DAOS restore

Domino backup and restore can restore missing or corrupted DAOS attachment objects (NLOs) if they are backed up by a separate DAOS file-level file backup that is Domino-aware.

DAOS NLO restore isn't needed often because the DAOS deferred deletion interval (Defer object deletion for n days setting) retains NLO files for a specified period after they are no longer in use. However, to be able to recover NLOs that exhibit problems such as corruption or to recover unused NLOs that are deleted according to the deletion interval, use a separate OS-level file backup. In this case, the backup should occur more frequently than the deferred deletion interval to ensure that all NLOs are backed up before being purged. Best practice is to schedule NSF and DAOS backup at similar times, although it's not necessary to schedule at exact same time. Also, use different backup repositories for NSF and DAOS because of the nature of their data: NSF fast changing, DAOS static once written.

If a DAOS file-level backup is configured for NLOs, any missing NLO files are restored. Otherwise, a list of missing NLO files are shown in the Restore results.

A DAOS file-level backup and NSF backup should be scheduled at similar intervals although scheduling at the same time is not necessary. There is no backup integration today and it is a best practice to have different backup repositories for NSF and DAOS because of the nature of the data (NSF fast changing, DAOS static once written). The focus is NSF/translog backup with integration for DAOS restore.