IBM z/VM

IBM z/VM is an interactive, multiple-access operating system.

The hypervisor can run hundreds to thousands of Linux servers on a single mainframe, together with classic operating systems, such as z/OS and z/VSE.

Components

Control Program (CP)

hypervisor and real-machine resource manager

Conversational Monitor System (CMS)

application and interactive user environment and file systems

Dump Viewing Facility

analyzes and manages system software problems

APPC/VM VTAM Support (AVS)

connectivity in an IBM SNA network

Group Control System (GCS)

virtual machine supervisor that provides multitasking services and supports a native SNA network

Hardware Configuration Definition (HCD) and Hardware Configuration Manager (HCM) for z/VM

I/O configuration management environment

Language Environment for z/VM

runtime environment for application programs written in C/C++, COBOL, or PL/I

REXX/VM

REXX programming language interpreter

TCP/IP for z/VM

support for the TCP/IP networking environment

Transparent Services Access Facility (TSAF)

communication services

Virtual Machine Serviceability Enhancements Staged/Extended (VMSES/E)

tools suite for installing and servicing

Optional Facilities and Features

• Data Facility Storage Management Subsystem for VM (DFSMS/VM)
• Directory Maintenance Facility for z/VM (DirMaint)
• Open Systems Adapter/Support Facility
• Performance Toolkit for VM
• RACF Security Server
• Remote Spooling Communications Subsystem Networking (RSCS)

Versions

For versions 1 and 2 see VM/ESA

• 3.1.0 (Feb 2001)
• 4.1.0 (Jul 2001)
• 4.2.0 (Oct 2001)
• 4.3.0 (May 2002)
• 4.4.0 (Aug 2003)
• 5.1.0 (Sep 2004)
• 5.2.0 (Dec 2005)
• 5.3.0 (Jun 2007)
• 5.4.0 (Sep 2008)
• 6.1.0 (Oct 2009)
• 6.2.0 (Dec 2010)
• 6.3.0 (Jul 2013)
• 6.4.0 (Nov 2016)
• 7.1.0 (Sep 2018)

Links

• z/VM Overview