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DPM backups to Tape: Does the storage pool limit apply? RRS feed

  • Question

  • Hello

    We have a customer that's currently doing only short-term backups to disk with DPM 2012 R2. They're getting the replica size limit error:

    The question is this: if we add a tape library and they do straight backup-to-tape, would these backups count towards the overall replica size?

    In other words, does the Storage Pool limit affect only disk backups or does it affect all backups regardless whether they are disk- or tape-based?

    Thanks!

     


    Tuesday, January 24, 2017 12:27 PM

Answers

  • Hi,

    The storage pool limit only applies to disk-to-disk protection not disk-to-tape.   Disk to tape protection does not require any DPM storage pool so the warning would not apply. 


    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.


    Tuesday, January 24, 2017 11:24 PM
    Moderator
  • Hi,

    Simply put, the validation error will only occur when adding a new data source to a protection group that uses disk based protection.  If the protection group only has (short or long term) tape protection then that error will not occur.


    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.


    Wednesday, January 25, 2017 6:59 PM
    Moderator

All replies

  • Hi,

    The storage pool limit only applies to disk-to-disk protection not disk-to-tape.   Disk to tape protection does not require any DPM storage pool so the warning would not apply. 


    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.


    Tuesday, January 24, 2017 11:24 PM
    Moderator
  • Thank you for the prompt reply Mike. So it's not just for direct backups to Tape that the warning does not apply, it's also for backups to disk to tape?

    Wednesday, January 25, 2017 9:25 AM
  • Hi,

    Simply put, the validation error will only occur when adding a new data source to a protection group that uses disk based protection.  If the protection group only has (short or long term) tape protection then that error will not occur.


    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.


    Wednesday, January 25, 2017 6:59 PM
    Moderator