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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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ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME
zgrep - search possibly compressed files for a regular expression SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename... DESCRIPTION
Zgrep invokes grep on compressed or gzipped files. These grep options will cause zgrep to terminate with an error code: (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*). All other options specified are passed directly to grep. If no file is specified, then the standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and fed to grep. If the GREP environment variable is set, zgrep uses it as the grep program to be invoked. EXIT CODE
2 - An option that is not supported was specified. AUTHOR
Charles Levert (charles@comm.polymtl.ca) SEE ALSO
grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1) ZGREP(1)
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