DRM Functionality
Optimizes disk cache use
- Replacement policy - makes decisions on which files to remove when space is needed
- Admission policy - optimize use of files in disk to be shared by clients based on anticipated use
- Service policy – to optimize disk use, but being fair to clients
Key point
- When file is requested
- If file in disk – return that file
- If not in disk – get it from it source location
- Consistent view with HRM (next)