Top Forums UNIX for Beginners Questions & Answers NFS server xxxxx not responding still trying Post 303031888 by bakunin on Thursday 7th of March 2019 04:17:30 AM
Originally Posted by Phat
We check and know that the NFS server is not available anymore. So we would like to unmount it, but no help.
The problem is not the NFS itself but the mount process. But the very first question is: which NFS? NFS3 works completely different than NFS4 (and NFS2 is still - theoretically - available although only rarely used these days).

Originally Posted by Phat
[root@yyyyyy] / > umount /mountpoint/
umount: Could not find anything to unmount

hmm... and it is still listed as "mounted" when you issue a mount command? Please check again because this looks unfamiliar.

Originally Posted by Phat
Also stop and start the nfs client, but still not help.
How did you do that? NFS is controlled by the "system resource controller" and you have to stop/start it from there. FIrst, get the status (if you are unsure, please post the output of these comamnds, enclosed in CODE-tags):

lssrc -g nfs

Then stop it and/or start it. Before stopping it check for exported directories in /etc/mtab. If this file is not empty there are exports defined. Make sure other hosts are not affected by the stopping of the service.:

stopsrc -g nfs
startsrc -g nfs

Before restarting the NFS check if there are NFS mounts defined in /etc/filesystems.
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