File System Monitoring in Linux

File System Monitoring

Monitoring the full filesystems is the common monitoring task of all, in Linux environment. Among different Unix the monitoring techniques only the commands and output fields vary. This variation is due to the fact that based on the Unix system the command syntax vary.

This article explains the step by step procedure in building a script to monitor the filesystem usage. Amount of space that has been used or consumed is referred to as the % percentage of space used in each filesystem. Secondly we should deal with the original base code , exceptions capability and set the threshold for a filesystem to a maximum level. As a third part large filesystems are dealt with , which is larger than 2GB. Hence in order to have a unix script megabytes, MB, free space technique can be used. Important trick is to use the exception capability to the MB size. Next step is to combine the % of space used and MB of free space techniques.

Regular filesystems are monitored with % used. For larger filesystems MB of free space. Now the final script step should allow the script that is built for filesystem monitoring to run on HP-UX, AIX, Solaris, Linux, without any modification.

Steps To Write a Linux Script For FileSystem Monitoring

To summarize, we used the following techniques in writing a shell script to monitor a filesystem:

. % Percentage of used space method
. % Percentage of used space with exceptions capability added to it
. Size MB of free space method
. Size MB of free space added with exceptions capability
. Combine % space used and MB free space
. Enable to execute on AIX, HP-UX, Linux, and Solaris

In Linux environment the linux command to know the filesystems in kilobytes, KB blocks is
$ df -k in AIX

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File System Monitoring in Linux