There are three classes of device dependent subroutines for the serial DASD subsystem:
Error Conditions for Serial DASD Subroutines.
Reliability, Availability, and Serviceability (RAS) Daemon for the Serial DASD Subsystem.
SD Error Identifiers for the Error Log in AIX Problem Solving Guide and Reference.
Serial Direct Access Storage Device (DASD) Overview in AIX Version 4.3 Kernel Extensions and Device Support Programming Concepts.
Serial DASD Subsystem Device Driver.