- Fault tolerance
- Resilience
- Backup and recovery of metadata and files, and user support for it
- Disaster recovery
- Off-site metadata
- Data redundancy
- File system redundancy
- Documentation for and training of 24-hour Ops staff to improve
availability
- Data integrity
- Building a resilient system architecture (cf. Topic 1)
- Suggestion: Redudancy versus complexity. Striking a balance.