Techinsight Penang 2010 topic

2. FULL ON Demo on Setting Up High Availability Virtual Machine Lai YoongSeng Consultant Redynamics Asia SdnBhd

3. Microsoft Windows Server 2008 R2 Hyper-V Requirement to Setup High Availability Virtual Machine Science Experiment (Demo) Clustered Shared Volume and Live Migration Agenda

4. Requirement 2 X Hyper V Server 2008 R2 Shared storage – FC / iSCSI 1 volume for Quorum 1 volume for Storage- VM ClusterNode2 ClusterNode1 SAN must support SCSI 3 Persistent Reservation

5. Requirement for using Failover Cluster - Node Operating system running Windows Server 2008 R2 or Hyper V R2. Same operating system on all nodes. Example:- Server Core Full Installation Windows Server 2008 R2 Enterprise Full Installation Windows Server 2008 R2 Data Center Free Hyper V 2008 R2 with Server Core Same Drive letter of system drive Hyper V role installed Same software updates (patches) and service packs Domain environment 5

6. Science Experiment Environment Test VM Live Migrate Gigabit Switch ClusterNode1 ClusterNode2 Domain controller VM ms4udc.ms4u.int iSCSI iSCSI Target

7. DEMO Science Experiment – Building High Availability Virtual Machine

8. Cluster Shared Volume Overview Concurrent access to a single file system Single Volume SAN Disk5 VHD VHD VHD

9. Solution in R1 In the past (2008) - 1 LUN for 1 VM LUN smallest unit of failover Run out of storage space Wasted storage space Storage management challenging Free Space Used VHD Space Wasted Space Out of Space VHD Many LUNs to Manage VHD VHD VHD VHD VHD VHD VHD VHD VHD VHD VHD VHD VHD

10. Solution in R2 The Solution (R2): 1 LUN for many VMs VM smallest unit of failover VMs share the pool of unused space Flexible utilization and easy management Free Space Used VHD Space Free Space VHD VHD VHD VHD VHD VHD VHD VHD VHD VHD VHD

11. Single Name Space CSV provides a single consistent file name space Files have the same name and path when viewed from any node in the cluster CSV volumes are exposed as directories and subdirectories under the “ClusterStorage” root directory C:lusterStorageolume1lt;root> C:lusterStorageolume2lt;root> C:lusterStorageolume3lt;root>

12. DEMO Setting up Cluster Shared Volume (CSV)

13. What is Live Migration Move a running Virtual Machine from one computer to another computer with no perceived downtime for the VM VM is not aware of the migration Maintain TCP connections of the guest OS Building block for Dynamic Data Center through business agility, cost reduction and increase in productivity High availability for production workloads Host is now offline for servicing (hardware, software)

14. How Live Migration Work?Initiate migration Client accessing VM Live Migrate this VM to another physical machine SAN IT Admin initiates a Live Migration to move a VM from one host to another VHD

15. How Live Migration Work?Memory copy: Full copy Memory content is copied to new server VM pre-staged SAN The first initial copy is of all in memory content VHD

16. How Live Migration Work?Memory copy: Dirty pages Client continues accessing VM Pages are being dirtied SAN Client continues to access VM, which results in memory being modified VHD

17. How Live Migration Work?Memory copy: Incremental copy Recopy of changes Smaller set of changes SAN Hyper-V tracks changed data, and re-copies over incremental changes Subsequent passes get faster as data set is smaller VHD

18. How Live Migration Work?Final transition Partition State copied VM Paused SAN Window is very small and within TCP connection timeout VHD

19. How Live Migration Work?Post-Transition: Clean-up Client directed to new host Old VM deleted once migration is verified successful SAN Since session state is maintained, no reconnections necessary ARP issued to have routing devices update their tables VHD

20. DEMO Live Migration

21. Summary Identified the requirement to setup High Availability Virtual Machine (HAVM) Clustered Shared Volume Live Migration Completed the science experiment !

22. Q&A Questions & Answers

23. Resources Required slide Failover Clustering Deployment Guide: http://technet.microsoft.com/en-us/library/dd197477.aspx MVUG (Malaysia Virtualization User Group) – Join us ! http://www.facebook.com/group.php?gid=216237734803 Lai’s Blog – TechInsight Penang , KL Slide, Virtualization related, etc http://www.ms4u.info laiys@redynamics.com

24. Related Content Planning and What’s New in Windows Server 2008 R2 SP1 for Virtualization Session Friday 24 Sept 2010 11.30 – 12.30 am IT Pro Track

25. Required slide WIN COOL PRIZES!!! Complete the True Techie and Crazy Communities Challenge and stand a chance to win… Look in your conference bags NOW!!

26. Required slide We value your feedback! Please remember to complete the overall conference evaluation form (in your bag) and return it to the Registration Counter on the last day in return for a Limited Edition Gift