ibm totalstorage ® ibm logo must not be moved, added to, or altered in any way. © 2005 ibm...

IBM TotalStorage®

© 2005 IBM Corporation

IBM TotalStorage®

Virtualise for Tiered Storage

Ken McKennaStorage Software Specialist

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IBM TotalStorage®

IBM TotalStorage | The power to break through © 2005 IBM Corporation

Virtualisation

Simplify the underlying IT infrastructure and its management to help lower cost and complexity while increasing your ability to respond to changing demands

OrchestrationOrchestration

StorageStorage InfrastructureInfrastructureManagementManagement

StorageStorage InfrastructureInfrastructureManagementManagement

HierarchicalHierarchicalStorageStorage

ManagementManagement

HierarchicalHierarchicalStorageStorage

ManagementManagement

ArchiveArchiveManagementManagement

ArchiveArchiveManagementManagement

RecoveryRecoveryManagementManagement

RecoveryRecoveryManagementManagement

Storage VirtualisationStorage Virtualisation

Advanced Copy ServicesAdvanced Copy Services

Hardware InfrastructureHardware Infrastructure

TapeTapeDiskDisk Storage NetworkingStorage Networking

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IBM TotalStorage®


Infrastructure SimplificationSome terminology

Consolidation– Leverage advances in storage density to consolidate many older

devices into fewer – or one – newer device.

Virtualisation– Separate the logical representation of a resource from its physical

implementation – improving flexibility and simplifying management.

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IBM TotalStorage®


Logical Steps To Implementing ILM – Compliance and Tiered Storage

Step1: Planning and Assessment– Identify, evaluate, predict trends– Data categorization– Establish policies

Step 2: Active Data Management– Virtualise physical storage– Pooling of storage by class of service– Policy based file allocation and placement– Policy based file migration– Simplify and consolidate file systems

Step 3: Inactive Data Management– Business continuity– Email, Database, File Archive – Retention or destruction– Long term retention for compliance

Knowing your data

Automation and Efficiency

Long Term Disposition

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IBM TotalStorage®


What is the SAN Volume Controller (SVC)?

The SVC is a Block Storage Virtualisation product The SVC is an Enterprise-class Storage Server The SVC consists of pairs of tightly-coupled nodes for

performance & high availability The SVC allows storage systems from different vendors to co-exist

in the same virtual ‘pool’ of storage

The SVC is NOT a RAID controller

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IBM TotalStorage®


MDG1

MDG2

MDG3

Cluster:•Max 4 Node-pairs (8 Nodes total)

SAN Volume Controllers nodes

Managed Disks:•Select LUNs from up to 64 physical disk subsystems •Max 128 Managed Disk Groups•Max 128 LUNs per group

SVC - Terminology

I/O Group A I/O Group B

Virtual Disks:Max 4096 disks total (16MB – 2TB each)Each virtual disk assigned to:• Specific Node-pair• Specific Managed Disk Group

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IBM TotalStorage®


Enterprise-class Disk

Mid-range Disk with Fibre Channel

Mid-range Disk with S-ATA

Hardware Infrastructure A hierarchy from high quality-of-service to low-cost

Quality of Service

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Quality of Service

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IBM TotalStorage®


Why Virtualisation?Lower TCO

SAN

HitachiThunder

HitachiLightning

EMCCLARiiON

EMCDMX

•Initial purchase price is significant

•With software and maintenance, 4-year TCO can easily double

•Initial purchase price is significant

•With software and maintenance, 4-year TCO can easily double

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IBM TotalStorage®


Why Virtualisation?Lower TCO

SAN

HitachiThunder

HitachiLightning

EMCCLARiiON

EMCDMX

Driver Driver Driver DriverDriver

However, multi-vendor disk environments come with problems…•Multi-path drivers•Management software•Copy service APIs

However, multi-vendor disk environments come with problems…•Multi-path drivers•Management software•Copy service APIs

HitachiHiCommand

EMCControlCenter

ShadowImageTrueCopy

ShadowImageTrueCopy TimeFinder

SRDF

TimeFinderSRDF

EMCControlCenter

SymmetrixManager EMC

ControlCenterNavisphere

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IBM TotalStorage®


Virtualise the Disks

SAN

Traditionally, host systems were aware of physical changes in the storage infrastructure.

Traditionally, host systems were aware of physical changes in the storage infrastructure.

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IBM TotalStorage®


SANVolume Controller


SAN

SDD SDD SDD SDD

TotalStorageProductivity Center

Single set of copy services


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IBM TotalStorage®




SAN

SDD SDD SDD SDD

TotalStorageProductivity Center



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IBM TotalStorage®


MDG1

MDG2

MDG3

Cluster:•Max 4 Node-pairs (8 Nodes total)

SAN Volume Controllers nodes

Managed Disks:•Select LUNs from up to 64 physical disk subsystems •Max 128 Managed Disk Groups•Max 128 LUNs per group

SVC – Online Demo

I/O Group A I/O Group B

Virtual Disks:Max 4096 disks total (16MB – 2TB each)Each virtual disk assigned to:• Specific Node-pair• Specific Managed Disk Group

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IBM TotalStorage®


SANSAN

Volume Controller

SAN

Improved Application Availability

Traditional SAN1. Stop the application2. Move data3. Re-establish host connections4. Start application

SAN Volume Controller1. Move data Host systems and applications are

not affected.

VirtualDisk

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IBM TotalStorage®


Reduced Cost and Improved Flexibilityfor Copy Services

Traditional SAN Replication service API’s differ by

vendor, making it difficult to integrate applications

Lower-cost disks offer primitive, or no replication services

SAN Volume Controller Common replication API, SAN-

wide, that does not change as storage hardware changes

Replication targets can be on lower-cost disks, reducing the overall cost of exploiting replication services

SAN SANSAN

Volume Controller

IBMDS8000

IBMDS6000

HPEVA

HPEVA

FlashCopyMetro Mirror

FlashCopyMetro Mirror Business Copy

Continuous Access

Business CopyContinuous Access

IBMDS8000

IBMDS4300

FC

EMCSym

HPEVA

SVC

IBMDS4100

S-ATA

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IBM TotalStorage®


DMX DS4300FC

DS6000 DS4100S-ATA

SAN Volume Controller SAN Volume Controller

SAN Data Migration “outside the box”

SAN Data Migration “outside the box”

TotalStorage SAN Volume Controller Copy Services

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IBM TotalStorage®


DS8000 Clariion DS4100S-ATA


SAN Metro Mirror “outside the box”

SAN Metro Mirror “outside the box”SAN FlashCopy

“outside the box”

SAN FlashCopy “outside the box”


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IBM TotalStorage®


9900DS6000 DS4100

S-ATASymmetrix


Cross-device consistency groups

Cross-device consistency groups


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IBM TotalStorage®


Performance – node pair

IOPs– Read (cache hit) 140,000 IO/s per node pair

– Read (cache miss) 50,000

– Write 20,000

Bandwidth– Read (cache hit) 1.5GB/s

– Read (cache miss) 1.0GB/s

– Write 400MB/s

Scales linearly with number of node pairs

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IBM TotalStorage®


SAN Volume Controller SPC-1 Benchmarkwww.storageperformance.org

SVC delivers record-breaking results in industry-recognized storage performance test

Treble the next closest virtualisation submission

Comparisons: DataCore 50K; HP EVA 24K; Sun 6920 49K

Workloads representative of real-life applications

SVC is one of only five products to achieve > 100,000 IOPS in the SPC-1 benchmark

Others: IBM DS8300; Texas Memory RamSAN; Fujitsu Eternus; 3PAR InServ S800

EMC and Hitachi have chosen to not participate in objective performance measurements

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IBM TotalStorage®


Three Architectures for Block Virtualisation

Host Zone

Storage Zone

Host Zone

Storage Zone

In-band Appliance• Caching enhances performance• Consolidates Copy Services

Array Based• No additional HW req’d• Array-based Copy Svcs

Intelligent Switch• Scales to very large networks• Array- or Switch-based Copy Services

SAN Volume Controller HDS TagmaStore EMC in 2005/6

Storage Zone

Host Zone

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IBM TotalStorage®


Architectural Differences – General Observations Customers don’t buy based on theoretical differences, they buy proven implementations

that solve their problems

Advantages of SVC implementation of cached appliance– Modular design – flexible for customers, not tied to monolithic arrays or Director-switches

– SAN agnostic – interoperates with existing SAN fabric

– Horizontal scaling – low entry cost yet grows to large Data Centres

– Proven HW platform – Failover based on proven storage controller designs

– Cache for network-based copy services and to balance across disparate storage

Theoretical concerns overcome by SVC implementation– Performance

Optimised SW Stack means additional latency in the worst case of 60 microseconds - ~0.5% degradation

Efficient cache algorithms means improved performance for many customers155,000 SPC-1 Benchmark far exceeding virtualisation alternative or traditional

arrays– Scalability

Horizontal scaling while maintaining a common storage pool – unique in the industry

Linear scaling in IO/s and bandwidth submitted with SPC-1 Benchmark100X scaling proven with customers from a few TeraBytes to hundreds

The proof is in the customer experiences of 1700+ customers and 50+ Customer Testimonials

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IBM TotalStorage®


TotalStorage SAN Volume ControllerSupported Environments (SVC v3.1)

Intended as an overview only.For the most complete information, visit ibm.com/storage/software


SAN

IBMDS

Family4K / 6K / 8K

HitachiThunder

920095xxV9520V

HPEVA30005000

STKFlexlineD-Series

HitachiLightning

9980V9970V

9910/9960

HPMA/EMA

80001200016000

EMCSymm

8000DMX

EMC/DellCLARiiON

FC4700CX2/3/4/5/6/700

MicrosoftMSCS

MPIO, VSS, GDS

IBMAIX

HACMP/XDGPFS / VIO

SunSolaris

VCS ClusteringSUN Cluster

HP/UXServiceGuard

Clustering

Linux(Intel/Power/zOS)

RHEL/SUSEW / LVM

IBMBladeCenter

Win/Linux/VMWare/AIXOPM/FCS/IBS

SAN


Continuous CopySynchronous

Asynchronous (Kaysha and other 3rd party solutions)

VMWareWin / NW

guests

Point-in-time CopyFull volume

Copy on write

IBMESS

F20750800

NovellNetWare

Clustering

Sun

9910/99609970/9980

HPXP

48 / 1285121024

. . .

1024Hosts

CiscoMcData

iSCSI to hostsVia Cisco IPS

Array-based copy services

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IBM TotalStorage®


SAN Volume Controller Storage Software Roadmap

V1.1V1.1

V1.2V1.2

V2.1V2.1

3Q03SVC applianceSIS SAN-in-a-Can

1Q04NAS 500G S-ATA EXP-100Veritas DMP support DWDM FC ExtendersSVC4MDS w/FC-IP

1Q05

#Hosts ScalabilitySolaris & HP-UX clustering HP-UX lift 8 LUN limit Netware 6.5 w/clusteringNew FAStT, New LCRBW2K3-MPIO, VSS,GDSImage Mode Data MigrationSW-Master Console option

UPS smaller package (2x1U)

4Q048 node scalability #vdisks scalabilityHP EVA, 9960/9910DS6000 / DS8000SUSE SLES 8EMC DMX

4Q05Enable Array Copy SrvsScalability: 1K HostsHardware upgrade x336, 8GB cacheCust Ease of Use EnhInterop Enhancements: storage, hosts

2Q04EMC Clariion/SymmHDS 9500V/9900VHP MA/EMA (full spt)Increase #hostsW2K3 w/clusteringVMWare, Solaris 9, RedHat 3.0BladeCenter

4Q03Data Migration, FlashCopy, Metro Mirror, ICAT, SMI-SUNIX, Windows w/ MSCS, LINUX, AIX with HACMP, BladeCenter OPMHP MA/EMA (single path)Heterogeneous storage: ESS, HDS, HP, EMC

SVC for MDS9000 Blade

Adv Copy Services SEFC Multiple FC Tgts Overallocation Incremental FC2X Scaling: nodes, hostsInteroperability EnhEmbedded CIMOMESS/DS Copy Srvs & Interop Converg

Note: States IBM's future product plans and general intentions only. It is subject to change or cancellation without notice and

should not be relied on for any purpose.

V1.2.1V1.2.1

V3.1V3.1V4.1V4.1

FuturesFutures

2Q06Adv Copy Services Global MirrorHardware upgrade: 4Gb/s HBA, RoHSCustomer Install HW/SWInterop Enhancemts: storage, hosts

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IBM TotalStorage®


HitachiLightning

SANTotalStorage

Productivity Center

SDD SDD SDD SDD

IBMDS6000


EMCCLARiiON

EMCDMX

IBMDS4000



IBMDS8000

HitachiThunder

HPEVA

A Tiered Storage InfrastructureMulti-vendor storage environment

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IBM TotalStorage®


SAN Volume Controller - optimised software stack

Har

dwar

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SCSI FrontEnd

SCSI BackEnd

Pee

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Pee

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Remote Copy

Cache

Flash Copy

StorageVirtualisation

Clu

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Man

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RAS / Internal

ConfigurationManagement

ExternalConfigurationManagement

Linux

IO path

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IBM TotalStorage®


SVC Performance Scaling : 8 node cluster

Workload8-Way x-335 SVC cluster

8-Way x-336 SVC Cluster*

IOP/s MB/s IOP/s MB/s

Read Hit 560,000 6,000 1,000,000 10,800

Read Miss 200,000 4,000 340,000 8,000

Write cache hit 160,000 2,400 240,000 -

Write cache miss 80,000 1,600 100,000 2,500

70/30 R/W 140,000 2,800 168,000 4,400

50/50 R/W 112,000 2,200 144,000 -

70/30/50 180,000 3,200 280,000 -

* Targets, based on extrapolation of measured latency and utilisation on x335.

ibm totalstorage ® ibm logo must not be moved, added to, or altered in any way. © 2005 ibm...

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