A Hierachical Strage Management System Over View

Sony PetaServe (Based on Computer Associates OSM software)
Basic Function:
- Migrate(D->T) Scheduled, Event driven and by command
- Reload (T->D) user transparently or command
- Prestage(D->T) virtualily decrease migrate time into 0
Stab(512B+a) and Bit file(File real body)