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Enterprise Software Thread, DPM 2012 SP1 / Deduplication / 2008 R2 Storage Server in Technical; We currently have DPM 2012 SP1 installed on a server running 2008 R2 Storage Server. Once DPM 2012 SP1 was ...
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    DPM 2012 SP1 / Deduplication / 2008 R2 Storage Server

    We currently have DPM 2012 SP1 installed on a server running 2008 R2 Storage Server.

    Once DPM 2012 SP1 was released many months back (so that it then supports deduplicated data/volumes) I built a Server 2012 VM Server to use as a file server; with the intention of activating and using deduplication.

    All went well until I found out that although DPM 2012 SP1 supports backing up of deduplicated data/volumes; whilst running it on a 2008 R2 Storage Server this feature is not.
    I think it is to do with the fact that 2008 R2 Storage Server only deduplicates at file level; and Server 2012 / DPM 2012 SP1 is (also) at block level...although I may be wrong!!

    Anyway, although I always prefer to do clean installs of OS's, I am tempted to do an in place upgrade from 2008 R2 Storage Server to 2012...anything I should look out for? Anyone else done this?

    Thanks,

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    You need to uninstall DPM prior to the in-place upgrade. The steps are as follows:

    1) Backup the DPM 2012 SP1 DPM database.
    2) Un-install DPM 2012 SP1 - maintain replica data.
    3) Upgrade the Server 2008 O.S> to Server 2012 O.S. Make sure the DPM storage pool disks are imported.
    4) Install DPM 2012 Sp1
    5) Restore DPM 2012 Sp1 Database using Dpmsync -restoreDB ...
    6) Run DPMSync -Sync to make new mountpoints.
    7) Run CC to get all datasources green.

    Useful info about dedup in DPM 2012 SP1 - Protecting deduplicated volumes

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    No issues for me. Didn't have DPM installed before on our servers but in place upgrade went like a breeze - no ill after effects a couple of months later that would make me suggest a clean install.



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