Controlling File Versions and Aging
The Versions app (files_versions) expires old file versions automatically to ensure that users don’t exceed their storage quotas. This is the default pattern used to delete old versions:
For the first second we keep one version
For the first 10 seconds ownCloud keeps one version every 2 seconds
For the first minute ownCloud keeps one version every 10 seconds
For the first hour ownCloud keeps one version every minute
For the first 24 hours ownCloud keeps one version every hour
For the first 30 days ownCloud keeps one version every day
After the first 30 days ownCloud keeps one version every week
The versions are adjusted along this pattern every time a new version is created.
The Versions app never uses more that 50% of the user’s storage quota. If the stored versions exceed this limit, ownCloud deletes the oldest file versions until it meets the disk space limit again.
You may alter the default pattern in
config.php. The default setting
auto, which sets the default pattern:
'versions_retention_obligation' => 'auto',
Additional options are:
D, auto: Keep versions at least for D days, apply expiration rules to all versions that are older than D days
auto, D: Delete all versions that are older than D days automatically, delete other versions according to expiration rules
D1, D2: Keep versions for at least
D1days and delete when they exceed
disabled: Disable Versions; no files will be deleted.
Enterprise customers have additional tools for managing file retention policies; see Advanced File Tagging With the Workflow App.