gtpm3m14 | Multi-Processor Interconnect Facility Reference |
MPIF views the ESCON CTC as a set of 512 physical links. The input/output configuration data set (IOCDS) assigns a symbolic device address to each link. See ES/9000, ES/3090 Input/Output Configuration Program User's Guide and ESCON Channel-to-Channel Reference. Use the ZMPIF DEFINE DEVICE command to define the hardware to MPIF as range of symbolic device address. The number of symbolic device addresses in the range can be from 2 to 128. Within a defined range, MPIF pairs addresses in sequential order. If symbolic device address's 400 to 407 are defined as a range, the address pairs will be (400,401), (402,403), (404,405), (406,407).
IBM Enterprise Systems Connection Architecture, referred to as IBM ESCA, provides high-speed connections between local and remote TPF systems through MPIF. It provides a faster data transfer rate, allows a greater distance between the channel and control unit, and increases the number of processors that can be connected.