Shared Storage for Multiple Processors
Original Publication Date: 1980-Oct-01
Included in the Prior Art Database: 2005-Feb-13
A shared storage feature is described that enables independent processors each including a central processing unit (CPU) to communicate in a high-speed fashion through a common storage facility. Each of the processors that are interconnected in the system contains a relocation translator as described in the U. S. Patent 4,037,215. An asynchronous interface described in that patent and also in U. S. Patent 4,042,911, is modified to allow multiple translators to be "dotted" and access a common or shared storage resource. See Fig. 1. It is noted that each CPU has its own dedicated storage with which it operates without contention from other CPUs, and each has associated Input/Output (I/O) devices. Each CPU also has addressability to the common storage pool where it must contend with other CPUs for each storage access.