*third-party marks and brands are the property of their respective owners. copyright © intel...

*Third-party marks and brands are the property of their respective owners. Copyright © Intel Corporation 2004

Melrow Storage System QS316SBased on a intel Building block


IP SAN Architecture

ControllerIndustry standard

controller


controller


controller


controller Scale

P OWE R FA ULT DATA ALA RM Ethernet Switch

Application Servers

Ethernet Network

Disks Disks Disks Disks

Database File / PrintEmail

Note: Melrow IP SAN distributes user data across all controllers in the network cluster. Result is higher data availability and use of network to scale. Use of standards in infrastructure minimizes costs


Melrow Storage System QS316S

BenefitsFeatures

Provides redundancy capability for SAN management software

Dual Compact Flash cards containing SAN management software

Processing performance to help meet the demanding needs of storage virtualization

Dual Intel® Xeon™ Processors

Flexibility for optimizing performance and fault tolerance

Support for RAID 0, 1, 5, 10 or 50.

Easily add up to 4TB of raw storage without system downtime for future storage capacity needs. SATA drives currently provide higher capacity at a lower cost than SCSI or Fibre Channel drives.

Support for up to 16 hot-swappable SATA drives in a 3U form factor using Intel standard drive carriers.

Provides flexibility for connection optionsSupport for iSCSI or Fibre Channel connectivity

Further extend the capacity and performance of your SAN by using optional management software to link multiple Intel Storage Systems, simplify back-up, and share storage across multiple sites.

Optional SAN management software

Simplify SAN management by remotely configuring, provisioning, and managing data volumes.

Fully integrated, feature-rich SAN management software


Valu

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LowLow

Hig

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Benefits of Stand-Alone and Clustered Melrow Storage System QS316S

Stand Alone Easy to use SAN Mgmt software Common hw, standard building blocks Capacity for Up to 4TBs of raw storage iSCSI or FC connectivity

Entry Level

Mid Enterprise

Enterprise

CostCost HighHigh

Lo

wL

ow

Clustered Systems Pool storage and

connection resources to help increase capacity and performance

Fail-over capabilities Load balancing, replication

ScaleAvailability, Network connections, Cache, Processors, HDDsAvailability, Network connections, Cache, Processors, HDDs


Storage System ManagementBase Features**

Storage Server Console (SSC)

•Easy to use graphical interface for Windows* and LinuxIntuitive management console for configuration, auto-discovery, and remote diagnostics

Volume Management & Provisioning •Ability to configure and provision volumes quickly

without taking the system or existing volumes offline. Manage disk volumes in real-time, including size and accessibility•Ability to dynamically increase capacity of available storage pool

Over Subscription•Allows volume provisioning in excess of actual physical capacity•Saves upfront disk investment until additional capacity is actually required

Snapshots •Ability to manually make single or multiple copies of data volumes

Security •Provides authentication for protected access to data volumes using CHAP w/ iSCSI and LUN masking w/ Fibre Channel connectivity

Reliability•SAN Management application runs under a storage optimized Linux kernel•Complete O/S and application is contained on redundant Compact Flash cards

**Based on the Intel® StorageSystem


Volume Management & Dynamic Volume Expansion

Dynamic Volume Expansion

• No Server Downtime

• Users stay online

• If done Manually, requires File system expansion (Diskpart for example)


Dynamic Volume Expansion

Thin Provisioning and Autogrow

• Volumes can be “Thin Provisioned” (Partition/Device size greater than actual allocated space)

• Volumes can be set to Autogrow based on user defined thresholds and increments

• Eliminates the manual file system expansion and admin interaction

Partition (Server perceived disk size)Allocated Storage space

Auto Grow Incremental storage allocations


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Base Snapshot:Manual only

Snapshot always same size as primary volume

Benefits: • Near instantaneous retrieval of data

compared to tape backup solutions.• Facilitates recovery to pre-error state

(compared to mirroring, which would mirror all errors)

• Good for manual backups and data mining• Gives customers without snapshot

experience a low risk taste of the technology

1:00

PM

2:00

PM

Active File System

Snapshot 1

Snapshot 2

Rollback Volume:Volume reverts back to the point in time the snapshot was created

Base Snapshot


Storage System Management Advanced Features**

Scalability Package

•Multi-node virtualization which allows a group of SAN systems to act as a single unit•Load-balancing / pooling allows for resource sharing between the storage from all SAN systems in the cluster •Replication enables data to be split among all systems in a group in redundant and non-redundant configurations

Configurable Snapshot Package

•Ability to automate process of scheduling volume snapshot copies (base software only offers manual snapshot capability)•Allows dynamic snapshot sizing to capture only incremental changes between snapshots to optimize disk utilization

Remote Data Protection Package

•Asynchronous remote copy feature that allows for snapshots to be taken between multiple sites (over LAN or WAN) for disaster recovery

Client Server Clustering Agent

•Support for Microsoft* Cluster Server and Veritas* Cluster Server•Allows Microsoft* and Veritas* clustered client servers access to shared SAN storage

**Based on the Intel® StorageSystem


Scalability Package with Load Balancing

Volumes (LUN’s) striped across all units within a clusterConsolidates and simplifies managementAutomatic load-balancing w. “drag & drop” storage

Volumes are evenly distributed

• Over all Spindles

• Over all Processors

• Over all Cache

• Over all Network Connections

Provides redundancy and performance


How Replication Works

The order in which SSMs are added to the cluster determines the order in which copies of data are written to the volume.

Dynamic Pool Dynamic PoolDynamic Pool

Pool Member 1

Pool Member 2

Pool Member 3

Pool Member 4

Pool Member 1

Pool Member 2

Pool Member 3

Pool Member 4

Pool Member 1

Pool Member 2

Pool Member 3

Pool Member 4

B1

B2

B3

B4

B1

B1 B2

B2 B3

B3

B1

B1

B1

B2

B2

B2

B3

B3

B3 B4

B4

B4

B4

B4

4 Blocks of DataReplication=1




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Snapshot -- a set of incremental pointers of a volume at a point in time. It allows the users to “roll back” the volume to its state at a certain point in time in the past.

Features: • Can be automated on a per volume basis with

retention policies, etc.• No limit on the number of Snapshots• Can be mounted as Read-Only volumes for

backup or single file restore purposes.

Benefits: • Near instantaneous retrieval of data

compared to tape backup solutions.• Facilitates recovery to pre-error state

(compared to mirroring, which would mirror all errors)

• Minimal storage space required by incremental pointers to only delta (change) blocks.

• Some competitors require large “set aside” storage to be pre-allocated for snapshots. LeftHand allows Snapshots to start small and “Autogrow” as needed.

1:00

PM

2:00

PM

Active File System

Snapshot 1(preserves original file system volume)

Snapshot 2

Rollback Volume:Volume reverts back to the point in time the snapshot was created

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Stores changed blocks only

Configurable Snapshot Package


User_Data

User_DataMounted as Local Drive

User_Data_ss1

New volume is created to hold any changed blocks

Previous volume becomes Snapshot volume and is read only

User_Data Volume composed of Disk Blocks: A, B, C

User_Data Volume composed of MODIFIED Disk Blocks

All Operations Transparent to the Operating System and the User Community

How a Snapshot Works


Volume/snapshot relationship can be conceptually thought of as “layers”

Space is allocated from the storage pool to accommodate snapshots

User_Data_ss1 is the base line snapshot, the volume is read only

User_Data_ss2 contains the deltas since User_Data_ss1 was created

User_Data contains the deltas since User_Data_ss2 was created.

The User_Data volume is comprised of User_Data + User_Data_ss2 + User_Data_ss1

User_Data

User_Data_ss1

User_Data_ss2

Snapshot – Layered ArchitectureSnapshot – Layered Architecture


Remote Data Protection Package – “Killer App”

No distance limitations with IP protocol

Affordable due to Ethernet underpinnings

Can be managed from one location

Easy off-site backup management, either real-time or via snapshot

Remote Data Protection replicates at the block level– Efficient for whole volume replication

Remote Data Protection replicates incrementally– After the baseline level snapshot, future snapshot layers to be copied only contain

incremental data.

Remote Data Protection is efficient in dealing with network glitches– Copy is done in10% increments. If the network failed in the middle of a large

volume copy, the resumed copy will start at the closest 10% mark.

Remote Data Protection can be used to create “in Place” copies of volumes– Can be used to facilitate development, testing, or Data Mining efforts

Remote Data Protection supports multiple sites replicated to a central site– Can be used to facilitate centralized backup

Remote Data Protection can replicate bi-directionally between 2 sites. Allows for a company with multiple locations to provide Disaster Recovery for each site

Site ASite B

Remote Data Protection provides Remote Data Protection provides cost-efficient site diversitycost-efficient site diversity


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When a user manually chooses to create a Remote IP Copy or initiates a schedule to do so, the system goes through the following 4 step process…

1.System takes a snapshot of the Primary volume

2. System creates a secondary volume and an empty snapshot of the backup volume3. System copies

data from the primary snapshot to the Remote IP Copy snapshot

Production Site cluster Remote or DR Site cluster

Wan or Internet Link

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4. When a schedule is present, subsequent Snapshot layers are created and replicated to the remote site to “catch up” the Volume

In the Case of a disaster, one of the Secondary Snapshots can be “rolled back into the Secondary Volume and then put into production

Disaster!!!

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DR Site now in Production

Remote IP Copy Basics


IP SAN for Microsoft Exchange

IP SAN Benefits:IP SAN Benefits:

• Dynamic, pay-as-you-grow scalability for fast-growing Exchange implementations • More disk drives, network connections, and CPUs to increase performance as the storage pool grows

•Built-in replication, failover, and redundancy features to ensure availability

• Remote replication for affordable disaster recovery

• Disk-to-disk or snapshot capability for virtually “zero downtime” backups


IP SAN for Microsoft SQL Server

Local System Share

MS SQL Server

DB1 DB2 DF1 LF1 DB3

IP SAN Benefits:IP SAN Benefits:

• Dynamic, pay-as-you-grow scalability for fast-growing databases

• More disk drives, network connections, and CPUs to increase performance as the storage pool grows

Built-in replication, failover, and redundancy features to ensure availability

Remote replication for affordable disaster recovery

Disk-to-disk or snapshot capability for virtually “zero downtime” backups


Server Consolidation

Typical Architecture Before Server ConsolidationTypical Architecture Before Server ConsolidationPooled Storage Architecture after Server ConsolidationPooled Storage Architecture after Server Consolidation

Enables seamless capacity

expansion

Eliminates “islands” of storage

Saves money

Enables data availability/rapid

recovery


Backup


SAN Advantages• Centralize data management for all applications, database, email etc.

• Separate application and data management – no application disruption for data manipulation

• Increase storage utilization• Increase utilization by creating a shared storage “pool” – no stranded capacity

• Improve performance• Aggregate network links, cache, processors and HDD spindles for high

powered storage network

• Server consolidation• Consolidate servers by creating separate, independently managed storage pool

– allow servers to function in their primary task of application serving – not managing storage.

• High availability • Create redundant storage networks with IP or FC SAN fabric for full enterprise

wide redundancy and high availability

SANs: Primary Uses & Advantages


SANs: Primary Uses & Advantages

SAN Advantages (continued)• Real-Time backup

• By separating storage and applications, administrators can perform backup operations by implementing technologies such as Snapshot without interrupting user access or application performance

• Disaster recovery / Business continuance• SAN technology using Remote Copy allows administrators to manage remote

SAN installations and migrate data from one environment to another seamlessly in the background. Ideal for centralized corporate backups, archiving and disaster recovery / business continuance scenarios


Melrow Storage System QS316S Configuration

Direct Connect to Server Client(s)via Dual GigE LOM + one available64/133 PCI-X slot (Dual/Quad GigEor Dual FC)

Dual FibreChannel HBAor

Dual Gb Ethernet LOM

ServerClient

ServerClient

Melrow QS316S


Melrow Storage System QS316S Clustering

Single or multi QS316SSwitch Connection to Server Clients

1 2 3 4 5 6

7 8 9 101112

AB

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6x

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2x

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3x

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11x

5x

7x

1x

C FC or EthernetMulti-port switch

ServerClient

ServerClient

ServerClient

Melrow QS316S Melrow QS316S Melrow QS316S


FCMulti-port switch

ServerClient

ServerClient

ServerClient

1 2 34 56

7 8 9101112

AB

12x

6x

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2x

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3x

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1x

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r net

A

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6x

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3x

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4x

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1x

C

EthernetMulti-port switch, *or

direct connect.

Melrow QS316S

ServerClient

ServerClient

ServerClient

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r iSC

SI

Melrow Storage System QS316S Cluster with FC & iSCSI

Melrow QS316S Melrow QS316S


Storage System Console Main Window

– Network View - Displays all the SSMs on the network.– Tab View - Presents the functions associated with the selected item in the

Network View.– Alerts View – Provides a message area where alerts arrive from the active

monitoring of the SSM.

SSC Main Window

Menu BarMenu Bar

Tab ViewTab View

Network ViewNetwork View


Storage System Console Items


Using Module Functions

Review/upgrade software

Change Host Name

Backup/restore configuration after changing settings

Reboot the SSM

Change user password


Storage Functions

RAID States– Normal

– Rebuild

– Degraded

– Off


Jumbo Frames

Support for Jumbo Frames– Larger Packets = Fewer Packets = Lower CPU Load


Networking Bonding

– NIC Aggregation and Bonding

– Failover• Different Switches

– Aggregation• 802.3ad - Same Switch,

Combined Bandwidth, NIC Fault tolerance

*third-party marks and brands are the property of their respective owners. copyright © intel...

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