topic Re: what's wrong with the bdf? in Operating System - HP-UX

what's wrong with the bdf?

wangzhida — Wed, 22 Mar 2006 00:59:19 GMT

Hi,all:
I got different value of the size of /data volumn, when I use 'dbf' and 'du -sk' separately.
here goes the results.
---------------------------------------------
%bdf
Filesystem kbytes used avail %used Mounted on
/dev/vg_data/lv_data
227278848 147486304 79169240 65% /data

%du -sk /data
75148424 /data
-----------------------------------------------
now you see, the 'used' value that generated by dbf is much larger than 'du -sk'.
which one is the right one? how should I deal with it?

thanks!

Re: what's wrong with the bdf?

Arunvijai_4 — Wed, 22 Mar 2006 01:02:17 GMT

Hello,

You can try with "sync" to syncronize any recent changes happened to the file system and try to run again.

You can check this thread for more explanation

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=883822

-Arun

Re: what's wrong with the bdf?

Muthukumar_5 — Wed, 22 Mar 2006 01:03:04 GMT

Refer this:

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=143084

--
Muthu

Re: what's wrong with the bdf?

RAC_1 — Wed, 22 Mar 2006 01:05:35 GMT

There is a difference between du and bdf works. there will be difference in their outputs, but should be very big. Did you delet/move any files, while process was accessing them?? Do you have any sparse files in that file system?

Re: what's wrong with the bdf?

Steven E. Protter — Wed, 22 Mar 2006 01:23:53 GMT

Shalom,

Nothing is wrong with either du or bdf.

bdf will not show space from deleted files as available until any processes that have open handles on these files are terminated.

A reboot will make the results consistent, as will a killing of proceses listed on this command:

fuser -cu /data

Add the k parameter to the above command at your own risk and fuser will kill them. Be careful, its a really good way to bring down a production system.

SEP

Re: what's wrong with the bdf?

wangzhida — Wed, 22 Mar 2006 01:50:13 GMT

I got these stuff here:
--------------------------------------------
# ps -ef|grep 873|more|grep -v grep
root 873 772 0 Mar 16 ? 0:55 /opt/omni/lbin/vbda -bmaname drive1 -type 2 -start 1142460074 -
root 874 873 0 Mar 16 ? 1:15 /opt/omni/lbin/vbda -bmaname drive1 -type 2 -start 1142460074 -
---------------------------------------------
what's vbda? there's no man manual for it.

Re: what's wrong with the bdf?

wangzhida — Wed, 22 Mar 2006 01:50:59 GMT

sorry. forgot these
# fuser -cu /data
/data: 873o(root)

Re: what's wrong with the bdf?

RAC_1 — Wed, 22 Mar 2006 01:55:46 GMT

vbda is part of omniback backup software.

Re: what's wrong with the bdf?

Robert-Jan Goossens_1 — Wed, 22 Mar 2006 01:58:06 GMT

Hi,

/opt/omni/lbin/vbda is a backup session from HP OpenView Storage Data Protector. It looks like the session is hanging (March 16). Check your data protector logfiles for errors on that date.

Best regards,
Robert-Jan

Re: what's wrong with the bdf?

Yogeeraj_1 — Wed, 22 Mar 2006 02:21:09 GMT

hi,

a backup is most probably in progress, to check check this, please run:

omnidb -session

kind regards
yogeeraj

Re: what's wrong with the bdf?

wangzhida — Wed, 22 Mar 2006 02:31:53 GMT

thank you all! I've resolved the problem. thank you.

Re: what's wrong with the bdf?

wangzhida — Wed, 22 Mar 2006 02:33:07 GMT

the problem has been solved!