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Dual DPM server single Tape Library RRS feed

  • Question

  • We currently have a single DPM server (2012R2 RU5) with 76TB of disk space connected to a tape library. As we are getting close to the 80TB limit we want to deploy another DPM server and have questions around it.

    1) Can we move the local DPM DB to a shared SQL server and when we deploy the 2nd DPM server it will use the same DB?

    2) Can we share our tape library between the two DPM servers?  We have a Dell TL4000 fiber channel dual drive system. 

    - we perform disk backups on the weekend and we want to setup where both DPM servers have access to and can write to tape.  Possibly each DPM servers controls a single a single  drive but the DPM database needs to be aware of which DPM server the backup occurs from or can restore to.

    Other issues I'm not thinking of?

    Thanks

    Thursday, April 23, 2015 11:08 PM

Answers

  • Hi

    as you can read here, SCDPM is Limit to 80TB Replica and 40 TB of Recovery Point size, so the Limit is 120 TB

    https://technet.microsoft.com/en-us/library/hh758179.aspx?f=255&MSPPError=-2147217396

    1) Each SCDPM Installation Needs a seperate Database

    2) you can split your library between 2 SCDPM, but thats an Library, FC configuration, not a SCDPM.

    Keep in mind, if you deploy 2 SCDPM Servers, they are 2 seperate installations and 2 seperate Configuration. If you backup a drive with SCDPM1 you cannot back it up with SCDPM 2


    Seidl Michael | http://www.techguy.at | twitter.com/techguyat | facebook.com/techguyat | youtube.com/techguyat

    Friday, April 24, 2015 4:59 AM
  • HI,

    No need to move the DPMDB.  If you want multiple DPM servers to share a single tape library you can set up tape library sharing using this TechNet article.


    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. Regards, Mike J. [MSFT] This posting is provided "AS IS" with no warranties, and confers no rights.

    • Marked as answer by DDNDAVID Monday, April 27, 2015 9:50 PM
    Friday, April 24, 2015 5:48 PM
    Moderator
  • I would also recommend TechNet article shared by Mike Jacquet.

    Pre-requisites have been nicely explained in the blog post

    Some of the trouble shooting steps which might be required are explained nicely in this article

    -----------------------------------------

    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.



    Monday, April 27, 2015 6:40 AM

All replies

  • Hi

    as you can read here, SCDPM is Limit to 80TB Replica and 40 TB of Recovery Point size, so the Limit is 120 TB

    https://technet.microsoft.com/en-us/library/hh758179.aspx?f=255&MSPPError=-2147217396

    1) Each SCDPM Installation Needs a seperate Database

    2) you can split your library between 2 SCDPM, but thats an Library, FC configuration, not a SCDPM.

    Keep in mind, if you deploy 2 SCDPM Servers, they are 2 seperate installations and 2 seperate Configuration. If you backup a drive with SCDPM1 you cannot back it up with SCDPM 2


    Seidl Michael | http://www.techguy.at | twitter.com/techguyat | facebook.com/techguyat | youtube.com/techguyat

    Friday, April 24, 2015 4:59 AM
  • HI,

    No need to move the DPMDB.  If you want multiple DPM servers to share a single tape library you can set up tape library sharing using this TechNet article.


    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. Regards, Mike J. [MSFT] This posting is provided "AS IS" with no warranties, and confers no rights.

    • Marked as answer by DDNDAVID Monday, April 27, 2015 9:50 PM
    Friday, April 24, 2015 5:48 PM
    Moderator
  • I would also recommend TechNet article shared by Mike Jacquet.

    Pre-requisites have been nicely explained in the blog post

    Some of the trouble shooting steps which might be required are explained nicely in this article

    -----------------------------------------

    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.



    Monday, April 27, 2015 6:40 AM