IBM Mainframe Operating Systems
IBM Mainframe Operating Systems
IBM
IBM mainframe computers are servers based on the processor instruction set of the System/360 introduced in the mid-1960s, much as today's Intel computers and processors are based on the 8086 used in the original 1981 IBM PC. This category covers the operating systems (OSs) and software products that run on IBM mainframes. Any sites also including mainframe hardware-related information belong in a subcategory of Computers/Hardware/Systems/IBM.
On this page, OSs are arranged in two groups and levels: 1) Top group: issues spanning multiple IBM OSs. 2) Bottom group: specific IBM OSs, individual instances; there is only one OS of this name/type, with its own category.
Top: Computers: Software: Operating Systems: Mainframe: IBM
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Editor's Picks:
- IBM starting point for mainframe OSs. Links to home page of each OS, with brief descriptions: z/OS, z/OS.e, Linux on zSeries, z/VM, TPF and z/VSE.
- News, programming tips and technical information for z/OS and mainframe Linux applications and systems programmers.
- An IBM redbook covering basics, performance, recovery and management, with sample code in an appendix. Viewable on-line or downloadable as an Adobe Acrobat .pdf file.
- Pictures and a description of MTS as it was at the University of Michigan in 1969.
- User group spun off from GUIDE in 1995 and similar to SHARE, with annual conference aimed mainly at VSE/ESA and z/VM systems programmers.
- Xephon's quarterly technical journal covering TCP/IP and SNA on the mainframe. Older issues, including published code, available for free download. Click on TCP Links for Xephon's favorite Top 10 Web links.
- A University of Michigan-centric historic look at MTS, including a time line and anecdotes, as well as some information on the MERIT Network.
- Susan Topol's 1996 history of MTS from the University of Michigan perspective. Focuses on the early years.
- IBM home page for mainframe storage software, including DFSMS, DFSORT and DataCore SANSymphony, with a link to the TotalStorage Software Roadmap.
- Includes many mainframe-related articles. From Audit Serve.
- Publisher of books on COBOL, DB2, CICS, z/OS JCL, TSO, VSAM, IMS, and VSE/ESA. Sample chapters and code can be downloaded.
- A free monthly publication from Xephon providing access to complete Adobe PDF copies of two year old editions of their fee-based technical journals covering CICS, DB2, MQ, z/OS, VSAM, RACF and TCP/SNA. Most articles include code, which can be downloaded
- RACF-L: RACF Discussion List
- User group. Primary focus is z/OS systems programming.
- Links compiled by Johan van Arendonk.
- A 1996 introduction to the use of MTS for students.
- Xephon's quarterly technical journal covering RACF and related security considerations. RACF is IBM's access control software for z/OS and z/VM. Older issues, including published code, available for free download. Click on RACF Links for Xephon's favorite
- Although focused on z/OS storage management, many of the VSAM documents, for example, also apply to VSE/ESA and z/VM. White papers and other articles, much of it vendor-neutral.
- IBM home page for TPF. Despite the name, TPF can be run as a stand-alone operating system on IBM mainframes.
- A selection of terms, with definitions, taken from an appendix found in most IBM RACF manuals.
- Although intended to provide answers to oft-asked mainframe technical questions, the questions are those that frequently come up in day-to-day work.
- Starting point for information on IBM transaction processing software, including CICS, IMS/TM, WebSphere MQ (formerly MQSeries) and TPF.
- IBM home page for Virtual Telecommunications Access Method (VTAM); the z/OS version is part of Communications Server. Includes links to the latest version's announcement letter, documentation and storage estimates.
- Describes options available for connecting CICS to the Internet.
- Categorized discussion forums as well as gateways to mainframe UseNet lists.
- Common technical terms used when discussing IBM's CICS transaction processor and teleprocessing monitor. Hosted by the IBM Pittsburg lab, formerly Transarc.
- Muraleedharan's links and abstracts of articles on systems software topics, including z/OS, DB2, CICS, DFSMS and RACF.
- IBM's official listing of the announced end of support date, if any, for each of their software products.
- Common questions and answers about the IBM-Main discussion list.
- Xephon's monthly technical journal covering CICS. Older issues, including published code, available for free download.
- CICS technical information from a retired IBM expert.
- Terms used by IBM subsidiary Tivoli. Glossary can be used on-line or downloaded in Adobe Acrobat .pdf file format.
- A description of the Michigan Terminal System (MTS) operating system from an on-line mainframe-centric dictionary.
- IBM home page for Database 2 running on z/VM and VSE/ESA. Overview and associated products, with links to features and benefits, system requirements, success stories, news, events, education and support. Formerly named SQL/DS, DB2 is a relational databa
- April 7, 2004, marks the 40th anniversary of the launch of the IBM System/360; programs and batch jobs written for the first S/360 would run on the IBM z890 mainframe announced today.
- IBM home page for Data Interfile Transfer, Testing, and Operations Utility for ESA (DITTO/ESA). Overview of features with links to support, news, library and more information. DITTO runs on VSE/ESA, z/VM and z/OS.
- Xephon's monthly technical journal covering WebSphere MQ, formerly MQSeries. Older issues, including published code, available for free download.
- An independent source of the latest news and other CICS technical information, including PTF status, articles, sample code and freeware.
- Large IBM product family encompassing middleware and other application delivery software that provides Web-based access to an organization's application software. Including WebSphere MQ, the former MQSeries.
- Written in 1996, as MTS was being shut down at the University of Michigan, a look back at how MTS influenced computing over 30 years.
- Information on the CICS activities of the SHARE user group.
- In-depth technical articles on mainframe and non-mainframe systems software, with and without Candle software present. Archives go back to late 1998.
- Technical help submitted by visitors and moderated by a CICS expert.
- IBM message lookup for z/OS, OS/390, z/VM and VSE/ESA. By operating system version number.
- A collection of links to TPF, ALCS, ACP and other mainframe information and resources. From TravelGlobe.biz.
- An IBM monthly publication focused almost entirely on CICS.
- Access to the IBM TPF Product Information Center, on-line manuals for TPF, TPFDF, EOCF/2, TPF Operations Server and IIOP Connect for TPF, and order information for CD-ROM and printed manuals.
- Information, reviews and discussion about IBM's CICS.
- Includes WebSphere and VisualAge, as well as traditional programming language compilers and tools. Plus software management tools such as Software Configuration and Library Manager facility (SCLM).
- A collection of information and links on MTS and MERIT (Michigan Educational and Research Information Triad) Network, including the MTS Help section with its description of MTS commands and related user documentation.
- Mainframe programming information, including a large dictionary and links to downloads and manuals.
- 10 years of technical conference papers and presentation notes by Jacqui Lynch of Circle4 Consulting. Performance, capacity planning and security, including VSAM, z/OS, Linux, TCP/IP and storage management.
- IBM home page for Customer Information Control System (CICS). Includes links to support, download, case studies, library, services, events and education. CICS is a transaction processing teleprocessing monitor that runs on z/OS and VSE/ESA, though there
- IBM home page for Linux on the eserver zSeries (mainframe).
- Available for z/OS, z/VM and VSE/ESA, with some components base elements included with z/OS.
- An on-line tool (registration required) for IBM z/OS, z/VM, z/VSE customers to order tailored product and service packages, review their software licenses and plan for future upgrades.
- A time line of computer-related events from 1971 to 1984, when MTS was the primary operating system at a Canadian university in Edmonton.
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