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L A TECHNOLOGY FORUM SEPTEMBER 25, 2008 IT Consolidation and Virtualization 1
L A TECHNOLOGY FORUM SEPTEMBER 25, 2008
IT Consolidation and Virtualization
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What problems will virtualization address?
• Contains operational sprawl by consolidating onto fewer but more powerful physical systems
• Substantially decreases space, power, HVAC, and network requirements for the existing and new Data Center
• Eases Disaster Recovery and Business Continuity by taking advantage of the virtual infrastructure hardware independence and application portability
• Improves adaptability and responsiveness to customer requests by leveraging existing physical platforms
• Changes the service delivery model from departmental to enterprise
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Wintel server growth projection - 2010
0
1000
# of CPUs
Projected Number of Wintel Servers by CPU in 2010
Worst Case - Status Quo 387 478 38 903
Best Case - Virtualization 0 22 36 58
Single Dual Quad Total
Consolidation ratio of 25:1 on Quad processor servers5% Physical Servers
95% Virtualized Servers
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Data Center space projection
Worst Case - Status Quo Current 2006 2007 2008 2009 2010Server Count 529 503 603 703 803 903Number of physical servers per rack 15 15 15 15 15 15Number of current racks required 36 34 41 47 54 61Square feet required per rack 17 17 17 17 17 17Total Square Feet Required 612 578 697 799 918 1037
Best Case - Virtualization Current 2006 2007 2008 2009 2010Server Count (529 = 263 physical + 266 virtual) 281 311 341 42 50 58Number of virtual servers per rack 135 135 135 135 135 135Number of racks required 20 20 22 5 6 6Square feet required per rack 17 17 17 17 17 17Total Square Feet Required 340 340 374 85 102 102Percent Reduction -44% -41% -46% -89% -89% -90%
Assumptions:• Server growth of 100 servers per year:
• 2006 – 2007 where 25% are physical and 75% virtual• 2007 – 2008 where 15% are physical and 85% virtual• 2008 – 2010 where 5% are physical and 95% virtual
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Data Center power projection
Worst Case - Status Quo Current 2006 2007 2008 2009 2010
Server Count 529 503 603 703 803 903
Number of physical servers per rack 15 15 15 15 15 15
Number of current racks required 36 34 41 47 54 61
Power consumption per rack 5 KVA 5 KVA 5 KVA 5 KVA 5 KVA 5 KVA
Total rack power required 180 KVA 170 KVA 205 KVA 235 KVA 270 KVA 305 KVA
Best Case - Virtualization Current 2006 2007 2008 2009 2010
Server Count (529 = 263 physical + 266 virtual) 281 311 341 42 50 58
Number of virtual servers per rack 135 135 135 135 135 135
Number of racks required 20 20 22 5 6 6
Power consumption per rack 10 KVA 5 KVA 5 KVA 5 KVA 5 KVA 5 KVA
Total rack power required 100 KVA 100 KVA 110 KVA 75 KVA 90 KVA 90 KVA
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Consolidation Architecture
WAN
Downey Data Center
Server XServer 1……..
Orange County Data Center
Server XServer 1……..SBC MON
EMC SAN
EMC SAN
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Where are we today?
Deployed VMWARE ESX 3 infrastructure at both Downey and Orange County Data Centers
Established virtualization as the primary form of Wintel server hosting Deployed over 400 virtual servers into production across both Data Centers
Shut down approximately 200 physical servers which equates to: Space: Approximately 10 racks worth of servers Electricity: 70 kVA = $103,883 per year Cooling: 263,463 BTUs = $114,590 per year Overall savings = $218,473 per year
Enabled automatic intra-Data Center failover Created and tested manual DR failover for inter-Data Center failover 8 VMWARE ESX clusters
48 HP DL585 servers 192 processors 3072 GB memory
34 TB EMC usable storage
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What applications have we virtualized?
Web Servers – IIS/Cold Fusion, OAS, Tomcat, ApacheDatabase – SQL, Oracle, AccessExchange – OWA, Exchange 2003Security – AV Portals, PatchLink, Cisco Security AgentActive DirectoryMicrosoft SoftgridCitrix XenApp 4.5DNS, Network ManagementGIS ServersLearning Management Systems (LMS)And many more…
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Challenges encountered along the way…
Underestimated the resources required for planning and administrative support One dedicated migration team (customer coordinator, migration admin,
system/network admin) can execute about 20 migrations per week “Hot” migrations did not work as advertised, requiring application
shutdown and extended unanticipated outages Pre-migration checklist was not fully developed during planning Underestimated the time required to coordinate and receive customer
approvals Customer resistance primarily due to the lack of understanding of
virtualization concepts Better management of customer expectations is needed with ongoing
communication Insufficient SAN disk space
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Virtualization goals for 2008-09
• Virtualization of 25% of the remaining Wintel physical servers
• Virtualization of Data Center network components• Unified IP – Storage network infrastructure
• Virtualization of desktop services• Implement a virtual desktop delivery infrastructure • Implement a virtual application delivery infrastructure• Implement thin client desktops
• Storage virtualization• “Thin” storage provisioning
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