© 2008 Hewlett-Packard Development Company, L.P.The information contained herein is subject to change without notice

StorageWorksLeftHand SANJasen BakerStorage Architectjasen@hp.com

HP LeftHand Solutions• Technology leader

− Founded in 1999 as LeftHand Networks− A recognized leader in iSCSI SANs− More than 14,000 installations− Over 4,000 customers− Ranked as “Visionary” Gartner’s Magic Quadrant− Acquired by HP in Nov, 2008

• All inclusive feature-set focus− “Pay-as-you-grow” architecture− Performance− Scalability− Availability− Simple management

• Must support dynamic workloads concurrently

Performance

• Scale capacity and performance linearly• No forklift upgrades or disruption

Scalability

• High availability: Data remains online when disaster strikes• Disaster recovery: Data is recoverable after a disaster strikes

Availability

• Simple to administer

Manageability

Storage requirements

HP StorageWorks array portfolio

MSA2000

Outstanding TCO

• FC & iSCSI host ports• FC & FATA HDD• Storage

consolidation + disaster recovery

• Simplification through virtualization

• Windows, HP-UX, Linux, VMware, Citrix, Hyper-V, MAC OS, and More

Always-on availability

• Data center consolidation + disaster recovery

• Large-scale Oracle/SAP applications

• HP-UX, Windows, + 20 more, including NonStop & mainframe

Low cost consolidation

• 4GB FC, 1GbE iSCSI, and 3Gb SAS

• SAS & SATA together• Controller-based

snapshot/clone• Windows, Linux,

VMware• WEB, Exchange, SQL

Business Continuity and Availability

Cons

olid

atio

n an

d Pe

rform

ance

XP EVA

XP24000

XP20000 All-in-

One

Simple Unified Storage

• iSCSI SAN and Optimized NAS with integrated snapshots, backup, replication, and simple management.

• Windows, Linux, VMware, more.

LeftHand SAN

Scalable, Clustered IP SAN

• Scalable performance

• SAS & SATA HDD• Cost effective

high availability• Simplified mgmt

for virtualization• VMware, Citrix,

Hyper-V, Windows, Linux, and More

The Value of iSCSI SAN ArchitectureInstallation and Management • Build dedicated GigE Subnet • Load iSCSI Initiator on Server• Install/Configure Network Storage Modules• Install Centralized Management Console • Mount and format volumes

•Scalable performance and capacityStorage Clustering

•Beyond the box availabilityNetwork RAID•Reduce costs, increase capacity utilizationThin

Provisioning

•Data protection, tape storage reductionSnapshot

•Disaster recovery via integrated replicationRemote Copy

5 features with every LeftHand SAN

Typical Storage Array Architecture

Monolithic Array• Not scalable

• Controller head Becomes bottleneck

• Scales capacity only• Single point of failure• Forklift upgrades

Scale-up Storage

SAN/iQ Storage ClusteringTrue clustering brings reliability, performance, and ease of management

•Storage clustering− Aggregates critical components− Data is load balanced− Predictable scalability

•Grow on your terms− Scale-out storage− Non-disruptive− Throttle bandwidth

•Storage tiering− Optimized for type of data− Online volume migration

•Simple centralized management− One step server-volume mapping− Integrated performance management

SAS

SATA

Centralized Management Console

DiskCache

Storage Node

Hardware RAIDSAN/iQ Storage

SoftwareRedundant CoolingRedundant power

CPUNICs

High Availability: Need is Greater With Server Virtualization

Traditional Servers Virtualized Servers

One server failure, one application goes down One server failure, ALL applications goes down

• Application server consolidation onto fewer physical servers exposes users to more application downtime in event of a hardware failure.

• Storage consolidation also creates a single point of failure!

Network Storage Modules

P4500 P4300

Rack Units 2U 2U

Quantity Drives 12 8

Hardware RAID Levels 5, 6, 10 5, 6 10

Quad Core Processors Yes Yes

15K RPM SAS Hard Drives1.8 TB3.6 TB5.4 TB

2.4 TB

7.2K RPM SATA Hard Drives3 TB6 TB9 TB12 TB

4 TB6 TB

•Full Featured Virtual SAN− SAN/iQ within an ESX

virtual machine− Virtualizes an ESX

server’s internal disk resources

− Significant storage footprint (up to 10TB)

− Only SAN appliance on VMware SAN/Storage HCL

− Highly Available storage across multiple ESX systems

− Shared storage for VMs

Virtual SAN Appliance for VMware ESXHigh Availability for Server & Storage For Remote/Branch Offices

VSAVSAVSA

LeftHand SANsCost effective storage for virtualization, easy to implement

SATA StarterSAN

SAS Starter SAN

VirtualizationSAN

Multi SiteSAN

Ala CarteStorage Nodes

Disk Drives 16 - 320 16 - 320 24 - 480 48 - 960 VariesStarting Capacity 12.0 TB SATA

9.4 TB Useable4.8 TB 15K

SAS

3.8 TB Useable

10.8 TB 15K SAS

8.2 TB Useable

21.6 TB 15K SAS

16.5 TB Useable

Varies

SAN/iQ Features• Storage Clustering• Network RAID • Thin Provisioning• Snapshots / Smart Clones• Performance Monitor• Remote Copy

3 Yrs Basic Support 1 yr Basic Support

Training Additional CostWindows Solution PackVirtual SAN Appliances $1,500 Per VSA

3 Yrs Basic Support

$1,500 per VSA3 Yrs Basic Support

10 VSA’s FREE3 Yrs Basic Support

10 VSA’s FREE3 Yrs Basic Support

$3,500 per VSA1 Year Support

Site 1 Site 2

Live Demonstration

SAN/iQ Network RAID

C

B

RAID 50 and RAID 100 - A combination of RAID 5 or 10 and RAID 0, where data is protected at the drive level with Raid 5 or 10 to provide for recoverability due to a disk drive failure, and the Data Volume (LUN) is then striped or spanned across the RAID set with no additional protection (RAID 0).

RAID 5+ RAID 0 = RAID50

RAID 10+ RAID 0 = RAID100

Application Server

POWERFAULT DATA ALAR M

Volu

me

1

Loss of an NSM within the clusterHowever With RAID 50 or 100 the loss of an entire unit would result in the loss of the volume since a portion of the data would be lost that comprises the volume. This could result in the server or application going down.

This is actually the highest level of protection that some of our competitors offer (either within a single enclosure across multiple RAID 5/10 sets, or spanned across multiple units configured with RAID5/10.

Our Network Raid Technology over comes this limitation

RAID 50/100

A

With RAID 50 a drive in 1 or more units could fail and the volume would still be available.

With RAID 100 2 drives in 1 or more units could fail and the volume would still be available.

AA

A

D

D

SAN/iQ Network RAID

C

B

B

B

C

C

Network RAID (across Cluster Protection) SAN/iQ Network RAID stripes and mirrors multiple copies of data across the storage modules in a cluster, completely eliminating any single point of failure.

Network RAID is specified on a per volume basis and can be used in conjunction with RAID 0 for performance, and RAID 5 or 10 for added protection and reduced rebuild times

Replication level None (0), 2, or 3

Application Servers

POWERFAULT DAT A ALARM POWERFAULT DATA ALARM

Volu

me

1

Loss of an entire NSM within the clusterData access speeds remain constantNo parity calculation requiredNo interruption of application access to dataCan Sustain Loss of multiple NSM’s

SAN/iQ Network RAID level 2

ExampleIn this example Volume 1 is striped across 5 individual NSM’s configured with Raid 5 disk protectionReplication level = 2BENEFITSLoad BalancingSingle drive loss protection in each NSM (from RAID5)Multiple (alternate) NSM loss protection in the cluster (From Network RAID)10 GigE connection points to Volume 1Highly redundant, fault tolerant systemEnable spread of data over a dynamic # of spindles

A

D

SAN/iQ Network RAID

CD

D

ExampleIn this example Volume 1 is striped across 5 individual NSMsRaid 5 disk protectionReplication level = 3BENEFITSLoad BalancingSingle drive loss protection in each NSMMultiple adjacent NSM loss protection in the cluster10 GigE connection points to Volume 1Highly redundant, fault tolerant systemEnable spread of data over a dynamic # of spindles

Application Servers

POWERFAULT DATA ALARM POWERFAULT DATA ALARM

Volu

me

1

Loss of NSM’s within the clusterData access speeds remain constantNo parity calculation requiredNo interruption of application access to dataCan Sustain Loss of multiple Adjacent NSM’s

SAN/iQ Network RAID Level 3

C

C

CA

A

A

D

BB

B

B

B

B

SAN/iQ Multi-site SANReal-time protection from site failure

Protect Storage By:− Racks− Room− Floor− Building− Site

Keep Data Online During:− Facility disruption− Natural disaster− Site maintenance

SAN/iQ ClusterSAN/iQ Multi-site SAN

A D A D

BA BA

C B BC

C D C D

Volumes Remain Online

SAN/iQ Multi-Site SAN and VMware ESX Cluster

VMware ESX HA Cluster

SAN/iQ Cluster is configured with equal storage in each siteESX cluster is configured with equal hosts in each siteSAN/iQ Network RAID replicates data between sites synchronouslyIn the event of a site failure SAN/iQ keeps volumes availableESX High Availability boots up virtual machines lost at the failed siteWhen the failed site comes back online ESX rebalances virtual machines (DRS)

6 Blocks

SAN/iQ Multi-site SANA D A D BA BA

C B BC C D C D

Volumes Remain Online

University of Maryland School of Medicine Campus

Remote Office Solution PackCost effective disaster recovery, no hardware required

SAN/iQ Cluster

SAN/iQ Cluster

SAN/iQ

SAN/iQ Cluster

SAN/iQSAN/iQ SAN/iQ

Replication for up to 10 remote sites• No SAN hardware at remote

sites• No other vendor can offer this• All other offerings are host

based or require hardware at remote sites

Included for no additional cost with:• Virtualization SAN• Multi-Site SAN

Support included with physical SAN

Traditional Provisioning

LeftHand NetworksThin Provisioning

50 GB

100 GB

30 GB

Auto Grow

Auto Grow

Auto Grow

Actual Capacity

Stranded Storage

Volume Size(Virtual

Capacity)

SAN/iQ Thin ProvisioningRaise storage utilization, increase return on investment, and reduce costsCost Savings− Purchase only what you need

today− Allocate only as data is written− No reserve necessary− Integrated with SmartClones,

Snapshots and Remote Copy

Delay Future Storage Purchases− Grow capacity as warranted

Simple to Manage− Enable/Disable with radio button

on per-volume basis

21

SAN/iQ Smart CloneReduces storage costs with efficient volume/snapshot copies

Space-efficient copies of volumes and/or snapshots, no duplicated data• Pro-active NOT Re-Active Deduplication!• New Smart Clone volumes contain no data, only changes are stored• Perfect for storing system images efficiently (boot from SAN and desktop)• Instant provisioning of volume copies for test and development

• Testing can be done with real data• No impact to production

Volume

SmartClone Volumes Fully functional volumesOnly changes stored

Original data, all clones use single copy

NO DUPLICATE

D DATA

100GB

100GB 100GB 100GB 100GB 500GB, 400GB duplicated data0GB 0GB 0GB 0GB 100GB of data, no duplication

SAN/iQ Performance Manager• Details

−Performance Monitor in the User Interface−Performance SNMP MIBs available−Performance Data Export capability for trending and analysis−Managed Objects

• Cluster• Application Servers• Volumes and Snapshots• Storage Node

−Performance Data Available• Throughput (MB per second)• IOPS (I/Os per second)• Latency (milliseconds)• Q-depth (I/Os pending)• Cache Hits (% cache hits)• CPU (% usage)• Memory (% usage)• Network Utilization (% utilization)

Matching Virtualization Features

Storage VirtualizationUses enterprise class x86 servers to Virtualize storage clusters

Server VirtualizationUses enterprise class x86 Servers to Virtualize multiple servers

Storage ClusteringData volumes are automatically load balanced and protected across storage clustersCapacity, IOPS, cache, and bandwidth scale linearly and dynamically as needed

VMware DRSContinuously monitors utilization across resource pools and intelligently aligns resourcesCPU, memory, and networks added dynamically as needed

Online Volume Migration Migrate volumes between storage clusters

VMotion Live migration of VMs between ESX Servers

Remote CopySynchronous replication of volumes to provide automatic failover

Site Recovery ManagerAutomatic failover of VMs to available ESX servers in clusters

Network RAIDSynchronous replication of volumes to provide automatic failover

VMware HAAutomatic failover of VMs to available ESX servers in clusters

Questions?

• Fault-tolerant• Easy to configure – No

switch configuration necessary

• 2 Gbit read / 1 Gbit write

Storage Cluster

Server Server Server

GigE Trunk

GigE Trunk

Active Path

Passive Path

SAN/iQ Network Connect - Adaptive Load Balancing(ALB) Bonding

Storage Cluster A

Server Server

Active Path

Passive PathServer

SAN/iQ Network Connect - Link Aggregation(802.3ad/LACP) Bonding

• NOT Fault-tolerant• Requires switch

configuration• 2 Gbit read/write per

NSM

NSM-1 NSM-3NSM-2VIP

A B C G H ID E F

Server-1 Server-4Server-3Server-2

Virtual IP - Store and Forward Architecture

Con: Creates singlebottleneck NSM

VIP hosts all dataconnection sessions.

NSM-1 NSM-3NSM-2VIP

A B C G H ID E F

Server-1 Server-4Server-3Server-2

VIP – iSCSI Load Balancing

Pro: Datapath Load isDistributed in a round robinAcross all NSMs

Each NSM sharesClose to an equal number ofsessions each.

NSM-1 NSM-3NSM-2VIP

A B C G H ID E F

Server-1 Server-4Server-3Server-2

LeftHand MPIO (DSM)

Pro: Datapath Load isdistributed across allNSMs

Con: Windows 2003 or 2008 only

Each NSM hostsdistributed IO loadshare for all volumes.