Migrating miniSAS RAID array to new Mac

Discussion in 'Mac Pro' started by cbt3, Dec 21, 2015.

  1. cbt3 macrumors member

    Joined:
    Dec 14, 2011
    #1
    I have a 2011 Mac with a ARC-1800x PCIe Raid controller hooked up to a miniSAS SanDigital tower with a 12TB RAID6 array; I am upgrading to a new Mac Pro, with only thunderbolt ports. I have a OWC Helios 2 to support the PCIe card and want to use the old array in the new computer. When I put the old card in the new computer will it simply read the array no problem? Or will I have to recreate the whole array from scratch? I have about 10TB of data on the array and I would like to avoid the time of creating an additional copy if necessary.
     
  2. cbt3 thread starter macrumors member

    Joined:
    Dec 14, 2011
  3. AidenShaw, Dec 22, 2015
    Last edited: Dec 22, 2015

    AidenShaw macrumors P6

    AidenShaw

    Joined:
    Feb 8, 2003
    Location:
    The Peninsula
    #3
    Make a copy if you don't have a full backup - hardware RAID controllers can be quirky.

    Even if it *should* work, it might get confused if there's a slipup. (I recently reconfigured a server with a 6 drive RAID RAID-6 array. I didn't seat one of the 4-lane SAS connections properly, so 4 drives didn't show. I shutdown, connected the cable and rebooted. The volume was now "FAILED, UNUSABLE". Fortunately, the online RAID configuration utility had a manual override to force it to "GOOD". The BIOS level utility considered it dead.)
     
  4. cbt3 thread starter macrumors member

    Joined:
    Dec 14, 2011
    #5
    In case anyone is looking for answers to the same question; yes, it just worked no problem, I just needed to install the new mRaid drivers on the new machine. Still did the full backup just in case.
     
  5. DearthnVader macrumors regular

    DearthnVader

    Joined:
    Dec 17, 2015
    Location:
    Red Springs, NC
    #6
    So, how did you backup 10TB of Data?
     
  6. cbt3 thread starter macrumors member

    Joined:
    Dec 14, 2011
    #7
    Over 4 different Hard drives,
     

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