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Virtualization in the Datacenter. Timothy Antonowicz Systems Engineer Bowdoin College. Spring 2004. 76 Intel servers Projected growth for 15-25 per year No R&D infrastructure Limited Datacenter resources Need for higher availability and fault tolerance for services. Problem Statement.
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Virtualization in the Datacenter Timothy AntonowiczSystems Engineer Bowdoin College
Spring 2004 • 76 Intel servers • Projected growth for 15-25 per year • No R&D infrastructure • Limited Datacenter resources • Need for higher availability and fault tolerance for services
Problem Statement • We need to find a solution to our space and resource problem. • Address Hardware and Physical limitations • Support our diverse systems environment • Provide best use of staff resources • Consolidate to better utilize server resources
Software Requirements • Flexibility • Multiple OS support • Management • Ease of Use • Rapid deployment • Backup and Recovery • Industry Standard
Software: VMWare ESX Server • “Bare Metal Install” • Licensed per server, not per VM • Each VM assigned the same virtual hardware • VMs portable between different ESX servers • Image and Deploy servers in minimal time • Multiple Drive States • Use of “REDO” for changes • VM is comprised of 2 files, easy backup
Task: Create Testing Infrastructure • Build virtual servers as “sandboxes” • Programmers and developers • Application support and upgrades • Standardization of platforms • Backup and recovery • Self-service option
Task: Migrate or retire old servers • Replace older hardware with virtual • Application upgrades on VMs • P2V migration for static servers • “Plan for Virtual, move to Physical” • New upgrades or migrations are done to virtual servers first. If more resources are needed, it is moved to a blade at that time.
Task: Build for future growth • Create Server Images • Gold Win2k3 and Linux images • Scale ESX servers for growth • VM resource allocation • Scale servers at a common base • Increase disk, memory, CPU as needed • “Added resources make happy customers”
Task: Change the mindset of IT • “Plan for Virtual, move to Physical” • Projects begin with virtual servers • Charge/spec for “Server Resources” • Prove patches and upgrades in VM • Beat up on a Clone • Spread the wealth • separate file, web, and databases for security
Bowdoin Systems Today • 46 X86-based servers (retired 30 servers) • 122 X86-based hosts • 10 ESX servers hosting 86 VMs • 86 Virtual hosts vs. 36 Physical hosts • 70% virtualized in the x86 space
Savings • Cost of each Blade: $6,250.00 • Includes Disk, Memory, Dual Proc, etc. • Number of additional servers: • 86 virtual-10 ESX servers=76 • Cost to provide physical Servers • 76 x $6,250= $475,000.00 • ** Bowdoin did not purchase servers in FY05-06
Conclusion • Server Consolidation at Bowdoin was successful at many levels • Consolidation can be done by anyone with a little time, resources and determination • Bowdoin’s effort is ongoing • ESX 3 upgrade and migration- Fall’06
Thank you for attending • Tim Antonowicz Systems Engineer Bowdoin College 1-207-725-3723 tantonow@bowdoin.edu