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Windows Server 2012 Hyper-V Storage

Windows Server 2012 Hyper-V Storage. Carlos Mayol y Oscar Bonaque Premier Field Engineers (PFE’s) Microsoft. TechNet. Server Virtualization. Server Virtualization Hyper-V 2012. Storage Live Migration. Server Virtualization. Server Virtualization Hyper-V 2012.

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Windows Server 2012 Hyper-V Storage

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  1. Windows Server 2012 Hyper-V Storage Carlos Mayol y Oscar Bonaque Premier Field Engineers (PFE’s) Microsoft TechNet

  2. Server Virtualization Server Virtualization Hyper-V 2012

  3. Storage Live Migration Server Virtualization Server Virtualization Hyper-V 2012 LM in WS2012 has multiple aspects Failover Cluster Live Migration Storage Live Migration Shared nothing Live Migration Only supported when using VHD/VHDX/AVHD/AVHDX Pass-through disks are not supported VM data files can be moved to the same or different locations Live Storage migration without Virtual Machine Manager (VMM2012) Simultaneous Live storage migration (Customizable)

  4. Live Storage Migration Server Virtualization Hyper-V 2012 • Disk reads and writes are to the source virtual hard disk when the migration is initiated • While reads and writes are still to the source, the disk contents are copiedto the new destination • After initial copy completes, reads and writes are mirrored to both sourceand destination • When the disks are synchronized, the virtual machine is switched over to the destination • The source virtual disks are deleted Windows Server 2012 adds no downtime migration of VM Storage

  5. Server Virtualization DEMO: Storage Live Migration TechNet

  6. SMB Transparent FailoverScale – Out HA File Servers with CSV volumes shares SMB 3.0 Features SMB Direct NIC Adapter must support RDMA Requires Windows 8 Client or Windows Server 2012 SMB Multi-ChannelAggregates Network Bandwidth and provides fault tolerance Requires Windows 8 Client or Windows Server 2012 • VSS Provider for remote SharesShadow copies of application data on WS2012 file shares • WS 2012 Backup does not support this functionality

  7. SMB Multichannel Multiple Connections Per SMB Session SMB 3.0 Features

  8. Hyper-V over SMB FS Configurations Server Virtualization Requires a properly configured SMB file share on a WS2012 File Server and a virtual machine configured to use the file share to store its data files

  9. Server Virtualization DEMO: VM over SMB Share SMB 3.0

  10. New Virtual Hard Disk Format Server Virtualization Larger Block Sizes 32 MB for fixed and dynamic and 2 MB for differential disks 64TB VHDX Increased capacity, protection and alignment optimization Native 4K Disk Support Take advantage of enhanced density and reliability Metadata resiliency Logs updates to the VHDX metadata structures Data TrimmingUnmap support to release SAN space Can be managed using PowerShell

  11. Virtual Dynamic Disk (VHDX) Server Virtualization • Dynamic or Diff Virtual disk are now 1MB aligned, less IO’s means more performance • Now dynamic disk can be used on Production with similar performance

  12. Cmdlets Associated with VHDX-VHD Files Server Virtualization • Convert-VHD: Converts the format version and type of virtual hard disk file • Merge-VHD: Merges the virtual hard disks in a virtual hard disk chain • Mount-VHD: Mounts a virtual hard disk • Optimize-VHD: Optimizes space allocation in one or more dynamic or differencing virtual hard disks

  13. Server Virtualization DEMO: Exploring new VHDX TechNet

  14. Virtual Fiber Channel on VMs Server Virtualization Up to 4 VFC adapters Guest MPIO Eachadapterisassociatedwith a virtual SAN DSM HOST MPIO DSM SAN Switch Fabric • Each adapter connects with one or two WWNN\WWPN address pairs • HA VMs require two to support mobility scenarios in the cluster

  15. Merge Snapshots while VMs Running Server Virtualization Hyper-V 2008 R2 .avhd is not merged into the .vhd until VM shutdown Hyper-V 2012, changes in the .avhdx file are merged into the .vhdx file on the fly

  16. Server Virtualization DEMO: Live merging

  17. Offload Data Transfer (ODX) Server Virtualization • ODX • Data transfer between intelligent storage arrays • Token based • Benefits • Rapid virtual machine provisioning and migration • Faster transfers on large files • Latency minimization • Less CPU and network usage • Performance not limited by network throughput or server usage • Improved data center capacity and scale • Automation • Restrictions • Requires Storage vendor support • Bitlocker volumes not supported • Only applies to SCSI attached devices • Compressed or encrypted files not supported

  18. Questions?

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