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hardware raid

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by matt5968

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When you use mirroring with hardware controller. When the primary hard drive fails will the mirror drive take orver. And will you be able to reboot or will you have to make the mirrored drive primary by repatching it. ThANKS

6 replies

by michael roark - ccna/da mcp 3csa

yes, the mirrored hard drive will take over. It is a very good test to do if you have a hardware RAID controller. I try to test mine every couple of months, so thank you for reminding me.
Most hardware based RAID's that I have seen also have the software to control it, if you would rather it do the funky chicken upon one drive crashing, but I kinda think that's the whole point of having a hardware RAID is so it doesn't.
not to mention, you can do like I do, and get a super big drive and form a RAID 1 (software based) with your drives, to ensure that you get ALL of the info backed up.
when doing a software RAID, your machine doesn't see the multiple drives in the hardware RAID, just the logical formed ones.
So you're basically double Backing your config's, and you can take that super drive off site, in case your building catches fire or something crazy.
Good Luck.

by michael roark - ccna/da mcp 3csa

PS. to answer the other part of your question, yes you should be able to reboot without replacing the faulty drive. I can, and my hardware is Adaptec based (like almost everyone else's is)

by ann777

The mirrored drive should take over automatically. You should also get some sort of indication from the system that the primary has failed.

You should not need to reboot or repatch until you replace the crashed primary drive with a new driveand recreate the mirror.

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