z/VM
z/VM is the current version in IBM's VM family of virtual machine operating systems. z/VM was first released in October 2000[2] and remains in active use and development as of 2022. It is directly based on technology and concepts dating back to the 1960s, with IBM's CP/CMS on the IBM System/360-67 (see article History of CP/CMS for historical details). z/VM runs on IBM's IBM Z family of computers. It can be used to support large numbers (thousands) of Linux virtual machines. (See Linux on IBM Z.)
 | |
| Developer | IBM |
|---|---|
| OS family | VM family |
| Working state | Current |
| Source model | Closed source |
| Latest release | 7.3 / 16 September 2022[1] |
| License | Proprietary |
| Official website | www |
| History of IBM mainframe operating systems |
|---|
On 16 September 2022, IBM released z/VM Version 7.3 which requires z/Architecture, implemented in IBM's EC12, BC12 and later models.[3]
References
| → derivation >> strong influence > some influence/precedence | ||
| CTSS | ||
| > IBM M44/44X | ||
| >> CP-40/CMS → CP[-67]/CMS | → VM/370 → VM/SE versions → VM/SP versions → VM/XA versions → VM/ESA → z/VM | |
| → VP/CSS | ||
| > TSS/360 | ||
| > TSO for MVT → for OS/VS2 → for MVS → ... → for z/OS | ||
| >> MULTICS and most other time-sharing platforms | ||
Citations
- "Introducing IBM z/VM 7.3". 18 March 2023.
- "IBM: VM 50th Anniversary". 2 August 2022.
- "Announcement". 13 September 2022.
Primary CP/CMS sources
- R. J. Creasy, "The origin of the VM/370 time-sharing system", IBM Journal of Research & Development, Vol. 25, No. 5 (September 1981), pp. 483–90, PDF
― perspective on CP/CMS and VM history by the CP-40 project lead, also a CTSS author - E.W. Pugh, L.R. Johnson, and John H. Palmer, IBM's 360 and early 370 systems, MIT Press, Cambridge MA and London, ISBN 0-262-16123-0
― extensive (819 pp.) treatment of IBM's offerings during this period; the limited coverage of CP/CMS in such a definitive work is telling - Melinda Varian, VM and the VM community, past present, and future, SHARE 89 Sessions 9059–61, 1997;
― an outstanding source for CP/CMS and VM history
Additional CP/CMS sources
- R. J. Adair, R. U. Bayles, L. W. Comeau and R. J. Creasy, A Virtual Machine System for the 360/40, IBM Corporation, Cambridge Scientific Center Report No. 320‐2007 (May 1966)
― a seminal paper describing implementation of the virtual machine concept, with descriptions of the customized CSC S/360-40 and the CP-40 design - International Business Machines Corporation, CP-67/CMS, Program 360D-05.2.005, IBM Program Information Department (June 1969)
― IBM's reference manual - R. A. Meyer and L. H. Seawright, "A virtual machine time-sharing system," IBM Systems Journal, Vol. 9, No. 3, pp. 199–218 (September 1970)
― describes the CP-67/CMS system, outlining features and applications - R. P. Parmelee, T. I. Peterson, C. C. Tillman, and D. J. Hatfield, "Virtual storage and virtual machine concepts," IBM Systems Journal, Vol. 11, No. 2 (June 1972)
Background CP/CMS sources
- F. J. Corbató, et al., The Compatible Time-Sharing System, A Programmer’s Guide, M.I.T. Press, 1963
- F. J. Corbató, M. Merwin-Daggett, and R. C. Daley, "An Experimental Time-sharing System," Proc. Spring Joint Computer Conference (AFIPS) 21, pp. 335–44 (1962) — description of CTSS
- F. J. Corbató and V. A. Vyssotsky, "Introduction and Overview of the MULTICS System", Proc. Fall Joint Computer Conference (AFIPS) 27, pp. 185–96 (1965)
- P. J. Denning, "Virtual Memory", Computing Surveys Vol. 2, pp. 153–89 (1970)
- J. B. Dennis, "Segmentation and the Design of Multi-Programmed Computer Systems," JACM Vol. 12, pp. 589–602 (1965)
― virtual memory requirements for Project MAC, destined for GE 645 - C. A. R. Hoare and R. H. Perrott, Eds., Operating Systems Techniques, Academic Press, Inc., New York (1972)
- T. Kilburn, D. B. G. Edwards, M. J. Lanigan, and F. H. Sumner, "One-Level Storage System", IRE Trans. Electron. Computers EC-11, pp. 223–35 (1962)
― Manchester/Ferranti Atlas - R. A. Nelson, "Mapping Devices and the M44 Data Processing System," Research Report RC 1303, IBM Thomas J. Watson Research Center (1964)
― about the IBM M44/44X - R. P. Parmelee, T. I. Peterson, C. C. Tillman, and D. J. Hatfield, "Virtual Storage and Virtual Machine Concepts", IBM Systems Journal, Vol. 11, pp. 99–130 (1972)
Additional on-line CP/CMS resources
- febcm.club.fr — Information Technology Timeline, 1964–74
- www.multicians.org — Tom Van Vleck's short essay The IBM 360/67 and CP/CMS
- www.cap-lore.com — Norman Hardy's Short history of IBM's virtual machines
- www.cap-lore.com — Norman Hardy's short description of the "Blaauw Box"
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