Weekly Native Backups Weekly Native Backups Native backups of each system are performed on a four week cycle. Tapes for weeks A, B and C are kept in the fire safe once complete and are re-used when the particular week comes around again. Week D tapes are taken out of the dump cycle and are sent offsite to DataVault plc. D tape for that machine.
Tapes remain offsite for one year.
The following diagram shows on which day of the week each machine is backed up under this schedule. Note that in this schedule Fsa and Ncs are backed up only once every two weeks. The topology of the native backup schedule is summarised by the following diagram.