On 04/19/12 14:20, Mike Diehl wrote: > > My question is, "which one?" Usually I get a [UU] on a good RAID, and an _ > for the failed drive. That would indicate that sda3 has failed. However, > sdb3 is marked with an (F), which I've never seen before. > > Which drive should I replace?
You can use smartctl to pull the S/N off the drive. backup2 ~ # smartctl -i /dev/sda smartctl 5.42 2011-10-20 r3458 [x86_64-linux-3.2.2-hardened-r1] (local build) Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net === START OF INFORMATION SECTION === Model Family: Western Digital Caviar Blue Serial ATA Device Model: WDC WD2500AAKS-61L9A0 Serial Number: WD-WMAV2JE70517 ... > Also, why did I get an I/O error? Shouldn't my RAID have just failed over > silently? Short answer: lots of things can go wrong. It might be as simple as removing the failing drive from the array. But it doesn't matter, back up the un-failed disk right now if there's anything important on it. *Then* play around to get the array working again.
