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Duplicate and Orphaned Volumes on Windows Systems

shocko

Running 2019.04 but this is something I have noticed for a long time in the platform. I'm a long time user but dip in and out a lot. A fair deal of my systems show duplicate volumes as follows

shocko_0-1593114153819.png

The C: instance with 0 bytes and the drive simply do not exist. I have to run List resources against the system to select the real C: drive but thereafter I have two!

These systems are generally agent monitored. I'm wondering what causes this condition ? I can detect it with some custom SQL but I wish to avoid it. Might extending the C: drive cause this (why?!!!) 

  • 0

    We see this in a couple of situations:

    1. A physical drive has been replaced. The new drive has a different serial number, so if the node is rediscovered, Solarwinds treats the replacement drive as a new volume.

    2. A virtual disk is restored, expanded, or shrunk. If this is done by migrating to a new virtual disk and then reassigning the drive letter, the serial number of the virtual disk changes and Solarwinds treats the replacement drive as a new volume. 

    Either way, the only fix is to confirm that the volume has actually been replaced, then delete the one doesn't match the current serial number.

  • 0 in reply to m-milligan

    Hi, all virtual machines in my case. Only change I can see is that the VM disk was extended (while VM is online) and then in guest volume is extended. 

  • 0 in reply to shocko

    That's something we do a lot too. If that's the case I'm going to hope that there's a way to make it so that self-cleans somehow

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