When Enterprise Vault detects that a vault store partition has been backed up, it is free to remove the safety copies of the items it archived previously. Enterprise Vault can detect that partitions have been backed up by inspecting the archive attribute on individual files if your backup software clears the archive attribute after backup. Alternatively, can use a trigger file mechanism.

For more information about the relationship between backup software and the detection of partition backups, see "About Enterprise Vault safety copies" in Installing and Configuring.