NFS and NAS

[manu_5]

i am using HP 11.0 client to mount Nfs exported Netapps file system but i am not able to to do "ls -l" on the nfs mounted file system.It says NFS Server not reponding still trying ..but the problem is not their with other clients.

[Robert-Jan Goossens]

Hi Manu,

Try mounting the nfs filesytem with the option soft.

mount -o soft
man mount_nfs

Robert-Jan.

[manu_5]

Hi,
It does not help..gives the same error.Infact this is happening thru automounter but to debug the problem i tried mounting manually and found its still gives problems.so either way (nfs or automount ) it does not work.

[manu_5]

Plus i have found that its happening only on 11.0 not on 11i.

[Stefan Farrelly]

Its to do with your mount options. do NOT use the soft option. Netapps have a webpage detailing all the nfs changes you need to make to use it reliably on 11/11i. Heres the link;

http://www.netapp.com/tech_library/3146.html

We use the following nfs mount options and its 100% reliable;

bg,hard,intr,retry=999,retrans=999,rsize=32768,wsize=32768,proto=tcp,vers=3

Read the netapps webpage, its all there, from patches to hidden kernel parameters. You should follow all their advice, we had to before it became 100% reliable.

[manu_5]

Hi I am using automounter with Netapps so these options will not work for me but i tried with these options and it gives error with "proto+tcp " option

[manu_5]

pLUS i have checked and my system has all the bundles and patches mentioned on the netapp site.

[Robert-Jan Goossens]

Manu,

Take a look at this solution,

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x881c9607df6ed711abdc0090277a778c,00.html

Robert-Jan.

[Michael Steele_2]

A) Automounter isn't going to work if you can't NFS so I would strive to get NFS.

B) Using NFS version 3?

C) rpcinfo -p host / client

(* rpcbind, status, nfs, mountd, nlockmgr, llockmgr *)

D) Here's a good example:

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x60b1e7613948d5118fef0090279cd0f9,00.html

[manu_5]

yes i am using nfs v 3 ,

[V. Nyga]

Hi Manu,

check if client knows ip address of netapp.
Check if netapp knows the client.
Check if client is allowed at netapp to get access to the directories. It has to be done for every client!

Regards
Volkmar

[manu_5]

Hi ,
Yes all that is fine .Client knows netapp and netapp knows client and access is also proper.

[Mike Plunkett_1]

Is the NAS in hybrid mode (cifs & nfs)? If so, I suspect the cifs side of the house has done some file operation(s) which may have taken over the privs for the file system.

mp

[Mike Plunkett_1]

Another thing, has the filer been rebooted recently? I remember a problem once when the config files weren't saved properly. I can't remember the file...it was some file in /etc on the filer (I don't think it was the exports file, but it's worth taking a look at that, also).

mp

[V. Nyga]

Hi Manu,

I'm also running Netapp and HP 10.20 and 11.0 - without problems.
One more suggestion to 'NFS server not responding ..' - check your network.
Is your LAN card running with the same speed as your hub?

Volkmar

[Mark Ellzey]

Hi,

As Volkmar said, be sure to check your NIC speed/duplex/autonegotiate and be absolutely sure it matches your hub/switch. I've seen this problem with 10.20 and 11.11 and a NetApp. The symptom is that it will work *sometimes*, then quit working and give the message that you cited. Just changing the network interface stuff fixed it in my case.

Mark