1 title: Health of NFS mounts
7 This check probes the availability of NFS mounts. The Linux agent sends the
8 status of all NFS mounts, if the command line utility {waitmax} is available
9 (it is is used to avoid hanging if the NFS server is not responding). The
10 probe is done by trying a {stat -f} (system call {statfs(2)}) on the mount
11 point. If that lasts longer then 2 seconds, then the server is considered
14 When you install the Linux agent manually, please do not forget to also
15 install {waitmax} into {/usr/bin}. That file is shipped together with
16 the agent. When {waitmax} is missing, the agent will silently omit the
19 If the NFS mount is "stale", then {stat -f} returns immediately but with
20 a size of {-1}. The check detects that and results in a warning state.
22 Please note, that though this check outputs the current usage of the remote
23 filesystem, no levels can be defined for the used space and no performance
24 data is output. Please do a check for used space directly on the NFS server.
30 All NFS mounts are found automatically. This is done
31 by scanning {/proc/mounts}. The file {/etc/fstab}