none
Convert Dynamic Disks with Mirror to Basic ?

    Question

  • We have a Client with an SBS 2008 Server VM.  It looks like it had dynamic disks that were mirrored, and was virtualized.

    In Disk Management, there is a:
    Disk 0 (dynamic) Online 465 GB failed redundancy
    Disk 1 (dynamic) Foreign
    Missing (dynamic) Missing 465 GB failed redundancy

    We want to convert the disks to basic.  We are not able to backup the Server with Veeam until we do.

    What is the safe way to accomplish this?  Remove Mirror first?  Do we run that from Disk 0 or the Missing disk?

    Wednesday, January 03, 2018 10:50 PM

All replies

  • Should be able to remove the mirror since it is failed anyway. To convert dynamic to basic natively you'll need to delete the volume (and data).

     https://technet.microsoft.com/en-us/library/cc755238(v=ws.11).aspx

     

     



    Regards, Dave Patrick ....
    Microsoft Certified Professional
    Microsoft MVP [Windows Server] Datacenter Management

    Disclaimer: This posting is provided "AS IS" with no warranties or guarantees, and confers no rights.

    Wednesday, January 03, 2018 11:00 PM
  • Should be able to remove the mirror since it is failed anyway. To convert dynamic to basic natively you'll need to delete the volume (and data).

     https://technet.microsoft.com/en-us/library/cc755238(v=ws.11).aspx

    I wouldn't be able to use Hyper-V for the conversion, as in this article?

    http://www.hyper-v-mart.com/Howto/Convert_Hyper-V_Dynamic_Disk_to_Fixed_Disk.aspx

    Wednesday, January 03, 2018 11:10 PM
  • I'd backup before trying.

     

     



    Regards, Dave Patrick ....
    Microsoft Certified Professional
    Microsoft MVP [Windows Server] Datacenter Management

    Disclaimer: This posting is provided "AS IS" with no warranties or guarantees, and confers no rights.

    Wednesday, January 03, 2018 11:12 PM
  • I'd backup before trying.

    Right?  And our backup solution is Veeam, which will not work with dynamic disks. That is how I came across this issue.
    Wednesday, January 03, 2018 11:14 PM
  • Right?  And our backup solution is Veeam, which will not work with dynamic disks. That is how I came across this issue.

    This one might help.

    https://blogs.technet.microsoft.com/sbs/2008/11/03/introducing-sbs-2008-backup/

    but since SBS I would confirm over here.

    https://social.technet.microsoft.com/Forums/windowsserver/en-US/home?forum=smallbusinessserver

     

     



    Regards, Dave Patrick ....
    Microsoft Certified Professional
    Microsoft MVP [Windows Server] Datacenter Management

    Disclaimer: This posting is provided "AS IS" with no warranties or guarantees, and confers no rights.

    Wednesday, January 03, 2018 11:21 PM
  • If it were me I'd go a safer route, build a new VM and migrate over to it.

    https://technet.microsoft.com/en-us/library/cc664208%28v=ws.10%29.aspx?f=255&MSPPError=-2147217396

    my two cents

     

     



    Regards, Dave Patrick ....
    Microsoft Certified Professional
    Microsoft MVP [Windows Server] Datacenter Management

    Disclaimer: This posting is provided "AS IS" with no warranties or guarantees, and confers no rights.

    Wednesday, January 03, 2018 11:27 PM
  • If it were me I'd go a safer route, build a new VM and migrate over to it.

    That is in the works for the near future, but for now we need to get backup and restore functionality.
    Wednesday, January 03, 2018 11:32 PM
  • Then I'd give this a go to as first step. If you try the plan A (above) and something goes south you may end up with nothing.

    https://blogs.technet.microsoft.com/sbs/2008/11/03/introducing-sbs-2008-backup/

     

     

     



    Regards, Dave Patrick ....
    Microsoft Certified Professional
    Microsoft MVP [Windows Server] Datacenter Management

    Disclaimer: This posting is provided "AS IS" with no warranties or guarantees, and confers no rights.

    Wednesday, January 03, 2018 11:39 PM
  • Hi BCT-Tech,

    >We have a Client with an SBS 2008 Server VM.  It looks like it had dynamic disks that were mirrored, and was virtualized.

    Do you find the dynamic disks failed in the VM disk management, and the "dynamic disk" is based on the VM OS level instead of Hyper V host level.

    If it is based on the VM OS level, then I agree with Dave, we need to backup the disks before converting the disk from dynamic to fixed, in the progress, the data will be lost in the disk.

    While the method in the article you provided is used to convert dynamic disk based on Hyper V level, in this way, we may convert a dynamic disk mounted into the VM to be a fixed one, the fixed one is a copy of the dynamic disk, then we can mount the converted disk to the VM, the disk space reversed for the disk affects the Hyper V host instead of the VM OS.

    If you want to backup the VM, I would recommend to use "Export" option in the Hyper V host, you may also try if using Windows Server Backup inside the VM could work. It still not, you may mount an additional disk to the VM, then copy-paste the data from one disk to another. Then troubleshoot the problematic disk.

    Best Regards,

    Anne


    Please remember to mark the replies as answers if they help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.




    Thursday, January 04, 2018 8:21 AM
    Moderator
  • Hi BCT-Tech,

    Just to check if the above reply could be of help, if yes, you may mark useful reply as answer, if you have other concerns, welcome to feedback.

    Best Regards,

    Anne


    Please remember to mark the replies as answers if they help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Friday, January 05, 2018 6:51 AM
    Moderator