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Auto Recognition of Operational System and Powering to Its Last State

IP.com Disclosure Number: IPCOM000042304D
Original Publication Date: 1984-May-01
Included in the Prior Art Database: 2005-Feb-03

Publishing Venue

IBM

Related People

Authors:
Sutton, AJ [+details]

Abstract

In a data processing system which utilizes a Service Processor that has power controls to each of its multiple power partitions, not all of the power partitions have to be powered to form an operational system. The installed partitions are powered. The Service Processor then uses its stored validity table, for each installed configuration, to record the power state for each element powered. At the completion of the power sequence, the elements are checked against the validity table to see if an operational system exists. For example, a dyadic system must have both power frames containing a System Controller and its External Data Controller with at least one storage array to be operational. With multiple power partitions, other elements may be concurrently repaired.