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Solaris (Intel Platform Edition) - Device Driver Writer's Orientation

 

Page 52 of 66


SCSI Drivers: SCSA (cont)

Sun Common SCSI Architecture (SCSA):
  • Divides SCSI drivers into two major classes:
    • SCSI HBA drivers control the HBA SCSI bus controller
    • SCSI target drivers control the actual device (e.g. disk, tape) that is attached to the SCSI bus
  • Makes target drivers independent of the HBA devices

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