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re: Got 4 drives: RAID 5 vs RAID 1+0
Posted on 6/10/15 at 9:46 pm to Casty McBoozer
Posted on 6/10/15 at 9:46 pm to Casty McBoozer
Raid 5 is a sucker bet. Mirror them. Drives are cheap.
Drive failures in a Raid 5 are NOT independent events. Too many people too many times have seen a second failure during a parity rebuild.
Whatever you do, back up anything on the array that you care about. Back it up religiously, and practice restoring once in a while. Raids will fail. They really will.
Drive failures in a Raid 5 are NOT independent events. Too many people too many times have seen a second failure during a parity rebuild.
Whatever you do, back up anything on the array that you care about. Back it up religiously, and practice restoring once in a while. Raids will fail. They really will.
1
Posted on 6/10/15 at 10:18 pm to tokenBoiler
Accept the loss in array size and go RAID 1+0, especially if you're using large SATA drives. There's all sorts of reported disasters of secondary drive failures during a RAID5 rebuild with large drives.
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