none
DPM 2010 - Volume size planning RRS feed

  • Question

  • I am configuring and planning a file server.  I am trying to determine the best volume size that DPM will be able to reliably backup.  I'm concerned that as the volume size grows, DPM may have trouble backing up these volumes.  If I plan for one large volume that continues to grow overtime, it would start at 8TB and could grow to be 20+ TB over the next 5 years.  The other option is to split the data into 2 TB chucks and grow the volumes up to 6TB over the next 5 years.

    1. What would you recommend?

    2. Is there any limitation to the size of a single volume DPM can backup?

    3. Is there any recommendations that you may have?

     

    Thanks

    Wednesday, July 28, 2010 11:26 PM

Answers

  • Ye,  DPM 2010 can protect a 6-8 TB volume with no problems at all since DPM 2010 requires x64 OS.  The problems come if the protected server is 32 bit, we cannot snapshot a volume any larger than about 5TB.

     

    Scalability Factors for Shadow Copie: http://technet.microsoft.com/en-us/library/cc755419(WS.10).aspx

     

    So make sure the source server operating system hosting the large volumes you want to protect are running a x64 operating system, preferably Windows 2008 R2.


    Regards, Mike J [MSFT] This posting is provided "AS IS" with no warranties, and confers no rights.
    Saturday, August 7, 2010 3:22 PM
    Moderator

All replies

  • Not just for DPM sake, but for overall NTFS performance and maintenance I would recommend splitting the data across several volumes.  Things like defrag and chkdsk times can sometimes hinder you when the volumes reach the multi-TB size.

    Please reference the following technet article for maximum volume sizes: http://technet.microsoft.com/en-us/library/ff399280.aspx

     

    More self help links.

    DPM 2010 technet: http://technet.microsoft.com/en-us/library/ff399192.aspx

    DPM 2010 Product Documentation: http://technet.microsoft.com/en-us/library/ff833813.aspx

     


    Regards, Mike J [MSFT] This posting is provided "AS IS" with no warranties, and confers no rights.
    Friday, July 30, 2010 10:39 PM
    Moderator
  • We do plan to split our data in 5 2TB volumes.  However, continuing to grow our data on 2TB volumes creates a decent amount of management.  The thought was to find a balance between many volumes and the size of the volumes.  We also plan to replicate this data to a standby server so we can fail-over if necessary.  Is DPM capable of backing up a 6-8 TB volume?
    Friday, August 6, 2010 11:05 PM
  • Ye,  DPM 2010 can protect a 6-8 TB volume with no problems at all since DPM 2010 requires x64 OS.  The problems come if the protected server is 32 bit, we cannot snapshot a volume any larger than about 5TB.

     

    Scalability Factors for Shadow Copie: http://technet.microsoft.com/en-us/library/cc755419(WS.10).aspx

     

    So make sure the source server operating system hosting the large volumes you want to protect are running a x64 operating system, preferably Windows 2008 R2.


    Regards, Mike J [MSFT] This posting is provided "AS IS" with no warranties, and confers no rights.
    Saturday, August 7, 2010 3:22 PM
    Moderator
  • That is good to know.  Thanks for the information Mike.

    You are very experienced with DPM and I'm sure you have seen many different deployements.  I am curious, How do you see small to medium business storing and backing up large amounts of data?  

    Monday, August 9, 2010 3:33 PM