VSS Snaps are not delete after Vm Backup

Last post 03-13-2019, 9:08 AM by Liam. 10 replies.
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  • VSS Snaps are not delete after Vm Backup
    Posted: 03-08-2019, 4:40 AM

    Hi All,

     

    we are looking for maybe an bug in SP14.

     

    We see in some enviroments where we have problems with vss snapshots. We have vmware and also nutanix as hypervisor. the vss snapshot inside of the vm will not delete after vsa backup. This happens after update to SP14

     

    So maybe you see this problem too and can give us some hints.

     

    thanks

  • Re: VSS Snaps are not delete after Vm Backup
    Posted: 03-08-2019, 4:57 AM

    I think we have the same issue.

    I have to free space by manually enabling shadow copies and disabling them

  • Re: VSS Snaps are not delete after Vm Backup
    Posted: 03-08-2019, 5:06 AM

    intresting. on different Windows OS Servers ? Which Hypervisor do you have ?

  • Re: VSS Snaps are not delete after Vm Backup
    Posted: 03-08-2019, 5:18 AM

    vmware 6.7

    several OS: 2008r2,2012,2012r2

  • Re: VSS Snaps are not delete after Vm Backup
    Posted: 03-08-2019, 5:22 AM

    how do you identify that you have hanging vss snapshots.

  • Re: VSS Snaps are not delete after Vm Backup
    Posted: 03-08-2019, 5:27 AM

    I have noticed that on many VMs (backup with quiesce enabled), after sp14 hpk5

    I have a lot of space occupied in "System Volume Information"

     

    I am not sure about the cause, but this is the only relevant change in env before we noticed this issue

  • Re: VSS Snaps are not delete after Vm Backup
    Posted: 03-11-2019, 2:25 PM
    • Aplynx is not online. Last active: 05-13-2019, 12:56 PM Liam
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    Locally on a machine? Are you running FS backups as well? If you are doing backups through the hypervisor, CommVault only requests snapshot creation and consolidation through the API so there is no local control on the guest machines. 

    Hot fix 1977 addresses an issue with system state not deleting VSS which is rectified going forward, you would just need to clear out the previous snapshots. 

    You can manually delete the VSS Shadows on the system, using the following steps:

    1. Open Admin CMD prompt
    2. Type 'DiskShadow' to enter the VSS administration prompt
    3. Run the command 'delete shadows all'

  • Re: VSS Snaps are not delete after Vm Backup
    Posted: 03-12-2019, 7:24 AM

    Hi,

    Check out this post:

    http://forum.commvault.com/forums/thread/60308.aspx

    HPK6 fixed our problem.

  • Re: VSS Snaps are not delete after Vm Backup
    Posted: 03-12-2019, 10:20 PM

    I have had to go thru all of my servers and enable and then disable VSS even tho' all of it was disabled.

    I found actually going into the settings and ticking the limit button and reducing the limit and then enabling and disabling shadow copy cleared up heaps and heaps of space on quite a few of the servers. Only happening on servers that I use CV to back them up.

    This should have already come out as a big huge warning to all of us CommVault users, very disappointing customer support.

  • Re: VSS Snaps are not delete after Vm Backup
    Posted: 03-12-2019, 10:21 PM

    I have had to go thru all of my servers and enable and then disable shadow copy even tho' all of it was disabled.

    I found actually going into the settings and ticking the limit button and reducing the limit and then enabling and disabling shadow copy cleared up heaps and heaps of space on quite a few of the servers. Only happening on servers that I use CV to back them up.

    This should have already come out as a big huge warning to all of us CommVault users, very disappointing customer support.

  • Re: VSS Snaps are not delete after Vm Backup
    Posted: 03-13-2019, 9:08 AM
    • Aplynx is not online. Last active: 05-13-2019, 12:56 PM Liam
    • Top 10 Contributor
    • Joined on 05-04-2010
    • New Jersey
    • Master
    • Points 1,586

    Enabling and disabling shadow copies where it was already disabled means you are likely talking about the local schedude that is used to run native VSS snapshots through the OS outside of CommVault. This would have no bearing on the snaphsots CommVault requests. 

    CommVault does not set a limit on the VSS snapshots, this is already established by the OS, but the procedure you are describing is another way to quickly remove any existing snapshots. The commands I mentioned earlier would do the same. 

    Hot fix 1977 addresses the issue where snapshots are not being deleted after the System State is done. As this can only be addressed going forward after the installation, you would need to manually clean up the previously orphaned snapshots via command line or VSS GUI.

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