Thursday, December 23, 2010

Increasing a Hardware RAID 1 Array Size

In this post, the poster is asking whether or not you can increase the size of a hardware RAID 1 array by installing larger drives in half of the array, rebuilding the array, installing larger drives in the other half of the array and rebuilding again.  The answer seems to be no, you can't.

Rather, after googling around, the answer seems to be that you need to create a image of your system; replace all of the drives in the array with larger ones, create an new, larger and empty array on the new drives; and restore your image expanded it to fill the larger array.

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