To monitor free disk space on a server hosting a WordPress website i created a new plugin, a sort of clone of the unix command df, called WP-Disk-Free.
This plugin allow you to:
- define in the Settings page minimum free disk space (MB) to use as a warning quota
- receive an email, sent to a configured address in the Settings page, when free disk space goes below the warning level
- receive an email, sent to a configured address in the Settings page, when free disk space goes back above the warning level
I hope this plugin will be useful also to many other bloggers out there, as WordPress Extra File Types and WP Plugins&Themes Auto Update.