Browse Prior Art Database

Rapid Reactivation of a Backup Processor

IP.com Disclosure Number: IPCOM000035688D
Original Publication Date: 1989-Aug-01
Included in the Prior Art Database: 2005-Jan-28

Publishing Venue

IBM

Related People

Authors:
Griscom, RE Sutton, AJ [+details]

Abstract

In a two-way redundant processor arrangement, the processors are typically configured such that one is active and the other is backup. When the active processor fails, the backup takes over by first reinitializing itself as active. The reinitialization time for the backup to become active constitutes a disruption in the net processing of the pair of processors because no output is produced during that time. This article describes two types of improvements to this design, each of which reduces the time of disruption. (Image Omitted)