File System

Check if FS is Mounted (check_mount.sh) AIX, NFS, UNIX, Linux, Solaris

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Description:

Shell Script for Nagios, checks if the FS given is mounted. Assumes that you are checking NFS by default, but it can check for any type of FS:

NFS, NFSv4, CIFS, JFS, JFS2, EXT2, EXT3, EXT4, etc (If a FS is mounted more than once it gives a Warning & reports the number of mounts).

This script do not check fstab or /etc/filesystem or other tab entries, as it is designed to consume as little CPU time as possible and to be used in different OS types.

It is a simple script, but it detects mounts of practically any type of FS, and multiple instances mounted of the same FS.

Verified compatible with the following OS:
IBM AIX v5.2-v7.2
RHEL v4.8-v6.6, RHL v9
Ubuntu v10.04-v18.04 LTS
SuSe v11
CentOS v6.5-10
CygWin v2.0.4-v2.5.1 & BusyBox v1.22.1
Oracle Solaris x86 v10-v11.3
SCO OpenServer v6.0.0
SCO UnixWare v7.1.4+, v7.1.4

Released under GPLv3. Author: Carlos Ijalba – 2016-2018.

Current Version

1.02

Last Release Date

2018-08-21

Compatible With

  • Nagios 3.x
  • Nagios 4.x
  • Nagios XI

Owner

Carlos Ijalba

Website

https://ijalba.wordpress.com/

License

GPL

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Project Files
FileDescription
check_mount.sh

check_mount.sh shell script

Project Photos
Project Notes
Shell Script for Nagios, checks if the FS passed on $1 is mounted under Mount Type $2. If no parameter passed on $2 NFS type is assumed by default. This script do not check fstab or /etc/filesystem or other tab entries, as it is designed to consume as little CPU time as possible and to be used in different OS types. It is a simple script, but it detects mounts of practically any type of FS, and multiple instances mounted of the same FS. Verified compatible with the following OS: IBM AIX v5.2-v7.2 RHEL v4.8-v6.6, RHL v9 Ubuntu v10.04-v18.04 LTS SuSe v11 CentOS v6.5-10 CygWin v2.0.4-v2.5.1 & BusyBox v1.22.1 Oracle Solaris x86 v10-v11.3 SCO OpenServer v6.0.0 SCO UnixWare v7.1.4+, v7.1.4 Released under GPLv3, feel free to use and modify, please give credits and references when appropriate. Author: Carlos Ijalba - 2016-2018. Alerts given to Nagios: OK - "/exports" mounted under "NFS". CRITICAL - "/exports" not mounted under "NFS". WARNING - "/exports" is mounted several times! (3) ------------- USE: check_mount.sh [ $1 - Filesystem ] | optional: [ $2 - Type (NFS by default)] Reports: OK - $1 mounted under $2. CRITICAL - $1 not mounted under $2. WARNING - $1 is mounted several times! (number of times mounted) Examples: check_mount.sh /developer/logs <-- check NFS mount of /developer/logs check_mount.sh /developer cifs <-- check CIFS mount of /developer check_mount.sh /ora12c nfs4 <-- check NFSv4 mount of /ora12c check_mount.sh /db2 ext3 <-- check EXT3 mount of /db2 check_mount.sh /CICS jfs2 <-- check JFS2 mount of /CICS ------------- NAGIOS Plugin Version Control: After the Nagios Status reported, the script shows the script's name and version, very useful to track nagios services versions and scripts invoked by a service/command.
Reviews (2) Add a Review
Great plugin
by jamespo, December 31, 2018
Just works out of the box with minimal dependencies
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Useful, but a bit sloppy
by candreasen, May 31, 2018
Had to modify the script as shown below so that it wouldn't alarm if one mount was a subset of another (e.g. /mnt/foo and /mnt/foo_new would alarm, saying "/mnt/foo is mounted several times (2)"

Old line 107:
MOUNTED=`mount | grep $MOUNT | grep $FS | wc -l | tr -s " "` # execute the command to check the mount...

New line 107:
MOUNTED=`mount | grep "$MOUNT" | grep " $FS " | wc -l | tr -s " "` # execute the command to check the mount...
Owner's Reply:

Thanks for the bug report candreasen, I have modified the script with a bug correction and added a small CPU & memory speedup.

Note that your suggested line also won't work correctly in all OS, so i have only put one space after the FS, to act as a delimiter, and removed the space before the FS.

I will post the updated script now.

1 of 1 found this review helpful.
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