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  • Share a vmdk between 2 VMs?

    Hi there:

    So we have a 2003 VM SQL server that we need to upgrade to 2012. SQL and the OS are on C; data on E. E is a separate vmdk file. Rather than bring the server down, my plan is to build a new Server to run concurrently and then point everything there when complete.

    So, my question is: While configuring the new server, can it share the E drive vmdk with the current server?

    VSphere 4.1, if that matters.

    Thanks!
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  • #2
    Re: Share a vmdk between 2 VMs?

    If by "share" you mean "access simultaneously" the answer is no. NTFS is not a clustered file system and an NTFS volume accessed by more than one system would quickly lead to data corruption.

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    • #3
      Re: Share a vmdk between 2 VMs?

      Yes, I did mean "access simultaneously." Well, too bad for me, then!

      Thanks!

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      • #4
        Re: Share a vmdk between 2 VMs?

        The way to do that would be to share the second drive on server1 and then access it through a shared drive on server2

        The only way to access the disk from both machines - is by using a Windows cluster - that is usually used for Application clusters.

        I think for your purpose you should use a network share.
        Maish
        ----------------------------------------------------------
        Technodrone|@maishsk|Author of VMware vSphere Design
        VMware vExpert 2013-2010,VCAP5-DCA/DCD,VCP
        MSCA 2000/2003, MCSE 2000/2003
        A proud husband and father of 3 girls
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        If you find the information useful please don't forget to give reputation points sigpic.

        Have a good one!!

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        • #5
          Re: Share a vmdk between 2 VMs?

          Anybody know anything about this? Looks like just what I'm looking for...

          https://communities.vmware.com/blogs...rtual-machines

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          • #6
            Re: Share a vmdk between 2 VMs?

            That allows you to share the disk at the VMFS/VMDK level. It does not allow you to share it at the NTFS level. Using that method and having both SQL Servers accessing the NTFS volume will surely destroy your databases.

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            • #7
              Re: Share a vmdk between 2 VMs?

              Joe, you're killing me with bad news! Better that than hosing everything.

              Thanks!

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              • #8
                Re: Share a vmdk between 2 VMs?

                Apologies.

                The only way to do it (AFAIK) is to use a clustered file system at the OS/Application level.

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                • #9
                  Re: Share a vmdk between 2 VMs?

                  LOL, no need to apologize. I'd rather have accurate bad news, than inaccurate good news. Thanks again!

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