The Oracle Solaris DDI/DKI divides the software interface to SCSI devices into two major parts: target drivers and host bus adapter (HBA) drivers. Target refers to a driver for a device on a SCSI bus, such as a disk or a tape drive. Host bus adapter refers to the driver for the SCSI controller on the host. SCSA defines the interface between these two components. This chapter discusses target drivers only. See SCSI Host Bus Adapter Drivers for information about host bus adapter drivers.
This chapter provides information about the following subjects: