Data Archiver on File server

Last post 08-25-2010, 9:33 PM by Krish. 6 replies.
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  • Data Archiver on File server
    Posted: 08-18-2010, 12:05 AM


    I'm Testing Data Archiver for File server. I have Archived a Folder with file size & accessed time as the rule. Folder size is 20Gb & it has Archived 10Gb in the first archive job run & every week it's archving 1GB of Data.

    I have noticed that on the file share where this folder resides, commvault has created a folder called "gxhsmcache" & put the stubs & complete directory structure of the folder I have Archived.

    Stub folder is growing & it's 8Gb now. Could someone tell me what's this gxshmcache folder & why the stubs folder is here & when I'm trying to freeup space on file server why the stub folder is so big & growing???




  • Re: Data Archiver on File server
    Posted: 08-18-2010, 9:07 AM

    Hi Krish,

    See definition below. 

    Also, you can turn off the creation of stubs in the cache (it will still be used as a temp location to open a recovered stub) by setting the registry key (also listed below).  If this key is set to no the restubbing feature will not be available.

    GXHSMCACHE cache Folder

    For Local File Systems and Celerra instances, a hidden folder (GXHSMCACHE) is created on each volume you are monitoring for stub recovery. The purpose of this folder is to provide a temporary location to open a recovered stub file. When the stub recovery is completed, the file will be deleted from the hidden folder.

     Registry Location:

    Computer\HKEY_LOCAL_MACHINE\SOFTWARE\CommVault Systems\Galaxy\Instancexxx\WinFSDataMigrator


     Description: Maintain stubs in cache location for quick re-migration of stubs


    Craig T.
  • Re: Data Archiver on File server
    Posted: 08-25-2010, 12:08 AM

    Hi Craig,

    Thanks for the info.

    I did leave this cache as enabled.

    It just shows a 8 GB(virtual size) but it's actiually it's 120 MB.

    Could you tell me what happens if I disable this cache & delete the whole GXHSMCACHE cache Folder ??



  • Re: Data Archiver on File server
    Posted: 08-25-2010, 12:45 AM

    If you delete the cache folder, the next time a recall occurs it will recreate the folder and stage the file there until its moved to its original location. 

  • Re: Data Archiver on File server
    Posted: 08-25-2010, 1:46 AM

    Will it recreate the folder even if I disable cache from Registry ??

  • Re: Data Archiver on File server
    Posted: 08-25-2010, 9:20 PM

    The gxhsmcache is dual purpose:

    1.  A temporary repository for stub based recovery

    2.  If stub cache is enabled, it will hold a copy of the stub, so CV can restub the data during the archive scan phase, to prevent the file from being rearchived in the event the file was recalled and not changed.

    To answer your question, if the folder is deleted, and stub cache is off, the folder will still be created, as the restore process will need to temporarily put the real file in there before moving it into the original location. 

  • Re: Data Archiver on File server
    Posted: 08-25-2010, 9:33 PM

    Thanks mate,

    that explains everything.



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