[ManishMandvia]

Hi,

In my environment i am having one AIX 5.2 server.

We have create three filesystems namely
/prd/data
/prd/data/database1
/prd/data/database2

We are rebooting that server on monthly basis

After reboot I have observed that all above FS mounted . but we can see any data in /prd/data/database1, /prd/data/database2 FS.

When i checked df -g /prd/data/database1 it were pointing to /prd/data FS.

So i have umount below FS & remount .Now i can able to see correct mount point.

/prd/data/database1
/prd/data/database2

Can anyone assist me what prevent the above 2 FS to mount properly after reboot.

Thanks in advance

Manish Mandvia

[purplemonkey]

Sounds like an overmount situation.

Check your /etc/filesystems file and make sure the lowest heirachy filesystem mounting first. In the order you have them listed above is the correct sequence..

/prd/data
/prd/data/database1
/prd/data/database2

[ManishMandvia]

I checked my /etc/filesystems file and found the below filesystem in correct sequence only

/prd/data
/prd/data/database1
/prd/data/database2

What could be other possiblity.

[purplemonkey]

Are you able to give the output of a few commands for more info?

the output of these could be helpful in finding your problem:

* grep -p "/prd/data" /etc/filesystems
* mount

are there any scripts/commands running at boot time which could be mounting file systems?

[ManishMandvia]

/prd/data:
dev = /dev/lvppdwmy_app1
vfs = jfs
log = /dev/loglv02
mount = false
check = false
/prd/datanew:
dev = /dev/lv05
vfs = jfs2
log = /dev/lv04
mount = false
check = false
options = rw
account = false
/prd/data/data1
dev = /dev/pdwlv03
vfs = jfs
log = /dev/loglv05
mount = true
check = false
options = rw
account = false
/prd/data/data2:
dev = /dev/pdwlv04
vfs = jfs
log = /dev/loglv05
mount = true
check = false
options = rw
account = false


/dev/lvppdwmy_app1 /prd/data jfs Apr 05 15:58 rw,log=/dev/loglv02
/dev/lv05 /prd/datanew jfs2 Apr 05 15:58 rw,log=/dev/lv04
/dev/pdwlv03 /prd/data/data1 jfs Apr 06 02:23 rw,log=/dev/loglv05
/dev/pdwlv04 /pdw/data/data2 jfs Apr 06 02:25 rw,log=/dev/loglv05

[purplemonkey]

Hi Manish,

Everything looks ok there, except for the stanza on the "/prd/data/data1" filesystem.

I can see for that stanza there is no semi-colon after the filesystem name, which could produce unpredictable results, and could be a possible cause of your issue..

Example of your output:

/prd/data/data1
dev = /dev/pdwlv03
vfs = jfs
log = /dev/loglv05
mount = true
check = false
options = rw
account = false

And another stanza with the correct syntax..

/prd/data/data2:
dev = /dev/pdwlv04
vfs = jfs
log = /dev/loglv05
mount = true
check = false
options = rw
account = false

Also I can see the /dev/pdwlv04 is mounted on another mountpoint than is configured in the /etc/filesystems..

Output from mount:
/dev/pdwlv04 /pdw/data/data2 jfs Apr 06 02:25 rw,log=/dev/loglv05
Output from /etc/filesystems:
/prd/data/data2:
dev = /dev/pdwlv04

[ManishMandvia]

Its was typo error from my side.: is there in /etc/filesytems &

Output from mount:
/dev/pdwlv04 /prod/data/data2 jfs Apr 06 02:25 rw,log=/dev/loglv05
Output from /etc/filesystems:
/prod/data/data2:
dev = /dev/pdwlv04

[ManishMandvia]

PDW typo error

Output from mount:
/dev/pdwlv04 /prd/data/data2 jfs Apr 06 02:25 rw,log=/dev/loglv05
Output from /etc/filesystems:
/prd/data/data2:
dev = /dev/pdwlv04

[ajay]

in the stanza below you should write 'true' instead of 'false' for the parameter "mount"

prd/data:
dev = /dev/lvppdwmy_app1
vfs = jfs
log = /dev/loglv02
mount = false
check = false