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.
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Migrating miniSAS RAID array to new Mac
- Thread starter cbt3
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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.)
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