1. Storage virtualization in time of crisis – 12 June 2009
IBM Storage Virtualization: New SAN Volume Controller Reduce Complexity and Enabling Information Availability of your IT Infrastructure
Marius Vasile
STG Storage Sales Manager – IBM Romania

2. What is Virtualization?
Logical representation of resources not constrained by physical limitations
Enables user flexibility
Centrally manage many resources as one
Dynamically change and adjust across the infrastructure
Create many virtual resources within single physical device
Eliminates trapped capacities
What is virtualization? It is a logical representation of resources not constrained by physical limitations. In other words, virtualization allows a set of physical resources to look and feel as if they were organized in a different manner. Virtualization has many advantages for customers:
Because a virtual configuration is really defined by software rather than hardware, it is very much easier and less disruptive to change a virtual infrastructure than it is to change a physical infrastructure (which may involve moving hardware or physical connections and may even be disruptive). As a result, a virtualized environment is more flexible and can respond more quickly to changing business requirements.
Another way of looking at virtualization is making many small things work in concert as one large thing. A good example of that is storage virtualization, where we can have multiple storage arrays from different vendors, work in concert as if they were one large single storage pool. Together, they are centrally managed in a common way, which helps simplify management and improves productivity.
As we’ve seen, it is easier to make changes to a virtual infrastructure than to a physical environment and so a virtual infrastructure can more easily change and adjust to different requirements.
Another way of using virtualization is to take something large and create many virtual resources from it, so making it look like many small things. This is the approach used whens partitioning an Intel server using technologies like the VMware ESX or partitioning a DS8000 storage system using logical partitions.
Finally, virtualization can help eliminate trapped capacity and enable all parts of your data center to take advantage of all the resources at your disposal. Traditional approaches where physical storage is dedicated to physical servers can “trap” spare capacity and make it unavailable to other servers that may need it. In a virtualized infrastructure, storage capacity is available for use by any server, making much more efficient use of resources.
And, finally, it’s being able to dynamically change and adjust these resources across the infrastructure. Think of that as being able to do what we could do in the mainframe for years, being able to extend that capability across a heterogeneous distributed enterprise.
IBM Virtualization
A comprehensive platform to help virtualize the infrastructure

3. Why Storage Virtualization?
“Server virtualization is about savings, but storage virtualization is … more about flexibility.”
John Murphy, CEO of MYRA Systems Corp
Top Storage Virtualization Business Drivers
Reduce capital costs (including real estate)
24%
As we’ve seen, virtualizing your information infrastructure can make it very much more flexible and responsive to business demands. While storage virtualization does result in significant cost savings, those savings usually are not the primary drivers for storage virtualization.
Aberdeen Group found that the principal business drivers for storage virtualization are as shown on this chart. You can see that the top drivers (reduce complexity, improve disaster recovery, improve utilization, and improve flexibility) are ones we have been discussing already.
Implement tiered storage
25%
Control rapid capacity growth
30%
Dynamic resource flexibility
33%
Improve utilization rates
38%
Disaster recovery and data protection
40%
Reduce data center complexity
43%
Source: Aberdeen Group

4. IBM’s Comprehensive Virtualization Offerings
Server virtualization
IBM Power Systems PowerVM, System z LPARs, VMware
Virtually consolidate workloads on servers
File virtualization
IBM Scale-Out File Services, DFSMS
Virtually consolidate files in one namespace across servers
File system virtualization
IBM System Storage N series Virtual File Manager
Virtually consolidate file systems into one namespace
Disk and tape storage virtualization
IBM SAN Volume Controller, TS7500, TS7600, TS7700, VTFM
Virtually consolidate storage into pools
SVC is an important part of IBM’s family of offerings for virtualization, which include virtualization throughout the IT infrastructure.
Server virtualization using logical partitions (LPARs) and VMware software enables workloads to be virtually consolidated onto fewer physical servers.
File virtualization using IBM General Parallel File System presents a single namespace (directory/folder structure) for files, which remains constant regardless of their physical location. This ability helps makes it easy to share file among servers and to implement tiered storage at a file level.
File system virtualization using IBM System Storage N series Virtual File Manager combines multiple existing file systems being exported as NFS or CIFS into a single namespace for ease of use and management.
Finally, SAN Volume Controller pools physical storage into pools for easier management and sharing.
The benefits of virtualization are complementary throughout the IT infrastructure. At each level, the various technologies described here offer similar benefits so when multiple layers of the infrastructure are virtualized, the benefits grow dramatically.
Storage infrastructure management
IBM Tivoli Storage Productivity Center
Consolidated management of virtual and physical storage resources

5. $$$ $$$ SAN today – Problems and Limitations $$$ Flashcopy ? ESS HPQ
Static Relationship between Servers and Storage Systems
Inefficient use of Storage resources, Migration of data usually disruptive
SAN today – Problems and Limitations
Proprietary, non-interoperabel Copy Services
Out of
Space
Out of
Space
ESS Drivers
ESS Drivers
HPQ Drivers
HPQ Drivers
LCRB Drivers
FC Switch
Management
Application
No homogenous Storage Management
Monolithic, expensive Storage Subsystem. Pay for Functionality when needing Capacity
Flashcopy ?
Out of
Space
Free
capacity
Explain server and storage
Defining LUNs are done direktly at disk arrays
Implementing a SAN, is not „a cloud“ as normally shown.
The LUNs have defirent colours, and the server need a driver to understand the disk array. Blue to blue, red to red and so on. This lock the server to one disk array, the server is static chained to the storage.
If one system ran out of capacity, it is impossible to use capacity from another disk array, because the server can‘t be attached to two defirent disk arrays, only one multipath driver is allowed at the same time on one server.
The disk arrays can‘t move data from one array to another, when they don‘t understand the same protocols, so from an array from HDS can‘t move data to en array from IBM, and the server can‘t do it, because only one multipath driver is allowed on the server.
Functions like remote mirroring and flashcopy is properitery solutions, and flashcopy in only a „in the box“ function.
Management is done on a array level, using defirent tools to do this.
Priceing is defirent from array to array, and on many high-end systems, you need a license for al the capacity in the array, even if you only need the function on a small part og the capacity. When you then need to expand the array to get more capacity, you also have to pay for the extra capacity for the function, even the customer don‘t want to use it.
$$$
Remote Copy ?
$$$
ESS
HPQ
LCRB
$$$
DS Storage Manager
Data Migration
ESS Specialist
CPQ Mgmt. Application

6. Increase Productivity +
Decoupling the Relationship between Servers and Storage Systems
Efficient use of Storage resources
Free SDD Multipath software
Ease Disk Array Management
Single Point of Management
Tier Level Storage Infrastructur
SDD
SDD
SDD
Improve TCO +
Maximize storage
Investment +
Increase Productivity +
Improve Connectivity
IBM SAN VOLUME CONTROLLER
Node
IO-Group
We again have some heterogeneous Storagesubsystems serving logical volumes and some servers intending to store data on that volumes.
<ENTER>
But now instead of directly connecting our servers to our logical volumes we introduce a virtualization layer between the volumes and the servers – a kind of a SAN-wide Storage Super Controller.
This controller now takes the logical volumes served by the storage subsystems and does the same what our controller in the ESS did with the physical hard drives: it defines volumes and serves them to the servers. This will be much more clearer in a minute.
We have now added our SAN wide Storage Controller, the IBM SAN Volume Controller. You see, the way it works is pretty much the same, as the storage subsystem controller in our ESS does, but this controller now is acting on a SAN wide basis. And as we talked about Storage Virtualization on a subsystem level in case of the ESS, we now are talking about SAN Virtualization. That’s all. Quite easy, isn’t it ?
OK, now let’s have a look at how this kind of virtualization can help us with the problems we just identified in our common, non-virtualized SAN infrastructure:
First of all, we recognize, that now, there is no longer any need to install different software components on the servers. This is, because all servers only see one storage controller, our IBM SAN Volume Controller. The SAN Volume Controller hides the fact from the servers, that there are heterogeneous storage subsystems in the SAN. And it takes away the burden to deal with different heterogeneous storage subsystems which has some very useful effects in terms of efficient use of the attached storage resources:
ESS
CPQ
LCRB

7. Increase Satisfaction +
Dynamic change of LUNs
Non Disruptive Data Migration
Out of
Space
SDD Driver
SDD Driver
SDD Driver
Improve TCO +
Increase Satisfaction +
Improve Application
Availability
IBM SAN VOLUME CONTROLLER
Node
IO-Group
As the actual storage subsystems are virtualized by the IBM SAN Volume Controller it becomes possible, that single logical volumes (as seen by the servers) span several physical storage subsystems, Just like it is possible in the ESS, that a logical volume spans multiple physical hard disk drives.
With that in mind, it becomes also clear that it will be possible that if one storage subsystem runs out of space and there is capacity left on some other storage subsystem the affected servers can access this capacity and operation can continue.
<ENTER>
Our SAN Volume Controller can also help us with data migration. It allows us to move data from one storage subsystem to another without the attached servers even noticing it and of course without interruption of continuous operationSo we clearly solved the problem of the inflexible relationship between storage subsystems and servers in traditional SANs. This allows us a much more efficient use of our valuable storage resources.
ESS
CPQ
LCRB
Free
capacity
Out of
Space
Data Migration

8. Improve TCO + Improve Application Availability
VDisk mirror
SDD Driver
SDD Driver
SDD Driver
Improve TCO +
Improve Application
Availability
IBM SAN VOLUME CONTROLLER
Node
IO-Group
<- Mirror ->
“logical view”
As the actual storage subsystems are virtualized by the IBM SAN Volume Controller it becomes possible, that single logical volumes (as seen by the servers) span several physical storage subsystems, Just like it is possible in the ESS, that a logical volume spans multiple physical hard disk drives.
With that in mind, it becomes also clear that it will be possible that if one storage subsystem runs out of space and there is capacity left on some other storage subsystem the affected servers can access this capacity and operation can continue.
<ENTER>
Our SAN Volume Controller can also help us with data migration. It allows us to move data from one storage subsystem to another without the attached servers even noticing it and of course without interruption of continuous operationSo we clearly solved the problem of the inflexible relationship between storage subsystems and servers in traditional SANs. This allows us a much more efficient use of our valuable storage resources.
ESS
CPQ
LCRB

9. Protected Investment + Improve Storage Utilisation
Disk Array independant mirroring
Lower Secondary Array Cost
Traditional SAN
Replication service API’s differ by vendor, making it difficult to integrate applications
Replication targets must be the same expensive disk as the source
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
Improve TCO +
Protected Investment +
Improve Storage Utilisation
The use and management of replication services is another area where the SAN Volume Controller can dramatically improve a traditional SAN. Lets paint the picture. Your lines-of-business have important applications. You want to use Point-in-time or Continuous copy services to protect those applications. But you are faced with two challenges. First, most vendors offer their copy services on their high-end storage servers – and they require that both the source data and the target copy be on the same type of high-end storage device. That means you have to buy twice as much high-end storage – driving up cost. Second, in order to build processes for, and integrate applications with these copy services, you have to use the vendor API’s – and each vendor has their own. Problem is that this approach locks you in to a particular vendor – or makes it very difficult to maintain a multi-supplier strategy to help keep capital costs down. Analysts speculate that these rigid limitations have prevented many enterprises from taking advantage of the tremendous value of copy services for improving application availability.
(click)
Virtualization reduces the cost and improves the flexibility of replication services. First, it gives you a common API that works across all physical storage devices – meaning you can integrate your processes and applications without the dark cloud of future change hanging over your head. Second, it allows you to use high-end storage for your primary data and lower-cost storage for your target copies – driving down the cost of implementing replication.
This is important – Watch.
SAN
SAN
FlashCopy PPRC
TimeFinder SRDF
SAN Volume Controller
SVC
IBM ESS
IBM ESS
EMC Sym
EMC Sym
IBM ESS
IBM FAStT
EMC Sym
HP MA
IBM S-ATA

10. SAN FlashCopy “outside the box”
SAN Volume Controller
SAN Volume Controller
LUN 1
LUN 2
LUN 3
LUN 4
LUN 1
LUN 2
LUN 3
LUN 4
LUN 1
LUN 2
LUN 3
LUN 4
LUN 1
LUN 2
LUN 3
LUN 4
RAID
controller 1
RAID
controller 2
RAID
controller 3
RAID
controller 4
You have two physical disk systems virtualized by the SAN Volume Controller. Let’s say that the green one is a high-end system from vendor “A” and the red one is a low-cost system from vendor “B”. You want to make a Point-in-time copy – what we call FlashCopy – of the primary data on the green. Because you have a virtualized environment (click), you can send that copy to the lower-cost red controller.
(click)
Now suppose you want to keep a continuous replica – what we call Peer-to-Peer Remote Copy (or PPRC) – at a remote site. Over at the remote site you have another high-end “green” disk system but you also have a lower-cost blue system from vendor “C”. Because you have virtualized your environment, (click) your continuous copy target can be on the lower cost system.
SAN FlashCopy “outside the box”

11. SAN Remote Copy (MetroMirror/Global Mirror)
SAN Volume Controller
SAN Volume Controller
LUN 1
LUN 2
LUN 3
LUN 4
LUN 1
LUN 2
LUN 3
LUN 4
LUN 1
LUN 2
LUN 3
LUN 4
LUN 1
LUN 2
LUN 3
LUN 4
RAID
controller 1
RAID
controller 2
RAID
controller 3
RAID
controller 4
You have two physical disk systems virtualized by the SAN Volume Controller. Let’s say that the green one is a high-end system from vendor “A” and the red one is a low-cost system from vendor “B”. You want to make a Point-in-time copy – what we call FlashCopy – of the primary data on the green. Because you have a virtualized environment (click), you can send that copy to the lower-cost red controller.
(click)
Now suppose you want to keep a continuous replica – what we call Peer-to-Peer Remote Copy (or PPRC) – at a remote site. Over at the remote site you have another high-end “green” disk system but you also have a lower-cost blue system from vendor “C”. Because you have virtualized your environment, (click) your continuous copy target can be on the lower cost system.
SAN Remote Copy (MetroMirror/Global Mirror)

12. Protected Investment + Improve Storage Utilisation
Improve TCO +
Protected Investment +
Improve Storage Utilisation
Disk Array independant mirroring / flashcopy
Lower Secondary Array Cost
Flexible Licensing
SAN Volume Controller
SAN Volume Controller
LUN 1
LUN 2
LUN 3
LUN 4
LUN 1
LUN 2
LUN 3
LUN 4
LUN 1
LUN 2
LUN 3
LUN 4
LUN 1
LUN 2
LUN 3
LUN 4
RAID
controller 1
RAID
controller 2
RAID
controller 3
RAID
controller 4
Now, you have an application that has data on the disk systems from vendor “A” and “B”. You want to create a continuous copy of that application and send it to the disk system from vendor “C”. (click) With the SAN Volume Controller you have the flexibility to do that – and the SAN Volume Controller will ensure that all the data from both source systems is kept in synch so the application is consistent when it reaches the other side.
The TotalStorage SAN Volume Controller – improving the flexibility of your disk storage infrastructure.
(click)
Cross-device consistency groups

13. Space-Efficient Virtual Disks (SEV)
SVC 4.3 introduces Space-Efficient Virtual Disks function, 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
Improve TCO +
Improve Storage Utilisation

14. Virtual Disk Mirroring
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
SAN Volume Controller
LUN 1
LUN 2
LUN 3
LUN 4
LUN 1
LUN 2
LUN 3
LUN 4
RAID
controller 1
RAID
controller 2
Improve TCO +
Improve Availability C1 C2

15. SVC Supported Environment
Vendor „Indenpendant“
Based on Open SAN Standard (SNIA)
Linux (Intel/Power/zLinux)
RHEL/SUSE
RHEL 5 ia32, x64
RHEL 3 Power
SLES 9 ia64
IBM N series Gateway
NetApp
V-Series
Sun Solaris
VCS/SUN clustering
Microsoft Windows 2008
MSCS
MPIO, VSS, GDS
Novell
NetWare
Clustering
IBM AIX HACMP /XD
GPFS / VIO
HP-UX 11i V3
Tru64
OpenVMS
ServiceGuard with SDD
IBM BladeCenter
Win/Linux/VMWare/AIX
OPM/FCS/IBS
1024
Hosts
SGI IRIX
VMware
Apple Mac OS
Protected Investment
New
New
New
iSCSI to hosts
Via Cisco IPS
SAN with 4Gbps fabric
SAN
Point-in-time Copy
Full volume, Copy on write 256 targets, Incremental, Cascaded
Space-Efficient
Continuous Copy
Metro Mirror
Global Mirror
New
New
New
SAN Volume Controller
SAN Volume Controller
Today, the SAN Volume Controller software supports an environment that looks like this. It is rapidly expanding, so that by the middle of this year (click) the supported environment will look like this. We hope that what you see up there represents a good part of what you have in your infrastructure.
(click)
Up to 8192 Virtual Disks
Space-Efficient Virtual Disks
New
IBM ESS, FAStT
IBM DS
DS4000
DS6000
DS8000
IBM N series
Hitachi Lightning
Thunder
TagmaStore
AMS, WMS
HP MA, EMA
MSA, EVA XP
EMC
CLARiiON
Symmetrix
Sun
StorageTek
NetApp
FAS
NEC
iStorage
Bull
StoreWay
Fujitsu
Eternus
Pillar
Axiom
300, 500
New
Virtual Disk Mirroring
For the most current, and more detailed, information please visit ibm.com/storage/svc and click on “Interoperability”.

16. IBM System Storage™ SAN Volume Controller
New Entry Edition priced 20-40% lower than enterprise SVC for comparable configurations
Enhancements
Enterprise-class storage virtualization now available in a more affordable package for mid-sized organizations
Software pre-installed on Storage Engines for rapid deployment
Business Value
Simpler administration: Up to 2x productivity improvements seen
Increase utilization of existing storage by up to 30%
Designed to ease and speed storage provisioning
Simple migration to enterprise SVC for more scalability
Technical Benefit
Designed to simplify the IT infrastructure
Improves disk performance, helps address performance bottlenecks
IBM System Storage™ SAN Volume Controller Entry Edition (SVC EE) is a new storage virtualization system that is designed to deliver enterprise-class capabilities in a package optimized for mid-sized businesses.
SVC EE is based on IBM’s SAN Volume Controller offering but delivered in a more affordable package.
IBM System Storage™ SAN Volume Controller Entry Edition (SVC EE) is a storage virtualization system designed to help customers reduce storage costs and improve efficiency.
As customers’ storage grows, SVC EE can grow with them, including conversion to the standard SVC offering for additional growth.
SVC Entry Edition virtually consolidates your storage so that all of your managed storage is potentially available to any attached server, which offers great flexibility but also helps to improve storage utilization by reducing “trapped” unused capacity.
Content by Chris Saul
Over 14,000 storage engines shipped running in more than 4,600 SVC systems
Learn More: ibm.com/storage/svc
Compliance Availability Retention Security

17. VMware Site Recovery Manager (SRM)*
Site Recovery Manager leverages VMware Infrastructure to transform disaster recovery
What it is:
Site Recovery Manager is a new VMware product for disaster recovery
What it does:
Simplifies and automates disaster recovery processes
Setup
Testing
Site Recovery Manager works with VMware Infrastructure to enable faster, more reliable, affordable disaster recovery
Failover
Failback
* Content is direct (unchanged) from VMworld presentation BC03.ptt: 17

18. Future Functional Enhancements:
Replication Functions
FlashCopy target is Remote Copy Source
Auto-creation of FlashCopy targets
Multi-target Remote Copy
Dynamic LUN expansion within relationships
Coordinated Metro/Global Mirror
Zero Impact background remote copy
Volume Management & Administration Functions
Non-disruptive VDIsk movement across I/O groups
Very Fast Node Reset
SEV Enhancements:
Deallocation for SEV FlashCopy Target vdisks
Deallocation for SEV Remote Copy secondary VDisks
Zero write detect from hosts
Increase to 4 copies for VDisk Mirroring
Non-disruptive MDG restriping after Mdisk addition/change
Throughput priority specified per VDisk
Round robin I/O across multiple controller ports for single mdisk instance
Network functions
Encryption
Compression
De-duplication
General SVC/Cluster Functions
Real Time Performance Statistics
iSCSI for backend controller attachment
Per-object/resource authorization
Dynamic Performance Monitoring
Linux Hosted SVC GUI
Increase object/resource name field (from 15)
Fibre Channel over Ethernet support
Scalability
64 WWNN limit lift for storage
1 PB Mdisks & 8 GB extent sizes (32 PB storage)
8K Mdisks supported
4K VDisks per I/O group supported
1K hosts attachment per I/O group
16 node clusters
SVC HW enhancements
Option to increase cache per node
Additional HBA per node giving more FC ports
Hot Spare Node for cluster
RAS enhancements
Autorecovery of node meta data (578)
CCU: manual trigger before 2nd node is upgraded
Cluster 900 recovery
Interoperability

19. Breakthrough Performance with SVC 4.3 (SAN Volume Controller)
SPC-1 benchmark: Simulates I/O characteristics of OLTP workloads
SVC delivers up to 274,997 SPC-1 IOPS
SPC-2 benchmark: Simulates heavy sequential workloads
SVC delivers up to 7080 SPC-2 MB/s
SVC is the fastest storage virtualization system in both SPC benchmarks
New SPC-1 benchmark obtained with Space-Efficient Virtual Disks
Demonstrates SVC ability to deliver high performance and advanced storage provisioning capability
SVC is the fastest virtualization system measured using industry-standard vendor neutral benchmarks. It is also the best performing physical-disk-based storage system in SPC-1 benchmarks including conventional disk systems.
The latest SVC SPC-1 measurement was obtained using the Space-Efficient Virtual Disks function. The measurement is very slightly better than the previous measurement showing that SVC can deliver outstanding performance while at the same time also delivering high storage utilization and advanced storage provisioning capability. To the best of our knowledge, no other SPC-1 benchmark has been conducted using thin provisioning technology.
Measurements conducted using 8-node SVC configurations, G4 nodes, and IBM DS4700 disk.
For more information, see

20. Value of a Virtualized Infrastructure
Improve TCO
Decrease management cost
Increase asset utilization
Link infrastructure performance to business goals
Access Through Shared Infrastructure
Leverage common tools across many systems
Improve business resilience and security
Establish foundation for future data centers
Increase Flexibility
Create pools of system resources
Maintain freedom of choice with open standards
Simplify by masking complexity
We started out talking about what the motivators were for virtualization among our clients. And, again, the vast majority of those were TCO related, trying to drive up the asset utilization, decrease management costs, federal link infrastructure performance to the business goals and that’s pretty clear, I hope, from all the example I’ve been taking you through. What’s also clear, though, to us, from literally thousands of engagements is that TCO is not the only benefit of a virtualized infrastructure – that there are two other very, very important values.
The second is this idea of access to a shared infrastructure, this ability to breakdown these islands of computing, these puddles of data, these stovepipe business processes and better integrate them into a single integrated virtual compute fabric, with a single virtual pool of information, and in so doing allowing clients to have common tools to manage across heterogeneous systems, allow them to increase their business resilience, their application availability and the security of the environment.
Now, you might wonder how this has improved security. Many of our clients are finding that they have 10, 20 or even 30 copies of data across their infrastructure. Because their data is so fragmented, because their physical infrastructure is so fragmented, it’s impossible to identify where all those data exist. And, in many cases that data is redundant and in many cases there are copies of that data that should have been eliminated a long time ago, because it was back level.
By having a virtualized environment, we have a single virtual pool of information and the access is integrated. You can implement a single access control mechanism for users. You can eliminate redundant or back-level copies of data, so you can improve security and, in fact – and very important to our clients today – you can improve their ability to respond to discovery motions and to know that as they respond to those discovery motions that they’re going to find the data that they expect to find and not a lot of back-level copies that they wished they didn’t have.
We also believe that virtualization is the cornerstone for building the infrastructure necessary to implement a services-oriented architecture. So, for those of you who have customers who are embarking on SOA, we would say that virtualization is a key enabler for implementing SOA. And, finally, virtualization can increase flexibility and freedom on choice, particularly true in the storage world, which has long been characterized by monolithic vertical integration. Virtualization allows clients to much more freely mix and match technologies to have a single console for managing distributed heterogeneous resources, allowing them to lower the switching cost, more flexibility, more freedom of choice, masking complexity.
Green
Lower energy costs
Reduce environmental impact
Increase capacity

21. Benefits of IBM Storage Virtualization
Better application and information availability
Move applications without disruption to users
Deploy applications faster
Move data safely without disruption to applications
Simplify use of tiered storage
More flexible disaster recovery
Remove limitations of physical infrastructure
Enable information management without concern about information location
Increase flexibility and responsiveness to business requirements
Ease deployment of multi-vendor environments
Note: More details about the benefits of storage virtualization may be found in the extended version of this presentation.
Simpler infrastructure and management
Logically consolidate without physical consolidation
Physically consolidate while keeping workloads separate
Simplify and standardize management
Improve administrator productivity
Improve resource utilization

22. IBM Storage Virtualization
Storage virtualization and server virtualization are complementary
Implementing only one limits capability of the other
Wide variety of storage devices require tailored virtualization offerings
IBM offers an integrated range of virtualization and management offerings, and services to address all parts of the IT infrastructure
Implementing IBM storage virtualization provides immediate benefits
… and entry point to implementing Dynamic Infrastructure
As we’ve seen, server and storage virtualization offer complementary functions. When you implement only one, you’ve virtualized only half of your infrastructure. And the unvirtualized portion can limit what you can do with the virtualized portion of the infrastructure. For example, a traditional physical storage infrastructure can limit your options such as preventing application movement with VMotion.
Because customers have deployed a wide variety of different storage systems that are accessed in different ways, different types of virtualization are required for these different devices.
With an unequalled 40-year history of delivering virtualization, IBM offers an unmatched integrated range of virtualization and management offerings to virtualize and manage all aspects of the information infrastructure. Coupled with assessment, planning and implementation offerings from IBM Global Services, it’s a winning combination that no competitor can match.
Customers should start now with an assessment of their existing information infrastructure. Implementing storage virtualization delivers immediate benefits and can be the first step towards implementing a Dynamic Infrastructure for even greater benefits across the IT infrastructure.

23. Find Out More IBM virtualization overview
ibm.com/systems/virtualization
IBM storage virtualization NewsCenter
ibm.com/systems/storage/news/center/virtualization
IBM storage virtualization offerings
ibm.com/systems/storage/virtualization

24. Simplify your IT

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Trademarks
The following terms are trademarks of International Business Machines Corporation in the United States, other countries, or both. Other company, product, and service names may be trademarks or service marks of others:
IBM, the IBM logo, ON (logo) DEMAND BUSINESS, DB2, Enterprise Storage Server, FlashCopy, POWER5, Tivoli, TotalStorage, TotalStorage Proven, System Storage, System p, System i, System x, System z, AIX, eServer, xSeries, pSeries, iSeries, zSeries, and BladeCenter