From: Grzegorz Bakalarski (G.Bakalarski@icm.edu.pl)
Date: Mon Sep 22 2003 - 08:20:00 EDT
Hello All!
Machine: V880
OS: Solaris 9 + latest patches
I have T3 array which have 4 luns, about 320GB each.
Because I used buggy set of options for solaris 9 i.e.
logging,noatime, I worry about consistency of my data...
Because the server is production one, I have not enouch time
to take it off-line and make full (with modifying) fsck
(fscking 320GB with some 15 000 000 small files can take
few hours [from 3 to 10]). So I ran fsck -N to check if my
filesystems are affected by the bug.
As a result I got the following messages (other not mentioned
info was OK):
fsck -N /dev/rdsk/c4t1d0s2
(...)
** Phase 5 - Check Cyl groups
FILE SYSTEM STATE IN SUPERBLOCK IS WRONG; FIX? no
2721036 files, 289047502 used, 58891937 free (1931217 frags, 7120090 blocks, 0.6% fragmentation)
fsck -N /dev/rdsk/c4t1d1s2
(...)
** Phase 5 - Check Cyl groups
16733358 files, 323422199 used, 24517240 free (22310664 frags, 275822 blocks, -5.9% fragmentation)
fsck -N /dev/rdsk/c4t1d2s2
(...)
** Phase 4 - Check Reference Counts
LINK COUNT DIR I=193779 OWNER=xxxxxxx MODE=40755
SIZE=512 MTIME=Sep 20 17:16 2003 COUNT 12 SHOULD BE 13
ADJUST? no
** Phase 5 - Check Cyl groups
FREE BLK COUNT(S) WRONG IN SUPERBLK
SALVAGE? no
FILE SYSTEM STATE IN SUPERBLOCK IS WRONG; FIX? no
1073730 files, 114560337 used, 234258945 free (2787761 frags, 28933898 blocks, 0.8% fragmentation)
fsck -N /dev/rdsk/c4t1d3
(...)
** Phase 5 - Check Cyl groups
15956766 files, 202838807 used, 126169758 free (26151222 frags, 12502317 blocks, -5.1% fragmentation)
The questions are:
1) WHAT DOES IT MEAN NEGATIVE FRAGMENTATION ON LUNS D1 & D3
( -5.9% & -5.1%) (no errors shown by fsck)? IS IT NORMAL (OK)???
2) ARE THE ERRORS ON LUNS D0 & D2 SEVERE ONES? CAN I SIMPLY SAY (YES)
OR SHOULD I TAKE MUCH CARE (BACKUP DATA) ???
Thanks for any suggestions ...
GB
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