Browse Prior Art Database

Storage Transfers Between Hardware Subsystems

IP.com Disclosure Number: IPCOM000046478D
Original Publication Date: 1983-Jul-01
Included in the Prior Art Database: 2005-Feb-07

Publishing Venue

IBM

Related People

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

Abstract

Multiprocessor (MP) systems may be configured so that they operate as two electronically separated uniprocessors (UPs). In present MP implementations, splitting an operational MP configuration into two separate UPs demands that the installations's operator execute a complex procedure requring knowledge of the virtual page backing conventions of the operating system (OS/VS2--MVS). This process can be improved by dividing the system's real main storage into storage transfer intervals (STIs), i.e., contiguous blocks of real main storage that may be allocated for use by either UP in a separated configuration. These STIs are numbered 0, 1, 2, ... For example, a system with 16 megabytes of real main storage may have four 4-megabyte STIs numbered 0, 1, 2, and 3.