ESXi

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  • 1.  Cannot expand datastore after expanding LUN size

    Posted Sep 04, 2012 05:41 PM

    Greetings:

    I have an interesting problem happening with my ESXi server.  I have expaneded a LUN from 1.5T to 3T, rescanned the SAN from the host itself (not from vCenter), yet ESXi still reports the LUN size as 1.5T and not expandable.

    SAN is an EMC VNX and Unisphere is indeed reporting the LUN size as 3T.  The VMFS on this LUN is at version 5.54.

    I have done refreshes and rescans from a single host and nothing changes with regards to the size of the LUN as reported within VMware.  I can't imagine this being a fabric issue since the underlying data is still available and working.

    Does anyone have any suggestions to try on this?

    Ron



  • 2.  RE: Cannot expand datastore after expanding LUN size

    Posted Sep 04, 2012 08:05 PM


  • 3.  RE: Cannot expand datastore after expanding LUN size
    Best Answer

    Posted Dec 03, 2012 06:07 PM

    Do you have RecoverPoint setup for this LUN? I just ran into the same problem that you described, and found this article. It worked for me.

    http://www.mikes.eu/index.php/how-to/254-how-to-resize-a-lun-that-is-already-replicated-by-emc-recoverpoint

    ~Tim



  • 4.  RE: Cannot expand datastore after expanding LUN size

    Posted Dec 11, 2012 03:31 PM

    rongageC -- just curious what you ended up doing here to get this to work properly?  Thanks for any info (I'm revieowing the storage guide pdf..)



  • 5.  RE: Cannot expand datastore after expanding LUN size

    Posted Dec 11, 2012 03:35 PM

    We had a ReplicationPoint appliance and SRM tied to the LUN in question.  For other reasons not related to this problem, we had to completely restart our configuration of the ReplicationPoint and SRM and as a consequence, remove the LUN from the two services.  This allowed VMware to see the expanded LUN size and also allowed us to expand the datastore to fill the LUN without issue.



  • 6.  RE: Cannot expand datastore after expanding LUN size

    Posted Dec 11, 2012 04:02 PM

    Thanks for the reply, removing the LUN and readding has been my work around as well.  Was hoping maybe there was an easier way..