Method and Hardware for the Comprehensive Functional Testing of Interface Controller and Support Circuitry
Original Publication Date: 1988-Jan-01
Included in the Prior Art Database: 2005-Feb-14
This article describes a method and hardware which enables the complete functional testing of a host adapter/controller for Enhanced Small Device Interface (ESDI) fixed disk drives. The ESDI disk drive controller portion of a multiple interface storage controller is used to illustrate the test methodology, but the techniques described may be employed on virtually any serial protocol device controller. There is no requirement for special test equipment or customer intervention for problem determination. (Image Omitted) Isolating the source of a malfunction in a data storage subsystem presents a formidable challenge since the host adapter, the storage peripherals, and the interface protocol linking the two can be highly complex.