Virtual sequential data storage (VSDS) system with router...

Details Virtual sequential data storage (VSDS) system with router... Virtual sequential data storage (VSDS) system with router...

2005-04-12

2005-04-12

Padmanabhan, Mano (Department: 2188)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C398S049000, C709S217000, C709S238000, C709S245000, C711S111000, C711S112000, C711S138000, C713S150000, C713S153000

Reexamination Certificate

active

06880040

ABSTRACT:
A virtual sequential data storage (VSDS) system includes a VSDS controller coupled to physical data storage and a host machine with at least one host application. The controller is configured to carry out commands from the host application referencing VSDS. A router installed at the host intercepts prescribed types of host application commands directed to the controller. For each intercepted read/write command, the router determines a target physical location in physical data storage to carry out the intercepted host read/write command. Also, if the host application command is a read command, the router transfers data requested by the read command from the target physical location to the host application bypassing the controller. If the host application command is a write command, the router transfers write data associated with the write command from the host application to the target physical location bypassing the controller.

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