1. Community Tip: Please Give Thanks to Those Sharing Their Knowledge.
    If you receive helpful answer on this forum, please show thanks to the poster by clicking "LIKE" link for the answer that you found helpful.
  2. Community Tip: Forum Rules (PLEASE CLICK HERE TO READ BEFORE POSTING)
    Click the link above to access ADSM.ORG Acceptable Use Policy and forum rules which should be observed when using this website. Violators may be banned from this website. This notice will disappear after you have made at least 3 posts.

Directory stgpool and server-side deduplication

Discussion in 'Backup / Archive Discussion' started by paulpl, Mar 16, 2017.

  1. paulpl

    paulpl ADSM.ORG Member

    Joined:
    Jan 8, 2009
    Messages:
    12
    Likes Received:
    0
    Location:
    Katowice, Poland
    Hi,

    I'm using TSM with directory stgpool, on client side I have some encrypted files that I would like not to dedup. Let's say I'm doing a lot of changes on them and backup them often, deduplication of this files load the server and dedup ratio is not satisfying (because of encryption). I know of course about exclude.dedup but this only work on client-side deduplication. Is there any way to tell server to leave this data alone and still using directory pool.
     
  2.  
  3. marclant

    marclant ADSM.ORG Moderator

    Joined:
    Jun 16, 2006
    Messages:
    2,285
    Likes Received:
    328
    Occupation:
    Accelerated Value Specialist for Spectrum Protect
    Location:
    Canada
    The only way is if you switch to client-side dedup for that node.
     
  4. paulpl

    paulpl ADSM.ORG Member

    Joined:
    Jan 8, 2009
    Messages:
    12
    Likes Received:
    0
    Location:
    Katowice, Poland
    So if client side dedup will be in use, inline dedup will not occure?
     
  5. paulpl

    paulpl ADSM.ORG Member

    Joined:
    Jan 8, 2009
    Messages:
    12
    Likes Received:
    0
    Location:
    Katowice, Poland
    Ok, I think that it's not possible to tell tsm server to not dedup specific objects. Inline dedup is in use even if file is excluded from client-dedup. So I need to use nondedup stgpool for this files.
     
  6. marclant

    marclant ADSM.ORG Moderator

    Joined:
    Jun 16, 2006
    Messages:
    2,285
    Likes Received:
    328
    Occupation:
    Accelerated Value Specialist for Spectrum Protect
    Location:
    Canada
    I think you are right, it just prevents client-side dedup, but doesn't prevent server-side.

    I'm not sure I'd worry about it though. They would be stored in non-deduped containers anyway:
    https://www.ibm.com/developerworks/...r/page/Directory-container storage pools FAQs

    It's up to you, but I'd leave it as-is. The simpler the better.
     

Share This Page