Administrators see the following additional monitor entries on cn=userRoot Backend,cn=monitor:

ds-soft-delete-entry-operations-count
Displays the number of soft deletes performed on the backend since server startup.
ds-undelete-operations-count
Displays the number of undeletes performed on the backend since server startup.
ds-backend-soft-deleted-entry-count
Displays the current number of soft-deleted entries in the database.
ds-auto-purged-soft-deleted-entry-count
Displays the current number of soft-deleted entries purged since the backend or server was restarted.