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Hyper-V Server Setup RRS feed

  • Question

  • I recently got a Dell 710 server with a perc 6/I, 128 GB RAM and 6 2 TB disks. The server came preloaded with 2008 but I intend to load Hyper-V 2012 server and use it as a host for various numbers of VM.

    Currently disks 0 and 1 are setup in a RAID 1 configuration and disks 2-5 are configured as RAID5.

    This does not seem like the best configuration in my mind for its intended use,

    What do you recommend?

    Thanks,

    Chris

    Wednesday, September 2, 2015 8:10 PM

Answers

  • To add to Tim's comments:

    If you are not interested in disk performance for your VMs, you are fine.

    If you have VMs that have a lot of disk IO, break that RAID 5 - RAID 5 is for space, not speed.

    What you have sounds fine for what you describe.  And I will leave you with this:

    You can always move the VMs from the RAID 5 to some other volume, re-partition the RAID 5, move the VMs back and move forward.

    One of the handy features of VMs.

    You are stuck with your initial storage layout.


    Brian Ehlert
    http://ITProctology.blogspot.com
    Learn. Apply. Repeat.


    • Edited by BrianEhMVP Wednesday, September 2, 2015 8:40 PM
    • Proposed as answer by Leo Han Thursday, September 3, 2015 9:36 AM
    • Marked as answer by BChris1975 Thursday, September 3, 2015 11:42 AM
    Wednesday, September 2, 2015 8:40 PM
  • Hi Chris,

    Agree with Tim and Brian.

    Here is the reference for different levels of RAID:
    https://en.wikipedia.org/wiki/RAID

    Here is the guide for exporting and importing VMs:
    http://blogs.msdn.com/b/virtual_pc_guy/archive/2008/08/26/hyper-v-export-import-part-1.aspx

    Best Regards,

    Leo


    Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact tnmff@microsoft.com.

    • Marked as answer by BChris1975 Thursday, September 3, 2015 11:42 AM
    Thursday, September 3, 2015 9:44 AM
  • However the hypervisor is installed, it is the host OS.

    And yes, it at least needs its own volume.

    Consider not having a dedicated volume for the host, you store VMs in the same place, some event happens with a VM and your volume is full, since your host is there as well, it falls over.

    Not just one VM is impacted, but the entire system.


    Brian Ehlert
    http://ITProctology.blogspot.com
    Learn. Apply. Repeat.


    • Edited by BrianEhMVP Thursday, September 3, 2015 1:14 PM
    • Marked as answer by BChris1975 Thursday, September 3, 2015 1:16 PM
    • Unmarked as answer by BChris1975 Thursday, September 3, 2015 3:14 PM
    • Marked as answer by BChris1975 Thursday, September 3, 2015 3:14 PM
    Thursday, September 3, 2015 1:13 PM

All replies

  • Since you don't really detail "its intended use", it's hard to say anything specific. Yes, it should work as a Hyper-V host. Yes, the storage should work for storage virtual hard disks for the VMs. You would achieve better performance by using RAID1 on disks 2-5 instead of RAID5, but you don't talk about what the IO characteristics of the VMs will be, so it might not make any difference.

    I would also consider going straight to 2012 R2 and not use 2012.  Or, if you really want fun, move to the Technology Preview 3 that just came out - http://www.microsoft.com/en-us/evalcenter/evaluate-windows-server-technical-preview, particularly if this is for a lab environment.


    . : | : . : | : . tim

    • Proposed as answer by BrianEhMVP Wednesday, September 2, 2015 8:40 PM
    • Marked as answer by BChris1975 Thursday, September 3, 2015 11:42 AM
    • Unmarked as answer by BChris1975 Thursday, September 3, 2015 3:14 PM
    Wednesday, September 2, 2015 8:19 PM
  • Tim,

    Thank you,

    The problem is I don't really know exactly what I will end up with, initially it was just to have a server for hosting other servers/clients that I use when I connect to clients. I seem to always run into problems with different VPN clients running side by side. For this purpose I might install a few win8.1 VMs. Last year I was looking at a backup solution for the machines I have on the network and I looked into SC Data protection mgr. This was before I know it required a domain controller etc. Therefore those plans were put back on the shelf.

    So yes, probably a lab setup, messing with domain controller, some sql server, I do have a separate machine for running DPM if I decide to go that route.

    Is there a way to install hypervisor on an external disk like an external SSD so I can use all 6 disks in some RAID configuration, or should I just have 1 virtual disk with all 6 logical drives and install hypervisor together with the VMs.

    I saw that tech preview 3 was out but I am not in the mood to be honest

    • Proposed as answer by BrianEhMVP Wednesday, September 2, 2015 8:40 PM
    • Unproposed as answer by BrianEhMVP Wednesday, September 2, 2015 8:40 PM
    Wednesday, September 2, 2015 8:36 PM
  • To add to Tim's comments:

    If you are not interested in disk performance for your VMs, you are fine.

    If you have VMs that have a lot of disk IO, break that RAID 5 - RAID 5 is for space, not speed.

    What you have sounds fine for what you describe.  And I will leave you with this:

    You can always move the VMs from the RAID 5 to some other volume, re-partition the RAID 5, move the VMs back and move forward.

    One of the handy features of VMs.

    You are stuck with your initial storage layout.


    Brian Ehlert
    http://ITProctology.blogspot.com
    Learn. Apply. Repeat.


    • Edited by BrianEhMVP Wednesday, September 2, 2015 8:40 PM
    • Proposed as answer by Leo Han Thursday, September 3, 2015 9:36 AM
    • Marked as answer by BChris1975 Thursday, September 3, 2015 11:42 AM
    Wednesday, September 2, 2015 8:40 PM
  • Hi Chris,

    Agree with Tim and Brian.

    Here is the reference for different levels of RAID:
    https://en.wikipedia.org/wiki/RAID

    Here is the guide for exporting and importing VMs:
    http://blogs.msdn.com/b/virtual_pc_guy/archive/2008/08/26/hyper-v-export-import-part-1.aspx

    Best Regards,

    Leo


    Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact tnmff@microsoft.com.

    • Marked as answer by BChris1975 Thursday, September 3, 2015 11:42 AM
    Thursday, September 3, 2015 9:44 AM
  • As far as I understand the 2012R2 server hyper-v is only the Hypervisor so I will not have a host OS. If this is the case should I change it so I only have one virtual disk raid 1, or raid 5 instead of two virtual disks. I don't really need a separate disk for the host OS in my setup do I?
    Thursday, September 3, 2015 11:42 AM
  • However the hypervisor is installed, it is the host OS.

    And yes, it at least needs its own volume.

    Consider not having a dedicated volume for the host, you store VMs in the same place, some event happens with a VM and your volume is full, since your host is there as well, it falls over.

    Not just one VM is impacted, but the entire system.


    Brian Ehlert
    http://ITProctology.blogspot.com
    Learn. Apply. Repeat.


    • Edited by BrianEhMVP Thursday, September 3, 2015 1:14 PM
    • Marked as answer by BChris1975 Thursday, September 3, 2015 1:16 PM
    • Unmarked as answer by BChris1975 Thursday, September 3, 2015 3:14 PM
    • Marked as answer by BChris1975 Thursday, September 3, 2015 3:14 PM
    Thursday, September 3, 2015 1:13 PM
  • So leave it the way it is and install hyper-v r2 on the Raid1 volume.

    Thanks all.

    Thursday, September 3, 2015 1:17 PM