Patent ID: 6829729
Filing Date: 2004-12-07
Classification: G06F

Abstract:
A method for managing an uncorrectable data error (UE), wherein the UE can produce any of the following conditions: a UE-RE condition, an SUE-mask condition, SUE interrupt condition, a SUE-RE condition, and a SUE-CS condition, from an I/O subsystem as the UE passes through a plurality of devices in a central electronic complex (CEC), the method comprises:(a) detecting an I/O UE condition by at least one device in the CEC; (b) providing an SUE-RE (Special Uncorrectable Data Error-Recoverable Error) attention signal by the at least one device to a diagnostic system to indicate the I/O UE condition; and (c) analyzing the SUE-RE attention signal by the diagnostic system to produce a record for later use which can isolate the I/O UE condition to the I/O port.