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Windows 2008 R2 how to remove a disk from Failover Cluster Manager and make available again in Disk Management?

Answered Windows 2008 R2 how to remove a disk from Failover Cluster Manager and make available again in Disk Management?

  • Wednesday, May 23, 2012 1:14 AM
     
     
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    I have some iSCSI volumes that are setup as Cluster Shared Volumes between 2x Windows 2008 R2 servers. Some of the volumes are no longer required and I want to reclaim the space. What is the proper procedure for removing this volumes from Failover Cluster Manager?

    I tried "Remove from Cluster Shared Volumes" and Deleting from the Storage pane in Failover Cluster Manager. However, when I go to Disk Management in Server Manager, the iSCSI volume is still Reserved, and I can't tell for sure which iSCSI connection belongs to which Disk, and which Cluster volume, because some of them are the same size, and there doesn't seem to be identifying names.

    So what is the proper procedure, so I can remove the correct volume/iSCSI connection (preferrably without having to restart the server?

    Thanks!

     

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  • Wednesday, May 23, 2012 5:30 AM
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    Hi,

    You can lookup the disk ID and then look it up in the iscsi target to find out what target it is.

    and with this id you can unpresent the disk.

    To make this easy the next time I use always a marker on my target id. 

    Greetings, Robert Smit [MVP] http://robertsmit.wordpress.com/ “Please click "Vote As Helpful" if it is helpful for you and Proposed As Answer”

     
  • Wednesday, May 23, 2012 5:33 AM
     
     
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    Hi,

    You can lookup the disk ID and then look it up in the iscsi target to find out what target it is.

    and with this id you can unpresent the disk.

    To make this easy the next time I use always a marker on my target id. 

    Greetings, Robert Smit [MVP] http://robertsmit.wordpress.com/ “Please click "Vote As Helpful" if it is helpful for you and Proposed As Answer”

    How do you lookup the disk ID? And what do you mean by a "marker on my target id"?

    Please pardon my ignorance!

     
  • Wednesday, May 23, 2012 5:34 AM
     
     
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    BTW maybe I needed to be more patient.. I checked again later and I think the volume I deleted from FCM went "Offline" eventually, and no longer reserved..
    • Edited by abcj Sunday, May 27, 2012 10:19 PM
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  • Thursday, May 24, 2012 2:23 PM
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    Hi,

    Please check the following link.

    Need to determine mapping between cluster shared volumes and SAN LUNS
    http://en.community.dell.com/support-forums/storage/f/3412/t/19381099.aspx

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  • Sunday, May 27, 2012 10:33 PM
     
     
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    Need to determine mapping between cluster shared volumes and SAN LUNS
    http://en.community.dell.com/support-forums/storage/f/3412/t/19381099.aspx


    In my case, the LUN ID always gave 0. However, DISKPART and Powershell on FailoverClusters was able to match up Disk Signatures. Thanks!