Hello, I was put in charge of two servers which utilize RAID but I am not too knowledgeable about RAID. Mainly I'm just looking for peace of mind.
From what I understand, RAID 1 and 10 have fault tolerance and a disk can be replaced should it have issues. We have a Dell Poweredge 1800 with hardware RAID1 and another Dell server running software RAID10 via CentOS.
Thanks in advance.
1) My main concern right now is this: If a disk fails and I replace it, does it automatically know which disk is the new one? I wouldn't want it to overwrite the existing disk with the empty new one and end up with nothing. This server doesn't have hot-swap, so I'll have no choice but to power it down if/when I replace the drive.
2) If my RAID card fails and I have to get a new one, does it have to be an identical model? Will it auto-detect the drives and have everything work automatically?
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RAID 1 and/or 10
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