmlhttps://library.netapp.com/ecmdocs/ECMP1196979/html/man5/na_snapmirror.conf.5.html

snapmirror update [ -S source ] [ -k kilobytes ] [ -s src_snap ] [ -ccreate_dest_snap ] [ -w ] destination

For asynchronous mirrors, an update is immediately started from the source to the destination to update themirror with the contents of the source.

For synchronous mirrors, a snapshot is created on the source volume which becomes visible to clients of thedestination volume.

The snapmirror update command must be issued on the destination filer.

snapmirror release source { filer:volume | filer:qtree }

Tell SnapMirror that a certain direct mirror is no longer going to request updates.

If a certain destination is no longer going to request updates, you must tell SnapMirror so that it will no longerretain a snapshot for that destination. This command will remove snapshots that are no longer needed forreplication to that destination, and can be used to clean up SnapMirror-created snapshots after snapmirrorbreak is issued on the destination side.

The source argument is the source volume or qtree that the destination is to be released from. The destinationargument should be either the destination filer and destination volume name or the destination filer anddestination qtree path. You can use a line from the output of the snapmirror destinations command as the set ofarguments to this command.

The /etc/snapmirror.conf file exists on the node containing the mirror used for SnapMirror.

QUESTION 9You are trying to do a single file SnapRestore for a file, but you are receiving an error message that thedirectory structure no longer exists. Which is the most likely explanation?

A. Once the directory structure has been deleted, you cannot restore the file using single file SnapRestore.You must now SnapRestore the volume.

B. Snapshot copies have been created since the original directory structure was deleted.C. You must recreate the directory structure before trying to restore the file.D. You cannot restore a file to an alternate location.

Correct Answer: CSection: Data ProtectionExplanation

Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-35C9A4BA-02BA-4965-A366-698C1299E29D.html

You can restore a file only to the volume where it was originally located. The directory structure to which a file isto be restored must be the same as that specified in the path. If this directory structure does not exist, you mustcreate it before restoring the file.

QUESTION 10An iSCSI ______________ is established when the host initiator logs into the iSCSI target. Within a______________ you can have one or more ____________.

A. session, session, connectionsB. connection, session, connectionsC. connection, connection, sessionsD. session, connection, sessions

Correct Answer: ASection: SANExplanation

Explanation/Reference:http://scst.sourceforge.net/mc_s.htmlhttp://www.alacritech.com/legacypdf/iSCSI_Multiple_Connections.pdf

Meme: Remember the acronym: MCS or MC/S - Multiple Connections per Session. Microsoft Windows 2008'sMPIO driver supports MC/S.

QUESTION 11For each Open Systems platform directory to be backed up to the SnapVault secondary storage system youmust execute _____________.

A. An initial baseline copyB. A temporary copyC. An incremental copyD. A scheduled update copy


Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-EEBC8B52-BEA9-4B49-874F-7EC78D3F602E.html

Each open systems platform, when prompted by the secondary system, transfers initial base images ofspecified directories to qtree locations on the secondary system.

Note: There are no primary-side Snapshot copies in Open Systems SnapVault.

QUESTION 12Which exportfs command will temporally export the resource while ignoring the options specified in the /etc/exports file?

A. exportfs - v <path>

B. exportfs - u <path>

C. exportfs - a <path>

D. exportfs - i <path>

Correct Answer: DSection: OnTap AdministrationExplanation

Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_exportfs.1.html

exportfs [ -v ] [ -io options ] path

-i Ignores the options specified for a file system path in the /etc/exports file. If you do not specify the -ioption with the -o option, Data ONTAP uses the options specified for the file system path in the /etc/exports file instead of the options you specify on the command line.

QUESTION 13Which two cp types would indicate a busy storage system? (Choose two).

A. cp_from_log_fullB. cp_from_busyC. cp_from_cpD. cp_from_timer

Correct Answer: ACSection: OnTap AdministrationExplanation

Explanation/Reference:http://backdrift.org/man/netapp/man1/na_sysstat.1.htmlhttp://redhunter.com/blog/2010/02/11/netapp-consistency-points-in-cacti/

cp_from_log_full (log full) - the current NVRAM bank is full and the system switches to the other one andstarts writing this to disk. Very heavy write activity.

cp_from_cp (aka Back to Back) - filer is overloaded. The write traffic is coming in faster than it can be writtenand the filer is running out of NVRAM capacity in one bank before the data in the other bank can be written.

cp_from_busy is not a real cp type

cp_from_timer - 10 seconds since the last CP – it means the system is pretty idle write-wise.

QUESTION 14Which statement describes the results of the snapmirror resync command?

A. Resynchronization finds the newest common snapshot shared by the two volumes or qtree, and removes allnewer information on the storage system on which the command is run.

B. Resynchronization will cause the loss of all data written to the destination after the original basesnapshotwas made.

C. Resynchronization will update the snapshot on the destination filer.D. Resynchronization will update the snapshot on the source filer.


Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_snapmirror.1.html

snapmirror resync [ -n ] [ -f ] [ -S source ] [ -k kilobytes ] [ -s src_snap ] [ -ccreate_dest_snap ] [ -w ] destination

Resynchronizes a broken-off destination to its former source, putting the destination in the snapmirrored stateand making it ready for update transfers. The resync command must be issued on the destination node.

The resync command can cause data loss on the destination. Because it is effectively makingdestination a replica of the source, any edits made to the destination after the break will be undone.

For formerly mirrored volumes, the resync command effectively performs a SnapRestore (see na_vol(1)) on the destination to the newest snapshot which is common to both the source and thedestination. In most cases, this is the last snapshot transferred from the source to the destination, butit can be any snapshot which is on both the source and destination due to SnapMirror replication. Ifnew data has been written to the destination since the newest common snapshot was created, that datawill be lost during the resync operation.

QUESTION 15Host multi-pathing describes a ____________ solution that has at least two distinct ______________ paths to aLUN.

A. Token ring, physicalB. FC SAN, virtualC. FC or IP SAN, virtualD. FC or IP SAN, Physical

Correct Answer: DSection: SANExplanation

Explanation/Reference:http://en.wikipedia.org/wiki/Multipath_I/O

Fiber Channel (FC), FCoE and iSCSI encapsulate SCSI-3. FCoE and iSCSI further encapsulate the transportwithin IP; hence the term IP SAN.

In computer storage, multipath I/O is a fault-tolerance and performance enhancement technique whereby thereis more than one physical path between the CPU in a computer system and its mass storage devices throughthe buses, controllers, switches, and bridge devices connecting them.

A simple example would be a SCSI disk connected to two SCSI controllers on the same computer or a diskconnected to two Fibre Channel ports. Should one controller, port or switch fail, the operating system can routeI/O through the remaining controller transparently to the application, with no changes visible to the applications,other than perhaps incremental latency.

QUESTION 16Which two will allow you to read and analyze a packet trace file generated by the storage system? (Choosetwo)

A. WireSharkB. PkttC. NetmonD. Eternal View

Correct Answer: ACSection: OnTap AdministrationExplanation

Explanation/Reference:pktt is part of the Data OnTap command set.

The output of pktt is not very human-readable, but it utilizes the tcpdump format which many traffic analyzerscan read or import. Only two such analyzers have been offered here.

Wireshark is the successor of Etherreal, and available for several platforms. Netmon is a Microsoft project,available for Windows, soon to be deprecated by the Microsoft Message Analyzer project.

QUESTION 17When will a Volume SnapMirror (VSM) from a 64-bit source to a 32-bit destination volume fail?

A. When the 64-bit volumes has Volume Guarantee disabledB. When the 64-bit volume has compression enabledC. When the 64-bit volume has FlexShare enabledD. When the 64-bit volume has ASIS enabled

Correct Answer: BSection: Data ProtectionExplanation

Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196986/html/GUID-87340429-8F4A-4AA6-B081-0F5040089C78.html

Data compression requires 64-bit aggregates.

QUESTION 18Which NetApp Storage Tier component works controller-wide on a FAS controller?

A. Flash PoolB. Flash DiskC. Flash AccelD. Flash CacheE. Flash IO


Explanation/Reference:http://www.netapp.com/us/system/pdf-reader.aspx?m=ds-3177-0512.pdf&cc=us

http://www.netapp.com/us/products/storage-systems/flash-cache/index.aspx?ref_source=ntp141p359372brg-c-26967a63-442e-c7e9-6a73-00002efa4dd6&gclid=CLLdsqWKrbkCFS4aOgodb1AAuA

Flash Cache is a controller-attached PCIe intelligent caching solution.

Flash Accel is a host-attached caching solution.

Flash Pool utilizes SSDs to enhance performance of disk aggregates (implicitly not controller-wide).

Flash Disk and Flash IO are ambiguous terms.

QUESTION 19What are two methods of protecting LUN overwrites using Snapshot copies on a volume with fractional reserveset to 0%? (Choose two)

A. Snap AutodeleteB. iGroup throttleC. LUN resetD. Volume AutoSize


Explanation/Reference:https://communities.netapp.com/groups/chris-kranz-hardware-pro/blog/2009/03/05/fractional-reservation--lun-overwrite

From the article:"If you reduce the Fractional Reservation to 0, you need to make sure the rate of change is within the volumesize, or you need to make sure the volume can auto-grow when required or even snap auto-delete to reducethe reserved blocks and free up space (although I am not a huge fan of snap auto-delete for various reasons)."

QUESTION 20Which set of protocols provide block-level access to NetApp storage?

A. SNA and RPCB. iSCSI and FCPC. HTTP and FTPD. CIFS and NFS

Correct Answer: BSection: SANExplanation

Explanation/Reference:iSCSI and Fiber Channel encapsulate SCSI protocol, simulating direct disk access. These are commonlyreferred to as a block storage protocols. FCoE is another such protocol.

CIFS and NFS, HTTP and FTP provide file access not block access.

QUESTION 21Which three protocols can coexist on a NetApp storage system? (Choose three)

A. DAFSB. CIFS

C. DFSD. FCPE. NFS

Correct Answer: BDESection: OnTap AdministrationExplanation

Explanation/Reference:Data OnTap can simultaneously serve NAS and SAN protocols. CIFS, NFS, and FC protocol are examples ofNAS and SAN protocols respectively.

Data OnTap 7.1 or later does not support DAFS.

DFS provides location transparency and redundancy by allowing shares in multiple different locations to belogically grouped under one folder, or DFS root. While practically a CIFS server shared by a Data OnTap filercan be a DFS target, DFS namespaces can only be hosted on Windows systems.

QUESTION 22Which command disables client access to Snapshot copies on a volume called flexvoll?

A. cifs shares -change flxvoll -nosnap

B. snap access flexvoll off

C. vol options flexvoll nosnapdir on

D. vol options flexvoll snapdir off

E. vol options flexvoll snapdir on


Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_vol.1.html

vol options nosnapdir [on|off]

If this option is on, it disables the visible .snapshot directory that is normally present at client mount points, andturns off access to all other .snapshot directories in the volume. The default setting is off.

QUESTION 23When using MetroCluster in a forced takeover mode, identify two methods for restricting access to the disastersite node. (Choose two)

A. Use manual fencingB. Use the cf giveback -f command.C. Use the cf forcetakeover -d command.D. Turn off power to the disaster site node.E. Isolate the failed node from the surviving node.

Correct Answer: ADSection: High AvailabilityExplanation

Explanation/Reference:http://vipulvajpayeestorage.blogspot.com/2012/01/manually-failover-activity-in-netapp.html

In order to test or effect a Disaster Recovery operation, you must restrict access to the disaster site nodeto prevent the node from resuming service. If you do not, you risk the possibility of data corruption.

Access to the disaster site note can be restricted in the following ways:

Turn off the power to the disaster site node Use "manual fencing" (Disconnect VI interconnects and fiber channel cables; either physically or throughconfiguration changes on the fabric switches.)

Isolating the failed node from the surviving node could still lead to the possibility of a split brain, so this is not acorrect answer.

QUESTION 24Five minutes ago, you performed a single file SnapRestore on a large NFS file. 40% of your NFS users are nowcomplaining about getting "stale file handles" for the file. Which is the most likely cause of this problem, and thebest procedure to correct it?

A. This might be due to an NFS storage system and client mismatch. Check to see that these users have thesame version of the NFS client that existed at the time the snapshot was taken.

B. NFS users why try to access a reverted file without first reopening it might get a "stale file handle" errormessage. Have the users try to reopen the file and see if the problem is resolved.

C. After a single file SnapRestore, NFS users have to reboot their systems. Have them reboot their systems.D. These users are on a different subnet from the others. Start troubleshooting by checking their subnet.

Correct Answer: BSection: OnTap AdministrationExplanation

Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-35C9A4BA-02BA-4965-A366-698C1299E29D.html

Reverting a file to a selected Snapshot copy

Using snap restore to revert a single file to a selected Snapshot copy is practical when the file is so large thatyou cannot copy the previous file version from the Snapshot copy to the active file system.

Before you begin

Ensure that you notify the network users before reverting a file so that they know that the current data in the filewill be replaced by that of the selected Snapshot copy.

Note: NFS users who try to access a reverted file without first reopening it might get a stale filehandle error message after the volume reversion.

QUESTION 25Using the output below, a co-worker determined that these are types "Solaris" LUNs. What would yourdestination be?

lun show -m

LUN path Mapped to LUN ID Protocol-----------------------------------------------------------------------------------/vol/vol1/lun0 solaris - igroup0 0 /vol/vol1/lun solaris- igroup1 0/vol/vol1/qtree1/lun2 solaris - igroup2 0 /vol/vol1/qtree1/lun3 solaris - igroup3

0

A. These are type "Solaris" LUNs.B. Not enough information is given here. Run the lun status command to get the information requested.

C. Not enough information is given here. Run the lun show -v command to get the information requested.

D. Not enough information is given here. Run the lun map command to get the information requested.


Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_lun.1.html

lun show [ -v | -m | -c ] [ all | mapped | offline | online | unmapped | staging| -g initiator_group | -n node | -l vol_name | lun_path ]

Displays the status (lun_path, size, online/offline state, shared state) of the given LUN or class of LUNs. Withthe -v option supplied, additional information (comment string, serial number, LUN mapping, HA Pair SharedVolume Information) is also displayed. With the -m option supplied, information about lun_path to initiator_groupmappings is displayed in a table format. With the -c option supplied, information about LUN cloning status isdisplayed.

A specific LUN can be indicated by supplying its lun_path. When an initiator_group is specified, status isreported for all LUNs that are mapped to the initiator group. When a node is specified, status is reported for allLUNs that are mapped to initiator groups which contain that node. When staging is specified, information aboutthe temporary LUNs preserved in the staging area is reported. When vol_name is specified, status is reportedfor all the LUNs in that volume.

Mapped LUNs are ones with at least one map definition. A LUN is online if it has not been explicitly made offlineusing the lun offline command.

QUESTION 26Which MetroCluster configuration procedure is recommended for re-establishing a mirrored volume that was ina level-0 resynchronization state when it failed?

A. Determine which volumes are at the remote and disaster sites.B. Re-create the synchronous mirror.C. Rejoin the two volumes.D. Turn on power to the cluster node at the disaster site.

Correct Answer: BSection: High AvailabilityExplanation

Explanation/Reference:

https://library.netapp.com/ecmdocs/ECMP1210206/html/GUID-A865DB95-9418-4ED2-A993-74F347F674A0.html

1. Validate that you can access the remote storage by entering the following command:

aggr status -r

Note: A (level-0 resync in progress) message indicates that a plex cannot be rejoined.

2. Turn on the power to the node at the disaster site. After the node at the disaster site boots up, it displays thefollowing:

Waiting for giveback...(Press Ctrl-C to abort wait)

3. If the aggregates at the disaster site are online, take them offline by entering the following command for eachaggregate that was split:

aggr offline disaster_aggr

disaster_aggr is the name of the aggregate at the disaster site.Note: An error message appears if the aggregate is already offline.

4. Destroy every target plex that is in a level-0 resync state by entering the following command:

aggr destroy plex_name

5. Re-create the mirrored aggregates by entering the following command for each aggregate that was split:

aggr mirror aggr_name -v disaster_aggr

aggr_name is the aggregate on the surviving site’s node.disaster_aggr is the aggregate on the disaster site’s node.The aggr_name aggregate rejoins the disaster_aggr aggregate to reestablish the MetroClusterconfiguration.

6. Enter the following command at the partner node:

cf giveback

The node at the disaster site reboots.

QUESTION 27If you believe you have a FC SAN performance problem, which NetApp utility would gather both your Solarishost and storage system data for analysis?

A. sio_ntap.exe

B. prestart

C. poststat

D. perfstat


Explanation/Reference:https://communities.netapp.com/docs/DOC-1059

Performance and Statistics Collector (perfstat) is a data collection tool with several key properties:

Captures all needed performance information with one command Captures information from host(s) and filer(s) Captures all information simultaneously for cross correlation Operates on all host platforms and all filer platforms All captured data is recorded in a single plain-text output file

Perfstat comes in exactly two flavors:

Unix/Linux version (perfstat.sh) Windows version (perfstat.exe)

Supported platforms:

Unix: AIX, HP-UX, Linux, OSF1, Solaris, FreeBSD Windows: 2000/XP/2003

QUESTION 28Which three are valid LUN commands? (Choose three)

A. lun cloneB. lun copyC. lun moveD. lun renameE. lun snap

Correct Answer: ACESection: OnTap AdministrationExplanation


The following commands are available in the lun suite:

clone help online share comment map resize show config_check maxsize serial snap create move set stats destroy offline setup unmap

QUESTION 29Which three attributes would you specify when creating a LUN? (Choose three)

A. The host operating system of the system attached to LUN.B. The version of Data ONTAP.C. The size of the LUN.D. The path to the LUN.

Correct Answer: ACDSection: OnTap AdministrationExplanation


The usage for lun create is shown below. Options not in brackets are mandatory.

lun create -s size -t ostype [ -o noreserve ] [ -e space_alloc ] lun_path

This usage of the lun create command should be employed to create a new LUN of given size, with initially zerocontents. The LUN is created at the lun_path given. No file should already exist at the given lun_path. Thedirectory specified in the lun_path must be a qtree root directory.

The size is specified in bytes. Optionally, a number followed by a one-character multiplier suffix can be used: c(1), w (2), b (512), k (1024), m (k*k), g (k*m), t (m*m).

The size of the created LUN could be larger than the size specified, in order to get an integral number ofcylinders while reporting the geometry using SAN protocols.

The size of the LUN actually created is reported if it is different from that specified in the command.

The mandatory ostype argument is one of: solaris (the LUN will be used to store a Solaris raw disk in a single-slice partition), windows (the LUN will be used to store a raw disk device in a single-partition Windows diskusing the MBR (Master Boot Record) partitioning style), hpux (the LUN will be used to store HP-UX data), aix(the LUN will be used to store AIX data), vld (the LUN contains a SnapManager VLD), linux (the LUN will beused to store a Linux raw disk without any partition table), netware (the LUN will be used to store NetWaredata), vmware (the LUN will be used to store VMware data), windows_gpt (the LUN will be used to storeWindows data using the GPT (GUID Partition Type) partitioning style), windows_2008 (the LUN will be used tostore Windows data for Windows 2008 systems), openvms (the LUN will be used to store Open-VMS data), xen(the LUN will be used to store Xen data), hyper_v (the LUN will be used to store Hyper-V data), solaris_efi (theLUN will be used to store Solaris_EFI data).

By default, the LUN is space-reserved. To manage space usage manually, -o noreserve can be specified.Using this option will create a LUN without any space being reserved. Provisioning threshold events can beenabled by specifying -e space_alloc option. This option has to be used in conjunction with -o noreserve.

QUESTION 30Which three items are NFS resources for export? (Choose three.)

A. aggregateB. directory/qtreeC. fileD. subnetE. volume

Correct Answer: BCESection: OnTap AdministrationExplanation

Explanation/Reference:You can export any file path. Implicitly file paths are filesystem objects. You can export a directory, a qtree, avolume or even a file.

QUESTION 31Which changes the NDMP password on the Open System SnapVault agent?

A. password

B. password <new_password>

C. svpasswd <new_password>

D. svpassword <new_password>

Correct Answer: DSection: Data Protection

Explanation

Explanation/Reference:https://kb.netapp.com/support/index?page=content&id=2010134&actp=LIST_RECENT&viewlocale=en_US&searchid=1296570465177

The svpassword command is available on the OSSV host as part of the agent binaries in the path<INSTALL_PATH>\netapp\snapvault\bin.

QUESTION 32Which three licenses are required for fabric-attached MetroCluster? (Choose three.)

A. ClusterB. Cluster_remoteC. Syncmirror_localD. Syncmirror_fabricE. Syncmirror_remote

Correct Answer: ABCSection: High AvailabilityExplanation

Explanation/Reference:https://communities.netapp.com/servlet/JiveServlet/previewBody/4803-102-1-6405/tr-3548.pdfhttp://backdrift.org/man/netapp/man1/na_license.1.html

In preparation for a fabric attached metrocluster configuration, the following licenses must be installed:

clustersyncmirror _localcluster_remote

syncmirror_fabric and syncmirror_remote are not valid license types.

QUESTION 33Which are three characteristics of an iSCSI or FCP SAN implementation? (Choose three.)

A. A LUN can be converted into a VLD.B. LUNs can be accessed using the FCP protocol.C. LUNs can be accessed using the iSCSI protocol.D. Block services are associated with an iSCSI or FCP SAN environment.

Correct Answer: BCDSection: SANExplanation

Explanation/Reference:Sadly, you cannot convert a LUN into a Vulcan Language Dictionary.

QUESTION 34For automatic user name mapping to occur for a CIFS and UNIX user name that are the same, you must dowhat?

A. Enter the CIFS user in the NIS database.B. Enter the user names in the /etc/hosts.equiv file.C. Use both a NIS server and a Domain Controller in the network.

D. Nothing: mapping will occur if user name authentication is available.


Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196993/html/GUID-09C7812F-E6EA-47C6-AB79-EAB803E7A8EB.html

If the user names in the UNIX password database are identical to the Windows names, you need not providethe mapping information in the /etc/usermap.cfg file.

QUESTION 35NTFS security style allows file access based on ___________.

A. NT ACLs and SID.B. NT ACLs and UNIX permissions.C. SID and password.D. UNIX permissions.

Correct Answer: ASection: OnTap AdministrationExplanation

Explanation/Reference:http://hd.kvsconsulting.us/netappdoc/801docs/html/ontap/smg/GUID-866DD79D-D2A6-4FBA-B0BD-A63560FECEFF.html

In OnTap 8.0, when NTFS security style is used, only Windows style security objects are used.

For CIFS clients, security is handled using Windows NTFS ACLs.

For NFS clients, the NFS UID (user id) is mapped to a Windows SID (security identifier) and its associatedgroups. Those mapped credentials are used to determine file access, based on the NFTS ACL.

QUESTION 36UNIX security style allows file access based on __________.

A. GID or UID and ACLs.B. GID or UID and UNIX permissions.C. NT ACLs and SID.D. NT ACLs and UNIX permissions.


Explanation/Reference:http://hd.kvsconsulting.us/netappdoc/801docs/html/ontap/smg/GUID-866DD79D-D2A6-4FBA-B0BD-A63560FECEFF.html

In OnTap 8.0, when UNIX security style is selected, only UNIX security objects can be used. The correctanswer is GID, UID and UNIX permissions.

Basic UNIX permissions are organized into three classes: user, group, and others.

UNIX operating systems identify users with a numerical value: a user identifier, also known as a UID or User ID.Each user is a member of a group of the same name as the user. Like UIDs, groups (GIDs) are also specifiedusing a numerical value.

QUESTION 37Which two statements apply to an entry in the /etc/exports file regarding exporting directories/qtrees andvolumes? (Choose two.)

A. Each volume must be exported separately.B. Exports are accessible only to hosts with names.C. User names used in an export must be resolvable.D. Exports can access multiple paths on the same volume.


Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196890/html/man5/na_exports.5.html

IP addresses and wildcards can be used when specifying host targets in exports.

User names are not valid exports options, save for the anon option which utilizes a local system UID or username (i.e. no user name mapping or resolution is performed.)

The highest level in the filesystem that can be specified for an export is the volume level. Implicitly this meansthat each volume must be exported separately.

An export provides access to paths below the export, implying that multiple paths on the same volume can beexported from an export.

QUESTION 38To automatically export volumes and directories on storage system reboot, include them in the /etc/exports file.

A. TrueB. False


Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196890/html/man5/na_exports.5.html

The /etc/exports file contains a list of export entries for all file system paths that Data ONTAP exportsautomatically when NFS starts up.

QUESTION 39Which two are Data ONTAP commands for displaying performance information? (Choose two.)

A. nfsstatB. perfstatC. sio_ntap_sollD. sysstat


Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_sysstat.1.htmlhttps://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_nfsstat.1.html

nfsstat and sysstat are OnTap commands used for performance information.

sio_ntap_soll is not an OnTap command.

Perfstat is a GUI performance tool, not an OnTap command. Think of PerfMon for Windows to remind you thatPerfStat is a Windows tool. Note how many of the ONTAP performance commands end in stat.

QUESTION 40Which statement best describes the output of this command?

sysstat -s 5

A. Display the default output every five seconds and terminate after five counts.B. Display extended output every five seconds and print a summary after five counts.C. Display extended output every five seconds and print a summary upon termination.D. Display the default output every five seconds and print a summary upon termination.


Explanation/Reference:http://backdrift.org/man/netapp/man1/na_sysstat.1.html

-s Display a summary of the output columns upon termination, descriptive columns such as `CP ty' will not havesummaries printed. Note that, with the exception of `Cache hit', the `Avg' summary for percentage values is anaverage of percentages, not a true mean of the underlying data. The `Avg' is only intended as a gross indicatorof performance. For more detailed information use tools such as na_nfsstat, na_netstat, or statit.

QUESTION 41These are three methods of creating a LUN:

lun createlun maplun setup

A. TrueB. False



The following commands are available in the lun suite:

clone help online share comment map resize show config_check maxsize serial snap create move set stats destroy offline setup unmap

lun create -s size -t ostype [ -o noreserve ] [ -e space_alloc ] lun_path

lun setupEasy to use interactive mechanism for setting up initiator groups, LUNs, and mapping configuration.

lun map [ -f ] lun_path initiator_group [ lun_id ]

Maps a LUN to all the initiators in the supplied group

QUESTION 42Which command displays the statistics for Ethernet network interfaces?

A. ifconfig

B. ifstat

C. sysconfig

D. sysstat


Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_ifstat.1.html

ifstat - display device-level statistics for network interfaces

QUESTION 43What are three true statements about physical reallocation of data added in ONTAP 7.3? (Choose three.)

A. Use reallocate start -p pathname to run the physical reallocate.

B. Use aggr reallocate -p pathname to run the physical reallocate.

C. Reinitialize any SnapMirror relationship for the new physical geometry.D. Volume Snapshots do not need to be deleted for the reallocate to run effectively.E. Don't run it on files, volumes, and LUNs that are in an aggregate created by a version of ONTAP earlier

than 7.2.

Correct Answer: ADESection: OnTap AdministrationExplanation

Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_reallocate.1.html

The -p option requests that reallocation of user data take place on the physical blocks in the aggregate, but thelogical block locations within a flexible volume are preserved.

Aggregate reallocation is not supported on aggregates created prior to Data ONTAP 7.2.

Using the -p option may reduce the extra storage requirements in a flexible volume when reallocation is run ona volume with snapshots. It may also reduce the amount of data that needs to be transmitted by SnapMirror onits next update after reallocation is performed on a SnapMirror source volume.

QUESTION 44Which two statements are true of the cf forcetakeover -d command? (Choose two.)

A. Mirrored volumes are implicitly split.B. Partner mailboxes must be available.C. The failed cluster node is powered off automatically.D. The surviving cluster node takes over the functions of the failed partner.

Correct Answer: ADSection: High AvailabilityExplanation

Explanation/Reference:https://communities.netapp.com/servlet/JiveServlet/previewBody/4803-102-1-6405/tr-3548.pdf

It is important to remember that this is the case only when a complete site is lost. In the case of a failedcontroller at one of the sites, a normal cluster failover occurs. Due to the operation of SyncMirror, there is alsoadded protection from multidrive or complete shelf failures. When a storage controller fails in an active-activeconfiguration, the partner detects the failure and automatically (if enabled) performs a takeover of the data-serving responsibilities from the failed controller. Part of this process relies on the surviving controller beingable to read information from the disks on the failed controller. If this quorum of disks is not available, thenautomatic takeover won’t be performed. In a MetroCluster configuration, manually executing a single commandwill allow a takeover to occur in spite of the lack of a quorum of disks. This "forced takeover" process breaks themirrored relationships in order to bring the failed controller’s volumes on line.

forcetakeover -d is very dangerous. Not only can it cause data corruption, if not used carefully, it can alsolead to a situation where both the node and its partner are operational (split brain). As such, it should only beused as a means of last resort when the takeover and forcetakeover commands are unsuccessful inachieving a takeover. The operator must ensure that the partner node does not become operational at any timewhile a node is in a takeover mode initiated by the use of this command. In conjunction with RAID mirroring, itcan allow recovery from a disaster when the two nodes in the HA pair are located at two distant sites.

QUESTION 45Which are three valid data protection solutions? (Choose three.)

A. SnapVault to Volume SnapMirrorB. SnapVault to Volume SnapMirror to SnapVaultC. SnapVault to Volume SnapMirror toVolume SnapMirrorD. Volume SnapMirror to SnapVault

Correct Answer: ACDSection: Data ProtectionExplanation

Explanation/Reference:http://www.redbooks.ibm.com/redpapers/pdfs/redp4268.pdf

When you are using SnapVault in combination with Volume SnapMirror, it is important to understand theirrelationship with Snapshot. You cannot utilize SnapVault to protect a Volume SnapMirror destination, becauseSnapVault and SnapMirror both use the same Snapshot copies; they cannot run simultaneously. Schedulesmust be managed to accommodate the interlock that keeps SnapVault and SnapMirror from stepping on eachother.

QUESTION 46Protection Manager has policies that allow for tape-based protection as well as disk-based protection.

A. TrueB. False


Explanation/Reference:https://library.netapp.com/ecm/ecm_download_file/ECMM1278633

pg 43-45

QUESTION 47XML-files in /etc/stats/preset are used together with the sysstat command to customize the output.

A. TrueB. False


Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_stats.1.htmlhttp://backdrift.org/man/netapp/man5/na_stats_preset.5.html

Data ONTAP provides some XML files that output a predetermined set of statistics that you can use withouthaving to construct a script or type in a complicated command on the command line.

The preset files are located in the /etc/stats/preset directory. To use a preset file, you add -p filename toyour stats show or stats stop command line. You can also add counters on the command line. If any optionsyou specify on the command line conflict with the preset file, your command line options take precedence.

You can also create your own preset files.

QUESTION 48To create a 64-bit aggregate, which optional switch/flag/parameter/option to the aggr create command must beincluded?

A. b 64B. B 64C. l 64D. L 64E. No optional switch/flag/parameter/option is needed because 64-bit aggregates are the default

Correct Answer: BSection: Large AggregatesExplanation

Explanation/Reference:http://www.netapp.com/us/system/pdf-reader.aspx?m=tr-3786.pdf&cc=us

The command to create a 64-bit aggregate is the same aggr create command that is present in Data ONTAP7G for aggregate creation. The aggr create command has a new flag, -B, to specify the type of aggregate tocreate. It takes a value of either 32 or 64 and creates the respective type of aggregate. Therefore the aggrcreate command with -B 64 creates a 64-bit aggregate. The aggr create command without the -B flag by

default creates a 32-bit aggregate.

Here are some commands for creating different aggregate types in Data ONTAP 8.0:

Creating a 64-bit aggregate: aggr create aggr_64 -B 64 5

Creating a 32-bit aggregate using –B flag: aggr create aggr_32 -B 32 5

Creating a 32-bit aggregate without using –B flag: aggr create default_aggr_32 5

Note: the man pages do not include this option in later versions of DOT because 64-bit is now the default.

QUESTION 49After upgrading to DOT 8.07-mode, you can convert existing 32-bit aggregates into 64-bit aggregates.

A. TrueB. False

Correct Answer: BSection: Large AggregatesExplanation

Explanation/Reference:http://www.ntapgeek.com/2011/12/how-in-place-expansion-works.html

To upgrade an aggregate in-place, the only available method is to add disks to expand the aggregate to >16TB.

There is an obscure method using diag mode but that is not supported or mentioned in the exam content. Theanswer is always add disks to grow past 16TB, or migrate.

QUESTION 50With 64-bit aggregates, the number of FlexVols that can be created on a storage controller is _____________.

A. 500B. 1000C. 6400D. 64000

Correct Answer: ASection: Large AggregatesExplanation

Explanation/Reference:http://www.netapp.com/us/products/storage-systems/fas3200/fas3200-tech-specs.aspx

There is no easily remembered reason why its 500. Some people like to remember that there is one otherquestion on the exam that requires you to remember an arbitrary number and the answer is also 500 (distanceof a fiber interconnect at 2Gbps).

QUESTION 51Which two commands would help you troubleshoot a LUN that cannot be accessed by a host? (Choose two.)

A. fcp show wwpn

B. fcp wwpn

C. igroup show

D. lun show -err

E. lun show -v

Correct Answer: CESection: SANExplanation

Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_igroup.1.html

igroup show [ -v ] [ initiator_group ]Displays the nodes in an initiator group and their aliases, set with the fcp wwpnalias command. If noinitiator_group is specified, the members of all initiator groups are displayed. You can use the -v option to get averbose listing.

https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_lun.1.html

lun show [ -v | -m | -c ] [ all | mapped | offline | online | unmapped | staging| -g initiator_group | -n node | -l vol_name | lun_path ]Displays the status (lun_path, size, online/offline state, shared state) of the given LUN or class of LUNs. Withthe -v option supplied, additional information (comment string, serial number, LUN mapping, HA Pair SharedVolume Information) is also displayed. With the -m option supplied, information about lun_path toinitiator_group mappings is displayed in a table format. With the -c option supplied, information about LUNcloning status is displayed.

QUESTION 52Which command shares out the directory /vol/vol2/home using the share name "netapp"?

A. cifs shares -add /vol/vol2 netappB. cifs shares -add /vol/vol2/home/netappC. cifs shares -add netapp vol/vol2D. cifs shares -add netapp /vol/vol2/home


Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_cifs_shares.1.html

cifs shares -add sharename path

QUESTION 53In Data ONTAP, both the Microsoft Windows Administrator and root are exempt from user and group quotas,but not from tree quotas.

A. TrueB. False


Explanation/Reference:http://backdrift.org/man/netapp/man1/na_quota.1.html

User and group quotas do not apply to the root user or to the Windows Administrator account; tree quotas,however, do apply even to root and the Windows Administrator account.

QUESTION 54What command would create a LUN clone named lun0.clone from the LUN lun0 on the volume vol2?

A. lun clone start create /vol/vol2/lun0.clone -b /vol/vol2/lun0 snap_recent

B. lun clone create /vol/vol2/lun0.clone -b /vol/vol2/lun0 snap_recent

C. lun clone create /vol/vol2/lun0 -b /vol/vol2/lun0.clone snap_recent

D. lun clone create /vol/vol2/lun0.clone -b /vol/vol2/lun0 -s snap_recent


Explanation/Reference:http://backdrift.org/man/netapp/man1/na_lun.1.html

lun clone create clone_lunpath [ -o noreserve ] -b parent_lunpath parent_snap

QUESTION 55When using SnapRestore to restore a single LUN, the LUN must be _______________

A. exported and accessibleB. mapped to a Windows serverC. mounted on a hostD. taken offline or unmapped


Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196995/html/GUID-577EDC41-FEA0-4987-8F04-55E736962FD1.html

Always unmount the LUN before you run the snap restore command on a volume containing the LUN or beforeyou run a single file SnapRestore of the LUN. For a single file SnapRestore, you must also take the LUN offline.

QUESTION 56You receive an error message from an iSCSI host stating that there is an authentication error. Which commandwould troubleshoot the failure?

A. iscsi security show

B. iscsi security generate

C. iscsi show authentication

D. iscsi security authentication


Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_iscsi.1.html

iscsi security show

Display the default authentication and all the initiator specific authentication information.

Hint: Remember that the iscsi command is mostly structured "iscsi noun verb", unlike the fcp command which isstructure "fcp verb noun". Example: iscsi initiator show, fcp show initiator.

QUESTION 57Which three steps should be taken when troubleshooting a "stale nfs file handle" response to a NFSmount request on a Solaris system? (choose three)

A. check the client's fstab

B. check the /etc/sd.conf file on the client

C. check show mount -e to the storage system from the client

D. check for connectivity to the storage system from the clientE. check the output of the exportfs command on the storage system

Correct Answer: ADESection: OnTap AdministrationExplanation

Explanation/Reference:The fstab file reflects the defined filesystem mount paths (including NFS mounts).

Always check network connectivity when a problem arises with a network service.

The exportfs command will display the active exports on the storage system.

QUESTION 58Which three configurations would increase data transfer rates in a volume SnapMirror environment fortraditional volumes?

A. The destination volumes are flexible volumes.B. The destination and source contain disks of the same size.C. The destination and the source contain RAID groups of the same size.D. The destination and source contain the same number of raid groups.E. The destination and source storage systems are no father than 30 meters apart.

Correct Answer: BCDSection: Data ProtectionExplanation

Explanation/Reference:By aligning the performance of the source and destination, optimal data transfer (aka replication) rates can beattained. Flexvols don't matter, and there is no measurable difference between the performance of a networkover a 30m or 3m cable.

QUESTION 59Identify the two commands that could be entered on a system with a SnapMirror source. (choose two)

A. snapmirror update

B. snapmirror status

C. snapmirror initialize

D. options snapmirror.access all

Correct Answer: BDSection: Data ProtectionExplanation

Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_snapmirror.1.htmlhttp://www.uow.edu.au/~blane/netapp/ontap/cmdref/man1/na_options.1.htm

update [ -S source ] [ -k kilobytes ] [ -s src_snap ] [ -c create_dest_snap ][ -w ] destination

For asynchronous mirrors, an update is immediately started from the source to the destination to update themirror with the contents of the source.

For synchronous mirrors, a snapshot is created on the source volume which becomes visible to clients of thedestination volume.

The update command must be issued on the destination node.

status [ -l | -t | -q ] [ volume | qtree ... ]

Reports status of all the SnapMirror relationships with a source and/or destination on this node. This commandalso reports whether SnapMirror is on or off. If any volume or qtree arguments are given to the command, onlythe SnapMirror relationships with a matching source or destination will be reported. If the argument is invalid,there won't be any status in the output.

initialize [ -S source ] [ -k kilobytes ] [ -s src_snap ] [ -ccreate_dest_snap ] [ -w ] destination

Starts an initial transfer over the network. An initial transfer is required before update transfers can take place.The initialize command must be issued on the destination node. If the destination is a volume, it must berestricted (see na_vol(1) for information on how to examine and restrict volumes). If the destination is a qtree, itmust not already exist (see na_qtree(1) for information on how to list qtrees). If a qtree already exists, it must berenamed or removed (using an NFS or CIFS client), or snapmirror initialize to that qtree will not work.

snapmirror.accessThis option determines which SnapMirror destination filers may initiate transfers, and over which networkinterfaces. When set to "legacy", SnapMirror uses the older snapmirror.allow to determine access. The optionvalue is a string containing an expression which provides the access filter. An example of the options commandfor snapmirror.access is options snapmirror.access host=toaster,fridge. The default value is "legacy". Seena_snapmirror(1) , na_snapmirror.allow(5) and na_protocolaccess(8) for more details. The snapmirror.allow file exists on the source filer used for SnapMirror.

QUESTION 60Which command creates a new SyncMirror aggregate, letting Data ONTAP select the disk drives?

A. aggr create aggrX -d 12B. aggr create aggrX -m 12C. aggr mirror aggrX -m 12D. aggr mirror aggrX -n 12


Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_aggr.1.html

The following commands are available in the aggr suite:

add mirror restrict undestroy copy offline scrub verify create online show_space destroy options split media_scrub rename status

aggr create aggrname

If you use the -d disk1 [ disk2 ... ] argument, the node creates the aggregate with the specified spare disksdisk1, disk2, and so on. You can specify a space-separated list of disk names. Two separate lists must bespecified if the new aggregate is mirrored. In the case that the new aggregate is mirrored, the indicated disksmust result in an equal number of disks on each new plex.

The disks in a plex are not permitted to span spare pools. This behavior can be overridden with the -f option.The same option can also be used to force using disks that do not have matching rotational speed. The -foption has effect only when used with the -d option specifying disks to use.

The -m option can be used to specify that the new aggregate be mirrored (have two plexes) upon creation. Ifthis option is given, then the indicated disks will be split across the two plexes. By default, the new aggregatewill not be mirrored.

aggr mirror aggrname

The -n option can be used to display the command that the system will execute without actually making anychanges. This is useful for displaying the automatically selected disks, for example.

QUESTION 61Which SyncMirror command mirrors an existing unmirrored aggregate where Data ONTAP selects the diskdrive?

A. aggr mirror aggrYB. aggr mirror aggrY -mC. aggr mirror aggrT -d 12@144D. aggr mirror aggrY -m 12@144

Correct Answer: ASection: High AvailabilityExplanation


aggr mirror aggrname[ -f ][ -n ][ -v victim_aggrname ][ -d disk1 [ disk2 ... ] ]

Turns an unmirrored aggregate into a mirrored aggregate by adding a plex to it. The plex is either newly-formedfrom disks chosen from a spare pool, or, if the -v option is specified, is taken from another existing unmirroredaggregate. Aggregate aggrname must currently be unmirrored. Use aggr create to make a new, mirroredaggregate from scratch.

Disks may be specified explicitly using -d in the same way as with the aggr create and aggr add commands.The number of disks indicated must match the number present on the existing aggregate. The disks specifiedare not permitted to span disk pools. This behavior can be overridden with the -f option. The -f option, incombination with -d, can also be used to force using disks that have a rotational speed that does not match that

of the majority of existing disks in the aggregate.

If disks are not specified explicitly, then disks are automatically selected to match those in the aggregate'sexisting plex.

The -v option can be used to join victim_aggrname back into aggrname to form a mirrored aggregate. Theresult is a mirrored aggregate named aggrname which is otherwise identical to aggrname before the operation.Victim_aggrname is effectively destroyed. Victim_aggrname must have been previously mirrored withaggrname, and then separated via the aggr split command. Victim_aggrname must be offline. Combined withthe -v option, the -f option can be used to join aggrname and victim_aggrname without prompting the user.

The -n option can be used to display the command that the system will execute without actually making anychanges. This is useful for displaying the automatically selected disks, for example.

QUESTION 62When troubleshooting a double disk failure with SyncMirror, you decide to remove and destroy a plex from amirrored aggregate. What steps remove a plex from a mirrored aggregate?

A. Take the aggregate offline and use the aggr destroy command

B. Take the aggregate offline and use the destroy -f command

C. Ensure the plex is online and use the aggr destroy plexname command.

D. Ensure the plex is offline and use the aggr destroy plexname command.

Correct Answer: DSection: High AvailabilityExplanation


aggr destroy { aggrname | plexname } [ -f ]

Destroys the aggregate named aggrname, or the plex named plexname. Note that if the specified aggregate istied to a traditional volume, then the traditional volume itself is destroyed as well.

If an aggregate is specified, all plexes in the aggregate are destroyed. The named aggregate must also notcontain any flexible volumes, regardless of their mount state (online, restricted, or offline). If a plex is specified,the plex is destroyed, leaving an unmirrored aggregate or traditional volume containing the remaining plex.Before destroying the aggregate, traditional volume or plex, the user is prompted to confirm the operation. The -f flag can be used to destroy an aggregate, traditional volume or plex without prompting the user.

The disks originally in the destroyed object become spare disks. Only offline aggregates, traditional volumesand plexes can be destroyed.

QUESTION 63When replicating data between 32-bit and 64-bit aggregates, which two are allowed? (choose two)

A. NDMPcopyB. QSMC. vol copyD. VSM

Correct Answer: ABSection: Data ProtectionExplanation

Explanation/Reference:http://www.netapp.com/us/system/pdf-reader.aspx?m=tr-3786.pdf&cc=ushttp://wafl.co.uk/ndmpcopy/

Because volume SnapMirror works at the block level, the source and destination must both be FlexVol volumesin the same aggregate type. The source and destination of a volume SnapMirror relationship must either bothbe FlexVol volumes in 32-bit aggregates or both be FlexVol volumes in 64-bit aggregates. Therefore youcannot create a volume SnapMirror relationship from a FlexVol volume in a 32-bit aggregate to a FlexVolvolume in a 64-bit aggregate or vice versa.

QUESTION 64How do you migrate LUNs under volumes from 32-bit to 64-bit?

A. lrep

B. ndmpcopy

C. rsync

D. snapvault



http://wafl.co.uk/ndmpcopy/

Think of ndmpcopy as a sort of ftp for SAN. You can use it to copy files from one volume to another. Becausethe file is read from one volume and written to another, the constraints of volume types are not an issue.

QUESTION 65Which two are Data ONTAP commands for displaying performance information? (Choose two.)

A. nfsstat

B. perfstat

C. sio_ntap_soll

D. sysstat


Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_sysstat.1.htmlhttps://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_nfsstat.1.html

nfsstat and sysstat are OnTap commands used for performance information.

Perfstat is a GUI performance tool, not an OnTap command.

sio_ntap_soll is not an OnTap command.

QUESTION 66To collect per client NFS statistics on a storage system, the option nfs.per_client_stats.enable mustbe set on.

A. TrueB. False


Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_options.1.html

nfs.per_client_stats.enableEnables/disables the collection and display of perclient NFS statistics, as described in na_nfsstat(1). Validvalues for this option are on or off. The default value for this option is off.

QUESTION 67In a Fibre Channel configuration, the host's HBA is referred to as the ___________, and the storage system'sHBA is referred to as the __________.

A. initiator, target.B. primary, secondary.C. secondary, primary.D. target, initiator.


Explanation/Reference:http://en.wikipedia.org/wiki/SCSI_initiator_and_target

QUESTION 68Which set of commands should be used for troubleshooting Ethernet connectivity problems from the storagesystem console?

A. ifstat, netdiag

B. perfstat, tracert

C. sysconfig -cr, sysstat

D. disk shm_stats, sysstat


Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_ifstat.1.htmlhttp://backdrift.org/man/netapp/man1/na_netdiag.1.html

ifstat - display device-level statistics for network interfaces netdiag - perform network diagnostics

QUESTION 69Physical Reallocation of a SnapMirror source volume increases the amount of data to transfer for the nextSnapMirror update.

A. TrueB. False


Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_reallocate.1.html

Using the -p option may reduce the extra storage requirements in a flexible volume when reallocation is run ona volume with snapshots. It may also reduce the amount of data that needs to be transmitted by SnapMirror onits next update after reallocation is performed on a SnapMirror source volume.

QUESTION 70A snapshot is a frozen, read-only image of the entire Data ONTAP active file system that reflects the state ofthe ____________ at the time the snapshot was created.

A. qtreesB. volumeC. directoryD. storage system


Explanation/Reference:http://backdrift.org/man/netapp/man1/na_snap.1.html

Snapshots can be made of volumes or aggregates; most commonly the former. The question refers to a filesystem, or more specifically a volume.

You cannot snapshot directories or qtrees alone.

QUESTION 71To restore a qtree protected with SnapVault from the secondary storage system to the primary storage system,you can ______________. (Choose two.)

A. restore to a non existing qtree with DOT 7.2B. add the new qtree to the primary storage system with DOT 7.2C. overwrite the existing qtree on the primary storage system with DOT 7.3D. delete the existing qtree from the secondary storage system with DOT 7.3

Correct Answer: ACSection: Data ProtectionExplanation

Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-DB31E1F4-60A8-4F34-A1C4- 8F79754E4DE2.html

You use the snapvault restore command to restore a backed-up qtree saved to the secondary system. Startingwith Data ONTAP 7.3, you can restore the data to an existing qtree on the primary system using baselinerestore or incremental restore.

QUESTION 72The snapvault update command is only available on the secondary system.

A. TrueB. False


Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_snapvault.1.html

snapvault update [ -k n ] [ -s snapname ] [ -w ] sec_ondary_qtree

Available on the secondary only. Immediately starts an update of the specified qtree on the secondary.

QUESTION 73The OSSV agent on the primary system listens to TCP port 10000 for all SnapVault communications.

A. TrueB. False


Explanation/Reference:https://communities.netapp.com/servlet/JiveServlet/previewBody/4791-102-2-13466/tr-3466.pdf

Pg 17

OSSV hosts listen for communications from NDMP manager applications on port 10000 by default.

QUESTION 74Which three statements are true about SnapLock volumes? (Choose three.)

A. SnapMirror supports SnapLock volumes.B. There are two types of SnapLock volumes.C. SnapLock volumes support per-file retention periods.D. In Data ONTAP 7.2.5.1 and later, SnapLock Compliance volumes are not supported on the V- Series

controller with NetApp Storage.

Correct Answer: ABCSection: Data ProtectionExplanation

Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196889/html/GUID-8ACE3CAB-D338-4AFC-A530-0D0FEC3B9F94.html

The snaplock command manages compliance related functionality on the system. A volume created using thevol command (see na_vol(1)) is a snaplock volume when either the enterprise or compliance option is chosen.Enterprise and compliance SnapLock volumes allow different levels of security assurance.

https://library.netapp.com/ecmdocs/ECMP1196889/html/GUID-D4533C47-441D-41AB-A8A2-272A2BFC431C.html

SnapLock operates fundamentally at the file level.

QUESTION 75A volume SnapMirror relationship is allowed between two SnapLock Compliance volumes if the destinationvolume has unexpired WORM files.

A. TrueB. False


Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196889/html/GUID-4B97B80F-D208-4154-95BF-D7FF9F5BEE11.html

A volume SnapMirror relationship is not allowed between two SnapLock Compliance volumes if the destinationvolume has unexpired files.

QUESTION 76When Data ONTAP creates a weekly, nightly, or hourly snapshot, the value of n (as shown by the snap listcommand) is adjusted for all the weekly.n, nightly.n, or hourly.n Snapshot copies. The higher the value of n, the_________ the snapshot.

A. olderB. newerC. more importantD. least important


Explanation/Reference:...where n is an integer. The most recent weekly Snapshot copy is weekly.0, weekly.1 is the next most recentweekly Snapshot copy, and so on.

https://library.netapp.com/ecmdocs/ECMP1113957/html/GUID-1D3B0C7D-D94E-43A3-9091-5E76003E16EB.html

QUESTION 77Which three are pre-requisites for using SnapRestore? (Choose three.)

A. The volume to be reverted must be offline.B. The volume to be reverted must not be a SnapMirror destination.C. You must enter the SnapRestore license code before you can use it.D. Snapshot copies must exist on the storage system so that you can select a snapshot for the reversion.


Explanation/Reference:You must meet certain prerequisites before using SnapRestore:

- SnapRestore must be licensed on your storage system.- There must be at least one Snapshot copy on the system that you can select to revert.- The volume to be reverted must be online.- The volume to be reverted must not be in use for data replication.

http://hd.kvsconsulting.us/netappdoc/733docs/html/ontap/onlinebk/GUID-A14081A3-9270-47EE-A1C1-EC52D3ABDBD0.html

QUESTION 78Which objects can be restored by a single SnapRestore command? (Choose three)

A. fileB. LUNC. qtreeD. volumeE. directory

Correct Answer: ABDSection: Data ProtectionExplanation

Explanation/Reference:SnapRestore on a file and volume: https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-1E99ACB2-5C69-4FFC-B115-9D2951D109E9.html

SnapRestore on a LUN: https://library.netapp.com/ecmdocs/ECMP1196995/html/GUID-577EDC41-FEA0-4987-8F04-55E736962FD1.html

Hint: snaprestore at the volume level or at the file level. LUNs are effectively files.

QUESTION 79Which option of the snap restore command allows you to specify a different directory, as long as the directoryalready exists?

A. snap restore -c

B. snap restore -d

C. snap restore -r

D. snap restore -s

Correct Answer: CSection: Data ProtectionExplanation

Explanation/Reference:snap restore [ -A | -V ] [ -f ] [ -t vol | file ] [ -s snapshot_name ][ -r restore_as_path ] vol_name | restore_from_path

See more at: http://wafl.co.uk/snap/#sthash.nJiEwxGV.dpuf

QUESTION 80A volume is SnapMirrored hourly. You revert the volume using a snapshot that was created two days ago.Which command continues the relationship?

A. snapmirror initialize

B. snapmirror quiesce

C. snapmirror resume

D. snapmirror resync

E. snapmirror update


Explanation/Reference:You can use the snapmirror resync command to reestablish the connection between the source and thedestination. This command is applied after the SnapMirror relationship between the source and destination isbroken.

https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-5D846D24-0903-4982-A429-71AE5C0F9033.html

QUESTION 81In a volume SnapMirror relationship, the source and destination volumes must be the same size.

A. TrueB. False


Explanation/Reference:In an active volume SnapMirror relationship, the size of the source and destination file systems is identical.However, the size of the destination volume can be larger than or equal to the size of the source volume. Thesize of the file systems must be identical to allow the source to be restored from the destination.

https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-DE5EE692-81CF-4569-A703-00B4E283CE99.html

QUESTION 82Which two statements apply to the fs_size_fixed volume option? (Choose two.)

A. The default setting is on.B. This option is automatically set to be on when a volume becomes a SnapMirrored volume.C. This option turns to off after the snapmirror break command is issued for the relationship.D. This option causes the SnapMirror destination volume to remain the same size and not grow or shrink when

a SnapMirrored volume relationship is broken.

Correct Answer: BDSection: OnTap AdministrationExplanation

Explanation/Reference:This option causes the file system to remain the same size and not grow or shrink when a SnapMirrored volumerelationship is broken, or when a vol add is performed on it. This option is automatically set to be on when avolume becomes a SnapMirrored volume. It will remain on after the snapmirror break command is issued forthe volume. This allows a volume to be SnapMirrored back to the source without needing to add disks to thesource volume. If the volume size is larger than the file system size, turning off this option will force the filesystem to grow to the size of the volume. The default setting is off.

http://wafl.co.uk/vol-2/#sthash.DbEHR4YS.dpuf

QUESTION 83Which three statements apply to the SnapMirror visibility_interval argument? (Choose three.)

A. The default interval value is five minutes.B. The smallest interval value supported is 30 seconds.C. This variable controls the view of the data on the destination system.D. By setting a value, you specify the amount of time before an automatic snapshot is created on the source

volume that is synchronously mirrored.


Explanation/Reference:http://www.netapp.com/us/media/tr-3326.pdfhttp://backdrift.org/man/netapp/man5/na_snapmirror.conf.5.htmlhttp://hd.kvsconsulting.us/netappdoc/733docs/html/ontap/onlinebk/GUID-47724B21-7C7E-4AC9-A497-9505B42C27AF.html

With SnapMirror Sync and SnapMirror Semi-Sync, changes to the source volume do not show upimmediately on the destination volume, even though the changes have been replicated. The changesare first shown after the source system creates an automatic Snapshot copy of the source volume.Snapshot copies created on the source volume are immediately propagated to the destination volume. Theautomatic Snapshot copies are created every three minutes by default.

To change the interval for automatic Snapshot copies, change the visibility_interval in thesnapmirror.conf file; however, performance can degrade if set to a smaller interval because frequentSnapshot copies cause additional processing such as cache consistency checking on the destination system.There is also a disadvantage in setting this to a large value. When the connection between the systems has anoutage and SnapMirror goes into asynchronous mode, SnapMirror uses the last common Snapshot copy to

transition into synchronous mode. This means that all data from the last valid common Snapshot copy will needto be replicated from the source to the destination storage system. If the visibility_interval is set to alarge value, a large amount of data might have to be transferred and it might take longer time for SnapMirror totransition into synchronous mode. For these reasons, keep the default value of three minutes.

visibility_intervalThe value for this argument is a number optionally followed by the suffixes: s (seconds), m (minutes) or h(hours). If a suffix is not specified, value is interpreted as seconds. This argument controls the amount of timebefore an automatic snapshot is created on the source volume that is synchronously mirrored. The value is thenumber of seconds between automatically created snapshots. The default value is 3 minutes. A small numberhere can negatively affect the performance of the mirror. This argument is ignored for asynchronous mirrors.

visibility_interval={xs | xm | xh}Determines the amount of time before an automatic Snapshot copy is created on the source volume that isbeing replicated using synchronous or semi-synchronous SnapMirror. When replicating synchronously or semi-synchronously, using SnapMirror, changes to the source volume do not show immediately on the destinationvolume, even though the changes have been replicated. The changes are shown only after the source systemtakes an automatic Snapshot copy of the source volume. This event occurs every three minutes by default. Youcan change the interval for automatic Snapshot copies, but performance can degrade if you set smallerintervals because Snapshot copies are taken more often. The smallest interval you can set is 30 seconds.Note: The s, m, and h suffixes specify seconds, minutes, and hours, respectively.

QUESTION 84SnapMirror will automatically try to restart a transfer after ___________.

A. an initial transfer is interruptedB. a manual update is interruptedC. a transfer interrupted by rebootD. a scheduled incremental update is interrupted


Explanation/Reference:If a scheduled transfer fails (for example, due to network failure), SnapMirror automatically retries the transferthe next minute.

http://hd.kvsconsulting.us/netappdoc/733docs/html/ontap/onlinebk/GUID-511EAA86-069A-42E8-B62E-3168C7F0A83D.html

QUESTION 85Which option will allow a storage system to SnapMirror from this source system?

A. snapmirror.access

B. snapmirror.destination

C. options snapmirror.allow host =

D. options snapmirror.access host =


Explanation/Reference:The snapmirror.access option is the preferred method for controlling snapmirror access on a snapmirrorsource filer.

http://www.wafl.co.uk/snapmirrorallow/#sthash.4Cb8IqqN.dpuf

QUESTION 86Which three FAS deduplication features exist in ONTAP 8.0 7-Mode?

A. The deduplication fingerprint and change logs were moved to the root volume /etc/dedup directory.B. After breaking the deduplication volume destination mirror, the deduplication (a-sis) process continues

uninterrupted.C. Qtree SnapMirror is supported on the destination for deduplication by enabling on the source, destination, or

both systems.D. The fingerprint database and the change logs that the deduplication process uses are located outside the

volume, in the aggregate.E. The deduplication schedule is not tied to a Qtree SnapMirror update, and can be configured just like the

deduplication schedule for any volume.

Correct Answer: CDESection: Data ProtectionExplanation

Explanation/Reference:NetApp also recommends that if deduplication is used on the source volume, then it should also be used on thedestination volume. However, you are not restricted using deduplication on the source volume only.

The deduplication schedule is not tied to the qtree SnapMirror update. In other words, the deduplication processdoes not automatically start at the completion of the qtree SnapMirror transfer.

The fingerprint database and the change log files that are used in the deduplication process are located outsideof the volume in the aggregate and are therefore not captured in Snapshot copies

http://www.netapp.com/us/media/tr-3505.pdf

QUESTION 87To manage SnapVault relationships with an NDMP management application, you must specify a:

A. directory pathB. volume and qtreeC. SnapVault licenseD. username and password


Explanation/Reference:Add a new backup user to the Backup Operators useradmin group list. Enter the following command:

useradmin user add backupuser -g "Backup Operators"

Generate an NDMP password for the new user. Enter the following command:

ndmpd password backupuser

The NDMP password is used to authenticate the NetBackup media server to the storage system. Thispassword is required for setup on the NetBackup management station.

https://library.netapp.com/ecmdocs/ECMM1278284/html/onlinebk/5snapv37.htm

QUESTION 88The qtree specified for ________ must not exist on the secondary system before you run the ________command.

A. pri_qtree_path, snapvault start

B. sec_qtree_path, snapvault start

C. pri_qtree_path, snapvault initialize

D. sec_qtree_path, snapvault initialize


Explanation/Reference:snapvault initialize is not a valid command

http://backdrift.org/man/netapp/man1/na_snapvault.1.html

snapvault start -r [options] -S [prim_system:]prim_qtree_path [sec_system:]sec_qtree_path

pri_qtree_path is not a valid command

http://hd.kvsconsulting.us/netappdoc/801docs/html/ontap/onlinebk/GUID-DB31E1F4-60A8-4F34-A1C4-8F79754E4DE2.html

QUESTION 89Which command displays the disk ownership for both CPU modules in a FAS2020 system?

A. disk own -s

B. disk show -v

C. vol status -r

D. disk display -r


Explanation/Reference:disk show [ -o <ownername> | -s <sysid> | -n | -v | -a]

Used to display information about the ownership of the disks. Available only on systems with software-baseddisk ownership. -o lists all disks owned by the filer with the name <ownername> -s lists all disks owned bythe filer with the serial number <sysid> -n lists all unassigned disks. -v lists all disks. -a lists all assigneddisks.

QUESTION 90To remove a cluster setup, you must perform these steps:

1. Type cf disable.2. Unlicense cluster.3. Remove partner entries for network interfaces from the /etc/rc file.4. Halt and make sure the partner-sysid is blank.5. Power down and remove the cluster interconnect card.6. Perform steps 1-5 above on the partner node.

A. TrueB. False

Correct Answer: ASection: High AvailabilityExplanation

Explanation/Reference:For a detailed breakdown of the procedure see the following KB

https://kb.netapp.com/support/index?page=content&id=1011576

QUESTION 91You are troubleshooting a clustered failover problem at a customer site. The customer explains that bothstorage systems were NFS mounted onto the Solaris host. While in takeover mode, you attempt to create a fileon the NFS mount point for the inaccessible system, but you get the following error:

NFS server filer2 not responding still trying.

When not in takeover mode, both storage systems operate normally and you do not get the error. You performa "cf giveback" and you can now create a file over NFS on both systems. What should you do first to resolvethis issue?

A. Replace the NIC adapter.B. Submit a new bug report.C. Use the cluster-config-checker.cgi to identify the problem and corrective action.

D. Replace the cluster interconnect card and run diagnostics "all" to ensure proper system operation.

Correct Answer: CSection: High AvailabilityExplanation

Explanation/Reference:This question implies that there is an issue with the clustering of the two controllers. Since this is the case youwill want to run the cluster configuration checker to identify and resolve any issues.

https://library.netapp.com/ecmdocs/ECMM1278349/html/upgrade/upgrading/concept/c_oc_upg_b4_active2.html

QUESTION 92Each storage system in a cluster must have network access to the __________.

A. InternetB. cluster partnerC. same administrationD. same collection of subnets


Explanation/Reference:All the network ports should be assigned correct port roles, and all the network ports should be in the samesubnet.

https://library.netapp.com/ecm/ecm_download_file/ECMP1196907

QUESTION 93In an active/active configuration in takeover mode, the surviving controller interfaces will reflect the identity ofthe ___________.

A. local interfaces onlyB. failed partner interfaces onlyC. local and failed partner interfacesD. interfaces as defined in the /etc/rc file


Explanation/Reference:In takeover mode, this network interface assumes the identity of the network interface on the partner

http://www.wafl.co.uk/tag/ifconfig/#sthash.3rsjaDZD.dpuf

For the partner interface configuration to be persistent across reboots, you must include the ifconfig commandin the /etc/rc file

http://hd.kvsconsulting.us/netappdoc/801docs/html/ontap/nag/GUID-525FCF4E-109D-4E6F-9256-C6E56438CA9A.html

QUESTION 94For aggregates or traditional volume SyncMirror to work correctly, the configuration of each plex should beidentical with regard to ____________.

A. NVRAMB. Mirrored Snapshot copiesC. RAID groups and disk sizesD. NDMP and Snapshot copies


Explanation/Reference:SyncMirror is essentially a RAID-1 mirror; hence the name. The best practice is to mirror storage of equalperformance; i.e. identical RAID groups and disk sizes (number of spindles, IOPS). If you were to mirror twostorage devices of different performance, the slower device would be the limiting factor.

QUESTION 95What happens when two aggregates are rejoined?

A. It is not possible to rejoin aggregates.B. Data ONTAP will always retain data from the newest aggregate.C. Both aggregates revert to the last common snapshot before the split.D. You will have a large new aggregate containing all volumes from both aggregates.E. One of the aggregates will be overwritten and you will lose any data changed on it after the split.

Correct Answer: ESection: High AvailabilityExplanation


When you rejoin split aggregates, Data ONTAP mirrors the data from one aggregate to the other and destroysdata that existed on that aggregate before the rejoin.

https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-B9CB3DA8-E1AF-4BAC-A85B-64C009010F4A.html

QUESTION 96A mirrored volume has a failed disk, but there are no available spares in the pool from which the degraded plexwas built. Data ONTAP will __________.

A. halt all operations to volumes in that poolB. choose spare disks to reconstruct from the opposite poolC. warn you that there are no available spares from the proper poolD. "halt" after 24 hours if spare disks are not added to the proper pool


Explanation/Reference:Both ‘warn you that there are no available spares from the proper pool’ and ‘halt after 24 hours if spare disk arenot added to the proper pool’ are correct answers. However, since Data ONTAP alerts you first, 'warn you thatthere are no available spares' is the best answer.

https://library.netapp.com/ecm/ecm_download_file/ECMP1196912

QUESTION 97The required hardware to add SyncMirror to an existing system would be ____________.

A. disk shelves and cluster interconnectB. disk shelves and termination switchesC. disk shelves, Ethernet adapters, and cablingD. disk shelves, Fibre Channel adapters, and cabling



QUESTION 98Which two are true when creating a SyncMirror volume? (Choose two.)

A. The disks selected for Plex 0 and Plex 1 must come from the same disk shelf.

B. The disks selected for Plex 0 and Plex 1 must come from the same disk pools.C. The number of disks added must be an even number and equally divided between the two plexes.D. The disks are selected first on the basis of equivalent bytes per sector (bps) size, then on the basis of the

size of the disk. If there is no equivalent-sized disk, Data ONTAP takes a larger capacity disk and right-sizesit.

Correct Answer: CDSection: High AvailabilityExplanation

Explanation/Reference:The rules for the selection of disks or array LUNs, for using as mirrored aggregates, are as follows:

Disks or array LUNs selected for each plex must be in different pools.The same number of disks or array LUNs must be in both the plexes.Disks are selected first on the basis of equivalent bytes per sector (bps) size, then on the basis of the size ofthe disk.If there is no equivalent-sized disk, Data ONTAP uses a larger-capacity disk, and limits the size to make itidentically sized.Data ONTAP names the plexes of the mirrored aggregate.

https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-F5F241AF-50C0-4FF3-8C01-96958581C4D9.html

QUESTION 99After issuing the aggr split aggr0/plex0 aggrNew command ____________.

A. there is a new plex called aggrNew

B. there are two new plexes, plex0 and plexNew

C. there is a new mirrored aggregate called aggrNew

D. there are two unmirrored aggregates, aggr0 and aggrNew

E. flexible volumes are evenly split between aggr0 and aggrNew



aggr split aggrname/plexname new_aggrname

Removes plexname from a mirrored aggregate and creates a new unmirrored aggregate namednew_aggrname that contains the plex. The original mirrored aggregate becomes unmirrored. The plex to besplit from the original aggregate must be functional (not partial), but it could be inactive, resyncing, or out-of-date. Aggr split can therefore be used to gain access to a plex that is not up to date with respect to its partnerplex, if its partner plex is currently failed.

If the aggregate in which plexname resides is embedded in a traditional volume, aggr split behaves identicallyto vol split. The new aggregate is embedded in a new traditional volume of the same name.

The aggregate in which plexname resides must contain exactly one flexible volume, aggr split will by defaultrename the flexible volume image in the split-off plex to be the same as the new aggregate.

If the original aggregate is restricted at the time of the split, the resulting aggregate will also be restricted. If therestricted aggregate is hosting flexible volumes, they are not renamed at the time of the split. Flexible volumeswill be renamed later, when the name conflict is detected while bringing an aggregate online. Flexible volumesin the aggregate that is brought online first keep their names. That aggregate can be either the original

aggregate, or the aggregate resulting from the split. When the other aggregate is brought online later, flexiblevolumes in that aggregate will be renamed.

If the plex of an aggregate embedded within a traditional volume is offline at the time of the split, the resultingaggregate will be offline. When splitting a plex from an aggregate that hosts flexible volumes, if that plex isoffline, but the aggregate is online, the resulting aggregate will come online, and its flexible volumes will berenamed. It is not allowed to split a plex from an offline aggregate.

A split mirror can be joined back together via the -v option to aggr mirror.

QUESTION 100You can avoid data corruption when you issue the cf forcetakeover -d command if the remote node is___________.

A. in a giveback modeB. fenced off manuallyC. powered on and accessibleD. powered off and inaccessible


Explanation/Reference:The operator must ensure that the partner filer does not become operational at any time while a filer is in atakeover mode initiated by the use of this command

http://backdrift.org/man/netapp/man1/na_cf.1.html

QUESTION 101You have connected all cables and disk shelves in a fabric-attached MetroCluster. Which command wouldverify that disks are connected and have dual paths?

A. disk show

B. sysconfig -p

C. vol status -r

D. storage show disk -p


Explanation/Reference:storage show disk [ -a | -p | -T | -x ] [ name ]

-p The -p option displays the primary and secondary paths to a disk device. Disk devices can be connectedthrough the A-port or the B-port. If the storage system can access both ports, one port is used as the primarypath and the other port is used as a secondary (backup) path.

http://backdrift.org/man/netapp/man1/na_storage.1.html

QUESTION 102In a fabric-attached MetroCluster, a "site failure" is described as a __________.

A. failure of the Inter-Switch-Links (ISL)B. failure of the interconnect cable

C. complete failure of the primary controller and disk shelvesD. malfunction of the Fibre Channel adapter on the cluster node


Explanation/Reference:http://argoat.net/Blog/?p=1466

QUESTION 103For OSSV sources, the qtree is the basic unit of SnapVault backups.

A. TrueB. False


Explanation/Reference:https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-06C70D3B-9A06-4D20-B140-EB147B941BDA.html

The data structures that are backed up and restored through SnapVault depend on the primary system.

On systems running Data ONTAP, the qtree is the basic unit of SnapVault backup and restore.

SnapVault backs up specified qtrees on the primary system to associated qtrees on the SnapVaultsecondary system. If necessary, data is restored from the secondary qtrees back to their associated primaryqtrees.

On open systems storage platforms, the directory is the basic unit of SnapVault backup. SnapVaultbacks up specified directories from the native system to specified qtrees in the SnapVault secondary system.

If necessary SnapVault can restore an entire directory or a specified file to the open systems platform.

The destination system uses a slightly more disk space and directories than the source system.


network appliance ns0-155 questions & answers · 2019-12-01 · network appliance ns0-155...

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