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DPM 2010 backups to multiple D2D systems RRS feed

  • Question

  • Can DPM 2010 backup data from a single storage pool to two different D2D virtual tape libraries simultaneously (streaming)?
    Friday, August 12, 2011 3:32 PM

Answers

  • Hi,

    You can only assign one tape library per protection group for backups, so if you want to use two tape libraries, assign one tape library to one or more protection groups and the other tape library to a different set of protection groups.  Then enable tape co-location to help utilize the tapes to their fullest capacity.

    DPM may allocate two or more tapes for each protection group.

    If the user specifies the allocation of more than one drive while creating the protection group, the data sources will be split across tapes. For example, if there are five data sources and a drive with a "maximum limit" of two drives, DPM may write three data sources on one tape and two on another. Depending on the size of the data sources, other scheduled backup jobs to tape in other protection groups, and the number of tape drives available at the time, you may find an uneven distribution of data sources going to the various tapes.


    Regards, Mike J. [MSFT] This posting is provided "AS IS" with no warranties, and confers no rights.
    Saturday, August 13, 2011 3:14 PM
    Moderator

All replies

  • Hi,

    You can only assign one tape library per protection group for backups, so if you want to use two tape libraries, assign one tape library to one or more protection groups and the other tape library to a different set of protection groups.  Then enable tape co-location to help utilize the tapes to their fullest capacity.

    DPM may allocate two or more tapes for each protection group.

    If the user specifies the allocation of more than one drive while creating the protection group, the data sources will be split across tapes. For example, if there are five data sources and a drive with a "maximum limit" of two drives, DPM may write three data sources on one tape and two on another. Depending on the size of the data sources, other scheduled backup jobs to tape in other protection groups, and the number of tape drives available at the time, you may find an uneven distribution of data sources going to the various tapes.


    Regards, Mike J. [MSFT] This posting is provided "AS IS" with no warranties, and confers no rights.
    Saturday, August 13, 2011 3:14 PM
    Moderator
  • Hi Mike 

    As far as i understand the backup should run to VTL and then from VTL to physical tape library. in my scenario backing up into VTL works perfect only the issue is physical tape library not backing up as a copy library. 

    

    Monday, September 10, 2018 9:58 AM