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Operating Systems AIX Fsck -n on mounted FS - how unreliable ? Post 302925519 by maraixadm on Monday 17th of November 2014 04:30:36 PM
Old 11-17-2014
Question Fsck -n on mounted FS - how unreliable ?

greetings all, we had SAN bobbles recently and so I ran fsck against all local FS on all systems.

our domino servers present a moving set of alleged corruption, both JFS and JFS2 FS.

Am I playing whack-a-mole with special effects (i.e. false positives) produced by vigorous filesystem activity while I'm trying to scan it ? Or is this potentially real enough so it's worth taking outages to unmount FS, etc. ?

TIA
 

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xchklog(8)						JFS utility - extract fsck.jfs log						xchklog(8)

NAME
xchklog - extract a log from the JFS fsck workspace into a file SYNOPSIS
xchklog [ -f output.file ] [ -p ] [ -V ] device DESCRIPTION
xchklog extracts the contents of either the most recent or immediately prior JFS fsck service log from the specified device, and writes the output into a specified or default file. (The default file name is <pwd>fscklog.new. If the -p option is used, the default file name is <pwd>fscklog.old.) The contents of the output file can be formatted into text by using the JFS utility xchkdmp. device is the special file name corresponding to the actual device from which the fsck log will be extracted (e.g. /dev/hdb1 ). OPTIONS
-f output.file Specify the output file name, overriding the default file name. output.file must be 127 characters or less in length. output.file will be created in the present working directory unless it is fully qualified. -p Extract the prior log (as opposed to the most recent log). -V Print version information and exit (regardless of any other chosen options). EXAMPLES
Extract the most recent log on /dev/hda5 into <pwd>fscklog.new: xchklog /dev/hda5 Extract the most recent log on /dev/hdb3 into /temp/l9651107.log: xchklog -f /temp/l9651107.log /dev/hdb3 Extract the prior log on /dev/hdb4 into <pwd>fscklog.old: xchklog -p /dev/hdb4 REPORTING BUGS
If you find a bug in JFS or xchklog, please report it via the bug tracking system ("Report Bugs" section) of the JFS project web site: http://oss.software.ibm.com/jfs Please send as much pertinent information as possible, including any xchklog error messages and the complete output of running fsck.jfs with the -v option on the JFS device. SEE ALSO
xchkdmp(8), mkfs.jfs(8), fsck.jfs(8), logdump(8), logredo(8), xpeek(8) AUTHOR
Barry Arndt (barndt@us.ibm.com) xchklog is maintained by IBM. See the JFS project web site for more details: http://oss.software.ibm.com/jfs January 11, 2002 xchklog(8)
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