Hyper-V High Availability and Live Migration


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  • This animated walkthrough covers the basic 10 steps to understand the basics of a clusterDeploy redundant hardware everywhere“Shared” storage accessible by all nodesClustered application writes data to shared storage so all nodes can assess itA registry hive containing current cluster configuration information is replicated to each nodeNodes monitor the health of other nodesIf a node fails, the health check will fail, and a failover will happenAnother node knows what the failed node was hosting through the registry and start that applicationThe application reads its saved data from the shared storageClient connects to app on new nodeClients may experience a slight interruption in service during failover but none during a live migration (of a VM)
  • VMM Availability Groups: http://technet.microsoft.com/en-us/library/jj628165.aspxAACN allows VMs to be forced to be distributed as much as possible, for example the 4 “blue” VMs will spread across the 4 nodes. The 6 “red” VMs will spread across the 4 nodes as optimally as possible, with 2 nodes having 2 VMs.If there are more VMs with the same AACN, there will be more than 1 VM per nodeConfigurable through PowerShell or Cluster.exeUseful to avoid having a single host take down a key piece of infrastructure which is running in VMs. If all the virtualized DCs are on the same host, then losing that host will take down the entire infrastructure, so it is optimal to spread them out so that losing a single host will not take down all DCs.
  • 10/30/2012
  • Animation on the following slide
  • Hyper-V High Availability and Live Migration

    1. 1. Microsoft Virtual Academy
    2. 2. First Half Second Half (01) Introduction to Microsoft Virtualization (05) Hyper-V Management (02) Hyper-V Infrastructure (06) Hyper-V High Availability and Live Migration (03) Hyper-V Networking (07) Integration with System Center 2012 Virtual Machine Manager (04) Hyper-V Storage (08) Integration with Other System Center 2012 Components ** MEAL BREAK **
    3. 3. Microsoft Virtual Academy
    4. 4. Disaster Recovery • Hyper-V Replica for Asynchronous Replication • CSV 2.0 Integration with Storage Arrays for Synchronous Replication Application/Service Failover • Non-Cluster Aware Apps: Hyper-V App Monitoring • VM Guest Cluster: iSCSI, Fiber Channel • VM Guest Teaming of SR-IOV NICs I/O Redundancy • Network Load Balancing & Failover via Windows NIC Teaming • Storage Multi-Path IO (MPIO) • Multi-Channel SMB Physical Node Redundancy • Live Migration for Planned Downtime • Failover Cluster for Unplanned Downtime Hardware Fault • Windows Hardware Error Architecture (WHEA) • Reliability, Availability, Serviceability (RAS)
    5. 5. Public Shared Storage VMs & Workloads VMs & Workloads
    6. 6. SAN Cluster
    7. 7. iSCSI or FC Cluster
    8. 8. CLUSTER CLUSTER iSCSI or FC Guest Cluster SAN SAN
    9. 9. . . . Scaleup Scale out ...
    10. 10. High Medium Low
    11. 11. CLUSTER SAN
    12. 12. Suspend-ClusterNode Resume-ClusterNode
    13. 13. Update Coordinator
    14. 14. According to Gartner about 1/3 companies use outside firms to dispose of PCs & Servers
    15. 15. HIPAA Breach: Stolen Hard Drives • March 2012: Large Medical Provider in Tennessee paying $1.5 million to the US Dept. Health & Human Services • Theft of 57 hard drives that contained protected health information (ePHI) for over 1 million individuals • Secured by: • Security Patrols • Biometric scanner • Keycard scanner • Magnetic locks • Keyed locks “71% of health care organizations have suffered at least one data breach within the last year” -Study by Veriphyr
    16. 16. What it delivers
    17. 17. • Don’t provide new features that preclude Live Migration. • I want to be able to securely move any part of a VM anywhere at anytime. No Limits. • No Downtime Servicing • SAN Upgrades/Migrations • When VMs migrate, move the historical data with the VM • Fully Leverage hardware to speed migrations
    18. 18. Concurrent Live Migrations: Multiple simultaneous LMs for a given source or target Live Migration Queuing: In-box tools queue & manage large numbers of VMs
    19. 19. May be additional incremental data copies until data on both nodes is essentially identical Memory content is copied to new server Live Migrate VHD SAN Enable-VMMigration, Move-VM
    20. 20. VHD SAN Client directed to new host Multiple live migrations can be performed either concurrently or as a queued request
    21. 21. Move-VMStorage
    22. 22. Source Device Destination Device VHD
    23. 23. Source Device Destination Device VHD VHD
    24. 24. Source Device Destination Device VHD VHD
    25. 25. Source Device Destination Device VHD VHD
    26. 26. Source Device Destination Device VHD Move-VMStorage "File Server 3" – DestinationStoragePath "K:File Server 3"
    27. 27. 45
    28. 28. Disaster Recovery Challenges • Cost • Complexity • Inflexibility • Initial Replication • Distance Requirements 46
    29. 29. Enable-VMReplication Set-VMReplicationServer
    30. 30. NASA Image: Hurricane Sandy
    31. 31. Replication Provider Cost Management Performance Hyper-V Replica Microsoft • Flexible Storage Options Available • Unlimited VM Replication included • VM Granularity • Open APIs provide extensibility, interoperability and prevent vendor lock-in • 5 minutes RPOs • Application Level Consistency • File Level Consistency Storage Based Replication NetApp, HP, Fujitsu, IBM, Hitachi, FalconStor, 3Par, EMC, LSI, Compellent, EqualLogic and more… • High end replicating storage • Additional replication software • LUN-VM Layout • Coordination with storage team • Synchronous Replication • High Data Volumes
    32. 32. Easy to Setup Works with your current hardware All you need is two connected servers running Windows Server 2012 No Guest Dependencies
    33. 33. ©2013 Microsoft Corporation. All rights reserved. Microsoft, Windows, Office, Azure, System Center, Dynamics and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.
    34. 34. Branch Office VHD Storage Live Migration: Moves VHDs from one disk to another, supports concurrent LMs Hyper-V Replica: Point-in-time replication of VHDs for disaster recovery VHD Network Live Migration: Moves VMs across the network, supports concurrent LMs “Shared Nothing” Live Migration: Moves VMs & VHDs across the network & SAN, supports concurrent LMs