topic Re: NFS server not responding in Operating System - HP-UX

NFS server not responding

bond007 — Tue, 14 Mar 2006 00:25:06 GMT

Hi All,

My cliets are getting disconnected from the NFS server inermittently.

I do see the following error in syslog

vmunix: NFS server not responding still trying

What could be issue, i have checked network connection related thing, all are alright.

pls give your inputs

Thanks and regards,

Bond

Re: NFS server not responding

Muthukumar_5 — Tue, 14 Mar 2006 00:28:14 GMT

NFS server on is not running. Login into that machine check syslog.log or dmesg related informations.

# /sbin/init.d/nfs.server stop
# /sbin/init.d/nfs.server start

# /sbin/init.d/nfs.core stop
# /sbin/init.d/nfs.core start

will help to restart NFS server.

--
Muthu

Re: NFS server not responding

Arunvijai_4 — Tue, 14 Mar 2006 00:29:35 GMT

Hello,

This is due to NFS server is not reachable or not responding. You need to restart NFS server by,

# /sbin/init.d/nfs.server stop
# /sbin/init.d/nfs.server start

# /sbin/init.d/nfs.core stop
# /sbin/init.d/nfs.core start

-Arun

Re: NFS server not responding

RAC_1 — Tue, 14 Mar 2006 00:34:06 GMT

You may have network issues?? Is server available all the time?? A continuous ping to server may give some information.
From client, check
ping
nslookup (on ip and on host name)

Re: NFS server not responding

Muthukumar_5 — Tue, 14 Mar 2006 00:36:26 GMT

Refer the threads in,

http://www2.itrc.hp.com/service/james/search.do?searchtext=NFS+server+not+responding&submit.x=0&submit.y=0&hpl=1&todo=search&searchcriteria=allwords&from=forums&searchcategory=ALL&rn=25&presort=rank&source=7000&esc=us.support.itrc.hp.com&wpa=forums1.itrc.hp.com%3A80&origin=0&chkServStor=on

for more knowledge and details.

--
Muthu

Re: NFS server not responding

Senthil Prabu.S_1 — Tue, 14 Mar 2006 00:40:39 GMT

Hi Chan,
A simpe idea, but looks funny. If is not a production machine, and you can reboot the machine. Then please reboot the machine.

This have helped me many times, when I faced the same problem. This also saves your time for
debugging without reboot.

note:
You can assign zero points, if this is a stupid answer,but I guess this will definetly help you.

HTH,
Prabu.S

Re: NFS server not responding

Senthil Prabu.S_1 — Tue, 14 Mar 2006 00:43:47 GMT

I mean to say, give init 6 on the NFS client machine.

Re: NFS server not responding

Muthukumar_5 — Tue, 14 Mar 2006 00:50:40 GMT

Prabhu,

What is the needed to reboot the NFS client when the problem is with NFS Server?

Bond,

May be you can restart NFS client in client side as,

# /sbin/init.d/nfs.client stop
# /sbin/init.d/nfs.client start

--
Muthu

Re: NFS server not responding

Sivakumar TS — Tue, 14 Mar 2006 00:59:11 GMT

Hi Bond,

Apart from this pls check the speed of LAN card on both NFS server and NFS client have 100Full Duplex and check if the cable/switch in capable of this.

Regards,

Siva

Re: NFS server not responding

Sivakumar TS — Tue, 14 Mar 2006 01:01:46 GMT

Also look for the valus NUM_NFSD into /etc/rc.config.d/nfsconf

may be it that needs to be increased.

Siva

Re: NFS server not responding

Senthil Prabu.S_1 — Tue, 14 Mar 2006 01:35:04 GMT

Muthukumar,
I guess, the error message is coming on the NFS client. So, I suggested the clients to be rebooted.

What you see strange in this..:-)

Re: NFS server not responding

Senthil Kumar .A_1 — Tue, 14 Mar 2006 01:45:16 GMT

Hi,

I hope you have done basic troubleshooting such as ping,nslookup and rpc related checks.Try analyzing "nfsstat" outputs.

If still you contend Network is not the cause, try installing the latest patches both on NFS Client and NFS server.

"lan driver" patch, "ARPA Transport patch, and "NFS megapatch" for your release.

You will be able to download the patches at http://itrc.hp.com

Regards,
Senthil Kumar .A

Re: NFS server not responding

Senthil Kumar .A_1 — Tue, 14 Mar 2006 01:47:03 GMT

Hi again,

Try this doc..

http://www1.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000079998580

Regards,
Senthil Kumar .A

Re: NFS server not responding

Sivakumar TS — Wed, 15 Mar 2006 04:52:18 GMT

Hi Bond,

Also you can use #netstat on the server to check whether tcp and udp packets has any collision,etc.

Regards,

Siva.

Re: NFS server not responding

Johnny Damtoft — Wed, 15 Mar 2006 05:01:46 GMT

Hi Bond,

It seems that your NFS is getting disconnected. Have your checked posible network problems?

I would start looking at the LAN speed and duplex. We have setup all of our servers and network switches to 100 mbit, full duplex (static)

Check the docs here:
http://docs.hp.com/en/J4254-90003/ch01s03.html

Don't forget to set it at both ends, the server and switch needs to have the same setting.

NB. Not trust auto-negotiation.

// Johnny

Re: NFS server not responding

skt_skt — Wed, 27 Dec 2006 22:17:59 GMT

check the entries in /etc/rc.config.d/nfsconf for both NFS_CLIENT and NFS_SERVER on both server and client side and bounce the nfs server/client services