Monitoring Diskspace Usage on Linux

While I would always advocate to monitor OS metrics like disk space usage with an agent (i.e. Enterprise Manager/Zabbix/Prometheus) sometimes, that's not always an option. For a recent edge case I needed to drop in a crontab script and wanted something dynamic (no hard coding) and informative. Here's what I came up with that may be useful for others.

The output will look something like this:

Running low on space "/dev/sda1 (85%)" on server.domain.com as on Tue Jul  3 12:54:39 EDT 2018.  It is mounted at /u01.

To find large directories in the mount use the disk usage command, i.e. - du -ax /u01 | sort -n -r | head -n 10

   **This email was generated from a script run on server.domain.com**

Comments

  1. UnknownMarch 10, 2019 at 12:11 AM

    This comment has been removed by a blog administrator.

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  2. RosinDecember 13, 2024 at 12:28 AM

    Monitoring disk space usage on Linux is crucial for maintaining system performance and avoiding unexpected issues. Just like Raw Accel optimizes speed, keeping track of your disk space ensures your system runs smoothly and efficiently!

    ReplyDelete

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