Fabric Layer

Provides the resources that are shared by the Grid: CPU time, storage, sensors.
Fabric allows user to ask about available resources and provides resource management mechanism. For example
- Computational resources: How fast is the hardware? Start, monitor, stop.
- Storage: Can I read/write? how much? how fast? Read, write.
- Network: What is the load? Reserve bandwidth.
- Code repositories: CVS.
- Catalogs: relational databases.
Globus uses whatever is already on the machine, but provides its own software if there is none.