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Configuration

The setting is named "Automatic disk space cleanup" and has these options:

• Delete files older than
  • used to configure the age of files , that should be deleted automatically - not set by default (factory settings)
    
    
• Delete additional files when disk space is below
  • used to configure minimum free disk space before deleting files and let's lets you configure the age of files to keep (not to be deleted) - not set by default (factory settings)
    
    
• Cleanup abandoned host files older than
  • used to configure when to delete files of abondoned abandoned hosts - set by default (factory settings) to 30 days , so that these files get deleted 30 days after the host has been removed from monitoring

Setup → General → Global settings → Automatic disk space cleanup
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Automatic execution

You do not have to configure execution of this manually, ; every Checkmk instance user has a cronjob for the diskspace feature, which gets executed  5 minutes after each hour.

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When started manually or automatically by a cronjob, the diskspace command behaves like this:

1. read in configuration (set in global settings)
2. load plugins from ~/share/diskspace
3. load custom plugins from ~/local/share/diskspace, if existant existent - yes, you can define additional plugins yourselves
4. collect paths and time information of all paths defines defined in loaded plugins
5. delete files according to configured settings
   
   

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