Space usage: du -ks and bdf do not show same info.

[Olga_1]

Hello,

Can somebody tell me why du -ks shows 12G used space and bdf shows 24G used:

root:/>du -ks /u01
12752866 /u01
root:/>bdf /u01
Filesystem kbytes used avail %used Mounted on
/dev/vg01/u01 25624576 24127510 1403609 95% /u01

[Ivan Krastev]

Search in forums - there are too many questions about that.

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=992662

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=664105


regards,
ivan

[Oviwan]

Hey

search in this forum you will find a lot of threads:

e.g.
http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=1123948

Regards

[Hein van den Heuvel · Accepted solution]

Hello Olga,

Please check with google on the many many prior discussions, even here in this forum:

Google: du bdf used +site:itrc.hp.com

Typically the factors involded are large files already deleted but still in use, and SPARSE files. /tmp files in general and Oracle TEMPORARY database file specifically being involved.

Hope this helps some,
Hein van den Heuvel (at gmail dot com)
HvdH Performance Consulting

[Olga_1]

Thank you all

[Sunny Jaisinghani]

This is a post from another thread.

Usually I have seen decrepancies from output of du and bdf and the reason is some open file due to a process which was killed/terminated without releasing/closing the file.
You can check from lsof for open files in /u01.

Regards