topic Re: bdf issue in Operating System - HP-UX

bdf issue

Lenin Dasan S. — Tue, 13 Nov 2007 06:07:10 GMT

when regular user issue a ' bdf ' command get the result as
' bdf: unable to lock /etc/mnttab after 100 tries
bdf: /etc/mnttab: Permission denied '

what could be the problem? any suggession?

Re: bdf issue

Steven E. Protter — Tue, 13 Nov 2007 06:17:57 GMT

Shalom,

bdf is trying to provide data on a stale NFS link.

Correct the NFS situation and the problem will be resolved.

/sbin/init.d/nfs.client stop
/sbin/init.d/nfs.server stop
/sbin/init.d/nfs.core stop
/sbin/init.d/nfs.core start
/sbin/init.d/nfs.server start
/sbin/init.d/nfs.client start

If the system is an NFS server itself this might create issues.

SEP

Re: bdf issue

Todd McDaniel_1 — Tue, 13 Nov 2007 11:51:11 GMT

I know in some cases, I have deleted the mnttab where I have had nfs mounts hang up to clear bdf hung processes and to restore bdf. We had a 3rd party product for monitoring that used bdf to track filesystem sizes... and it would hang whenever we had a stale nfs mount.

It restores it rather quickly so, type fast!

rm /etc/mnttab;bdf

Of course, the method detalied in the previous post is most desirable.

Re: bdf issue

Geoff Wild — Tue, 13 Nov 2007 12:02:46 GMT

Do a mount

Do you see any stale nfs?

Are you on 11.31?

If yes, then you can issue a umount -f /some/nfs/mountpoit

Rgds...Geoff

Re: bdf issue

Prashanth.D.S — Wed, 14 Nov 2007 19:28:27 GMT

Hi Lenin,

If your OS version is 11.23 then the issue seems to be fixed in PHKL_31500

( SR:8606365017 CR:JAGaf25654 )
Commands like mount, umount, df and sam which try to acquire
the lock on /etc/mnttab may hang. To reproduce the problem,
mount an NFS filesystem. Then stop the NFS service on the
NFS server, and execute bdf(1M). bdf(1M) will hang while
doing a stat, and any execution of mount or umount will....

Best Regards,
Prashanth

Re: bdf issue

Roberto Arias — Tue, 08 Jan 2008 15:23:39 GMT

Please Lenin try it:

>/etc/mnttab
mount -a
bdf

The file /etc/mnttab is database of Filesystem mounted, whith this you make the new database of this

regards