Methods and structure for SCSI/IDE translation in a storage subsystem
US6934769B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 29, 2002 |
| Grant date | Aug 23, 2005 |
| Priority date | — |
| Expiry date | Sep 1, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0689
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.