topic Re: BDF command stucking in Operating System - HP-UX

BDF command stucking

Deeos — Wed, 07 Jul 2010 13:46:06 GMT

hi ,

can any one tell me!
why bdf command not responding
I mean, what valid reason behind of it in genrel cases.

Re: BDF command stucking

Vijaykumar_1 — Wed, 07 Jul 2010 13:48:44 GMT

NFS filesystems not getting mounted..

Do you have NFS filesystems on the server ?

Re: BDF command stucking

Pete Randall — Wed, 07 Jul 2010 13:54:19 GMT

As pointed out, it's most likely NFS mount points. Try running "bdf -l", just listing local file systems.

Pete

Re: BDF command stucking

Deeos — Wed, 07 Jul 2010 14:12:14 GMT

bdf -l output is coming

there is no nfs environment!

Re: BDF command stucking

V. Nyga — Wed, 07 Jul 2010 14:18:35 GMT

Hi,

can you give us the content of /etc/fstab
and your bdf -l output?

V.

Re: BDF command stucking

Deeos — Wed, 07 Jul 2010 14:18:55 GMT

can it problems of storage mount point itself?

Re: BDF command stucking

Suraj K Sankari — Wed, 07 Jul 2010 22:10:48 GMT

Hi,
2 3 things need to be check
1.Check is ther any NFS file system is there?
2.because of disk may be bad ?
3.check the disk/cpu/memory usages it may vary high.

Suraj

Re: BDF command stucking

Raj D. — Wed, 07 Jul 2010 23:07:08 GMT

deeos,
Check if # bdf -l # command is getting through.
Most likely you have NFS issue. In that case you have to reboot(most likely) to fix the problem.

Also check:
# ps -ef | grep bdf | grep -v grep
To see since when bdf is hanging and the hung sessions.

hth,
Raj.

Re: BDF command stucking

Bill Hassell — Wed, 07 Jul 2010 23:33:00 GMT

Since you did not supply the model of your system or the version of HP-UX, I'll have to give things that may not work because you have an older system. Start with:

bdf -s

If this completes immediately, the one or more of the mountpoints is extremely busy changing information in the mountpoint directories. Or there are disk errors being recorded in syslog.

If this is not a valid option, then try each mountpoint in fstab like this:

bdf /stand
bdf /
bdf /tmp
bdf /var
bdf /usr
bdf /home

and so on. Most should complete immediately so the one (or ones?) that is hung is the problem.

Also run sar -d 2 4

to look at disk response times. Do you have both internal disks and external fibre disks? If fibre, are they part of a larger SAN switch? And finally, did the problem just start or has bdf been stuck for a long time.

Re: BDF command stucking

Deeos — Fri, 09 Jul 2010 14:58:14 GMT

now , bdf is coming