Force NFS to version 2 on 11.23 IA64

[Jessie Loch]

I have a 11.23 server that I am trying to mount NFS volumes on. How can I force this machine to only use NFS version 2?

The server is a Solaris machine with ZFS and there is a bug that only affects 11.23. The solution provided by Sun is to use NFSv2 or upgrade to 11.31. I cannot upgrade the machine so my only option is to use NFSv2. Other machines are accessing the NFS volume so I cannot change the NFS server to use version 2.

When I mount the volumes they are mounting as version 3. I added the vers=2 option but that seems to be ignored.

I've tried mounting the volumes using automount, fstab and manually but the result is always the same.

Thanks

[Ismail Azad]

Hi jessie,

Here is a suggestion. Turn the VERSMIN and VERSMAX parameters to 2 in /etc/default/nfs . See if it takes only NFS v2 after the appropriate services are started and stopped.

Regards
Ismail Azad

[Jessie Loch]

Nope that didn't seem to do anything. The file /etc/default/nfs did not exist so I created it.

[Manuel Urena]

Jessie,

What version of solaris are you using? I assume 10.
The file /etc/default/nfs should be on the solaris machine already.

And by default has the following, so default settings should work:

# Sets the minimum version of the NFS protocol that will be registered
# and offered by the server. The default is 2.
#NFS_SERVER_VERSMIN=2

Just for the sake of it.
Did you also do the following on the Solaris box?

# svcadm restart nfs/server


Also try doing showmount -e from the HP-UX server to see if you can see the shares.

Hope it helps,

Manuel

[Dave Olker]

What is the exact syntax you're using on the 11i v2 client to mount the filesystem. The "vers=2" option should not be ignored by the server so I'm wondering if you're using the correct syntax.

Dave

[Jessie Loch]

I am trying to get it to work with just mount to keep it simple.

mount -F nfs -o vers=2 server:/vol /sever/vol

After it mounts, the mount command shows defaults,dev=7600000a as the options.

The server is Solaris 10 with ZFS as the volume type and I cannot change that since it is sharing many volumes to many clients.

[Dave Olker]

What does "nfsstat -m" show when run on the 11i v2 NFS client?

Dave