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Unregister/remove files from "VSS repository"

Discussion in 'Backup / Archive Discussion' started by btech, Nov 1, 2012.

  1. btech

    btech New Member

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    Hi,

    Is there a way to unregister/remove a file from the "VSS repository". TSM is unable to backup a file that is not available (remote location, TSM is running as Local System), which shows up as a warning in the backup report.
    I know of diskshadow, used that utility to show the list of files that will be backed up as a part of VSS. But that utility doesn't seem to provide any way to unregister/remove files. Need to remove the faulting file from that list.
    How do files end up on that list anyway?

    Thanks in advance!
    // B //
     
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  3. moon-buddy

    moon-buddy Moderator

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    You can try from the node itself:

    - Enter CLI: dsmc
    - 'help delete backup' for details.
     
  4. chad_small

    chad_small Moderator

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    This happened to me and we created a dummy file for the one missing. It's a known issue and if you search the error MS states the easiest way to fix it is to create a dummy file in the location specified. So open up notepad and save a small text file under the same name and location.
     
  5. btech

    btech New Member

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    Thank you for your answer! I don't want to delete a file from a backup set. Actually, the file never ends up on backup. When TSM performs it's VSS backup, it throws an error message in dsmerror.log.

    2012-11-02 00:39:33 ANS4251W System Writer file '\\localserver\c$\Windows\system32\remoteserver\visma$\visma\business\visma.businesshost.exe': not found.

    Localserver is the name of the local server and remote server is a... remote server (doesn't the path look wierd?)

    Performing a "list writers detailed" gives me the following output (i have trimmed it to contain only the necessary part, normally the list contain looots of files)

    * WRITER "System Writer"
    - Writer ID = {e8132975-6f93-4464-a53e-1050253ae220}
    - Writer instance ID = {2c5847f1-f9fa-40ad-bd57-4d7e374d7f4e}
    - Supports restore events = FALSE
    - Writer restore conditions = VSS_WRE_NEVER
    - Restore method = VSS_RME_RESTORE_AT_REBOOT_IF_CANNOT_REPLACE
    - Requires reboot after restore = TRUE
    - Excluded files:
    + Component "System Writer:\System Files"
    - Name: System Files
    - Logical path:
    - Full path: \System Files
    - Caption: System Files
    - Type: VSS_CT_FILEGROUP [2]
    - Is selectable: FALSE
    - Is top level: TRUE
    - Notify on backup complete: FALSE
    - Components:

    - File List: Path = \\srv314\visma$\visma\business, Filespec = visma.businesshost.exe

    What I want to accomplish is to remove the file from the VSS writer "System Writer" list of files. So far I haven't found out on how to do this :/
     
  6. btech

    btech New Member

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    Thank you for your reply! The file isn't actually missing, the path is on a remote computer, not sure if it's possible to trick TSM or the OS that the file is local, using a dummy file. As TSM is running under the LocalSystem account, there is no way for TSM to access the remote file as LocalSystem (security). Sure, I could change the user that the TSM services are running as, but I don't need the remote file, so it seems like the wrong approach. I would like to fix the problem at the source. I am not familiar on how VSS works in detail, but I figure that previous to a VSS backup, TSM will ask the OS for files that will be included in a VSS backup (it appears to be different sets for different VSS writers). What I really want to know is how to get that file off the list of VSS files for a specific VSS writer.
     
  7. balkark

    balkark New Member

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    Try adding these lines to your opt file and see if the error goes away.

    SNAPSHOTPROVIDERFS VSS
    SNAPSHOTPROVIDERIMAGE VSS
    SKIPMISSINGSYSWFILES YES
     
  8. BrianV

    BrianV New Member

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    Couldn't you just add an EXCLUDE for the specific files to the dsm.opt file if you know you don't want that file backed up?
     
: vss

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