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bdf not showing output

 
Yogesh Yadav
Occasional Advisor

bdf not showing output

Hi All,

In my server bdf is not showing output,

Glance is showing disk utlization is 100%.

sar output is below.


$ sar -d 5

HP-UX ggnbil32 B.11.23 U ia64 07/02/09

19:50:17 device %busy avque r+w/s blks/s avwait avserv
19:50:22 c0t0d0 99.60 68.08 591 12887 114.28 13.50
c2t0d0 77.69 3.41 553 12757 4.43 8.01
c8t4d1 0.40 0.50 5 40 0.00 0.53
c10t4d1 0.60 0.50 5 72 0.00 1.19


Regards
Yogesh Yadav
10 REPLIES

Re: bdf not showing output

100% busy disks in glance and sar mean almost nothing...

when you say bdf is showing no output, do you mean bdf hangs or just comes back to the prompt with nothing?

HTH

Duncan

HTH

Duncan
Yogesh Yadav
Occasional Advisor

Re: bdf not showing output

Hi Duncan

No when i run bdf command it hangs, No output come.
Tingli
Esteemed Contributor

Re: bdf not showing output

One reason can be a mount point is failed. Either the local or nfs mount point failure can cause bdf hang. You can use command mount instead.
Ganesan R
Honored Contributor

Re: bdf not showing output

Hi Yogesh,

If bdf hangs, it could be due to stale NFS filesystems.

Check if you have lost any NFS filesystem connectivity.
Best wishes,

Ganesh.

Re: bdf not showing output

so take a look at /etc/mnttab - do you see an NFS filesystem in there? That's probably what made it hang... you'll need to get that system to start responding again for the bdf to come back.

alternatively try:

bdf -sl

which doesn't attempt to sync filesystems and only looks at local filesystems...

HTH

Duncan

HTH

Duncan
Yogesh Yadav
Occasional Advisor

Re: bdf not showing output

Thanks for your replay,

bdf -sl it is showing,than why it is not showing bdf output , below is mnttab file output

$ cat /etc/mnttab
/dev/vg00/lvol3 / vxfs ioerror=mwdisable,delaylog,dev=40000003 0 1 1243120769
/dev/vg00/lvol1 /stand vxfs ioerror=mwdisable,log,tranflush,dev=40000001 0 0 1243120771
/dev/vg00/lvol9 /var vxfs ioerror=mwdisable,delaylog,dev=40000009 0 0 1243120787
/dev/vg00/lvol4 /var/adm/crash vxfs ioerror=mwdisable,delaylog,dev=40000004 0 0 1243120787
/dev/vg00/lvol8 /usr vxfs ioerror=mwdisable,delaylog,dev=40000008 0 0 1243120788
/dev/vg00/lvol7 /tmp vxfs ioerror=mwdisable,delaylog,dev=40000007 0 0 1243120788
/dev/vg00/lvol6 /opt vxfs ioerror=mwdisable,delaylog,dev=40000006 0 0 1243120788
/dev/vg00/lvol5 /home vxfs ioerror=mwdisable,delaylog,dev=40000005 0 0 1243120788
-hosts /net autofs ignore,indirect,nosuid,soft,nobrowse,dev=0 0 0 1243120825
/dev/CATVG7/oraclehomecat /oraclehomecat vxfs ioerror=mwdisable,delaylog,dev=400f0001 0 0 1243122865
/dev/CATVG7/arbordircat /arbordircat vxfs ioerror=mwdisable,delaylog,dev=400f0002 0 0 1243122865
/dev/CATVG7/archcat /archcat vxfs ioerror=mwdisable,delaylog,dev=400f0003 0 0 1243122866
/dev/vg_tux/lv_oracle_tux /oraclehometux vxfs ioerror=mwdisable,delaylog,dev=40110001 0 0 1243353776
/dev/vg_tux/lv_arbor_tux /arbordirtux vxfs ioerror=mwdisable,delaylog,dev=40110002 0 0 1243353806
$

Regards
Yogesh Yadav
Bill Hassell
Honored Contributor

Re: bdf not showing output

As mentioned before, bdf is hanging because you have bad NFS mountpoints. By using bdf -l, you are bypassing the bad network filesystems. Either the network filesystem server is doww, or the network connection is down. This is normal behavior for bdf (hang when trying to query dead NFS mountpoints).


Bill Hassell, sysadmin
Suraj K Sankari
Honored Contributor

Re: bdf not showing output

Hi,

As bill said because of NFS file system you are not able to do bdf, same problem I too also faced what I did is I put a hash mark all NFS file system in /etc/fstab then I took a reboot.

After that manually I mount all nfs file system.

Suraj
Yogesh Yadav
Occasional Advisor

Re: bdf not showing output

Hi All,

When i tried bdf -l than it also hangs,

but when i used bdf -sl than it work.

i think there is some other issue not related to NFS .

we have changed primary boot disk after that, we are facing same issue.mirroring is also taken also lot of time around 6 hour's.

Thanks & Regards
Yogesh Yadav
Aneesh Mohan
Honored Contributor

Re: bdf not showing output

Hi,

Most probably the disk is bad.

19:50:17 device %busy avque r+w/s blks/s avwait avserv
19:50:22 c0t0d0 99.60 68.08 591 12887 114.28 13.50

Regards,
Aneesh