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06-14-2004 10:57 AM
06-14-2004 10:57 AM
Problem with Un-mounting
/dev/vg00/lvol10_sybase
1302233 991798 180211 85% /sybase
/dev/vg_data2/data2_lvol1
7309292 1169958 5408404 18% /sybase/test/backups
/dev/vg_data1/syb_stbs_lite_12_5
1025027 3 922521 0% /sybase/stbs_lite_125
/dev/vg_xp256_04/xp256_vg04_rds_125
1001729 788856 112700 87% /sybase/rds_prod_125
/dev/vg_data1/syb_rds_dev_125
800811 587513 133216 82% /sybase/rds_dev_125
I want to un-mount the â /sybase/rds_dev_125â file system and I am getting the message that â Device is Busyâ , if I try to run the â fuserâ command it does not show any process which using â /sybase/rds_dev_125â file system.
fuser -u /sybase/rds_dev_125
/sybase/rds_dev_125:
What could be the reason? Is it because of the fact that â /sybase/rds_dev_125â is mounted on â /sybaseâ and it is being used by lots of processes.
It looks like that I have to make sure that even â /sybaseâ is also not being used by anyone.
I really need to un-mount this file system but I canâ t touch other. What could be
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06-14-2004 11:00 AM
06-14-2004 11:00 AM
Re: Problem with Un-mounting
fuser -cu /sybase/rds_dev_125
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06-14-2004 11:30 AM
06-14-2004 11:30 AM
Re: Problem with Un-mounting
# fuser -cu /sybase/rds_dev_125
# fuser -cku /sybase/rds_dev_125
# umount /sybase/rds_dev_125
Make sure your pwd is not /sybase/rds_dev_125 :-)
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06-14-2004 11:34 AM
06-14-2004 11:34 AM
Re: Problem with Un-mounting
I tried the command as per your advice and it made me more confused.
# fuser -cu /sybase/rds_dev_125
/sybase/rds_dev_125: 4819o(sybase)
# ps â ef | grep 4819
sybase 4819 4818 0 Jun 11 ? 56:36 /sybase/prism_test_12_5/ASE-12_T
root 18439 18392 2 16:30:03 pts/td 0:00 grep 4819
It is complaining about a process which belongs to a different file system.
/sybase/prism_test_12_5/ is a separate file system but mounted under /sybase, why is it complaining about this?
Any help would be appreciated.
Thank
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06-14-2004 11:40 AM
06-14-2004 11:40 AM
Re: Problem with Un-mounting
fuser -cku /sybase/rds_dev_125
Now i know that it will kill a process whch has nothing to do with /sybase/rds_dev_125.
I don't know why
fuser -cu /sybase/rds_dev_125
reorting that process which belongs toa other file system.
thanks
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06-14-2004 12:04 PM
06-14-2004 12:04 PM
Re: Problem with Un-mounting
Do you have lsof installed in the system ?
if not download and install lsof from
http://hpux.cs.utah.edu/hppd/hpux/Sysadmin/lsof-4.70/
and then
lsof -p 4819 | grep "rds_dev_125"
it will tell u the files being used by the process that belong to the fs /sybase/rds_dev_125.
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06-14-2004 01:57 PM
06-14-2004 01:57 PM
Re: Problem with Un-mounting
Of you have lsof you can see a list of open files and their corresponding process .
This process must be stopped , so that it can close the file before you can unmount the fiel system . If you are not sure what this process and the impact of it , if it is killed , then youe best bet isto to stop sybase completely and then unmount it .
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06-16-2004 12:18 AM
06-16-2004 12:18 AM
Re: Problem with Un-mounting
umount /sybase/prism_test_12_5
first, then
umount /sybase
if I understand your question.
Rt.
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06-16-2004 12:22 AM
06-16-2004 12:22 AM
Re: Problem with Un-mounting
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06-16-2004 12:28 AM
06-16-2004 12:28 AM
Re: Problem with Un-mounting
Rgds...Geoff