Atul Tyagi wrote:
Hi All,
I am facing a little problem. I guess its more of a conceptual problem
rather than a OS issue.
One of my software raid partiton /dev/md4 is about 30 GB. I had put a file
of about 18GB in that jus for few mins and then deleted that. Now even
after
about 6 hrs. My RHEL4 system gives me weird output. following are the
outputs that might help you understand.
df -h
===
[root@pingu ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/md0 5.0G 2.7G 2.1G 56% /
/dev/md1 99M 17M 78M 18% /boot
none 1014M 0 1014M 0% /dev/shm
/dev/md2 5.0G 190M 4.5G 4% /var
/dev/md4 30G 22G 5.9G 79% /usr/local/test
du -hs
=====
[root@pingu ~]# du -hs /usr/local/test
2.7G /usr/local/test
Can some one please clear my doubt and explain why there is a such a hugh
difference in both the commands. Disk usage shown by df -h is 22G where as
du shows 2.7G.
Would appriciate any pointer to this problem.
Thanks,
Atul
Is the file still open? A file which is open can have it's i-node deleted from
the directory containing it, but the actual disk space will not be released
until the file is closed.
Check for open file descriptors. A common cause is a large log file held open by
syslog even after the file has been deleted.
--
Nigel Wade, System Administrator, Space Plasma Physics Group,
University of Leicester, Leicester, LE1 7RH, UK
E-mail : nmw@xxxxxxxxxxxx
Phone : +44 (0)116 2523548, Fax : +44 (0)116 2523555
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