From: Martin.Carmichael@dial.pipex.com
Date: Wed Jan 08 2003 - 04:58:34 EST
Hi,
This is not a Solaris problem (?) but I am posting to see if anyone has
experienced this strange problem. We have posted to Veritas forum and logged
call with SUN, but, as yet, have not received solution, etc. Problem is with
VRTSvxfs vxdump command.
It appears that when a vxfs filesystem is created and data loaded into
it, vxdump does not save the filesystem completely. If the filesystem is
umounted and remounted then everything is ok (???). I am also sure that a
format/analyze/read of the disk instead of a filesystem remount appears to also
solve the problem.
The following is a note of the versions we are running
OS: Solaris 2.6 (kernel patch 105181-33)
vxfs: VRTSvxfs 3.4,REV=GA03
vxfs patch: 110433-07 (latest patch)
I have trolled through mailing lists, SUNSolve, etc but cannot find this
problem. I did find references to a vxdump problem which was re-introduced
into vxfs 3.4 but I believe it was fixed in patch 110433-02.
The following is an example of the problem:
# mkfs -F vxfs /dev/rdsk/c2t4d0s0 1229832
version 4 layout
1229832 sectors, 614916 blocks of size 1024, log size 1024 blocks
unlimited inodes, largefiles not supported
614916 data blocks, 613676 free data blocks
19 allocation units of 32768 blocks, 32768 data blocks
last allocation unit has 25092 data blocks
#
#
#
# mount -F vxfs /dev/dsk/c2t4d0s0 /martinc
#
#
# cd /var
# find . -print | cpio -pmd /martinc
538299 blocks
#
#
# df -k /martinc
Filesystem kbytes used avail capacity Mounted on
/dev/dsk/c2t4d0s0 614916 271678 321824 46% /martinc
#
#
# vxdump 0f /export/home/martinc.vx /martinc
vxfs vxdump: Date of this level 0 dump: Tue Jan 7 14:10:32 2003
vxfs vxdump: Date of last level 0 dump: the epoch
vxfs vxdump: Dumping /dev/rdsk/c2t4d0s0 to /export/home/martinc.vx
vxfs vxdump: mapping (Pass I) [regular files]
vxfs vxdump: mapping (Pass II) [directories]
vxfs vxdump: estimated 356598 blocks (174.12MB).
vxfs vxdump: dumping (Pass III) [directories]
vxfs vxdump: dumping (Pass IV) [regular files]
vxfs vxdump: vxdump: 178581 tape blocks on 1 volumes(s)
vxfs vxdump: Closing /export/home/martinc.vx
vxfs vxdump: vxdump is done
#
#
# vxrestore ivf /export/home/martinc.vx
Verify tape and initialize maps
Tape block size is 63
Dump date: Tue Jan 7 14:10:32 2003
Dumped from: the epoch
vxfs vxrestore: cannot preserve extent attributes
level 0 dump of on /dev/rdsk/c2t4d0s0
Extract directories from tape
Initialize symbol table.
vxrestore > ls
.:
3 lost+found/ 4 sadm/
vxrestore > q
#
#
# ls /martinc
adm dmi lp ntp saf tmp
audit dt mail opt snmp uucp
crash log news preserve spool vxvm
cron lost+found nis sadm statmon yp
#
#
#
#
#
#
# umount /martinc
# mount -F vxfs /dev/dsk/c2t4d0s0 /martinc
#
#
#
# vxdump 0f /export/home/martinc.vx /martinc
vxfs vxdump: Date of this level 0 dump: Tue Jan 7 14:11:38 2003
vxfs vxdump: Date of last level 0 dump: the epoch
vxfs vxdump: Dumping /dev/rdsk/c2t4d0s0 to /export/home/martinc.vx
vxfs vxdump: mapping (Pass I) [regular files]
vxfs vxdump: mapping (Pass II) [directories]
vxfs vxdump: estimated 545270 blocks (266.25MB).
vxfs vxdump: dumping (Pass III) [directories]
vxfs vxdump: dumping (Pass IV) [regular files]
vxfs vxdump: vxdump: 273093 tape blocks on 1 volumes(s)
vxfs vxdump: Closing /export/home/martinc.vx
vxfs vxdump: vxdump is done
#
#
# vxrestore ivf /export/home/martinc.vx
Verify tape and initialize maps
Tape block size is 63
Dump date: Tue Jan 7 14:11:38 2003
Dumped from: the epoch
vxfs vxrestore: cannot preserve extent attributes
level 0 dump of on /dev/rdsk/c2t4d0s0
Extract directories from tape
Initialize symbol table.
vxrestore > ls
.:
2790 adm/ 2819 log/ 2913 ntp/ 2843 spool/
2815 audit/ 3 lost+found/ 2831 opt/ 2934 statmon/
2948 crash/ 2915 lp/ 2838 preserve/ 2888 tmp/
2816 cron/ 2827 mail/ 4 sadm/ 2895 uucp/
2920 dmi/ 2830 news/ 2839 saf/ 2945 vxvm/
2938 dt/ 2906 nis/ 2928 snmp/ 2907 yp/
vxrestore > q
Regards
Martin
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