Input/output system implementing several access paths for rerout

Details Input/output system implementing several access paths for rerout Input/output system implementing several access paths for rerout

1989-02-21

1992-06-02

Lee, Thomas C.

Boots, shoes, and leggings

364228, 3642281, 3642283, 3642382, 3642383, 3642419, 364260, 364262, 3642622, 364264, 364265, 3642651, 3642655, 364266, 3642664, 3642665, 364267, 3642673, 364268, 3642681, 3642683, 3642686, 3642687, 3642689, 371 82, G06F 1100, G06F 1134

Patent

active

051194880

ABSTRACT:
An interrupt control system having a plurality of access paths includes a control memory for storing control information for controlling all of the access paths. When an error occurs on a path, a control unit controlling the respective access paths refers to and updates the control memory to execute a channel reconnection without using the path on which the error has occurred, and then executes a retry command to carry out an error recovery operation.

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Frush, D. I., Graceful Degradation in a Multiple Data Path Environment, IBM TDB, vol. 16, No. 3, Aug. 1973.

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