Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have 3 servers all with the same set of mount points. On one server loses it connection to the mount fairly often and the two other servers it never does. I cannot reconnect until I reboot the server. I have tried using both a static mount and autofs to connect.

The file server is sharing the folder with this statement in /etc/exports


I am also sharing several other folders the same way, but this is the only one that is ever dropped.

Any ideas on what is wrong?

share|improve this question
Anything in the output of dmesg or /var/log/messages? – Kamil Kisiel Aug 17 '09 at 23:58
Are all 3 servers using the same OS and version? Are 3 servers using the same NFS version? – fpmurphy1 Oct 18 '09 at 12:32

Try switching from a hard to soft mount flags.

Reconsider no_root_squash. It may be part of the problem (a user or app may be abusing privilege to kill the mount).

Look carefully for SELinux warnings of any kind.

Check and see if there are any files or subdirectories under the mount point, and use lsof to see if any process is keeping them open after mount is lost.

Post any log message here.

share|improve this answer

Sounds like maybe you're dropping packets somewhere? Have you checked the counters on the switch and the output from

netstat -s eth0
If the server is in the same building, and can afford a few seconds of downtime, try replacing the ethernet cable. Could also be that the switch is set to auto-negotiate, and the NIC is set to static (or vice-versa).

share|improve this answer
The only thing about it being a network issue is, why would one mount disappear and the 6 others I have continue working just fine? – Jason Christa Aug 18 '09 at 17:34

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.