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TSM disaster recovery with protectier vtl

Discussion in 'TSM Server' started by Houssam, Dec 20, 2016.

  1. Houssam

    Houssam ADSM.ORG Member

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    hello,
    i have 2 sites with vtl replication (ts7620), in the site n°1 i have a tsm server 7.x.

    i want to know how vtl replication and tsm work together in order to have a disaster recovery plan, i think that we have to choose between tsm replication and vtl replication, and not both.
     
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  3. marclant

    marclant ADSM.ORG Moderator

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    Correct.

    If you do VTL replication, you would need HADR to replicate the DB changes to the DR server. Or have an offline DR server that you would restore the DB too.

    Or use TSM replication and deduplication, but your storage would need to be disk, not VTL.
     
  4. Houssam

    Houssam ADSM.ORG Member

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    dear marclant,

    i do have an offline server to restore a db make a copy of volhist and devconf.
    my question is :
    if i have a vtl on primary site named ts3500-prim with 10 cartridges labaled primsite001 ... primsite010, and i have a vtl ont secondary site named ts3500-sec with 10 cartriges.
    do i have to configure cartriges with the same label on the secondary site ? if so, do vtl replicate cartridge primsite001 of primary site with primsite001 cartridge of secondary site ?
    how tsm knows about replicated backups
     
  5. marclant

    marclant ADSM.ORG Moderator

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    They have to be the same name, TSM will look for known tapes labels (real or virtual).
    I would assume so.
    It doesn't. It knows about all the volumes it has used, if those volumes are replicated, the DR server can access those volumes in the DR VTL. TSM has no clue if these are the original volumes or replicated volumes.
     
  6. chavdar.cholev

    chavdar.cholev ADSM.ORG Member

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    If possible,
    I would define second VTL on protecTIER @site2 and present to site 1 and do the db backups there ....
    Also if servers are lunux/unix ... NFS from site 2 , export NFS and mount to TSM in site1 and do the db backups, volhist and devconfig files ...
     

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