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Windows Server 2012R2

Windows Server 2012R2. Hyper-V for SMB Hyper- Improvement . Ohad Saban CTO High Networks . Built in – for the standard server version and for Essentials Can Deliver Full and complete solution – Standard Server= Essentials + Terminal Flexible Management – clone, export… Ready for growth

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Windows Server 2012R2

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  1. Windows Server 2012R2 Hyper-V for SMB Hyper- Improvement Ohad Saban CTO High Networks

  2. Built in – for the standard server version and for Essentials • Can Deliver Full and complete solution – Standard Server= Essentials + Terminal • Flexible Management – clone, export… • Ready for growth • Built in DR Capability • Can implement Cluster for Redundancy • After 5 years and 3 Versions – Very mature and improved Hyper-V Environment for SMB

  3. New and updated features in server 2012 R2 Hyper-v

  4. A compression engine is built into Live Migration in Windows Server 2012 R2 Hyper-V. • The CPU in hosts is often underused. • Hyper-V will monitor the utilization of CPU resources on the host and throttle compression to prioritize guest. Compressed Live Migration

  5. Virtual hard disks of the VHDX format that are attached to the SCSI controllers of virtual machines can be resized without shutting down the virtual machine. VHDX files can be up- and down-sized. • Downsizing can only occur if there is unpartitioned space within the VHDX. • This feature supports both Windows and Linux guests. • Live Resizing of VHDX files will be huge value to those running mission critical workloads Live Resizing of VHDX

  6. New storage metrics for IOPS have been added to WS2012 R2. • With these metrics, you can determine the IOPS requirements of virtual machines and put caps on storage activity. • This will limit how much physical disk activity that virtual machines can create, and therefore limit the damage that activity spikes can cause to other virtual machines and their guest services. • One of the concerns with shared storage is the possibility of a race for storage throughput. Enabling Storage QoS will limit the damage that any virtual machine or tenant can do in a cloud. Storage Quality of Service (QoS)

  7. WS2012 R2 Hyper-V allows you to clone a running virtual machine. This will create an exact copy of the virtual machine that is stored in a saved state. This feature supports GenerationID. • That means you can use Live Virtual Machine Cloning to create Active Directory supported clones of a virtual domain controller that is not the PDC Emulator. • This feature will be useful for situations where you need to debug a production system or you want to perform tests, such as guest OS upgrades. Live Virtual Machine Cloning

  8. You can export a virtual machine with a checkpoint (formerly known as a snapshot) • You can also export a checkpoint of a virtual machine. VM Export Improvements

  9. You can configure up to 64 virtual machines to share a single VHDX file on some shared storage (such as CSV or SMB 3.0). • The VM sees the shared VHDX as a shared SAS disk with SCSI-3 persistent reservations. • This is for data volumes to create guest clusters, and not for shared boot volumes. • It works with down-level guest OSs, such as W2008 R2 with the WS2012 R2 Hyper-V Integration Components installed. • This feature is supported by Service Templates in VMM 2012 R2. • This will really simplify guest clustering, where virtual machines are used to create a highly available service at the application layer. Shared VHDX

  10. The default period for asynchronous replication of the Hyper-V Replica Log is every 5 minutes, but this can be changed to every 30 seconds or every 15 minutes. • This allows companies to choose the allowed recovery point objective (RPO) – the maximum allowed amount of data loss in time. • Hyper-V Replica can now be extended to a third site. • This is an A-B-C extension, and not an A-B/A-C extension. • The performance and scalability of Hyper-V Replica has been improved. Maintaining historical copies of virtual machines in the secondary site is costly (IOPS). • This has been reduced, so maintaining historical copies of your replica VMs will not punish your storage in the secondary site. Hyper-V ReplicaImprovements

  11. The criticized virtual machine connection of the past (VMConnect.exe process) is being replaced by a Remote Desktop experience that is built into the virtualization stack. • This has no dependency on the virtual machine’s networking. By default, this feature is disabled in WS2012 R2 Hyper-V and enabled in Windows 8.1 Client Hyper-V. • Things that Remote Desktop VM Connect allow you to do include: • Copy & paste text and images. • Copy files to/from the client desktop. • Do session-based USB redirection. • This means you might use a USB stick to copy files. It is not a USB dongle solution. VM Connect

  12. You can live migrate a virtual machine from WS2012 Hyper-V to WS2012 R2 Hyper-V. • This could eliminate downtime when deploying WS2012 R2 Hyper-V. For example, you can deploy a WS2012 R2 Hyper-V host/cluster alongside an existing WS2012 Hyper-V host/cluster. You can then live migrate the virtual machines from the older platform to the new platform with zero downtime to the availability of the services provided by the virtual machines. • Note that you cannot do a Live Migration downgrade from WS2012 R2 Hyper-V to WS2012 Hyper-V. It is a one-way upgrade path. Cross-Version Shared-Nothing Live Migration

  13. Automatic Activation of GuestVMs • If the parent partition is activated, and if it is running Windows Server 2012 R2, the Windows Server 2012 R2 guest partition is automatically activated without any intervention.

  14. Storage Tiering in Storage Spaces • Similar to the StorSimple appliance, Windows Server 2012 R2 can measure the “heat” of storage needs. “Hot” portions of files (block levels) are moved to Solid State Drives (SSDs) and cold data to slower magnetic drives. • This allows a favorable balance between capacity and performance. • Administrators can assign files to specific storage tiers. This could be a master “gold” vhd for a business customer.

  15. Deduplication of .VHDX • Performance gains of over 50% can be had by having process awareness of the common blocks that are referenced by deduplication.

  16. iSCSI Target now supports .VHDX • 64 Tb is the addressable space of Windows Server 2012, and a .VHDX can be 64 Tb in size. Now .VHDX virtual disks can be used with iSCSi in Windows Server 2012 R2.

  17. Live Migration can be configured to leverage SMB Direct (Remote Direct Memory Access, or RDMA) • on hosts that that NICs with support for this feature. • This feature will provide hardware offloaded accelerated copy of memory pages using SMB 3.0 NICs. • This can take advantage of SMB Multichannel to span multiple networks. • SMB Direct Live Migration provides the fastest way to live migrate virtual machines (not including storage) from one host to another. Memory speed will be the rare bottleneck on a host with PCI3 support and three RDMA NICs for Live Migration. SMB Direct Live Migration

  18. Dynamic Memory will be supported in Linux Guest OS’s on Windows Server 2012 R2 Hyper-V. • This will give much better memory optimization for Linux virtual machines, and it'll allow for much greater densities. Linux distributions with this built-in Linux Integration Services for Hyper-V HyH support are already available. • There will be support for online backup of Linux guest OSs. This is not Volume Shadow Copy Service (VSS) for Linux, and it does not give an application consistent backup. Instead, a file system consistent backup is created by freezing the file system. This feature does require an upgrade of any already deploy Linux Integration Services. Linux Guest OS Support Additions

  19. PowerShell 4.0 adds new cmdlets for: • VPN configuration • Start Screen customization • DISM • NAT • TPM • WMI • TCP/IP • Systems Management • Storage PowerShell 4.0

  20. System Center Release Alignment • This is the first time that Windows Server (and thus Hyper-V) is being developed with and released at or close to the same time as System Center. • There has been closer than ever before cooperation within Windows Server and System Center (WSSC). • That means you can deploy System Center immediately and follow it up with WS2012 R2 Hyper-V, without the long delays of the past.

  21. What’s New in Hyper-V in Windows Server 2012 R2

  22. What’s New in Hyper-V in Windows Server 2012 R2

  23. Windows Server 2012R2 • Hyper-V for SMB • Hyper- Improvement Thank You Ohad Saban CTO High Networks

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