Browse Prior Art Database

Enhancement to System Control Program Nucleus Refreshment

IP.com Disclosure Number: IPCOM000049927D
Original Publication Date: 1982-Aug-01
Included in the Prior Art Database: 2005-Feb-09

Publishing Venue

IBM

Related People

Authors:
Moore, BB Rodell, JT Sutton, AJ Vowell, JD [+details]

Abstract

Many System Control Program (SCP) "nucleus" pages are refreshable (i.e., "read-only"), and a copy of each such page is kept in a nucleus data set on secondary storage. In typical implementations, when a permanent main-storage failure prevents the SCP from referencing a location within a refreshable nucleus page, further SCP operations may proceed only after a system shut-down and a re-IPL (Initial Program Load). An enhancement to this process is described in the example below.