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01-13-2004 07:45 AM
01-13-2004 07:45 AM
i have a 500MG vg00/root, the usage was up to
92%, so I removed a 100MG file, but the % used hasn't changed. One of our engineers said it had to do with space for overhead management. can some expound, or recommend how I can fix the problem?
thanks
Solved! Go to Solution.
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01-13-2004 07:53 AM
01-13-2004 07:53 AM
Re: bdf + f/s issue
Geno
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01-13-2004 07:53 AM
01-13-2004 07:53 AM
Re: bdf + f/s issue
Removing a file (unlinking in UNIX speak) only reduces the link count. If the link count is zero, the directory entry is removed. The file is not actually removed until all processes which had the file open either close the file or terminate. You need to use fuser or better lsof to find the process that is still using the file and terminate it.
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01-13-2004 07:55 AM
01-13-2004 07:55 AM
SolutionIf you removed 100MB file, the usage would definitely change as the overhead is inclusive of 92%.
The file you removed is being used by a process. Unless the process releases it, you won't see the difference utilization.
What you can do is to run "lsof" and find out the open files. If you scroll through the output, you will find a line where the 7th column is ~100MB with 8 column indicating hte logical volume for vg00/root. The first and second columns give you the process and the pid respectively. Make sure it is not going to impact the system if you shutdown the process.
You can get lsof from
ftp://vic.cc.purdue.edu/pub/tools/unix/lsof/
Once it is installed, you can run it as
/opt/lsof/bin/lsof /dev/vg00/lvol3 > /tmp/lsof.out.
-Sri
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01-13-2004 07:56 AM
01-13-2004 07:56 AM
Re: bdf + f/s issue
You probably removed an open file. You will have to find the process that keeps the file open. lsof is a great tool for these kinds of actions.
Hope this helps,
Robert-Jan
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01-13-2004 08:34 AM
01-13-2004 08:34 AM