Bad drive in RAID 5 set

Works as advertised! 


(AC2) HP ProLiant ML350 G3
(3) 36.4GB Disks in RAID5 + 36.4GB Hot Spare
Yields 72GB of storage and of course, Hot Spare

One drive quit over the weekend. It automatically tacked on the Hot Spare and rebuilt the RAID without a pause.

Later…

While hot, physically replaced the bad drive. Without a mouse click, it recognized the new drive, rebuilt the RAID and idled the Hot Spare.

Gotta freakin’ love it.

Technically, never had to touch the mouse.
BTW, mixing 10k and 15rpm no prob.

Having a Hot Spare is really a belt and suspenders approach. After all, the point of RAID 5 is that any ONE drive can fail and result in no data loss. Performance would just take a hit and you’d be in trouble if a second drive then failed.
With the Hot Spare, I have time to get another drive without users noticing a performance hit. Also, while tracking down a replacement, I still have RAID 5 fault tolerance.

2010 04 12 AC2
HOT SPARE DID NOT FAIL, BUT WAS SWAPPED OUT BECAUSE IT IS BEGINNING A FAINT “SING”. Marked and set aside.

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