locked
Test-SRTopology fails with "volume x: cannot be found" RRS feed

  • Question

  • I'm trying to figure out if/how storage replication works on our server configurations:

    Test-SRTopology -SourceComputerName SRV13 -SourceVolumeName S: -SourceLogVolumeName L: -DestinationComputerName SRV14 -DestinationVolumeName T: -DestinationLogVolumeName M: -DurationInMinutes 15 -ResultPath c:\tmp

    this fails with "Test-SRTopology : The specified volume S: cannot be found on computer SRV13".

    While 13 may be an unlucky number, I doubt that's the problem here?  ;-)

    I'm absolutely sure S: does exist on SRV13. I formatted NTFS and ReFS - no effect. I used a disk label and left it empty - no effect. I'm domain admin and local admin on source and target server and I do have full access on the S: drive.

    but S: is a virtual disk in a storagepool created using storagespaces on FC attached SAN devices. from what I read, this could/should work? but maybe not? not yet?

    is this a bug or a feature? any ideas or suggestions? TIA

    NB. I'm fully aware that SAN storage might not the most reasonable nor the most cost effective way to implement SR. but it's all I have for testing right now ...

    

    Wednesday, June 15, 2016 10:42 AM

Answers

All replies

  • Hi Cornel Kaufmann,

    Thanks for your post.

    Please refer to the article below to make you meet all the Prerequisites

    https://technet.microsoft.com/en-sg/library/mt126103.aspx

    And you could also check the article below to do the troubleshooting.

    Storage Replica: Known Issues

    https://technet.microsoft.com/en-sg/library/mt126101.aspx

    Besides, please add the -verbose switch at the end to see if that provides more information when the command fails importing the error.

    Best Regards,

    Mary


    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 Subscriber Support, contact tnmff@microsoft.com.

    Thursday, June 16, 2016 8:10 AM
  • hi Mary,

    thanks a lot for the reply and the hints/URLs.

    I used the -verbose switch before and tried it again: no difference, I can't get any more details out of the cmdlet.

    The first URL was what I was working with when I got stuck at step 9. It does document support for FC SAN storage, so it's good news for me. But it's only about storage replication, not storage spaces (storage pools, virtual disks etc) and I decided to try without that.

    this gets me around my initial error. But after removing storage spaces from my tests, I get into a maze of confusing and somewhat conflicting error messages: Test-SRTopology tells me to user clustered disks and I read "Ensure that each set server can see that site’s storage enclosures only". So I can easily get half of my disks online while the other half stays offline ("clustered storage is not connected to the node").

    I guess this could be my lack of understanding as much as a bug or a feature? I'm not even sure if a GUI or a powershell configuration could or should work? do I use disk manager, server manager or cluster manager to configure storage?

    For now I give up and wait for a newer/better version of the OS with consistent documentation to try this - today it's too confusing and time consuming to find my way thru this maze...

    thanks again

    cornel

    Monday, June 20, 2016 8:10 AM
  • Hi cornel,

    Thanks for your reply.

    >I guess this could be my lack of understanding as much as a bug or a feature?

    Not so exactly sure, after all Windows Server 2016 hasn't been released officially. There do exist bug or the behavior unexcepted. And since there is few information about this. The environment limited we couldn't do the test for you.

    Maybe we could wait for a period of time and install the released updates to have a check.

    And you could also check the information below for now about storage replica.

    Appreciate your support and understanding.

    https://technet.microsoft.com/en-sg/library/dn765475.aspx#BKMK_SR

    https://technet.microsoft.com/en-sg/library/mt126104.aspxhttps://blogs.technet.microsoft.com/filecab/2015/06/02/the-storage-replica-video-series-plan-your-replication-using-test-srtopology-in-windows-server-2016-technical-preview-2/

    Best Regards,

    Mary


    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 Subscriber Support, contact tnmff@microsoft.com.

    • Proposed as answer by Mary Dong Thursday, June 30, 2016 8:59 AM
    • Marked as answer by Mary Dong Tuesday, July 5, 2016 4:24 AM
    Monday, June 20, 2016 8:35 AM