[CentOS] MegaRAID, and creating a RAID 1 while live
mark
m.roth at 5-cent.usWed Apr 10 17:41:42 UTC 2019
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I've started searching, but if anyone here has a link.... I *just* discovered yesterday, to my dismay, that a previous admin built a box that has four hot-swap bays as two as RAID 1... and the other two as RAID 0. Honest, I thought I was pulling the failing drive out of a RAID 1, not that the RAID 0 contained all the websites for a production box.... So, what I want to do is this: it's a Dell, with a PERC 710. Let's call the two drives I'm dealing with sdb and sdc. With mdadm, what I'd do is 1. copy what's on the the RAID 0 of sdc to the RAID 0 of sdb, 2. create sdc as RAID 1, with a drive missing. 3. copy everything from sdb to sdc, and finally. 4. kill the RAID 0 of sdb, and add it as the missing drive to the new RAID 1. And, all with MegaCli64.... Links? mark
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