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05-07-2008
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Filesystems automatically umounted Closed/Synced
Hello friends,
I am confused with one of aix filesystem problem. On one of my server, some of my rootvg filesystems shows Closed/synced status for i.e /home, /var/adm/ras/platform Everyday i manually mount these filesystems. What is the reason causing filesystems to go in Closed/synced state?. Also /etc/filesystems attributes seems to be normal. Please refer below outputs. Code:
# lsvg -l rootvg rootvg: LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT hd5 boot 1 2 2 closed/syncd N/A hd6 paging 32 64 2 open/syncd N/A hd8 jfs2log 1 2 2 open/syncd N/A hd4 jfs2 16 32 2 open/syncd / hd2 jfs2 120 240 2 open/syncd /usr hd9var jfs2 24 48 2 open/syncd /var hd3 jfs2 40 80 2 open/syncd /tmp hd1 jfs2 24 48 2 closed/syncd /home hd10opt jfs2 24 48 2 open/syncd /opt fwdump jfs2 1 2 2 closed/syncd /var/adm/ras/platform tsmtestlv jfs 10 10 1 closed/syncd N/A fslv00 jfs2 1 1 1 closed/syncd /testtsm loglv06 jfslog 1 1 1 closed/syncd N/A fslv07 jfs2 8 8 1 closed/syncd /tsmdata/toc lv02 jfs 117 117 1 closed/syncd /mkcd/cd_images Code:
/home:
dev = /dev/hd1
vfs = jfs2
log = /dev/hd8
mount = true
check = true
vol = /home
free = false
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05-08-2008
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The "mount = TRUE" indicates that the FS would be mounted automatically during a reboot, so that rules a reboot out.
The only other way to get a FS into "closed" state is to umount it. Maybe this is done by some script, which runs frequently? You could write a little script which tests if /home is still mounted in regular intervals and writes a timestamp to a log file each time it is. This way you cound find out when exactly the umount happens. Have a look then in the crontabs, maybe you can find the "offender". Just guessing, but could it be some that a script mounts an NFS share, tries to umount it and simply gets it wrong - umounting not the NFS share but the /home FS? I hope this helps. bakunin
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05-20-2008
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Quote:
Sorry for the late reply guys. Thanks Bak, Ya your right. Theres a kinda backup script run by tivoli which has umount all and varyoffvg command for some of my apps vgs. But at later after the backup activity theres another script which varyons the same vgs and mounts my application filesystems. So now the question arises is when the 1st script runs umount all why /home does get in closed/synced mode? though it is system related filesystem?
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05-20-2008
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Unmount them manually and then use whatever the script uses to mount them, probably mount -a and see if it fails. Sometimes /etc/filesystems needs pruning, though that's usually when you have nested filesystems like /home and /home/fsname, etc.
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