11-17-2014
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
10 More Discussions You Might Find Interesting
1. Filesystems, Disks and Memory
Once in a while, I would think it advisable to run fsck -y to check the disk.
Should I sign in as su or sudo?
What is the difference and which is preferred?
Thank you in Advance! (4 Replies)
Discussion started by: rpatrick
4 Replies
2. Solaris
OS: Solaris 5.8
Everytime I run fsck -y I get: FILE SYSTEM STATE IN SUPERBLOCK IS WRONG; FIX? yes
Do I need to run fsck with the backup superblock option or is there
some other option I should use. I have tried the format->analyze->read
option but that does not report any corrupt blocks.... (5 Replies)
Discussion started by: run_time_error
5 Replies
3. UNIX for Dummies Questions & Answers
I have a Solaris 7 box. We got a strange error in the syslog, which read as follows:
Nov 15 11:50:16 server-01 unix: NOTICE: free inode /mount1/8025691 had size 0x20d
I consulted with a fellow sysadmin, and he suggested running "fsck -N" on the filesystem in question without unmounting it. So I... (1 Reply)
Discussion started by: GKnight
1 Replies
4. UNIX for Dummies Questions & Answers
I want to use fsck to check and repair my linux system. When I use this command, what do I need to pay attention to or what should I do to make job running successfully. Thanks for your inputs for a newbie. (3 Replies)
Discussion started by: duke0001
3 Replies
5. Solaris
Hello
I am getting this in dmesg:
/mount1: unexpected free inode 1262865, run fsck(1M) -o f
What are the options I should use with fsck?
thanks (2 Replies)
Discussion started by: melanie_pfefer
2 Replies
6. UNIX for Dummies Questions & Answers
i want to know what does it mean by doing a consistentcy check fsck on a disk and why journaling filesystems dont need to do it
and what is meant by disk is in a consistent state when writing because entries are recorded in a journal and then to the metadata and then removed from journal (1 Reply)
Discussion started by: farhan_t49
1 Replies
7. UNIX for Dummies Questions & Answers
Hello
I own a SPARC Ultra 10 workstation (standalone) and when issuing the fsck command I get the following output on fs C0t0d0s7:
Phase 1 (checks blocks and sizes):
dada warning: /pci@lf;0/pci@1, 1/ide@3/dad@0,0(dad1): ATA Transport failed:reason, `incomplete'>
Uncorrectable data... (2 Replies)
Discussion started by: tjwops
2 Replies
8. Solaris
I am not able to boot into solaris. I am getting following message.
The / file system (/dev/rdsk/c0t0d0s0) is being checked.
Warning - Unable to repair the / filesystem. Run fsck manually(fsck -F ufs /dev/rdsk/c0t0d0s0).
I ran fsck manually but it didn't work.
Help from anyone would be... (1 Reply)
Discussion started by: likhitgatagat
1 Replies
9. Solaris
What can I fix this issue? I have ran below commands but everything is same.:confused:
WARNING: Last shutdown is later than time on time-of-day chip: check date.
The / file system (/dev/rdsk/c1t0d0s0) is being checked
WARNING - unable to repair the / filesystem. Run fsck manually (fsck -F... (4 Replies)
Discussion started by: getrue
4 Replies
10. Solaris
Hi,
When we are running fsck in vxvm FS within few sec it will completed even if data is more than 500GB or in TB also.
compare to UFS FS in that it will take more time compare with vxvm.UFS check FS in block level. & then vvxm on where its checking the FS.
Please explain. (1 Reply)
Discussion started by: tiger09
1 Replies
LEARN ABOUT REDHAT
xchklog
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)