NFS mount point problem

[Rdasuwal]

Hi Forum

I am trying to mount /NFS as nfs mountpoint on two servers ( A & B ) having OS OEL 5.
After mounting the nfs filesystem, both of them behave normally for around 10 mins and after that the NFS file handle become stale and the
mountpoints dont respond. While executing df -kh, the output hang out and the /var/log/messages show the following message:
May 27 15:48:56 earth mountd[3078]: Cannot export /NFS, possibly unsupported filesystem or fsid= required
May 28 04:04:20 earth kernel: nfs: server nas not responding, still trying
May 28 10:11:51 earth kernel: nfs: server nas not responding, still trying

The fstab enteries for /NFS mountpoint on both servers is :
nas:/NFS /NFS nfs rw,bg,hard,nointr,tcp,nfsvers=3,timeo=600,rsize=32 768,wsize=32768,acti
meo=0 1 2

/etc/export enteries on both server is :
/NFS *(rw,sync,no_wdelay,insecure_locks,no_root_squash)


Please let me know how can I fix this issue.

Thanks in advance,
Raj.

[scathefire]

is everything working on the server side?

when i set my NAS, I didn't use a wildcard in /etc/exports. I'm not so say that you can't, but I didn't.

are all the services on?

rpcinfo -p

maybe something is not on, then try these commands to make sure all the services have been started:

rpc.portmap
rpc.mountd
rpc.nfsd
rpc.statd
rpc.lockd (if necessary)
rpc.rquotad

you may want to check firewall settings too

[Rdasuwal]

I didnt find the rquotad. Is there any package I have to install. Below is the output of command.

[root@earth ~]# rpcinfo -p
program vers proto port
100000 2 tcp 111 portmapper
100000 2 udp 111 portmapper
100024 1 udp 970 status
100024 1 tcp 973 status
100011 1 udp 681 rquotad
100011 2 udp 681 rquotad
100011 1 tcp 684 rquotad
100011 2 tcp 684 rquotad
100003 2 udp 2049 nfs
100003 3 udp 2049 nfs
100003 4 udp 2049 nfs
100021 1 udp 26751 nlockmgr
100021 3 udp 26751 nlockmgr
100021 4 udp 26751 nlockmgr
100003 2 tcp 2049 nfs
100003 3 tcp 2049 nfs
100003 4 tcp 2049 nfs
100021 1 tcp 44269 nlockmgr
100021 3 tcp 44269 nlockmgr
100021 4 tcp 44269 nlockmgr
100005 1 udp 710 mountd
100005 1 tcp 713 mountd
100005 2 udp 710 mountd
100005 2 tcp 713 mountd
100005 3 udp 710 mountd
100005 3 tcp 713 mountd

[scathefire]

what happens when you manually mount it?

mount blah.blah.blah:/sharename /place/to/put/it

[Rdasuwal]

The mount point mounts fine only for 10 minutes after rebooting the servers. They turn stale afterwards.