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 machine. SCSA defines the interface between these two components. This chapter discusses target drivers only. See Chapter 18, SCSI Host Bus Adapter Drivers for information on host bus adapter drivers.
Note - The terms “host bus adapter” and “HBA” are equivalent to “host adapter,” which is defined in SCSI specifications.
This chapter provides information on the following subjects: