Nick Allen

1
Storage Trends and Directions Scenario

• Nick Allen

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2
Key Issues

• 1. How is the value proposition forstorage
  changing?
• 2. How will users scale and manage large storage
  area networks (SANs)?
• 3. What benefits should users expectfrom
  virtualization?

3
Storage Remains a Top Priority
Security Storage Internet project
initiativesPDA's and other wireless
handheldsOther Web-based applicationsSystems
integration servicesWeb integration
servicesNetwork hardwareCRM Supply chain, B2B
e-commerce Consumer e-commerce Intel/NT
Servers Portables ERP Unix servers Linux
servers Application development
(in-house) Relational database software Applicatio
n development (outsourced) Desktops Data center
outsourcing Contract labor services IBM and
compatible mainframes
73.9
57.2
46.6
45.8
45.2
42.4
41.7
41.1
34.5
34.5
39.2
31
23.2
21.9
20.5
20.1
18.7
17.4
16.8
12.1
2.4
-4.6
-10.4
-40
0
40
80
4
Storage 2002
Visibility
BlockVirtualization
SANManagement
Mainframe Virtual Tape
SRM
ASAM
SANs (FC)
CIM
SANs (iSCSI)
Backup
Replication
Library Management
HSM
Peak of Inflated Expectation
Technology Trigger
Trough of Disillusionment
Slope of Enlightenment
Plateau of Productivity
Time
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New Storage Selection Criteria

• No
• Electronics
• Microprocessors
• DRAM
• Disks
• Support equipment
• Cooling
• Power supplies

• Yes
• Architecture
• Software
• Integration/testing
• Partnerships
• Packaging
• Service/support
• Distribution
• Price

6
Nonproduct CriteriaBecome Paramount

• Solution packaging
• Ease of installation
• Low perceived risk
• Pre-sales service
• SAM tools
• Service and support
• Sales experience
• Marketing partnerships
• Education
• Emotional factors
• Total cost of ownership
• Scaling speed

Product
Nonproduct
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Buying Criteria Shifting toSoftware and Storage
Networks
2001 36 Billion
2004 39 Billion
Tape16
Tape15
StorageSoftware 16
ServerStorage56
ServerStorage67
StorageSoftware 14
SANNetworks12
SANNetworks4
Factory Revenue
8
IT Automation TrendPolicy-Based Computing
Services

• Strategic Planning Assumption Between 2007 and
  2010,the policy-based computing services vision,
  underpinned by network, storage and system
  management tools, will become a reality (0.7
  probability).

Application
Policy
ExpertSystems
KnowledgeManagement
Network
Server
Storage
Management
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Scaling SANs SAM What Am!
Application
Storage Area Management
Database
File System
Virtualizer
SAN Management
Path Management
I/O Driver
Virtualizer
NIC/HBA
Network
Virtualizer
Network
Zone Management
LUN Management
Port
LUN Masking
Virtualizer
RAID Management
10
ASAM Challenge Know Thyself
ProcessChange
KnowledgeManagement
Workflow
InfrastructureChange
PeopleChange
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SAN ScalingInhibitors and Accelerators
Securityconcerns
Lack of robust management tools
Thrashing
Cost
Complexity
Poorinteroperability
Emerging security methods
Switchestoo small
ProvisioningSoftware
iSCSI
EvolvingSAMAPIs
VSANs
Turnkeysolutions
Islandapproach
Bigger switches

Storage Consolidation
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SAN Scaling SAN Management
Challengers
Leaders
Emerging/OEM Other Players

• Prisa (EMC)
• InterSAN
• CA
• Netreon
• Creekpath
• Terraspring (EMC)
• Softek
• Storability
• Cisco Systems
• Sun Microsystems
• Others

EMC
Veritas
Hewlett-Packard
BMC
Compaq
IBM
McDATA/
SANavigator
As of January 2002
Visionaries
Niche Players
(From Preliminary SAN Management Software Magic
Quadrant, 8 January 2002)
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SAN Scaling Switch Vendors
Challengers
Leaders
Brocade
McDATA
Inrange
Cisco
QLogic
Vixel
Gadzoox
As of June 2002
Visionaries
Niche Players
(From SAN 1-Gbps Fibre Channel Switch Magic
Quadrant, 19 June 2002)
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SAN ScalingFutures iSCSI Position

Probability of occurring by
year-end Event 2000 2001 2002 2003 2004 2005 Mean
ingful, approved and open industry standards for
iSCSI .6 .8 .9 1.0 1.0 1.0 Proven, affordable
TOE cards .5 .7 .8 .9 1.0 1.0available with
IPsec Widespread availability of low-cost
.5 .7 .9 1.0 1.0Gigabit Ethernet Widespread
driver support for iSCSI .5 .7 .9 1.0Widespre
ad availability of storage .5 .7 .9 1.0subsyst
ems supporting iSCSI Widespread availability of
fully tested, .5 .8 .9interoperable,
certifiable homogeneous iSCSInetworks and
storage systems Same as above heterogeneous
environments .5 .7 .8 Larger Ethernet packets
(nice to have) .6
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Scaling SANsYear-End 2004 Outlook
Respondents
45
40
35
30
25
20
15
10
5
0
016
1764
65128
129256
257512
513-1,024
000s
10,000s
Total SAN Ports
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Feedback From Customers

• Experienced
• Core-to-edge
• Security
• Needs SAN management
• Self-sufficient
• Mostly homogeneous switches
• Needs more ports
• Needs are global

• New to SANs
• Start small
• Explore tape SANs
• Homogeneous
• Turnkey
• Large islands
• Do not cobbletogether yourself

Type A
Type B
Type C
17
Storage Virtualization
To make something that is not real appear to be
real

• Gartner Observations
• Virtualization is at the peak of hype.
• Virtualization is not a new concept.
• Virtualization is a valuable technique, not a
  technology or product.
• No wrong place, no one right place.
• Multiple levels OK.
• Convenient in SANs at edge or core.
• Symmetrical virtualization is just anotherway to
  spell controller.
• Asymmetrical promises more, but is mostly
  promises.
• Virtualization is key to next-generation storage
  monoliths.

Hosts
Hosts
VirtualVolumes
Managementand Data
Real Volumes
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Virtualization
Symmetrical
Asymmetrical

• Benefits of virtualization
• Address simplification
• Flexibility in building volumesto size and
  quantity
• Dynamic volume changes
• Quality of service
• Optimized performance,cost and availability
• Eliminated boundaries(servers, arrays and
  vendors)
• Challenges
• Scalability
• Manageability
• Reliability
• Complexity

Hosts
Hosts
Data and Control
Control
Data
Storage
Storage
19
Symmetric ApplianceJust Another Way to Spell
Controller

• Symmetric Appliance
• In the data path
• Aggregates disks
• Supports/specifies RAID
• Slices volumes
• Has redundancy and failover
• May provide
• Cache
• Point-in-time copy
• Remote replication
• Support for different brands of disk

• Array Controller
• In the data path
• Aggregates disks
• Supports RAID
• Slices volumes
• Has redundancy and failover
• May provide
• Cache
• Point-in-time copy
• Remote replication
• Support for different brands of disk

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Virtualization Vendors

• Asymmetrical Virtualization
• StorageNetworks
• HP/Compaq (VersaStore)
• TrueSAN
• StoreAge
• Symmetrical Virtualization
• DataCore Software
• FalconStor Software
• StorageApps (Hewlett-Packard)
• Veritas Software
• Softek
• Vicom Systems
• Z-Force (file)
• NuView (file)
• Brocade/Rhapsody
• Others
• Virtual Tape
• IBM
• StorageTek

• Symmetrical Virtualization
• (Disks integrated with controller)
• HP/Compaq
• DataDirect
• IBM
• Dell Computer
• LSI Logic
• Dot Hill Systems
• MTI
• EMC
• StorageTek
• Fujitsu
• Sun Microsystems (Vicom and Pirus)
• Hitachi Data Systems
• XIOtech
• Spinnaker Networks (file)
• Others
• Virtual SANs
• Cisco

changing
21
Conclusions and Recommendations

• Hardware technology limits are disappearing.
• Software is the key limiting factor in scaling
  and storage solutions.
• Remember enterprise-class products require
  enterprise-class vendors.
• Examine vendor testing activities carefully.
• Scale SANs carefully for productivity.
• Think SAM for scale.
• Think workflow, not tools.
• Plan to replace management software when products
  mature.
• Plan and implement a SAM practice, including a
  storage management organization that centrally
  manages across theglobal enterprise.
• Approach virtualization with informed caution.
• Monitor software evolution as the key limiting
  factor.