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Posts tagged Hyper-V Replica
While cleaning up my mailbox, I found a note to myself dating June 2011 about a few feature requests for the next version of Hyper-V and VMM. While talking to customers throughout the year, I often hear about and collect suggestions and product improvements which I can then pass on to the Hyper-V and System Center Product team. In retrospect most items on my list have become a reality in Windows Server 2012 and much, much more!
Online VHD growth and shrink has not yet been realized (although a 64TB dynamic disk supporting unmap pretty much covers all you can desire).
Perhaps the last item on the list is only partly covered by Hyper-V Replica but needs some additional automation or services to make this a complete Recovery solution that could make it even better than RSM. As we know Microsoft is on the right path and a flood of companies are getting really interested in Windows Server 2012 Hyper-V and System Center 2012 SP1.
Thanks Hyper-V and System Center product teams for listening.
We all know that PowerShell is a very important component of Windows Server 8. You’ll need PowerShell to build, administer and troubleshoot your environment. This is also the case for Hyper-V features.
Microsoft published a list of PowerShell CMDLETS for managing Hyper-V Replicas. This list may not be wanting on Hyper-V.nu so here it is:
If you are a server, storage or network vendor, please also read the last section.
Now that the Windows Server 8 beta can be expected any time now – but promised before the last week of February 2012 – it might be a good idea to start looking at several of the groundbreaking storage related technologies that could turn up in Windows 8. I stress the word could because we must always be careful since functionality shown in Pre-RTM builds is never guaranteed to be in the GA release.
I am planning to write a couple of blogs about Windows 8 Storage which in many cases is related to the new version of Hyper-V.
If you are running a SAN but also if your company simply can’t afford a SAN, chances are that you will see significant performance increases when reading, writing, copying, moving data with Windows Server 8. In-box storage manageability with PowerShell will strongly contribute to making Windows 8 Storage one of the major pillars of the Microsoft Private Cloud Fabric. As I have looked at it so far, storage is handled extremely well in Windows Server 8. Mind you this is only what I have determined based on what I have heard and seen on \\build and have personally tested since September 2011 with the Windows 8 Developer Preview.
This edition is not at all intended to be stable and testing with de Developer Preview is a true challenge. As a preparation for the Hyper-V.nu event with several sessions on Windows Server 8, I wanted to try out and show some unique new functionality for moving living Hyper-V guests between different types of storage. I had time for building up the pre-requisites and was able to successfully show a Live Storage Migration of a guest between two SMB2 shares on a ScaleOut File Cluster. But there were several other Live Storage moves that I tested but also want to explore further:
Live Storage Migrate a guest from USB disk to a local disk
Live Storage Migrate a guest from a local disk to a new Windows 8 Pool and Spaces virtual disk
Live Storage Migrate a guest from local disk to shared storage on a single host
Live Storage Migrate a guest from a shared disk on a single host to a shared disk on a Windows 8 Hyper-V cluster
Live Storage Migrate a guest from a shared disk on a cluster to a CSV version 2 volume on the same cluster
Live Storage Migrate a guest from any location to an SMB2 file share on a ScaleOut Fileserver with Continuously Available Shares
Live Storage Migrate a guest between two SMB2 file shares on the same Windows 8 Hyper-V cluster while the ScaleOut Fileserver cluster is moved between nodes.
Live Storage Migrate a guest between an SMB2 file share used by one Windows 8 Hyper-V cluster to another Hyper-V cluster or even to another SMB2 file share on another server.
Am I now running out of options? On the contrary, I have only just started!
Update October 21st, 2011 (see bottom)
Let’s assume the following scenario:
- You have a Hyper-V R2 SP1 cluster that has three or more nodes
- You are using Cluster Shared Volumes
- You learnt about the Cluster Validation problem that was solved by KB2531907 back in May 2011, which prevented the “Failed to get SCSI page 83h VPD descriptors for cluster disk <number> from node <node name> status 2” error after running the Validate SCSI Vital Product Data. It also solved the “Disk with identifier <value> has a Persistent Reservation on it. The disk might be part of some other cluster. Removing the disk from validation set” error when running the List Potential Cluster Disks test. The hotfix resolves an issue in which the storage test incorrectly runs on disks that are online and not in the Available Storage group. The problem can also be caused by other issues such as storage problems or an incorrect configuration which means you have to check your storage configuration and check related events on your Hyper-V hosts.
- You want to add more capacity and add a new Hyper-V host.