Backup and recovery procedures should be tested. Multiple levels of backup and storage should be used for key data and files. Backup strategies should provide for the loss of multiple cycles. Files and programs should be properly labeled and indexed to facilitate recovery. Users of personal computers are responsible for the backup and recovery of their system files, data, and applications.
Some data require very long term storage, possibly for many decades.
Data will be archived in a format which is independent of any specific application program, since such data formats may be obsolete or the software unavailable when access to these data is required. The DSO will propose a plan for archival renewal and testing, including the migration of archival data to modern storage media every 3-5 years employing a conservative strategy based on the expected lifetime of the media. Archival data is to be stored in multiple copies on multiple types of media. All archival media will be tested at least annually. A frequent testing program of prevention methods as they apply to fire, utility services and other environment hazards must exist.