IBM Parallel Sysplex: Difference between revisions

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Revision as of 08:44, 5 December 2021

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==Parallel Sysplex==

[[File:GDPS.svg|thumb|300px|Schematic representation of a Parallel Sysplex]]

IBM introduced<ref>{{cite web

The Parallel Sysplex was introduced with the addition of the [[Coupling Facility]] (CF) with coupling links for high speed communication, with MVS/ESA V5.1 operating system support, together with the mainframe models in April 1994.<ref>{{cite book

| title = S/390 Parallel Sysplex Overview

| id = 194-080

| date = April 6, 1994

| url = https://www.ibm.com/common/ssi/ShowDoc.wss?docURL=/common/ssi/rep_ca/0/897/ENUS194-080/index.html

| work = Announcement Letters

| publisher = IBM

}}

</ref> the Parallel Sysplex with the addition of the 9674<ref>{{cite web

| title = IBM S/390 Coupling Facility 9674 Model C01

| id = 194-082

| date = April 6, 1994

| url = https://www.ibm.com/common/ssi/ShowDoc.wss?docURL=/common/ssi/rep_ca/2/897/ENUS194-082/index.html

| work = Announcement Letters

| publisher = IBM

}}

</ref> [[Coupling Facility]] (CF), new S/390 models,<ref>{{cite web

| title = S/390 Parallel Sysplex Offering

| id = 194-081

| date = April 6, 1994

| url = https://www.ibm.com/common/ssi/ShowDoc.wss?docURL=/common/ssi/rep_ca/1/897/ENUS194-081/index.html

| work = Announcement Letters

| publisher = IBM

}}

</ref><ref>{{cite web

| title = IBM ES/9000 Water-Cooled Processor Enhancements: New Ten-Way Processor, Parallel Sysplex Capability, and Additional Functions

| id = 194-084

| date = April 6, 1994

| url = https://www.ibm.com/common/ssi/ShowDoc.wss?docURL=/common/ssi/rep_ca/4/897/ENUS194-084/index.html

| work = Announcement Letters

| publisher = IBM

}}

</ref><ref>{{cite web

| title = IBM Enterprise System/9000 Air-Cooled Processors Enhanced with Additional Functions and Parallel Sysplex Capability

| id = 194-084

| date = April 6, 1994

| url = https://www.ibm.com/common/ssi/ShowDoc.wss?docURL=/common/ssi/rep_ca/5/897/ENUS194-085/index.html

| work = Announcement Letters

| publisher = IBM

}}

</ref> upgrades to exiting models, coupling links for high speed communication and MVS/ESA SP V5.1<ref>{{cite web

| title = IBM MVS/ESA SP Version 5 Release 1 and OpenEdition Enhancements

| id = 294-152

| date = April 6, 1994

| url = https://www.ibm.com/common/ssi/ShowDoc.wss?docURL=/common/ssi/rep_ca/2/897/ENUS294-152/index.html

| work = Announcement Letters

| publisher = IBM

}}

</ref> operating system support, in April 1994.<ref>{{cite book

| title = System/390 Parallel Sysplex Performance

| id = SG24-4356-03

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Major components of a Parallel Sysplex include:

* [[Coupling Facility]] (CF or ICF) hardware, allowing multiple processors to share, cache, update, and balance data access;

* Sysplex Timers or(more recently, Server Time Protocol) to synchronize the clocks of all member systems;

* High speed, high quality, redundant cabling;

* Software ([[operating system]] services and, usually, [[middleware]] such as [[IBM DB2|DB2]]).