NFS

[Viktor Balogh]

>I am unable to find out ipaddress of blue as it is down

# nslookup blue

[Sarwan]

nslookup doesn't work as blue is down

[Gordon Sjodin]

I had a similar problem and ended up rebooting.

[Sarwan]

I have asked other NFS users for downtime. So i get go i am planning to down all NFS services and try to unmount the FS.
would that be a good idea what you guys feel???

[Sarwan]

Thanks to all for your valuable suggestion.

I had to restart the server blue and now the issue is resolved.

[Viktor Balogh]

>nslookup doesn't work as blue is down

??? It _should_ work on green unless bind was running on server blue. Either I misunderstood something or you didn't describe the situation clear. Try this command on green, (or on a running server):

# nslookup blue

and paste the output here.

[Sarwan]

Sorry i had to restart server green, blue is still down :)

[Sarwan]

Viktor,

#green>nslookup blue
Using /etc/hosts on: green

looking up FILES
Trying NIS
Trying DNS
*** dns1rrc.telcordia.com can't find blue: Non-existent domain

[Sarwan]

Issue resolved

[Viktor Balogh]

Sorry, this isn't meant to be an offense but you wrote it in your first post:

>This is mounted from Blue:/app

How could you mount it if the hostname 'blue' cannot be resolved on the NFS client (green)? Do not mix name resolution with the server itself. These are two separate thing. Even if the server 'blue' is down, there must be an entry in the DNS or in the hosts file (or anywhere else like NIS)

Maybe it is about decomissioning server 'blue' - and that's why you deleted the hostname in DNS/hosts, and the mount was established before when it still had an entry in DNS/hosts.

OK, I'm finished, and your problem is solved. Nice day :)