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Melbourne VMUG, 9 December 2010

VMWare at La Trobe. Melbourne VMUG, 9 December 2010 . Presenter. Peter Harms (RHCE) Unix Systems Team Leader La Trobe University, Bundoora VMWare Evangelist p.harms@latrobe.edu.au 03 9479 5163. Presenter History. First used VMware in 2000 (Workstation v1)

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Melbourne VMUG, 9 December 2010

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  1. VMWare at La Trobe Melbourne VMUG, 9 December 2010

  2. Presenter Peter Harms (RHCE) Unix Systems Team Leader La Trobe University, Bundoora VMWare Evangelist p.harms@latrobe.edu.au 03 9479 5163 VMWare at La Trobe Page 2

  3. Presenter History • First used VMware in 2000 (Workstation v1) • Heavy user of Workstation v3 and v4 from 2000 – 2005 • No exposure to GSX or ESX before starting at La Trobe in 2006, took over ESX admin role in 2007 • Now look after the entire VMware deployment at the University VMWare at La Trobe Page 3

  4. VMWare at La Trobe Page 4

  5. VMware “View” 10 years old? In early 2001 a colleague and I developed a system using Workstation 3 and advanced snapshot management REDO log files were manipulated in such a way that we could rapidly deploy applications and maintain user settings using VMware Workstation The concept was presented to my then employer, promoting the benefits of using virtualisation in the classroom/lab environment VMWare at La Trobe Page 5

  6. VMware “View” 10 years old? VMWare at La Trobe Page 6

  7. VMware “View” 10 years old? The process was completely automated and went into production soon after, and was still in use in 2006 The workstation and server specifications were quite low... VMWare at La Trobe Page 7

  8. Server specifications • Dual Pentium class CPU running at 750MHz or greater • 512Mb RAM (1Gb preferred) • 60Gb hard drive (minimum) for storing user settings between sessions 8

  9. Workstation specifications • Pentium class CPU running at 750MHz or greater • 256 Mb RAM (512Mb RAM if running Windows 2000 Server) • Quality video card (TNT2 class) • 10Gb hard drive 9

  10. Original La Trobe Environment In 2006/2007 the ESX environment at La Trobe was small: • 3 ESX hosts • Ver 2.5 (maybe even earlier) • Dual core server CPU’s • 16 GB RAM • Few datastores • Few VM’s VMWare at La Trobe Page 10

  11. Current Environment Over the last 4 years the environment has grown substantially: • ESX Enterprise Plus • Ver 4.0 Update 2, transitioning to ESXi 4.1 • 2 vCentre servers • 33 Hosts in 3 datacentres • 438 Virtual Machines • 8 clusters • 78 SAN datastores • 38 networks VMWare at La Trobe Page 11

  12. Production Environment • 14 Hosts • 10 HP BL 460c G6 • Dual socket, quad core, 72GB RAM • 4 IBM 3850 M2 • Quad socket, hex core, 72GB RAM • 200 Virtual Machines • 1 Datacentre • 3 Clusters • 1 Linux, 2 Windows • HA and DRS • Site Recovery Manager VMWare at La Trobe Page 12

  13. Dev Environment • 15 Hosts • 8 HP BL 460c G1 • Dual socket, dual core, 32GB RAM • 2 HP BL 480c G1 • Dual socket, dual core, 16GB RAM • 5 IBM x3655 • Dual socket, dual core, 32GB RAM • 160 Virtual Machines • 2 Datacentres • 4 Clusters • 1 Linux, 2 Windows, 1 Test • HA and DRS VMWare at La Trobe Page 13

  14. DR Environment • 3 Hosts • 3 HP BL 460c G1 • Dual socket, dual core, 32GB RAM • 4 production virtual machines sharing the hosts • 1 Datacentre • 1 Cluster • HA • DRS • SRM • 8 datastores being replicated VMWare at La Trobe Page 14

  15. Current VM Workload • Public website www.latrobe.edu.au and Intranet • Legacy and CMS • Application servers • PHP, Perl, Tomcat, IIS • Database servers • Postgres, MySQL, Oracle • Student Management System • Physical v Virtual performance testing • Learning Management System • WEBCT • Moodle VMWare at La Trobe Page 15

  16. Current VM Workload • DNS master and secondary nodes • Lectopia management node • Email gateways and quarantine DB • Listserv • Squid proxies • Windows File and Print • WINS • Monitoring • Cacti VMWare at La Trobe Page 16

  17. Physical v Virtual Testing VMWare at La Trobe Page 17

  18. Physical v Virtual Testing Physical machine Specification: 12 Core, 32 GB of Ram • Users supported: 85 VUs (CPUs peak >= 80% beyond 85 users) 6 VMs on the same hardware: • Users Supported: 150 VUs VMWare at La Trobe Page 18

  19. Physical v Virtual Testing Conclusion: • VMware is more efficient in handling number of users with better response times as compared to Physical hardware VMWare at La Trobe Page 19

  20. Environment Considerations • CPU compatibility • Essential for vMotion • Difficult to maintain over a 3 or 4 year hardware cycle • RAM utilisation • Never seem to have enough RAM • Physical OS separation to maximise shared memory • Storage • LUN sizing • VM grouping • Never seem to have enough storage • Network VMWare at La Trobe Page 20

  21. Design Considerations • Cluster design • To pool or not to pool • Physical separation • OS grouping • Host consistency • Cluster Sizing • HA considerations • Time to evacuate • Impact of failed host • VM density • Getting the right CPU/RAM balance • 8G per core VMWare at La Trobe Page 21

  22. Design Considerations • Monitoring • Be prepared to defend the environment • Oh, it’s virtual – there’s your problem... • This application is not supported in a virtual environment • Know what the environment is doing • Percent ready creep • Balloon blowouts • Know how to produce performance reports • Confidence must be tangible • Buy the right tools • vCentre does not do it all VMWare at La Trobe Page 22

  23. Performance Monitoring • VMWareAppSpeed • Quest vFoglight VMWare at La Trobe Page 23

  24. Performance Monitoring • VMWareAppSpeed • Agent on selected ESX hosts • Connected to vSwitch • Management VM • Plugin to vCentre • Monitors performance of applications • Http • Mssql • In depth analysis of database and web server performance • Reply Size, Latency, Hits and Throughput • Automatically discovers and categorizes traffic VMWare at La Trobe Page 24

  25. VMWareAppSpeed VMWare at La Trobe Page 25

  26. VMWareAppSpeed VMWare at La Trobe Page 26

  27. VMWareAppSpeed VMWare at La Trobe Page 27

  28. VMWareAppSpeed VMWare at La Trobe Page 28

  29. Performance Monitoring • Quest vFoglight • Many automated reports • Performance history • Alarm explanation • Fault prediction • Capacity planning • Resource hungry! VMWare at La Trobe Page 29

  30. Quest vFoglight VMWare at La Trobe Page 30

  31. Quest vFoglight VMWare at La Trobe Page 31

  32. Quest vFoglight VMWare at La Trobe Page 32

  33. Performance Monitoring Examples VMWare at La Trobe Page 33

  34. Performance Monitoring Examples VMWare at La Trobe Page 34

  35. Environment Consistency • Concept of server “Classes” developed in 2009 • Standardise the server hardware • More flexible usage options • Better fault recovery • Drop in replacement an option • Mobile datacentre possibilities • 5 classes for blade and rack servers • Single socket, quad core, 6GB RAM to: • Dual socket, quad core, 72GB RAM • All with 300G internal disk mirror • Blades preferred VMWare at La Trobe Page 35

  36. Environment Consistency • Concept of server classes further developed in 2010 • More emphasis on ESX hardware • Anything less than a Class C will be virtual by default • Target is 90% Virtual within 12 months • Sell the benefits of virtualisation • Low density hosts are worth it • DR made easy • Cut the hardware ties • Application mobility and uptime VMWare at La Trobe Page 36

  37. High Density Virtualisation • Virtualisation Challenges • Large Enterprise Applications • SAP • SQL/Oracle farms • Domain Controllers • Desktop Virtualisation • Patching un-clustered high availability servers • True high availability • Fault Tolerance VMWare at La Trobe Page 37

  38. Low Density Hardware VMWare at La Trobe Page 38

  39. Medium Density Hardware VMWare at La Trobe Page 39

  40. High Density Hardware VMWare at La Trobe Page 40

  41. Next Environment • CISCO UCS being deployed • 15 B200 M2 • Dual socket, hex core, 96GB RAM • General purpose ESX – high density low spec • 10 B200 M2 • Dual socket, hex core, 48GB RAM • Specific purpose ESX – low density high spec • 3 C200 M2 • Dual socket, hex core, 48GB RAM VMWare at La Trobe Page 41

  42. The Cloud • Was a cloud sceptic, now a convert! • Private Cloud with vCloud Director • Centralised IT management • Remove the “I need access to the console” problem • Delivering true “Infrastructure as a Service” • “Virtualise” the ESX hosts VMWare at La Trobe Page 42

  43. Questions VMWare at La Trobe Page 43

  44. Thank You Example presentation title Page 44

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