veritas_netbackup

8/7/2019 Veritas_Netbackup

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VeritasVeritas

NetbackupNetbackup1. Introduction &1. Introduction & NetbackupNetbackup Architecture.Architecture.2. Installation of Master / Media / Clients software,2. Installation of Master / Media / Clients software,

type of backups and archivestype of backups and archives

3. Demons and services3. Demons and services4. Backup Hard ware devices (Library and Tapes)4. Backup Hard ware devices (Library and Tapes)5. Configuration of Policies5. Configuration of Policies6. Configuration of Storage units / Volume pools6. Configuration of Storage units / Volume pools7.7. NetbackupNetbackup Error Codes and Trouble shootingError Codes and Trouble shooting8. Important8. Important NetbackupNetbackup commandscommands9. Restoration / Recovery9. Restoration / Recovery

10. Health Check &10. Health Check & IntializingIntializing scheduled backupscheduled backup& Daily job monitoring& Daily job monitoring


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Information StorageInformation Storage

Importance of information

Data, information and storage

Categories of data Storage architectures and their

evolution


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Categories of DataCategories of Data

Data can becategorized aseither structured or

unstructured data Over 80% of

enterpriseinformation isunstructured

Rows and Columns

Contracts

Images

Manuals

X-Rays

Instant Messages

Forms

E-Mail Attachments

Check

Documents

PDFs

Web Pages

Audio Video

Invoices

Rich Media

Structured (20%)

Unstructured (80%)


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InformationInformation

What do individuals/businesses dowith the data they collect?

They turn it intoinformation

Information is theintelligence and knowledgederived from data

Businesses analyzeraw data in order to

identify meaningfultrends

For example:

Buying habits andpatterns of customers

Health history of

Users of

Information

Centralized information

storage and processing

Uploading

information

Accessing

information

Wired Wireless WiredWireless

Network Network

Demand for more

Information

Creators of

information

Virtuous cycle of information


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StorageStorage

Data created by individuals/businesses must bestored for further processing

Type of storage used is based on the type of dataand the rate at which it is created and used

Examples:

Individuals: Digital camera, Cell phone, DVDs,Hard disk

Businesses: Hard disk, external disk arrays,tape library

Storage model: An evolution

Centralized: mainframe computers

Decentralized: Client server model

Centralized: Storage Networking


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Need for Storage & Growth ofNeed for Storage & Growth ofDataData

The Sarbanes-Oxley Act states that all businessrecords, including electronic records andelectronic messages, must be saved for "not lessthan five years." The consequences for non-

compliance are fines, imprisonment, or both. ITdepartments are increasingly faced with thechallenge of creating and maintaining a corporaterecords archive in a cost-effective fashion thatsatisfies the requirements put forth by the

legislation.


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Introduction toIntroduction to NetbackupNetbackup

Veritas Product

Symantec took over veritas

70 to 80% of companies world wideuse

Versions->5.1 to 6.5.37,7.01

GUI and CLI


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4 Tier Architecture of4 Tier Architecture ofNetbackupNetbackup

1st tier Netbackup Client(MLAs)

2nd tier Media Server(Cabinet

Ministers) 3rd tier Master Server(CM)

4th tier Global Data Manager(PM)

Hardware compatibility list:-

http://seer.entsupport.symantec.co

m/docs/336875.htm


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Netbackup ClientNetbackup Client

During the backup or archive,theclient system generates the backup

as a data stream and sends it acrossthe network to the media server.

Therefore, our target is the clientwhose data needs to be backed up or

restored

MS SQL Agent comes free withNetbackup client


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Media ServerMedia Server

To increase performance byproviding additional processingability and better distribution ofworkload (Load balancing).

Note: Tape libraries are alwaysattached to the media server only


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Master ServerMaster Server

Master Server is netbackups centralbrain, providing centralisedoperations and management to anymedia server and clients


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Global Data ManagerGlobal Data Manager

GDM organises the span geographicsand provides the ability to performbackup and recovery operations fromvarious locations.


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ARCHIVE BITARCHIVE BIT

The archive bit is a binary bit. Assuch, it is either 1 or 0, alsofrequently called set(1) and clearorreset(0). It represents whether thefile has (1) or has not (0) changedsince the last backup.


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Types of BackupTypes of Backup

Full (Archive bit is reset)

Differential Incremental (Changes sincethe latest backup, archive bit is reset)

[Incremental]

Cumulative Incremental(Changes sincethe last full backup)

Archive Backup (Delete data from sourceafter backup leaving behind the metadata,eg:Oracle archive log backup)

User Initiated Backup (Backup window is

24x7)


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VaultVault

Vault job initiates duplicate backupjobs.

One for onsite and another for offsite Ejects the filled tapes from the tape

library

Automatically sends email to Ironmount and backup admins statingthe scratch set tape details andtapes which need to be reloaded

License is ver costl .


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NetBackup CatalogNetBackup Catalog NetBackup catalogs are internal databases that

contain information about NetBackup backupsand configuration. Backup information includesrecords of the files that have been backed upand the media on which the files are stored. Thecatalogs also contain information about themedia and storage devices.

NetBackup requires the catalog information inorder to restore backups so it is extremelyimportant to configure a catalog backup before

using NetBackup for regular client backups, andto schedule the catalog backups to occur on aregular basis thereafter. Without regular catalogbackups, you risk losing your regular backups ifthere is a problem with the disk that contains thecatalogs.


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Parts of the CatalogParts of the Catalog

The NetBackup catalog resides on the disk of theNetBackup master server. The catalog consists of thefollowing parts:

Image Database: The image database contains information

about what has been backed up. It is by far the largest partof the catalog. [c:\prog files\veritas\netbackup\db\] NetBackup Relational Database: This includes the media

and volume data describing media usage and volumeinformation which is used during the backups. [c:\progfiles\veritas\volmgr\database]

NetBackup configuration files: Policy, schedule and otherflat files used by NetBackup.[ c:\progfiles\veritas\netbackup\var\]


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Netbackup ManagementNetbackup Management

Host Properties

Master Server

Media Server Clients ->Double click to check

network connectivity


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Media and DeviceMedia and DeviceManagementManagement

Device Monitor -> Lists Tape drivesand Robots

Media->Robot Type->TLD (In tapelib) or none (Offsite)

Media->Volume Pools->Default 4Pools


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NOTENOTE

Media ID:- is a 6 digit alphanumeric

& usually a media has a barcode. Media>Robots (RC)>Robot

Inventory>Update Volume config->Start


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Frozen,Suspend,Import,DuplicateFrozen,Suspend,Import,Duplicate

Frozen tape:-Media Manager will auto freeze amedia if the backup cant use it after 3 attempts.Incase of media errors 83,84,86,we freeze themedia. Unfreeze later.

Suspend:-It means that Netbackup won't writeany new data to that tape, until all data on itexpires. It will then be available for re-use.

Expire:-Data on media will be removed but theimage (index) will remain until the tape isoverwritten

Duplicate:-Medias sent offsite.Backup done usingeither vault/duplicate backup option.

Import:-catalog db(index/image) from tape whenserver crashes and needs restoration


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Volume PoolVolume Pool

Definition:-Volume Pool is a set of volumes from which netbackupcan draw or take volumes when performing backup Group of tapes -Volume/Cartridge/media/tape A volume pool identifies a logical set of volumes by type of

usage. Associating volumes with a volume pool protectsthem from access by unauthorized users, groups, orapplications.

With the exception of the volume pools that are automaticallycreated by NetBackup, you must create a volume pool before youcan add volumes to a volume pool. The following volume pools areautomatically created (see Volume Pools List):

NetBackup, created by Media Manager, for NetBackup use. DataStore, created by NetBackup, for DataStore use. CatalogBackup, created by NetBackup, for NetBackup catalog

backups. During initial configuration, it is easiest to create all of your

volume pools first. Then as you add volumes, you can assignthem to volume pools.

It is also possible to configure a scratch pool from which MediaManager can transfer volumes, when a volume pool has novolumes available.

If the volume pool will contain WORM media, see Using WORMVolume Pools to Manage WORM Media for more information.


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Default Volume PoolsDefault Volume Pools

None -> Cleaning Tapes are present

Netbackup ->Brand new tapes go tonetbackup volume pool after inventory

DataStore Catalog Backup

Volume Pool which need to be created

Scratch Pool :-Needs to be created so thatexpired tape medias which can be reusedcome to the scratch pool.


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Volume GroupsVolume Groups Volume Groups is a physical location for a media. It manages a group of tapes for purpose of admin actions that

allows movement of tapes from slots to drive and vice versa. Rules for Assigning Volume Groups The following are the rules for assigning volume groups: All volumes in a group must be the same media type. However, a

media type and its corresponding cleaning media type are allowedin the same volume group (for example, DLT and DLT_CLN).

All volumes in a robotic library mustbelong to a volume group.You cannot add volumes to a robotic library without specifying agroup or having Media Manager generate a name for the group.

The only way to clear a volume group name is to move thevolume to standalone and not specify a volume group.

More than one volume group can share the same location. Forexample, a robotic library can contain volumes from more than

one volume group and you can have more than one standalonevolume group. All volumes in a group must be in the same robotic library or be

standalone. That is, Media Manager will not let you add a group(or part of a group) to a robotic library, if it already exists inanother robotic library.


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Types of Tape Drives


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What is a Tape?What is a Tape? Tape began as the primary storage medium for computers

in the 1950s. At that time, large mainframe computersdominated the information systems industry.

Data storage and backup for these mainframes was onexpensive, reel-to-reel tape systems using half-inch

magnetic tape. Data was recorded in parallel tracks using a linearserpentine recording technology in which the data trackswere written in alternating bands from the beginning of thetape to the end and back again.

Throughout the 60s and 70s these open-reel systemsevolved by increasing the number of tracks, increasing bit

density, and increasing tape speed.


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Types Of Tape DrivesTypes Of Tape Drives

Digital Linear Tape (DLT)

Super Digital Linear Tape (SDLT)

Linear Tape Open (LTO)


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Digital Linear Tape (DLT)Digital Linear Tape (DLT) QuantumQuantum

DLT drives use half-inch wide metal particle tapes - 60% widerthan 8mm tape and the widest tape available - onto which data isrecorded in a serpentine pattern on parallel tracks grouped intopairs.

Each data track goes the entire length of the tape. When data isrecorded, the first set of tracks is recorded on the whole length of

the tape. When the end of the tape is reached, the heads arerepositioned to record a new set of tracks, and the tape is againrecorded on its whole length, this time in the opposite direction.

The process continues, back and forth, until the tape is full.Current drives record either 128 or 208 tracks.

The higher density is achieved by angling the data pattern onadjacent tracks using a technique called Symmetric Phase

Recording (SPR). SPR's herringbone pattern eliminates the need for guard bands,thereby allowing greater track density.


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Digital Linear Tape (DLT)Digital Linear Tape (DLT)


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SDLTSDLT Super DLT tape technology is the next generation DLT tape

technology platform, the current industry standard for datastorage

Super DLT tape technology is based on Laser Guided Magnetic

Recording (LGMR) technology, which uses a uniquecombination of the best optical and magnetic technologies todramatically increase the number of recording tracks on thedata-bearing surface of the media

The storage capacity of a SDLT-220 drive is 110GB Native and

220GB Compressed. The storage capacity of a SDLT-320 driveis 160GB Native and 320GB Compressed.


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LTO TapeLTO Tape HP IBMHP IBMSEAGATESEAGATE

LTO Technology, or Linear Tape-OpenTechnology, combines the advantages of linearmulti-channel bi-directional tape formats incommon usage today with enhancements in theareas of timing based servo, hardware datacompression, optimized track layouts and highefficiency error correction code to maximizecapacity and performance.

HP, IBM and Seagate each provided expertknowledge of customer needs and

complementary technology that provided fordelivery of a best-of-breed technology andpromotes a strong foundation for datainterchange. It is their intent that othercompanies can participate in this tape industryopportunity through the open licensing process


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LTO TapeLTO Tape Speed and capacity is expected to double with each

generation of the LTO format. The LTO format Generation 1allows for up to 100GB capacity (uncompressed) in a singlecartridge, while LTO format Generation 2 doubles thecapacity up to 200GB (uncompressed) using Generation 2data cartridges. The data transfer peak performance speeddoubles from up to 20MB/second native in the LTO formatGeneration 1 up to 40MB/second native in Generation 2.

Users will benefit from a greater than 30 percent increasein the number of tracks and average tape speed, as well asan improved recording method. The LTO format Generation2 provides users with outstanding data and investment

protection because of its capability to read-and-writeGeneration 1 cartridges in the LTO Generation 1 format. LTO format come in 2 flavours : 1) Single reel catridge

optimized for greater storage capacity called ULTRIUMand 2) Dual reel cartridge designed for faster access called ACCELIS


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LTO TapeLTO Tape

The LTO compatibility is defined with twoconcepts demonstrating investmentprotection:

1) An LTO drive is expected to read datafrom a cartridge in its own generation andat least the two prior generations.2) An LTO drive is expected to write data

to a cartridge in its own generation and toa cartridge from the immediate priorgeneration in the prior generation format


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LTOLTO--55

The current draft has the followingspecifications:[14][15]

Capacity of 1.5 TB (1500 GB)

Uncompressed data transfer rate of140 MB/s

Specifications announced January19, 2010

The first LTO-5 drives appeared onthe market in Q2, 2010 [16]


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Other Types of TapeOther Types of Tape

Mammoth

AIT Advanced Intelligent Tape


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EXABYTEEXABYTE -- MammothMammoth Exabyte introduced the 8mm helical scan tape drive in

1985. At that time, the 8mm drive mechanical sub-assembly was designed and manufactured by Sony.Exabyte supplied the electronics, firmware, and cosmeticsfor the final product. Two generations of full high

and one generation of half high tape drives were developedunder the Sony/Exabytepartnership. Exabyte chose todevelop and manufacture their own scanner for theMammoth product and terminated their relationship withSony for any future drivetechnology. Exabyte continues torely on Sony for its Mammoth Advanced Metal

Evaporative (AME) media. Exabyte also uses mechanicalsub-assemblies from Hitachi for its value-line 8mmproducts.


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SonySony AIT (AdvancedAIT (AdvancedIntelligent Tape)Intelligent Tape)

Sony, continuing its role as a leading innovator intape technology, began producing the AIT (AdvanceIntelligent Tape) drive in 1996. The AIT drive isdesigned and

manufactured entirely by Sony. Although the 8mmhelical scan recording method is used, the AITrecording format is unique and incompatible with8mm drives from

Exabyte. The AIT drive is the first generation of a

technology family positioned to double capacity andtransfer rates every two years.


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SDLT vs LTO vs AITSDLT vs LTO vs AIT


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Optical DiskOptical Disk

Electronic data storage medium thatcan be written to and read.

CD R 650MB 700 MB W

riteonce Read Many Format

CD RW Rewritable 650MB -700MB

Rewritten as many as 1000 times


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DVDDVD -- Digital VersatileDigital VersatileDiscDisc

DVD 4.8 GB (Regular DVD)

Dual Layer DVD (8.84 GB)

Write once Read Many CD format

Blue Ray DVD (BD/DVD)

Using a blue violet laser (450nm) which isshorter wavelength than a red laser

(600nm) This allows data to be packed more tightly

and stored in less space 25GB/50GB


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Backup Hardware DevicesBackup Hardware Devices

Tape Drives and Disk Drives

Tape Drive Technology

DAT->Digital Audio Tape-Single tapedrive

DLT->Digital Linear Tape->5MB/s

SDLT->Super DLT->10MB/s LTO ->Linear Tape Open

VTL ->Virtual Tape Library


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Linear Tape OpenLinear Tape Open

LTO 1(100/200) [1:1.5 is achievable]

100 Gb is the Normal Capacity and

200Gb is the capacity whencompressed.

LTO2 ->200/400

LTO3 ->4

00/800 LTO4 ->800/1600

LTO5 ->1.5TB native capacity


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Tape Libraries supported byTape Libraries supported byNetbackupNetbackup

Tape Stakers (TS):- 8mm DAT Tapes, Tape Loaders, Tape Libraries, VTL Models of Tape Library Eg:-Sun->SL8500

NetBackup Device Support

VERITAS NetBackup software supports tape drives and libraries from a larger numberof vendors

The URL for NetBackup Enterprise Server 5.x hardware compatibility matrices forspecific devices on specific OS platforms is: http://ftp.support.veritas.com/pub/support/products/NetBackup_Enterprise_Server/2

80666.pdf

The URL for NetBackup Enterprise Server 6.0 hardware compatibility matrices forspecific devices on specific OS platforms is:

http://ftp.support.veritas.com/pub/support/products/NetBackup_Enterprise_Server/278692.pdf

The URL for NetBackup Enterprise Server 6.5 hardware compatibility matrices forspecific devices on specific OS platforms is:

http://ftp.support.veritas.com/pub/support/products/NetBackup_Enterprise_Server/284599.pdf/


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Must Watch Videos onMust Watch Videos onYoutubeYoutube

Sun StorageTek SL8500 ProductTour 1 of 2

Sun StorageTek SL8500 ProductTour 2 of 2

Tape Library / Autoloader

Powering Up the SL8500 TapeLibrary

Imp links:-

http://www.quantum.com/Products/


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SCSISCSI

Small Computer Systems Interface

Support for many devices

Single SCSI Channel 7 Devices Bus mastering

Access to multiple devices

TCQ Intelligent BUS

MTBF


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SCSISCSI


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SCSI interface overviewInterface Bus

WidthClockSpeed

MaxThrough

put

MaxCable

Length

MaxDevices

SCSI 8-bit 5 MHz 5 MB/s 6 m 7

Fast SCSI 8-bit 10 MHz 10 MB/s 1.5-3 m 7Fast-WideSCSI

16-bit 10 MHz 20 MB/s 1.5-3 m 15

Ultra SCSI 8-bit 20 MHz 20 MB/s 1.5-3 m 7

Ultra Wide

SCSI

16-bit 20 MHz 40 MB/s 1.5-3 m 15

Ultra2 SCSI 8-bit 40 MHz 40 MB/s 12 m 7

Ultra2 WideSCSI

16-bit 40 MHz 80 MB/s 12 m 15

Ultra3 SCSI 16-bit40 MHz DDR 160 MB/s 12 m 15

- -


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SCSISCSI

SCSI Connector 50pins / 68pins

50 pins 8 bit system

68 pins 16 bit system


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SCSISCSI

SCSI I 5Mb/sec

SCSI II 10mb/ Sec (Fast SCSI /Wide SCSI)

Single Ended/Differential Versions

SCSI III 40Mb/SecUltra / Ultra 2 / Ultra 3 / Ultra 320

Termination


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SCSISCSI Termination/CablingTermination/Cabling

SE Single Ended

Single-ended SCSI uses half of thecable wires for carrying

data and control signals and the otherhalf for ground.

Because of this configuration, signalson a single-ended

bus are more susceptible to

corruption due to noise,


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SCSISCSI Termination/CablingTermination/Cabling

HVD

High Voltage Differential (HVD) SCSIuses a set of

two wires for each data or controlsignal on the bus.

Each signal is determined by the

difference involtage between the line pair, resulting

in higher

noise tolerance. This allows for using


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SCSISCSI Termination/CablingTermination/Cabling LVD (Low Voltage Differential)

Like HVD, Low Voltage Differential (LVD) SCSI also uses twowires for

each signal. This brings the differential bus advantage ofreduced signal

corruption due to noise. Another advantage of LVD is that ituses lower

voltages than HVD, reducing cost and power consumption.

Most LVD devices are "multimode", automatically detectingwhen they

are attached to a single-ended bus, and operating in single-ended

mode. This makes it possible to mix LVD and single-endeddevices on

the same bus. However, if only one single-ended device isconnected to


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SCSISCSI -- DrawbacksDrawbacks

Additional Hardware

Lower Volume

Cost


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Storage UnitStorage Unit

Definition:- A Storage Unit is a groupof one or more storage devices ofspecific type and density that areattached to a netbackup server.

It is the logical destination for clientdata

Tapes,Tapedrives,Robots,Library->Target Library

b i k ib i k i


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About Disk StagingAbout Disk Staging

Disk staging provides a method for administrators to createimages on disk initially, then later copy the images toanother media type (as determined in the disk stagingschedule). The media type for the final destination is typicallytape, but could be disk.

This two-stage process allows the NetBackup administrator

to leverage the advantages of disk-based backups in the nearterm, while preserving the advantages of tape-based backupsfor long term.

Disk staging meets the following objectives: Allows backups when tape drives are scarce. Allows for faster restores from disk.

Facilitates streaming to tape without image multiplexing.

i k i i d d ii k i i d d i


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Disk staging is conducted inDisk staging is conducted intwo separate stagestwo separate stages

A backup creates an image on the storage unit acting as the diskstaging storage unit.

A relocation schedule determines when the image from the diskstaging storage unit should be relocated to the destination storageunit.

The image continues to exist on both the disk staging storage unitand the destination storage unit. File restores are done from thedisk staging storage unit copy, while the destination storage unitcopy can be considered the long term copy.

The disk copy continues to exist on the disk staging storage unituntil either the copy expires based on the copy's retention period,or until another Stage I process needs space on the disk storage

unit. When a Stage I process detects a full disk staging storage unit, itpauses the backup, finds the oldest image that has beensuccessfully copied to the destination storage unit, and expiresthis image copy.


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Configuration of PoliciesConfiguration of Policies

Policy Definition:- The set of rules thatnetbackup follows when backing up itsclients

In Netbackup Administration Console:- How to create a new policy

- Note: Policy name should not have anyspaces

What does a Policy define?- Which Client,When/What/Where/How to

Backup


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Veritas Netbackup ClientVeritas Netbackup ClientSoftwareSoftware

It runs on client.

From Master Server and Mediaserver,ping the client using theclients ipaddress and host name andvice versa.

The above 3 way communication

should be there.


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PolicyPolicy

Attributes

Schedules

Clients

Backup Selections

Note:-When seen from the activitymonitor,the parent backup jobs will

have a under schedule but childjobs will have the description,foreg:firstbackup/daily/weekly/monthly.


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Take checkpoints every ---minutes ->If a backup job is

suspended for some reason and thenresuming the job from the mostrecent time can be possible if the

above option is set for example to 15mins.

Limit jobs per policy->2

Job priority ->9999 Eg: DB archive jobs have highest

priority.,hence set it to 9999.


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Allow Multiple Data StreamsAllow Multiple Data Streams

Multiplexing

Hardware level

Data streams from

multiple sourcesuse the same tapedrive.

Usually becausethe tape drivesspeed is high

Multistreaming

Software Leveloption

C:\---ABC(File1) ---DEF(File2)

---GHI(File3)

All the 3 files are

backed up in 3separate streamson to the tapedrive.

P f h t b k iP f h t b k i


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Perform snapshot backup isPerform snapshot backup isused to backup open filesused to backup open files


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Daemons and servicesDaemons and services

bpcd

Bpbkar(32)-

ClientMedia Server

Master server

Bpcd

(13782)

bpbrm

bptm

Bprd

(13720)

bpsched

Bpdbm

(13721)

bpjobd

Tape FilesCatlog


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List of DaemonsList of Daemons

Bpcd ->Client Daemon

Bpbrm -> recover manager

Bptm->Tape manager

Bprd->request daemon Bpshed->schedule daemon

Bpdbm-> database daemon

Bpjob ->Netbackup job daemon

Vmd->Volume Manager Daemon

Bpbkar(32)


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7 Steps7 Steps

1.When the Daemons wake upinterval occurs,the bprd on masterwill wake up and start the bpsched.

Note: bprd is also activated on mediaserver but after checking the bp.conffile(/usr/openv/netbackup/bp.conf)

and determining that it is notrunning on master server, bprdbecomes inactive.


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2. Bpsched calls bpdbm to check thepolicy for auto backup schedules

Bpsched calls the child process tohandle the backup

Bpdbm calls bpjobd to communicate

with job catalog

3. Bpsched child contacts the media

server to start the bpcd

4 On media server the4 On media server the


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4.On media server the4.On media server thefollowing occurfollowing occur

Bpcd invokes bpbrm.

Bpbrm starts bptm which requests a tapemount and spans a child process to

communicate with client. Vmd(Volume manager daemon)manages the volume catalog and handlesmedia requests through out the course ofthe backup job.

Bpbrm contacts the client to start bpcd inclient.

5.Clients bpcd starts the bpbkar(32)


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p p ( )

6.Bpbkar(32) reads data from client

Communicates directly with bpbrm tosend catalog meta data which isultimately written to images catalog

Send the backup data stream to thechild bptm process

7. The child bptm process passes the

data to the parent bptm processwhich writes data directly to thedestination media.


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Port numbersPort numbers

Bpcd - > 13782

Bprd -> 13720

Bpdbm -> 13721 bp.conf file is present in all

netbackup master/media/client(unix)servers.It contains the hostname and ipaddress of all the nodesinvolved in netbackup


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verbose flagverbose flag --LogsLogs

\netbackup\logs\

Configuration file entry that causes ahigher level of detail to be written inthe logs.

5 stages of logs->5->highest


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7 Netbackup Error Codes and7 Netbackup Error Codes and


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7.Netbackup Error Codes and7.Netbackup Error Codes andTrouble shootingTrouble shooting

Activity Monitor->RC->Fliter:-Status>1=>Shows all failed jobs.

Common Error Codes:-

0->Backup successful 1->Backup Incomplete

11-> System call failed

Rerun backup job after ensuring thatping from master to media and clientis fine.Else raise a ticket and assign toIntel team

12 13 14 Fil


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12,13,14-> FileOpen/Read/Write Failed

21,24->Socket open/write failed

->Restart Netbackup clientservices

41->Network connectivity timedout

42->Network Read Failed-> If Client cant be pinged then

raise a ticket.


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4646-->Server not accessible>Server not accessible

48-> Client host name not found

->Check bp.conf file on masterserver,media server and client

50-> Client process aborted 5-> Restore destination has no space.

53->Restore error.Backup restoremanager failed to read the file list.

54->Timed out connecting to client.->Host Properties->Client properties-

>Increase Client Read Timeout value.


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$ more bp.confSERVER=nj2nbu1-hanSERVER=nj2nbu1

SERVER=nj2nbu2CLIENT_NAME=uapkb2db.exnj2.MOMEN0265459

$ pwd/usr/openv/netbackup

7171-->None of the files in>None of the files in


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7171-->None of the files in>None of the files inthe file list existthe file list exist

83,84,86->Media open,write,position error

->Freeze media

96->Unable to allocate new media

->Scratch pool needs medias 98->Error requesting media

150->Job terminated by admin

156->Snapshot error->Refire after

sometime 196->Backup window closed

213,219->Storage Unit down/unavailable


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Imp Netbackup CommandsImp Netbackup Commands

Important 3 paths from where commandscan be executed:-

[ \usr\openv\veritas\netbackup or c:\prog

files\veritas\->Installation Path]1.\netbackup\bin\admincmd

2. \ volmgr\bin

3.< Install Path>\netbackup\bin\goodies

usrusr\\openvopenv\\veritasveritas\\netbackunetbacku


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usrusr\\openvopenv\\veritasveritas\\netbackunetbackupp\\binbin\\admincmdadmincmd

Bpmedialist m -h {Statusof media}

Bpmedialist summary {All medias and related info like->expiration date}

Bpmedia freeze/unfreeze m -h

Bpgetconfig g -L {Client details} Bperror u {Lists jobs failed with error code..} Bpdbjobs summary {activity monitor} Bpdbjobs report {Number of jobs queued/running/failed} Bpimagelist U -d -d {Images of backup for the client}

usrusr\\openvopenv\\veritasveritas\\volmgrvolmgr\\binbin


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\\ pp \\ \\ gg \\ Vmoprcmd {To check if drives are up or down} Vmoprcmd h -resubmit/reset

Vmquery m {Status of the tape/media} Vmupdate rt -rn

{To do robot inventory } Vmcheckxxx rt -rn

{Lists all slots in the tape lib.Can check slot availability}

Robtest -> 1 ->s d/s ->m d 1 to s 6 ->m s6 to d 1 Note:-Robtest is done to check if a media is stuck in a drive To check if robot is working fine move tapes from drive to slot or

vice versa

Vmchange m -p { To move a newmedia from one vol pool to another }

usrusr\\openvopenv\\veritasveritas\\netbackunetbacku


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usrusr\\openvopenv\\veritasveritas\\netbackunetbackupp\\binbin\\goodiesgoodies

Available_media {Shows all availablemedias in the environment}

Available_media |grep I Full |grep

I TLD{ To get the details of all the available

medias which are full in the tapelibrary}

Available_media | grep I

{Check if media is present in the tapelibrary.If yes then the result is TLD

else the result is none}


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RestoreRestore

Info needed:-Source server,Destserver,source file path,dest file path,dateof backup.

Source client,Dest client,Policy type,Start/End date and time,Preview and RestoreTabs

Preview shows the medias needed.

Check media robot type{TLD/none} foravailability of tape.

If destination is not given then the root of

netbackup will get filled.So be careful.


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Health CheckHealth Check

Regular Admin Job to check the activitymonitor for errors

Coordinate with other teams and get

issues resolved. Have the contact details of other teams

Raise tickets when required.

SEV 1/2/3/4

->8hrs/16hrs/5days/10days(varies according to SLA)


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Health Check(Contd)Health Check(Contd)

If there is a ticket breach then callfor a meeting

Put ticket on hold when other teamsare handling

Check for failed jobs.Usually backuptickets take time to resolve

On Call Support ->24x7 support


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Imp QuestionsImp Questions How to duplicate tapes? What is a catalog? And wat care should be taken in managing catalogs? What is multiplexing and multistreaming with examples? What is high and low water mark? How to restore backup medias from one master to other master server? If a catalog is corruped? How to restore?

How to archive catalog or how to reduce catalog if catalog sixe isincreased? How to use netbackup scripting for fine tuning? Basic parameters to create new policy? How is image stored in netbackup? If your last catalog backup was two days ago and the master server

crashed what would you have to do to bring your environment back up topresent time?

There is a Tape library with 10 drives ...Can we able to create 2 Storageunits.....?