Upload
chester-allen
View
223
Download
3
Tags:
Embed Size (px)
Citation preview
IBM TotalStorage®
© 2005 IBM Corporation
IBM TotalStorage®
Virtualise for Tiered Storage
Ken McKennaStorage Software Specialist
2
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
Co
nte
nt M
an
ag
em
en
tC
on
ten
t Ma
na
ge
me
nt
3
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
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.
4
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
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
5
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
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
6
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
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
7
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
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
Co
st p
er M
B
Quality of Service
Co
st p
er M
B
8
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
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
9
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
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
10
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
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.
11
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
SANVolume Controller
Virtualise the Disks
SAN
SDD SDD SDD SDD
TotalStorageProductivity Center
Single set of copy services
Single set of copy services
12
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
SANVolume Controller
Virtualise the Disks
SAN
SDD SDD SDD SDD
TotalStorageProductivity Center
Single set of copy services
Single set of copy services
13
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
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
14
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
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
15
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
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
16
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
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
17
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
DS8000 Clariion DS4100S-ATA
SAN Volume Controller SAN Volume Controller
SAN Metro Mirror “outside the box”
SAN Metro Mirror “outside the box”SAN FlashCopy
“outside the box”
SAN FlashCopy “outside the box”
TotalStorage SAN Volume Controller Copy Services
18
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
9900DS6000 DS4100
S-ATASymmetrix
SAN Volume Controller SAN Volume Controller
Cross-device consistency groups
Cross-device consistency groups
TotalStorage SAN Volume Controller Copy Services
19
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
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
20
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
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
21
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
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
22
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
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
23
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
TotalStorage SAN Volume ControllerSupported Environments (SVC v3.1)
Intended as an overview only.For the most complete information, visit ibm.com/storage/software
SANVolume Controller
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
SANVolume Controller
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
24
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
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
25
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
HitachiLightning
SANTotalStorage
Productivity Center
SDD SDD SDD SDD
IBMDS6000
SANVolume Controller
EMCCLARiiON
EMCDMX
IBMDS4000
Single set of copy services
Single set of copy services
IBMDS8000
HitachiThunder
HPEVA
A Tiered Storage InfrastructureMulti-vendor storage environment
27
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
SAN Volume Controller - optimised software stack
Har
dwar
e La
yer
SCSI FrontEnd
SCSI BackEnd
Pee
r -
Pee
r C
omm
s.
Remote Copy
Cache
Flash Copy
StorageVirtualisation
Clu
ster
Man
agem
ent
RAS / Internal
ConfigurationManagement
ExternalConfigurationManagement
Linux
IO path
28
IBM TotalStorage®
IBM TotalStorage | The power to break through © 2005 IBM Corporation
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.