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Top Forums UNIX for Advanced & Expert Users Identify failed disk in Linux RAID Post 302562852 by admin_xor on Saturday 8th of October 2011 03:31:42 PM
Old 10-08-2011
Well I cannot help you determine what exact physical drive got corrupted; but, I surely can help you figure out which drive in the RAID array is faulty.

It's simple. there are a lot of ways to do this:

Code:
mdadm --detail /dev/md1 | grep faulty

or,
Code:
dmesg | grep -i "disk failure"

For Linux RAID, I always consult http://raid.wiki.kernel.org/

Hope this helps!
 

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ATARAID(4)						   BSD Kernel Interfaces Manual 						ATARAID(4)

NAME
ataraid -- software BIOS RAID SYNOPSIS
pseudo-device ataraid ld* at ataraid? vendtype ? unit ? DESCRIPTION
The ataraid driver provides support for BIOS-based software RAID controllers. These are devices which have some simple support for several basic RAID levels (often RAID 0 and RAID 1), but which require software support to actually perform the RAID function. The BIOS support is largely just to create and recognize the array so that it may be a boot device. The driver currently supports RAID formats from: o Adaptec HostRAID (found in Intel 6300ESB) o Intel MatrixRAID o JMicron RAID o nVidia MediaShield o Promise FastTrak o Via V-RAID (found in many VIA-based motherboards) Status of the logical disk as well as the disks associated with it, can be viewed through the bioctl(8) utility. SEE ALSO
ld(4), bioctl(8) HISTORY
The ataraid driver first appeared in NetBSD 2.0. AUTHORS
The ataraid driver was originally adapted from FreeBSD by Jason Thorpe <thorpej@NetBSD.org>. BUGS
Not all features of the software RAID are currently recognized or supported. For example, the Adaptec support doesn't recognize when a RAID 1 should be in a ``building'' state, and it does not do the right thing. At least part of the reason for this is that the publically-available information on these formats is quite limited. BSD
September 16, 2008 BSD
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