Electrical computers and digital data processing systems: input/ – Input/output data processing – Input/output command process
Reexamination Certificate
2005-08-23
2005-08-23
Gaffin, Jeffrey (Department: 2182)
Electrical computers and digital data processing systems: input/
Input/output data processing
Input/output command process
C710S011000, C710S032000, C711S114000
Reexamination Certificate
active
06934769
ABSTRACT:
Methods and associated structure operable within a SCSI-based storage subsystem to adapt the storage controller for use with non-SCSI disk drives. A firmware layer of the present invention intercepts SCSI read/write requests and pass through command blocks (CDBs) generated by the storage management core of the controller and translates the requests and command structures into corresponding command structures for transmission to a non-SCSI disk drive. In like manner, the firmware layer of the present invention receives status information from non-SCSI disk drives and translates the status information into corresponding SCSI compatible status information. In one exemplary preferred embodiment, a storage subsystem designed for interaction with SCSI disk drives may be adapted in accordance with the present invention to utilize lower-cost, commodity disk drives such as IDE compatible disk drives.
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Chen Alan S
Duft Bornsen & Fishman LLP
Gaffin Jeffrey
LSI Logic Corporation
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