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MVS

Multiple Virtual Storage (MVS) is the most commonly used operating system on the System/370, System/390 and IBM Z IBM mainframe computers. IBM developed MVS, along with OS/VS1 and SVS, as a successor to OS/360. It is unrelated to IBM's other mainframe operating system lines, e.g., VSE, VM, TPF.

[EN, English, English]

Evolution of MVS, MVS filesystem & Closely related operating systems

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Available in
English
Developer
IBM
Influenced by
TSS
Initial release
1974; 52 years ago (1974)
License
Proprietary Initially free
Marketing target
IBM mainframe computers

Topics to explore

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Overview

Evolution of MVS

MVS filesystem

Upgrades to MVS

Data Facility Product (DFP)

  • DFSMSdfp Data Facility Storage Management Subsystem (MVS)

Modern MVS

MVS/370

MVS/XA

MVS/ESA

Closely related operating systems

Advanced semantic analysis

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Map overview Semantic statistics

Number of nodes, edges, triples, density and central hubs. Use it to gauge the size and connectivity of the map.

MVS

Nodes153
Edges152
Triples194
Avg. degree1.99
Density0.013072
Components1

How this topic connects Entity context

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MVS

Top relations

related to Upgrades to MVS · 74
MVS → ACF/TCAM, ACF/VTAM, AM3 Sequential Access Method, AM3MVS/370 Data Facility Product, AM7 Data Facility Device, AM7Data Facility Extended Function, AM8 Access Method Services, AYF, BBJTSO Programming Control Facility, CLW, Command Package, Cryptographic Option5748-UT2 Offline, Data Facility Sort, Data Facility/Device Support, DF/DS, DF/DSS, DF/EF, DF/HSMOS/VS2 MVS TSO Command, DF1 Replaces DFP, DFDS
related to Closely related operating systems · 22
MVS → Amdahl, Amdahl Only Specifications, Any, Australia, Even IBM's, Federal Bureau, Fujitsu, Fujitsu's, Hitachi, IBM, IBM IP, IBM's, IBM's IP, IBM's MVS, Investigation, Japan, Japanese, MSP, Reliable, Subsequent
related to MVS filesystem · 20
MVS → By, Data, DEPT01, DSNs, Each, FILE01, Files, Finder, For, GUI, However, Macintosh File System, Names, RACF, SYSTEM01, The, TSO, Unix, VSAM, Windows Explorer
related to MVS/ESA · 12
MVS → AR, February, IBM, MVS Enterprise System Architecture, MVS/ESA, MVS/ESA SP Version, MVS/SP Version, MVS/XA, OS, OS/390, S/370 Enterprise Systems Architecture, S/370-ESA
related to External links · 11
MVS → December, Functional, IBM, IBM Systems Journal, MVS Manuals, OS V1R11, OS V1R8, OS/VS2-2, Part II, Scherr, Wayback Machine
related to overview · 10
MVS → First, MVS/Enterprise Systems Architecture, MVS/ESA, MVS/eXtended Architecture, MVS/SE, MVS/SP, MVS/System Extensions, MVS/System Product, MVS/XA, Version
see also · 8
MVS → MVS/ESA, MVSUtility, OS, OS/360, OS/390, S/370, S/390, TimelineHercules
related to MVS/370 · 5
MVS → Because, MB, MVS/370, MVS/XA, The System/370
related to MVS/XA · 4
MVS → I/O, Multiple Virtual Storage/Extended Architecture, MVS/XA, XA
related to OS/390 · 4
MVS → IBM, In, MVS/ESA, OS/390

Important terminology Word statistics

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Important terminology

system ibm os operating data systems support programs used virtual program address processing storage also mainframe 370 could 360 xa

Entity relationships Subject–Predicate–Object triples

Extracted RDF-like relationships with confidence and source. The table includes structured facts and lower-confidence contextual relations.
SubjectPredicateObjectConfidenceSrc
MVSAvailable inEnglish1.00infobox
MVSDeveloperIBM1.00infobox
MVSInfluenced byTSS1.00infobox
MVSInitial release1974; 52 years ago (1974)1.00infobox
MVSLicenseProprietary Initially free1.00infobox
MVSMarketing targetIBM mainframe computers1.00infobox
MVSOS familyOS/3601.00infobox
MVSPreceded byOS/VS2 (SVS)1.00infobox
MVSSucceeded byMVS/SE, MVS/SP, MVS/XA, MVS/ESA, OS/390, z/OS1.00infobox
MVSSupported platformsSystem/370, System/3901.00infobox
MVSWritten inAssembler (XF), PL/S1.00infobox
MVS/XAinstance ofand IBM continued to use the term MVS in the naming of later major versions0.80text

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