1. Copyright Tim Antonowicz, 2006. This work is the intellectual property of the author. Permission is granted for this material to be shared for non- commercial, educational purposes, provided that this copyright statement appears on the reproduced materials and notice is given that the copying is by permission of the author. To disseminate otherwise or to republish requires written permission from the author.

2. Virtualization in the Datacenter Timothy Antonowicz Systems Engineer Bowdoin College

3. 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

4. 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

5. Software Requirements Flexibility  Multiple OS support Management  Ease of Use  Rapid deployment Backup and Recovery Industry Standard

6. 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

7. 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

8. 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.

9. 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”

10. 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

11. 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

12. 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

13. 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

14. Thank you for attending Tim Antonowicz Systems Engineer Bowdoin College 1-207-725-3723 tantonow@bowdoin.edu