very plan, policy and documentation; fire 
drills; testing of backups; support contracts for hardware and software for backup 
mechanisms; demonstrated preservation of system metadata such as access controls, location 
of replicas, audit trails, checksum values. 
Discussion 
The repository should be able to demonstrate the adequacy of the processes, hardware, and 
software for its backup systems and the full range of ingest, preservation, and dissemination 
functions required of a repository entrusted with 