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Virtual(ization) Reality Check

Virtual(ization) Reality Check. James (Jim) Vence Technical Solutions Manager IBM Global Services May 18, 2006. Discussion Points. IT Optimization Approaches Brief History of Virtualization Intel Virtualization Case History Lessons Learned. About The Presenter. Standard Disclaimer Time.

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Virtual(ization) Reality Check

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  1. Virtual(ization) Reality Check James (Jim) Vence Technical Solutions Manager IBM Global Services May 18, 2006

  2. Discussion Points IT Optimization Approaches Brief History of Virtualization Intel Virtualization Case History Lessons Learned

  3. About The Presenter

  4. Standard Disclaimer Time My views do not necessarily reflect those of my employer (even though I am often right about these things !!!)

  5. Three approaches to IT Optimization Systems Rationalization Do you really need six separate accounting systems? Reduce server images, optimal use of HW Logical Consolidation / Shared Servers Reduce physical server footprints, environmentals Physical Consolidation / Virtualization These are not mutually exclusive!

  6. Physical Consolidation / Virtualization HTTP HTTP HTTP HTTP C++ C++ C++ C++ DB DB DB DB Op Sys Op Sys Op Sys Op Sys Virtual OS / Firmware Hardware Virtualization adds a layer of abstraction between the applications and the hardware.

  7. Logical Consolidation / Shared Hosting HTTP HTTP HTTP HTTP C++ C++ C++ C++ DB DB DB DB Operating System Hardware With “stacking” of applications, applications are closer to the hardware, your server has more cycles to spend on running programs than context switching operating systems.

  8. A Brief History of Virtualization • 1967 – IBM System /370 with Virtual Memory Support • 1972 – First release of VS1 – Virtual Memory Operating System • 1974 – VM/CMS – First release of “Hypervisor” based OS • 1988 – Mainframe PR/SM (Processor Resource/System Manager) • 1999 – User-Mode Linux Project started • 1999 – Adoption of Storage Area Networks (Storage Virtualization) • 1999 – VMWare Workstation Released (later known as GSX) • 2001 – VMWare Enterprise Server (ESX) Released • 2001 – IBM / HP Support for Logical Partition on Unix technology • 2001 – HP support for vPAR (soft partition) technology • 2002 – Sun Solaris Container Technology • 2003 – IBM SAN Volume Controller Technology

  9. Intel / VMWare Isolation HW utilization (*) Floor Space(*) Intel Virtualization is in the spotlight • Intel/VMWare: Commodization of HW, Windows and Linux prevalence, VMWare technololgy breakthrough. • Isolation: Still provides lines of business with a “my server” feel – easier adoption in the enterprise. • HW Utilization (*): Better use of available processor and memory, and I/O for systems with low/moderate I/O requirements. • Floor Space(*): Energy, HVAC, Footprint . * While logical consolidation provides the potential for better utilization in these areas, virtualization tends to have a “good enough”, and more favorable to implement benefit.

  10. Virtualization market for Intel/AMD Servers PlateSpin PowerConvert/Recon Virtuozzo ESXRanger Symantec LiveState Veritas VCS VMware P2V IBM TSM, TPM, RDM Higher Mgmt Backup, HA, P2V VMware VirtualCenter Virtual Iron Virtual Iron 3 IBM VMM HP VMM vm Mgmt Application Container Sun Solaris Containers Virtuozzo (SWsoft) Hypervisor Level 2 (Host OS) Level 1 (no Host OS) Para-Virtual VMware Server (GSX) Microsoft Virtual Server VMware ESX Xen XenSource VT(Vanderpool) Intel Pacifica AMD CPU Physical (Partitioning, Interconnections) IBM Scalability (x445, x460) Virtual Iron (Infiniband)

  11. Case History • Engaged by financial institution to consolidate server infrastructure and migrate servers to an IBM data center in Southbury, CT. • The Server Consolidation project began in March 2004 and will be completed in May 2006.

  12. Technologies Used • IBM HS20 and HS40 Blade Center • VMware ESX server 2.5 • Virtual Center with VMotion • Application Stacking • IBM Enterprise Storage Solution • XSeries Servers 445, 360 • pSeries 650 (8-way), 570 (16-way), 520

  13. Initial Server Environment • 700 physical Windows servers/images • 30 physical Unix servers and 32 Unix images

  14. Consolidation • Utilize Blade Center technology, VMware ESX server, and application consolidation to achieve overall server environment consolidation. • Results for Windows: • Physical Consolidation: 4 to 1 • Logical Consolidation: 2 to 1 • Results for UNIX • Physical Consolidation: 6 to 1 • Logical Consolidation: 2 to 1

  15. Application Stacking • Application stacking was able to achieve: • A 4 to 1 consolidation of a Citrix Farm • A 3 to 1 consolidation of a Databases • A 2 to 1 consolidation of other Applications • And a 20% reduction of database instances

  16. Benefits of the Consolidation • Significant reduction in operating cost • Significant reduction in software license cost • Less space and facilities costs required • Environment easier to manage • Improved availability. • Fewer Break/Fix problems for applications.

  17. Lessons Learned • Processors are seldom the tipping point • Memory, I/O, 32-bit limitations (e.g. file descriptors) • Horizontal scaling / n-tier architectures prevalence • Vertical scaling and stacking within tiers possible. • Consider capacity slush funds: • If you virtualize, have an exit plan to standalone • If you consolidate, exit plan for a de-consolidation. • Consider support implications • Configuration Management Databases and Systems • Collaboration with application staff (optimize applications)

  18. Thank You Jim Vence Certified IT Architect IBM Global Services jvence@us.ibm.com 1-585-723-4335

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