NFS keeps hanging

[J Andersen]

I have just installed a new server, HP Integrity rx2620, with HP-UX 11.31. I mount some nfs filesystems from another server (running Red Hat Linux AS 3); this server is our main fileserver and no other machine has any problem. However, this new one keeps hanging on nfs after a short time.

The networking seems to be OK on both machines and the nfs mounts seem to work for a while. How can I debug this?

[Peter Godron]

Hi Jan,
and congrats on your first question !

What is the nfs configuration of the servers i.e. hard/soft mount option, automounter ?

Depending on the set-up, you sometimes need 'keep alive' pings.

Please read:
http://66.34.90.71/ITRCForumsEtiquette/after.html

[J Andersen]

Thanks for replying!

OK, this is /etc/exports on the server (bldsrv):

/dtl *(rw,insecure,sync,no_root_squash)
/home1 *(rw,insecure,sync,no_root_squash)

And this is /etc/fstab on the client:

bldsrv:/home1 /home1 nfs rw,suid 0 0
bldsrv:/dtl /dtl nfs rw,suid 0 0

I can't find anything about 'keep alive' anywhere in the docs; but I am not sure it would make any difference. It seems to die in the middle of a lot of activity.