On 05/12/2016 10:23 AM, Stephen Berg (Contractor) wrote:
Having an issue with the df command. I need it to show me a
filesystem's physical mount point, but since I use NFS and automounts
quite a bit it chooses to show me the automount mount point instead.
It's screwing up the monitoring software I use, check_mk.
For instance:
/dev/VolGroup/home /export/home xfs defaults 1 2
That gets mounted as shown, but as soon as I login, the automounter
will mount it as /home and the check_mk check for that filesystem goes
into an unknown state since it can't find it any longer.
I've been unable to find any way to get df to show only physical mount
points and ignore automount mount points. I'm seeing this behavior on
most all my SL7.2 systems, SL6.7 doesn't seem to have this issue.
Came up with a kludge work-around for this issue. In the check_mk_agent
the command used is:
excludefs="-x smbfs -x cifs -x iso9660 -x udf -x nfsv4 -x nfs -x mvfs -x
zfs"
df -PTlk $excludefs | sed 1d
I replaced it with:
grep "/export/" /etc/fstab | awk '{print $2}' | xargs df -PTlk | sed 1d
; df -PTlk / /usr/src /var /boot | sed 1d
That command is all one line, probably gets wrapped after I send this
email.
It works for my environment, all my systems are configured in a very
similar way. File systems for /, /var, /boot and /usr/src. Any data
filesystems are in most every case mounted somewhere under /export. Will
probably have to re-do the kludge every time the check_mk_agent gets
updated, but that's not a huge deal.
--
Stephen Berg
Systems Administrator
NRL Code: 7320
Office: 228-688-5738
stephen.berg....@nrlssc.navy.mil
