Appendix B. Case study: IBM Global Storage Architecture 315
Solution
The first task was to identify the requirements for the new file systems offering.
Through a series of meetings with key internal customers, the team identified
these key requirements:
Longevity
Ability to handle many large and small files
Caching
Excellent reliability, availability, and serviceability
“Usable” ACLs
Large numbers of groups
Location transparency
Quotas, allocation method, and control of growth
Common authentication
Billing by usage
Reduced cost of administration
Scalability
Consistency and a common toolset
Ability to archive data to safe site
24x7 availability
Perform better than the existing file systems
Backups performed daily
Ability of ...