Ops Manager VM - No Space left on the Device

Products

• Operations Manager

Issue/Introduction

Symptoms:

Ops Manager VM disk becomes full and an error message such as "no space left on device" can be seen in Ops Manager log files.

 

Environment

Cause

A possible cause of this issue is that the /tmp directory on the Ops Manager VM has become full. An error message such as "no space left on device" can be seen in Ops Manager log files.

One reason why the /tmp may fill up, is frequent exporting of the Ops Manager installation files (backups etc).

In Ops Manager 1.6 exporting the installation settings will leave files in /tmp/ops_manager directory per export. This will fill up the /tmp directory over time.

In Ops Manager 1.7, although an export will leave files in /tmp/ops_manager, there is a daily job to clear down these files.

 

Resolution

Manually clear down the /tmp directory or the Ops Manager VM can be restarted to clear down the /tmp directory.

In the Ops Manager Version 1.6, it is possible to run a cron job that will delete files in /tmp generated by the export installation process. For example:

sudo find /tmp -user tempest-web -type f ! -name "*.log" -exec rm {} \;

This will go through `/tmp` and find all of the files that are owned by the tempest-web user that are not log files and delete them.

If the /tmp directory is frequently filling up then further investigation is needed to see what process is filling up the disk.