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Library Sharing for TSM DR Server

Discussion in 'BCP / DRP' started by nabildz, May 6, 2010.

  1. nabildz

    nabildz New Member

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    Hi

    We are looking at preparing a DR TSM sever for our production TSM server as a cold/hot standby server by sharing the library between production and standby server and run the DR files on standby to test the DR plan

    is this the correct approach

    please advice

    Many Thanks
     
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  3. Eldoraan

    Eldoraan Senior Member

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    Doesn't sound viable. If you're going to bring the production TSM instance up on the DR host, then that recovered instance on DR host will need to control a library. You can't bring the same TSM instance up on both hosts and share a single library between them. It's a one or the other scenario with DR plan. Do you have a DR site seperate from production, or are you just running through exercise to do dry run of plan?
     
  4. nabildz

    nabildz New Member

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    Hi Eldoraan

    Many Thanks for your reply

    I dont tend to run both the instances at the same time, just doing DR test, so while doing it I will stop production for the time of testing

    Regards

    Nabil
     
  5. MAG

    MAG New Member

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    If your library is big enough and supports it then you could partition it into two logical libraries and use them concurrently.

    If that's not an option then for it to be a good test you'll need to unload all of your primary storage pool tapes from the library and replace with all of the copy pool tapes. Be caureful afterwards to audit the library and fix any tapes that might have gone missing from libvolumes.
     
  6. nabildz

    nabildz New Member

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    Ok thanks, but if I intend to move the TSM instance to the second library, do I still need to unload the Primary STG pool tapes??
     
  7. MAG

    MAG New Member

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    No, if you have two virtual libraries set up within the same physical library then you should have a separate range of tape slots for each. You wouldn't then need to remove the primary tapes from the logical side that's the primary - but this set up is very wastefull for library utilisation.

    In your situation I'd do the tape removal and re-loading for a one-off DR test at your main site (assuming the library is free for long enough) but for a good DR strategy you should have a separate library on a DR site somewhere.
     

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