ibm sistemlerinizdeki bilgi patlamasını yönetmenin kolay yolu
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Veri Depolama Sistemleri Platform Lideri, IBM Türk
Sistemlerinizdeki Bilgi Patlamasını Yönetmenin
Kolay Yolu: IBM SAN Volume Controller
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Introduction
SAN Volume Controller Architecture
Storage Management Functions
SAN Volume Controller
Agenda
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Block VirtualizationSNIA Shared Storage Model
Fixed Size
Bounded Performance
break (occassionally)
As big, small or as many as users need
As fast as users need
Can be very reliable or not
Can grow, shrink, or morph
Physical Disks
Logical Volumes
Block Aggregation
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Block VirtualizationSNIA Shared Storage Model
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Block Virtualization Value Proposition
Storage Virtualization Layer
VirtualDisk
VirtualDisk
VirtualDisk
VirtualDisk
HP
EMCDS4000
DS8000
HDS
Combine the capacity from
multiple arrays into a single
pool of storage
Apply common
function set across
the storage pool
Manage the
storage pool from a
central point
Make non-disruptive
changes to the physical
storage infrastructure
© 2011 IBM CorporationIBM System Storage SAN Volume Controller6
SVC Delivers Availability, Performance, and Scalability
We designed and built SVC with
the resiliency of a storage controller
SVC supports non-disruptive firmware
updates and hardware maintenance on
the disk arrays to further increase its
availability
SVC is a proven offering, having been
delivering benefits to customers for six
years
It’s resilient
and highly available
It has the fastest benchmark
of any controller
It scales to manage
large environments
SVC has the fastest SPC-1
benchmark EVER submitted
(380K IOPS)
SVC has the fastest SPC-2
benchmark EVER submitted
(7.080 GBPS)
Many references quote
significant performance
improvements
(up to 10X faster)
SVC scales from very
small configurations
(1TB) to large enterprises
(> 500TBs) and growing !
New SVC engines deliver
dramatically better
throughput, supporting
larger and more I/O
intensive environments
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
SAN Volume Controller Delivers Value
Supports data
movement without
interrupting
applications
Allocate more
storage to
applications
automatically
Simplify
infrastructureScales to meet
business needs
Improves
business
continuity
Improves
storage capacity
utilization
Combines storage
capacity into a single
resource – from
multiple vendors
Manage storage as a
business resource, not
as separate boxes
Automatic process of
storage capacity
provisioning
Manage a single
storage resource
from a central
point
Migrate data
without disruption
Optimizes
resources
Creates tiers of
storage
Enables multi-
vendor strategies
Proactively support
information growth
As client data and
applications grow,
the storage
infrastructure can
grow with them.
© 2011 IBM CorporationIBM System Storage SAN Volume Controller8 IBM Confidental
IBM SAN Volume Controller 6.1
Industry-leading storage virtualization offering
Best performing storage virtualization system in industry-standard benchmarks
First storage virtualization system with fully integrated SSD support
Integrated iSCSI server attachment support
Fully upgradable without disruption from smallest to largest configurations
“Future proof” with ability to replace current hardware with new hardware without
disruption
Network-based virtualization with SVC supports diverse server environments
including VMware, other virtualization, and non virtualized servers
To date, IBM has shipped almost 22,500 SVC engines running in more than
7,200 SVC systems
In 2008 & 2009 across this entire installed base, SVC has delivered better than
five nines (99.999%) availability
SAN Volume Controller is a proven offering that has been delivering benefits to
customers for over six years
SAN Volume Controller can virtualize IBM and non-IBM storage (over 120
systems from IBM, EMC, HP, HDS, Sun, Dell, NetApp, Fujitsu, NEC, Xiotech)
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
SAN
Volume Controller
SAN Volume Controller Version 6Supported Environments
8Gbps SAN fabric
HPMA, EMA
MSA 2000, XP EVA 6400, 8400
HitachiLightningThunder
TagmaStoreAMS 200, 500,1000, 2100, 2300, 2500
WMS, USP
EMCCLARiiON
CX4-960
Symmetrix
Microsoft
Windows
Hyper-V
IBM AIX
IBM i 6.1
Sun
Solaris
HP-UX 11i
Tru64
OpenVMS
Linux(Intel/Power/zLinux)
RHEL
SUSE 11
IBM
BladeCenter
SAN
SAN
Volume Controller
Continuous Copy
Metro/Global Mirror
Multiple Cluster Mirror
VMware
vSphere 4
Point-in-time CopyFull volume, Copy on write
256 targets, Incremental, Cascaded, ReverseSpace-Efficient, FlashCopy Mgr
Novell
NetWare
Sun
StorageTek
IBM
DSDS3400DS4000
DS5020, DS3950DS6000DS8000
IBM
ESS,
FAStT
1024
Hosts
IBM
N series
NetApp
FAS
SGI IRIX
IBM N series
Gateway
NetApp
V-Series
IBM TS7650G
Bull
StoreWay
Fujitsu
Eternus3000
8000 Models 2000 & 12004000 models 600 & 400
NEC
iStorage
For the most current, and more detailed, information please visit ibm.com/storage/svc and click on “Interoperability”.
Space-Efficient Virtual Disks
New
Entry Edition software
New
Apple
Mac OS
Pillar
Axiom
IBM
XIVDCS9550DCS9900
IBM
z/VSE
New
New
New
New
SSD
New
Native iSCSI
New
New
NewNew
New
Entry Edition
Software
Virtual Disk Mirroring
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Introduction
SAN Volume Controller Architecture
Storage Management Functions
SAN Volume Controller
Agenda
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
SAN Volume Controller cluster
Storage Pool Storage Pool Storage Pool
consistent
Driver Stack
consistent
Driver Stackconsistent
Driver Stack
IBM SAN Volume Controller Architecture and Terminology
SVC Nodewith UPS (not depicted)
IO Group
Array LUNs
Managed Disk
vDISKhere: striped Mode
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Virtual-Disk Types
Virtual Disks
MDG1
MDG2
MDG3
Image Mode:
Pass thru; Virtual Disk = Physical LUN
Sequential Mode:
Virtual Disk mapped sequentially
to a portion of a managed disk
Striped Mode:
Virtual Disk striped
across multiple managed
disks. Preferred mode
A
A
B
B
C
C
C
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
SVC Cluster
SAN Volume Controller – Topology
© 2011 IBM CorporationIBM System Storage SAN Volume Controller14
14
iSCSI Server Attachment
Each SVC Storage Engines have two 1Gbps Ethernet ports
– Until now, 1 port per cluster used for management interface another for service
SVC 5 enables use of these ports for iSCSI server connections
Storage attachment, intra-cluster communication and remote replication still use Fibre Channel
1 port per cluster still used for management interface but not dedicated to this function
Helps reduce cost of server attachment
– May be especially helpful for BladeCenter configurations● Eliminates need for HBA in blades
– Helps reduce number of FC switch ports required
All SVC function available to iSCSI-attached servers
Virtual disks may be shared betweeniSCSI and FC servers
SAN Storage Zones
LAN
Host servers
with iSCSI HBAs
Fibre-attached hosts
Fibre-attached
storage
SAN ZonesSAN Volume
Controller
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
SVC 2145-CF8 Storage Engine
Based on IBM System x3550M2 server
► Intel® Xeon® 5500 2.4GHz quad-core processor
► Triple cache size to 24GB (with future growth possibilities)
► Four 8Gbps FC ports (support Short-Wave & Long-Wave SFPs)
Up to 4 Solid State Drives
New engines may be intermixed in pairs with other engines in SVC clusters
► Mixing engine types in a cluster results in VDisk throughput characteristics of the engine
type in that I/O group
Supported only by SVC software Version 5
2145-8G4 was withdrawn December 11, 2009
SVC 2145-8A4 Storage Engine (for entry edition)
Based on IBM System x3250 server
► Intel® Xeon® E3110 3.0GHz dual-Core processor
► 8GB of cache (same as model 8G4)
► Four 4Gbps FC ports (same as model 8G4)
Throughput approximately twice that of Model 4F2 and about 60% the throughput
of Model 8G4
At about 60% the price of the Model 8G4
SVC 2145 Storage Engines
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Constant development
Backward compatibility(64 bit not for 32 bit Hardware)
Non-disprutive Upgrade sincet
eight years
History
SVC 4F2 - 4GB cache, 2Gb SAN, 2006
SVC 8F2 - 8GB cache, 2Gb SAN (ROHS comp.)
SVC 8F4 - 8GB cache, 4Gb SAN 155.000 SPC-1 IOPS
SVC 8G4 - Dual-core Prozessor, 2008 278.000 SPC-1 IOPS
SVC CF8 - 24GB, Quad-core, 64bit 315.043 " 4-node
380.483 " 6-node
Re
lea
se
SAN Volume Controller R6.1 (CF8)
first Release
Continuous Product Evolution
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Stable Scalability
Leading availability record:
99,999 ~ 99,9999%
Maximum SVC-induced latency
= “invisible" 60µs
SVC behaves completely deterministic even under maximimum load due to
the absence of Interrupts
Technology = State-Loop with Adapter Polling
60µs
60µs
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
SVC: Innovative Scale-Out SSD Implementation
Add SSDs to SVC engines for more capacity– SSDs may be added without disruption to engines
Add SVC engines for more capacity and throughput– Additional engines provide more processing power, more bandwidth, more SAN attachments
– SVC designed to deliver maximum I/O capability of SSDs
– Up to 50,000 read IOPS per SSD
– Up to 200,000 read IOPS per SVC I/O Group
– Up to 800,000 read IOPS per SVC cluster
Add SSDs to scale capacity
Add SVC I/O Groups to scale throughput and add capacity
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Scale-Out SSD Support
Up to four 146GB SSDs per SVC engine
– Control costs: buy only as many SSDs as required● Minimum purchase: one SSD
Virtual disk mirroring used to protect SSD data
– Designed to protect against SSD or storage engine failure
– Up to 584GB mirrored capacity (1.2TB total) per I/O Group
– Up to 2.4TB mirrored capacity (4.8TB total) per SVC cluster
SSD fully integrated into SVC system
– Replication, data movement, management operate as for other storage
– Move data to/from SSD without disruption; make copies of SSD data onto HDD
– SSDs in one I/O Group (pair of Storage Engines) may be accessed through any I/O Group in SVC cluster
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Innovative SVC SSD Protection Options
Mirroring between SSDs
in SVC Storage Engines
– Suitable for use with any workload
– Recommended general-use
protection option
Mirroring between SSDs and
magnetic disk
– Unique SVC protection option
– Maximizes available SSD capacity
– Suitable for workloads with
primarily read I/Os
● Write I/Os are cached but write
throughput ultimately limited by HDD
ability
– Should be used only with well-
understood workloads
Unmirrored SSDs also an option
– No protection against SSD or storage engine
failure
– Maximizes available SSD capacity
– Not recommended
– Should be used only for easily recreatable data
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
SAN Volume Controller cluster
SAN Volume Controller Management Options
SVC GUI Completely redesigned
Browser based
Extremely easy to learn/use
fast
SVC CLI ssh
scripting
complete command set
Tivoli Productivity Center TPC, TPC-R
SMI-S 1.3
Embedded CIMOM
VDS VSS
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Monitoraccess to all viewing actions
GUIcannot perform any actions that change the state of the cluster or the resources that the cluster manages. The user can access all the information-related panels and commands, back up configuration data, change his or her password.
Copy Operatorcan manage all existing FlashCopy, Metro Mirror, and Global Mirror relationships. In addition, the user can access all the functions available to the Monitor role.
Servicecan view the View Clusters panel, launch the management GUI, and view the progress of actions on clusters with the View Progress panel, begin disk discovery process, and discover and include disks. A user with this role can also access all the functions available to the Monitor role.
Administratorcan access all functions on the management GUI and issue any command-line interface (CLI) command, except those that deal with managing users, user groups, and authentication.
Security Administrator (SecurityAdmin role name)can access all functions on the management GUI and issue any CLI command. Users with this role can also manage users, user groups, and manage user authentication.
Role based security concept
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Introduction
SAN Volume Controller Architecture
Storage Management Functions
SAN Volume Controller
Agenda
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
SAN Volume Controller – Storage Management Functions
Thin Provisioning (SEV – Space Efficient vDISKS)
Easy Tiering
vDISK Mirroring
Non disruptive Data Migration
Insert and Remove SAN Volume Controller
QoS mit IO Governing
Flashcopy (Point in Time Copy Engine)
Remote Replication
SVC base license:
Separate License Features:
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Thin Provisioning – Space Efficient vDisks
Space-Efficient Virtual Disks function is the SVC implementation of “thin provisioning”
Traditional (“fully allocated”) virtual disks use physical disk capacity for the entire capacity of a virtual disk even if it is not used
– Just like traditional disk systems
With SEV, SVC allocates and uses physical disk capacity when data is written
– Can significantly reduce amount of physical disk capacity needed
Available at no additional charge with SVC base virtualization license
Extremely efficient implementation
– Allocation grain size down to 32 KB
SEV will help save much of the “allocated but unused” space on virtual disks today
– Can be 50% or more of disk space, especially in Windows environments
– Storage administrators can focus on more strategic issues
Monitor total SVC capacity utilization, track trends, plan acquisitions
– No longer need to monitor and provision for individual disks
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Easy Tier
Automatic storage hierarchy
– Hybrid storage pool with 2 tiers
• Solid-State Disks (SSD) & hard disks
I/O Monitor keeps access history for each virtualisation extent
– 16MB - 2GB per extent
– Every 5 minutes
Data Placement Adviser analyses history every 24 hours
Data Migration Planner invokes data migration
– Promote hot extents
– Demote inactive extentsSSD HDD
Host Volumes & Extents
Hybrid storage pool
Host Host Host
Automatic extent migration
SVC V6.1
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
SVC Cluster
Applications may
produce Hotspots on vDISKs
limit total system performance
Easy Tier (continuous, self
optimizing Process)
Recognize Hotspots on vDISKs
Replace Hotspots with SSD
Throughput of vDISK gets
dramatically improved
improved performance
use of cheaper hard drives
less spindels
optimal use of SSD capacities
SVC SSD Speicher *
*In Version 6.1 nur mit externem SSD Speicher möglich
SVC Easy Tier (cont.)
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Magnetic Disk SSD
DPAIOM DMP DM
IO Monitor generates usage statistics and sends them to the Data Placement Advisor
Data Placement Advisor identifies hot spots, and outputs potential data migrations to the Data Migration Planner
Data Migration Planner decides which migrations to do based on the available storage and its characteristics
Data Migratory uses SVC data migration capabilities to seamlessly migrate the data to higher performing storage without any application interruption
A “hot spot” is formed when an application makes frequent use of the same area of a vdisk. Here, those extents are stored on magnetic disk
SVC Node
Do
min
o
DB
2
Exch
an
ge
vdisk
Easy Tier Management Code
Easy Tier Components
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Easy Tier Process – published Benchmark
First ever Storage Performance Council (SPC-1) benchmark
submission with SATA and SSD technology
– System configuration: 2.3 TB SSD + 96 TB SATA
Easy Tier
SSD
HDD SATA
Logical volume
0
10000
20000
30000
40000
50000
60000
0:00 2:00 4:00 6:00 8:00 10:00 12:00 14:00 16:00 18:00
Time
Th
ro
ug
hp
ut (IO
/s)
330% IOPSImprovement
Increase of
330%!
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
High Availability …
VDISK Mirroring
SAN
Volume Controller
Virtual Disk
SVC Cluster
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
SVC stores two copies of a virtual disk, usually on separate disk systems
– SVC maintains both copies in sync and writes to both copies
If disk supporting one copy fails, SVC provides continuous data access by using other copy
– Copies are automatically resynchronized after repair
Intended to protect critical data against failure of a disk system or disk array
– A local high availability function, not a disaster recovery function
Copies can be split
– Either copy can continue as production copy
Either or both copies may be space-efficient
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
…and also Disaster Recovery
VDISK Mirroring
SAN
Volume Controller
Virtual Disk
SVC Cluster
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
Server Cluster
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
SVC Stretched Cluster
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
3rd Quorum
Third site or
separate power domain
SAN Volume Controller – stretched Cluster – Topology
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
SAN
Non disruptive Data Migration
Traditional SAN
1. Stop applications
2. Move data
3. Re-establish host connections
4. Restart applications
SAN Volume Controller
1. Select Virtual Disk to migrate
2. Select Migration Target
3. Initiate Migration
4. Done
SAN VOLUME CONTROLLER
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Integration of SVC into existing environments
1
3
2
1 Storage subsystem LUNs assigned to server
2 Stop application
Assign storage subsystem LUN to SVC and create a VDISK on it
(Image Mode VDISK)
3 Assign SVC Image Mode VDISK to server.
Server accesses original data through SVC
Fast SVC integration
No need for time consuming
data migration
All subsequent data migrations
are completely non disruptive
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Quality of Service – IO Governing
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
SVC FlashCopy® Function
Volume-level local replication function
Designed to create copies for backup, parallel processing, test, …
Copy available almost immediately for use
Background copy operation or “copy on write”
Up to 256 copies of a single source volume
Source and target volumes may be on any SVC supported disk systems
Up to 256
targets
Source
vdisk
FlashCopy
relationships
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Incremental FlashCopy
FlashCopy capability where only changes from either source or target data since last FlashCopy operation are re-copied during a target refresh
Up to 256 incremental and non-incremental targets can exist for same source
Consistency groups can include both incremental and non-incremental FlashCopy targets
Helps increase efficiency of FlashCopy operations and can reduce time to refresh copies
Designed to allow completion of point-in-time online backups much more quickly, thus the impact of using FlashCopy is reduced
– May enable more frequent backups so enabling faster recovery
– More frequent backups could be used as a form of “near-CDP”
Start incremental FlashCopy
Data copied as normal
Some data changed by apps
Start incremental FlashCopy
Only changed data copied
by background copy
Later …
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Cascaded FlashCopy
FlashCopy capability to create “copies of copies”
– Mappings can be incremental or non-incremental
Allows a vdisk to be both source and target in concurrent FlashCopy mappings
– See diagram: Map 2 can be defined and triggered while Map 1 relationship exists
Maximum number of targets dependent on a single source disk is 256. The example shows 4 targets from source disk 0
Enables backup of target disks to be made without having to disrupt existing FlashCopy relationships with original source
Helps reduce time to establish copies of targets, since there is no need to await copy complete of target disk before triggering cascaded copy
Designed to increase flexibility in use of FlashCopy
Disk0Source
Map 1 Map 2
Map 4
Disk1FlashCopy
target of Disk0
Disk2FlashCopytarget of Disk1
Disk4FlashCopytarget of Disk3
Disk3FlashCopy
target of Disk1
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Reverse FlashCopy
FlashCopy capability to reverse relationships and enable rapid data recovery
Create disk backup copies of production data (up to 256)
If backup required because of damage to production data
– Unique capability to create copy of damaged data for diagnosis
– Reverse FlashCopy relationship and copy backup to recover production data
● No need to wait for physical data movement to complete
– Backup or other tasks using disk backup copies not affected
Designed to speed recovery from damaged data
Create disk backup copies
source
target
target
Later …
2. Reverse
FlashCopy
operation
OR
1. Preserve
damaged data
target
Backup to tape
can continue
unaffected
target
source
source
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
SAN Volume
Controller
SAN Volume
Controller
SAN Volume
Controller
SAN Volume
Controller
12:00
13:00
14:00
15:00
:
×256
Instant recovery. All
other flashcopies
stay intact
Virus
t0
Reverse FlashCopy (contd.)
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Combination of using SEV and FlashCopy together
Helps dramatically reduce disk space when making copies
Two variations
– Space-efficient source and target with background copy
Copies only allocated space
– Space-efficient target with no background copy
Space used only for changes between source and target
Generally what people mean when they talk of “snapshots”
Space-efficient copies may be updated just like normal FlashCopy copies
SEFC may be used with multi-target, cascaded, and incremental FlashCopy
– Can intermix space-efficient and fully-allocated virtual disks as desired
Space-Efficient FlashCopy (SEFC)
© 2011 IBM CorporationIBM System Storage SAN Volume Controller42 IBM System Storage SAN Volume Controller42
Tivoli Storage FlashCopy Manager
IBM Tivoli Storage FlashCopy Manager provides replication integration between major server software and IBM disk systems and virtualized storage environments
Comparable with NetApp SnapManager and SMBR– Operates with any storage supported by SVC
FlashCopy Create instant application copies for backup
or application testing
Many replication options including
incremental (only changed blocks) or
space-efficient copies (“snapshots”)
DS8000
FlashCopy Manager* Integrated, instant copy for critical
applications
Virtually eliminate backup windows
Rapidly create clones for application testing
View inventory of application copies and
instantly restore
XIV DS3/4/5 SVC
FlashCopy features differ between devices
* Planned availability 4Q09
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Task Completion
Type of Data Protection
Activity
Historical Managed Capacity
Amount of Data Protection
Activity
FCM – Integrated as MMC InterfaceDashboard
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Scheduled Backups
Schedule List
Output for
activity selected
above
Activity for
schedule
selected above
Scheduling
Wizard
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
SVC Metro Mirror Function “Metropolitan” distance synchronous remote mirroring function
Up to 300km between sites for business continuity
– As with any synchronous remote replication, performance requirements may limit usable distance
Host I/O completed only when data stored at both locations
Designed to maintain fully synchronized copies at both sites
– Once initial copy has completed
Metro and Global Mirror delivered as single feature
– Offers great implementation flexibility
Operates between SVC clusters at each site
– Local and remote volumes may be on any SVC supported disk systems
SVC Global Mirror Function Long distance asynchronous remote mirroring function
Up to 8000km distance between sites for business continuity
Does not wait for secondary I/O before completing host I/O
– Helps reduce performance impact to applications
Designed to maintain consistent secondary copy at all times
– Once initial copy has completed
Built on Metro Mirror code base
Metro and Global Mirror delivered as single feature
– Offers great implementation flexibility
Operates between SVC clusters at each site
– Local and remote volumes may be on any SVC supported disk systems
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
Remote Replication – SVC Multiple Cluster Mirror
Enables Metro and Global Mirror relationships between up to four SVC clusters
– Any virtual disk is in only one MM/GM relationship
One possible scenario: consolidated DR site
– Up to three locations supported by one DR site
– Other scenarios possible
Max MM/GM relationships increased to 8192
Designed to support more flexible DR strategies
Helps reduce cost of DR
MM or GM
RelationshipConsolidated
DR SiteMM or GM
Relationship
MM or GM
Relationship
© 2011 IBM CorporationIBM System Storage SAN Volume Controller
SAN
Volume Controller
DS8000 – User Data
SVC
Cluster Quorum
Virtual Disk
Windows /
VMWare
Servers
no LVM
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
DS8000 – User Data
3rd SITE REMOTE
DS8000 – User Data
TotalStorage Storage Engine 336
TotalStorage Storage Engine 336
Virtual Disk
SVC Metro/Global Mirror
SVC 3 Site Solution