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Date:      Sat, 16 Jan 2010 20:15:35 -0500
From:      The-IRC FreeBSD <freebsd@the-irc.org>
To:        freebsd-questions@freebsd.org
Subject:   Errors on UFS Partitions
Message-ID:  <322efb7b1001161715s47de3bcdqd40e6efabaf57a9b@mail.gmail.com>

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Hi,

I am sorry if I am asking a question that might have been brought up before
I have attempted to research my issue but it has many angles it might be
listed under so please bare with me.

We have had ongoing problems with UFS Errors on our root partition (and any
additional partition that did not have soft-updates enabled by default) and
we recently had a problem with a secondary drive that housed home
directories completely filled up and then everything locked up due-to huge
CPU and Memory usage because nothing was able to write to the drive but when
the server was rebooted it failed to bootup because of critical errors on
the root partition.

We have /etc and /usr on the root partition and our home/var partitions
mistakenly do not have soft-updates flag set.

::dmesg::
http://the-irc.com/dmesg

::mount::
/dev/ad4s1a on / (ufs, local)
devfs on /dev (devfs, local, multilabel)
/dev/ad4s1d on /home (ufs, local, with quotas)
/dev/ad4s1e on /tmp (ufs, local, noexec, nosuid, soft-updates)
/dev/ad4s1f on /var (ufs, local)
devfs on /var/named/dev (devfs, local, multilabel)
procfs on /proc (procfs, local)
/dev/ad0s1e on /Backups (ufs, local, soft-updates)
/dev/ad0s1d on /root (ufs, local, soft-updates)

::fsck /::
** /dev/ad4s1a (NO WRITE)
** Last Mounted on /
** Root file system
** Phase 1 - Check Blocks and Sizes
** Phase 2 - Check Pathnames
** Phase 3 - Check Connectivity
** Phase 4 - Check Reference Counts
UNREF FILE I=361477  OWNER=root MODE=100666
SIZE=144464 MTIME=Jan  1 03:59 2010
CLEAR? no

UNREF FILE I=966786  OWNER=root MODE=100644
SIZE=0 MTIME=Jan 15 23:02 2010
CLEAR? no

** Phase 5 - Check Cyl groups
SUMMARY INFORMATION BAD
SALVAGE? no

BLK(S) MISSING IN BIT MAPS
SALVAGE? no

549534 files, 4784719 used, 2830920 free (47200 frags, 347965 blocks, 0.6%
fragmentation)




::fsck /home::
** /dev/ad4s1d (NO WRITE)
** Last Mounted on /home
** Phase 1 - Check Blocks and Sizes
INCORRECT BLOCK COUNT I=1957573 (4 should be 0)
CORRECT? no

INCORRECT BLOCK COUNT I=10270973 (300 should be 0)
CORRECT? no

INCORRECT BLOCK COUNT I=10270976 (44 should be 0)
CORRECT? no

INCORRECT BLOCK COUNT I=10271040 (48 should be 0)
CORRECT? no

INCORRECT BLOCK COUNT I=11871624 (4 should be 0)
CORRECT? no

** Phase 2 - Check Pathnames
UNALLOCATED  I=732010  OWNER=agrippas MODE=100600
SIZE=33868 MTIME=Jan 16 19:05 2010
FILE=/agrippas/services/lib/akill.db

REMOVE? no

UNALLOCATED  I=4545818  OWNER=port1080 MODE=100600
SIZE=2052 MTIME=Jan 16 19:06 2010
FILE=/port1080/services/nick.db

REMOVE? no

** Phase 3 - Check Connectivity
** Phase 4 - Check Reference Counts
UNREF FILE I=730879  OWNER=agrippas MODE=100664
SIZE=3020510 MTIME=Jan 16 18:54 2010
CLEAR? no

LINK COUNT FILE I=732011  OWNER=agrippas MODE=0
SIZE=0 MTIME=Jan 16 19:05 2010  COUNT 0 SHOULD BE -1
ADJUST? no

UNREF FILE I=2359889  OWNER=killjoyr MODE=100600
SIZE=0 MTIME=Jan 10 17:20 2010
CLEAR? no

UNREF FILE I=2359928  OWNER=killjoyr MODE=100600
SIZE=0 MTIME=Jan 10 17:20 2010
CLEAR? no

UNREF FILE I=2359930  OWNER=killjoyr MODE=100600
SIZE=0 MTIME=Jan 10 17:20 2010
CLEAR? no

UNREF FILE I=2359931  OWNER=killjoyr MODE=100600
SIZE=0 MTIME=Jan 10 17:20 2010
CLEAR? no

UNREF FILE I=2359932  OWNER=killjoyr MODE=100600
SIZE=0 MTIME=Jan 10 17:20 2010
CLEAR? no

UNREF FILE I=2359934  OWNER=killjoyr MODE=100600
SIZE=0 MTIME=Jan 10 17:20 2010
CLEAR? no

UNREF FILE I=2360094  OWNER=killjoyr MODE=100600
SIZE=0 MTIME=Jan 10 17:20 2010
CLEAR? no

UNREF FILE I=2360101  OWNER=killjoyr MODE=100600
SIZE=0 MTIME=Jan 10 17:20 2010
CLEAR? no

UNREF FILE I=2360103  OWNER=killjoyr MODE=100600
SIZE=0 MTIME=Jan 10 17:20 2010
CLEAR? no

UNREF FILE I=2360104  OWNER=killjoyr MODE=100600
SIZE=0 MTIME=Jan 10 17:20 2010
CLEAR? no

UNREF FILE I=2360118  OWNER=killjoyr MODE=100600
SIZE=0 MTIME=Jan 10 17:20 2010
CLEAR? no

UNREF FILE I=2360121  OWNER=killjoyr MODE=100600
SIZE=0 MTIME=Jan 10 17:20 2010
CLEAR? no

UNREF FILE I=2360122  OWNER=killjoyr MODE=100600
SIZE=0 MTIME=Jan 10 17:20 2010
CLEAR? no

UNREF FILE I=2360123  OWNER=killjoyr MODE=100600
SIZE=0 MTIME=Jan 10 17:20 2010
CLEAR? no

UNREF FILE I=2360124  OWNER=killjoyr MODE=100600
SIZE=0 MTIME=Jan 11 00:02 2010
CLEAR? no

UNREF FILE I=2920477  OWNER=marianus MODE=100644
SIZE=6 MTIME=Jan  2 20:27 2010
CLEAR? no

UNREF FILE I=2920480  OWNER=marianus MODE=100644
SIZE=6 MTIME=Jan  2 20:27 2010
CLEAR? no

LINK COUNT FILE I=4545817  OWNER=port1080 MODE=0
SIZE=0 MTIME=Jan 16 19:06 2010  COUNT 0 SHOULD BE -1
ADJUST? no

UNREF FILE I=6267525  OWNER=chijiru MODE=100644
SIZE=5 MTIME=Jan  2 10:05 2010
CLEAR? no

UNREF FILE I=6760292  OWNER=jibbanet MODE=100644
SIZE=6 MTIME=Jan 10 20:21 2010
CLEAR? no

UNREF FILE I=7089454  OWNER=talkingi MODE=100600
SIZE=0 MTIME=Jan 10 22:22 2010
CLEAR? no

UNREF FILE I=8668793  OWNER=mutrcom MODE=100660
SIZE=1074 MTIME=Jan  8 14:32 2010
CLEAR? no

UNREF FILE I=9752529  OWNER=gigircco MODE=100600
SIZE=0 MTIME=Jan 11 00:25 2010
CLEAR? no

UNREF FILE I=9752883  OWNER=gigircco MODE=100600
SIZE=18 MTIME=Jan 12 00:04 2010
CLEAR? no

UNREF FILE I=9895015  OWNER=apexeon MODE=100600
SIZE=21 MTIME=Jan 11 00:03 2010
CLEAR? no

UNREF FILE I=10270973  OWNER=goodtime MODE=0
SIZE=0 MTIME=Jan 16 19:06 2010
CLEAR? no

UNREF FILE I=10270976  OWNER=goodtime MODE=0
SIZE=0 MTIME=Jan 16 19:06 2010
CLEAR? no

UNREF FILE I=10271040  OWNER=goodtime MODE=0
SIZE=0 MTIME=Jan 16 19:06 2010
CLEAR? no

UNREF FILE I=12107785  OWNER=chihuahu MODE=100644
SIZE=26585 MTIME=Jan 12 21:45 2010
CLEAR? no

UNREF FILE I=12107792  OWNER=chihuahu MODE=100644
SIZE=5005 MTIME=Jan 13 09:00 2010
CLEAR? no

UNREF FILE I=12107793  OWNER=chihuahu MODE=100644
SIZE=20045 MTIME=Jan 12 21:12 2010
CLEAR? no

UNREF FILE I=12107794  OWNER=chihuahu MODE=100644
SIZE=6 MTIME=Jan  3 03:22 2010
CLEAR? no

UNREF FILE I=12107811  OWNER=chihuahu MODE=100644
SIZE=4312 MTIME=Jan 13 07:30 2010
CLEAR? no

UNREF FILE I=12152959  OWNER=chihuahu MODE=100600
SIZE=0 MTIME=Jan 11 09:46 2010
CLEAR? no

UNREF FILE I=12789320  OWNER=bitunite MODE=100600
SIZE=0 MTIME=Jan 11 00:03 2010
CLEAR? no

** Phase 5 - Check Cyl groups
BLK(S) MISSING IN BIT MAPS
SALVAGE? no

FREE BLK COUNT(S) WRONG IN SUPERBLK
SALVAGE? no

SUMMARY INFORMATION BAD
SALVAGE? no

745441 files, 10985291 used, 39790082 free (85610 frags, 4963059 blocks,
0.2% fragmentation)




To prevent letting these errors go out of control and not beable to fix the
root partition errors without going into singleuser mode and the other
partitions by mounting them with soft-updates flag, does anyone advise
removing everything from the root partition and only leaving the bootloader
and thus moving /etc and /usr (or most of all just /usr) to it's own
partition or do you guys have a better solution.

Every partition gets errors over time but if you are unable to correct them
without downtime how are you to correct them before they get out of control?



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