VM/ESA® Fact Sheet
Benefits
VM/ESA provides the following benefits for its users:
- Enables e-business with enhancements to TCP/IP
- Includes rich application tools, such as REXX,CMS Pipelines, Java ™ , and NetRexx empowering people to meet their own computing needs
- Supports Message Queue Interface (MQI) client to enable applications on different systems and architecture to work together
- Enables consolidation of multiple system images to one providing easier systems management and lower personnel costs
- Is one of the most scalable operating systems in the industry, from single-user systems to systems supporting thousands of c oncurrent users
- Enables support for Parallel Sysplex® system environment for MVS™ and OS/390® on a single VM image as a guest of VM
- Provides the platform for integrating the enterprise through open, network computing
- Delivers portability with a single programming interface for all VM applications
- Allows large applications to use VM Data Spaces and 31-bit addressing
- Improves performance by reducing I/O activity via data-in-memory techniques (VM Data Spaces, minidisk caching, Virtual Disks in Storage)
- Improves enterprise management via security support and advanced cooperative processing
For the most current information regarding VM/ESA, visit the official IBM VM Web site at http://www.vm.ibm.com.
Release Summary
- VM/ESA Version 1 Release 1.0 - 370 feature (available September
28, 1990) provides
—Functional equivalence to VM/SP R6, with additional enhancements to support 64 MB of storage and up to 32 channels
- VM/ESA Version 1 Release 1.5 - 370 feature (available December 17, 1993) adds
—VMSES/E support
—CMS Pipelines
—Softcopy documentation - Common to the VM/ESA 370 Feature and other Releases are:
—Bimodal CMS API's (except V2)
—Coordinated Resource Recovery (CRR)
—APPC/VM VTAM® Support (AVS)
—Transparent Services Access Facility (TSAF)
—CMS Shared File System (SFS) - VM/ESA Version 1 Release 1.1 (available December 27, 1991) adds
—Maximum virtual machine size of 2GB
—Bi-modal GCS, for 24-bit and 31-bit VTAM applications
—31-bit CMS for XEDIT and REXX applications
—DFSMS™
—VM Data Spaces
—CMS Pipelines integrated into CMS - VM/ESA Version 1 Release 2 (available December 18, 1992) adds
—Simplified and dynamic system configuration
—Fixed Block Architecture (FBA) support
—CMS Application Multitasking
—Common programming interfaces for SFS and CMS minidisks
—Department of Defense B1 security support - VM/ESA Version 1 Release 2.1 (available July 9, 1993) adds
—Virtual Disks in Storage
—Enhancements to CMS Pipelines
—Improvements to VMSES/E
—REXX Level 2 Stream I/O support for application portability - VM/ESA Version 1 Release 2.2 (available June 10, 1994) adds
—Enhanced minidisk cache for CMS users and guest systems
—SPXTAPE for fast spool file management
—Guest support for processor exploitation
—Scheduler enhancements
—Enhancements to distributed VM support - VM/ESA Version 2 Release 1 (available October 27, 1995) adds
—Support for DCE and POSIX
—VM Graphical User Interface and GUI API
—Dynamic CP Configurability
—CP Exit Facility
—CMS Nucleus Restructure
—General API for Data Compression - VM/ESA Version 2 Release 2 (available December 20, 1996) adds
—Support for the Year 2000
—VM GUI enhancements
—REXX access to TCP/IP socket programming interface - VM/ESA Version 2 Release 3 (available March 24, 1998) adds
—Integrated TCP/IP product suite as a price optional feature (FL310)
—Java Development Kit™ and NetRexx
—Message Queue Interface (MQI) client
—Additional POSIX APIs
—Testing of a Parallel Sysplex system environment
—Integration of CMS Pipelines PRPQ - VM/ESA Version 2 Release 4 (available July 23, 1999) adds
—Support for the S/390® G5/G6 Server and the Integrated Server
—Enhanced TCP/IP FL320 feature including NFS version 3
—Dynamic CP exits
—EURO currency support
—Pre-installed Tivoli ADSM for VM, Version 3.7
Hardware Required
VM/ESA requires the following hardware for support of Release 1.1 or subsequent Releases:
- ES/9000® models 120-170, and 200 in ESA mode
- ES/9000 all other models
- S/390 9672R, G3, G4, G5 and G6 Servers, Multiprise® 2000 or 3000 Integrated Server
- ES/3090™ -9000Tmodel and ES/3090 E, S, or J
- ES/4381™ -9xE
- RS/6000® with S/390 Server-on-Board
- PC Server S/390
Note: VM/ESA Version 2 does not support CMS running in 370 mode. Virtual machines and the G4 and G5 Servers do not support 370-mode execution.
VM/ESA requires the following hardware for support of the 370 feature (processor in 370 mode):
- ES/9000 models 120 - 170 in S/370™ mode
- LPAR - ES/3090, ES/3090-9000T, ES/9000, S/390 9672R
- ES/9370™ all models
- 43XX, 3081-D16, 303X, 158, 168
- S/390 G3 Server and Multiprise 2000 or 3000
Software Required
VM/ESA (5654-030) requires the following minimum software levels (see Announcement Letter 299-129 for further information):
- VM/EREP (5654-260)
- Device Support Facilities (5747-DS1 or 5684-042)
Although High Level Assembler (5696-234) is not a hard prerequisite for VM/ESA Version 2, it is still needed for several functions . See the announcement letter referenced above for further details.
S/390 Exclusives
The following functions are available on ES/3090, ES/9000, and S/390 9672R, S/390 G3, G4, G5, G6 & Multiprise 2000 processors:
- ESCON® architecture
- Enhanced SIE function and performance
- Processor Availability Facility
- VM Data Spaces
- Enhanced Move Page
- PR/SM™ function standard for Multiple Preferred Guests
- Enhanced ESCON speed and distance
- Up to 24 GB memory
- Asynchronous Data Mover Facility for Preferred Guests
- Guest support for Subspace Group Facility
- FIbre CONnection (FICON™ ) architecture (S/390 G5/G6 Servers)
- OSA Express - Gigabyte Ethernet (S/390 G5/G6 Servers)
VM/ESA Feature Comparison
| VM/ESA functions | 370 Feature | ESA/390 |
|---|---|---|
| Bimodal CMS | • | _ |
| Year 2000 support*** | _ | • |
| REXX Sockets*** | _ | • |
| 31-bit CMS | _ | • |
| CMS Pipelines | • | • |
| CMS Multitasking | _ | • |
| VM GUI** | _ | • |
| POSIX and DCE ** | _ | • |
| Coordinated Resource Recovery | • | • |
| APPC | • | • |
| Shared File System | • | • |
| SFS minidisk caching | _ | • |
| VM Data Spaces support | _ | • |
| Common SFS and minidisk interface | _ | • |
| POSIX Byte File System* | _ | • |
| DFSMS/VM® | 0 | 0 |
| Fast data mover | • | • |
| Space management by policy | _ | • |
Base for DoD security support |
_ | • |
| DB2® for VSE & VM | • | • |
| VM Data Spaces | _ | • |
| Enhanced Move Page | _ | • |
| VTAM constraint relief | _ | • |
| Operational enhancements | 0 | 0 |
| Simplified system configuration(logo, TOD changes) | • | • |
| Alternate nucleus | • | • |
| Fast warm start | _ | • |
| Fast spool backup (SPXTAPE) | _ | • |
| Soft-copy documentation | _ | • |
| Enhanced dynamic system configuration* | _ | • |
| Serviceability enhancements | • | • |
| VMSES/E | • | • |
| S/390 Service Update Facility**** | _ | • |
| System Delivery Offering | • | • |
| ESCON architecture | _ | • |
| FICON architecture | _ | • |
| Additional device support: | 0 | 0 |
| FBA DASD, 9348 Tape | • | • |
| 9340 DASD Subsystem | • | • |
| 3390 DASD | _ | • |
| 3990 DASD Fast Write, dual copy | _ | • |
| 3495 Tape Library Dataserver | _ | • |
| 3995 Optical Library Dataserver | _ | • |
| 3590 Tape Drive | _ | • |
| 3494 Tape Library Subsystem | _ | • |
| 3990 Model 6 MPLF Support | _ | • |
| Internal Disk | _ | • |
| RAMAC® DASD Subsystem | _ | • |
| RAMAC Array Subsystem | _ | • |
| Minidisk Caching | _ | • |
| OSA-2 | _ | • |
| System Management Products | 0 | 0 |
| HMF | _ | • |
| PRF | _ | • |
| PAF | _ | • |
| RTM | _ | • |
| DirMaint | • | • |
| Communications | 0 | 0 |
| TCP/IP V2R4 | _ | • |
| RSCS V3R2.2 | _ | • |
| CF/VTAM V4R2 | _ | • |
| Additional Features | 0 | 0 |
| LANRES | _ | • |
| LFS/ESA | _ | • |
| Shell & Utilities** | _ | • |
| CMS Utilities | _ | • |
| DCE Base Services** | _ | • |
| TCP/IP Feature for VM/ESA**** | _ | • |
VM Operating System Comparison
| VM functions | VM/SP | VM/ESA 370 Feature | VM/SP HPO | VM/XA SP | VM/ESA |
|---|---|---|---|---|---|
| Function | 0 | 0 | 0 | 0 | 0 |
| Year 2000 support*** | _ | _ | _ | _ | • |
| REXX Sockets*** | _ | _ | _ | _ | • |
| Bimodal CMS | R6 | • | R6 | • | CMS11 |
| 0 | 0 | 0 | 0 | 0 | CMS12 |
| 0 | 0 | 0 | 0 | 0 | CMS13 |
| 0 | 0 | 0 | 0 | 0 | CMS14 |
| 0 | 0 | 0 | 0 | 0 | CMS15 |
| APPC/VM | R5 | • | R5 | _ | • |
| Shared File System | R6 | • | R6 | _ | • |
| Cross System Extensions | _ | _ | • | • | • |
| Coordinated Resource Recovery | _ | • | _ | _ | • |
| Callable Services Library | R6 | • | R6 | _ | • |
| CMS application multitasking | _ | _ | _ | _ | • |
| Reusable Server Kernel | _ | _ | _ | _ | • |
| Virtual disk in storage | _ | _ | _ | _ | • |
| Enhanced minidisk caching | _ | _ | _ | _ | • |
| 370 accommodation† | _ | _ | _ | _ | • |
| REXX L2 support | _ | _ | _ | _ | • |
| CP Exit Facility** | _ | _ | _ | _ | • |
| Enhanced Dynamic System Configuration** | 0 | 0 | 0 | 0 | 0 |
| VMSES/E | _ | • | _ | _ | • |
| CMS Pipelines | _ | • | _ | _ | • |
| VM GUI** | _ | _ | _ | _ | • |
| POSIX and DCE** | _ | _ | _ | _ | • |
| Java and NetRexx**** | _ | _ | _ | _ | • |
| Parallel Sysplex support**** | _ | _ | _ | _ | • |
| Message Queue | 0 | 0 | 0 | 0 | 0 |
| Interface client**** | _ | _ | _ | _ | • |
| Central storage | 0 | 0 | 0 | 0 | 0 |
| 16 MB | • | • | • | • | • |
| 64 MB | _ | • | • | • | • |
| 1 GB | _ | _ | _ | • | • |
| 2 GB | _ | _ | _ | _ | • |
| Expanded storage | 0 | 0 | 0 | 0 | 0 |
| Paging | _ | _ | • | • | • |
| Guest | _ | _ | _ | • | • |
| VM Data Spaces | _ | _ | _ | _ | • |
| Virtual Machine size | 0 | 0 | 0 | 0 | 0 |
| 16 MB | • | • | • | • | • |
| 999 MB | _ | _ | _ | • | • |
| 2 GB | _ | _ | _ | _ | • |
| I/O | 0 | 0 | 0 | 0 | 0 |
| S/370 mode | • | • | • | _ | _ |
| Dynamic Channel Subsystem | _ | _ | _ | • | • |
| ESCON I/O | _ | _ | _ | _ | • |
| FICON I/O | _ | _ | _ | _ | • |
| Channels | 0 | 0 | 0 | 0 | 0 |
| 16 | • | • | • | • | • |
| 32 | _ | • | • | • | • |
| 48 | _ | _ | • | • | • |
| 256 | _ | _ | _ | • | • |
| Guest operating systems | 0 | 0 | 0 | 0 | 0 |
| S/370 | • | • | • | • | • |
| 370-XA mode | _ | _ | _ | • | • |
| ESA/390 mode | _ | _ | _ | • | • |
| Preferred guests | 0 | 0 | 0 | 0 | 0 |
| One | _ | _ | • | • | • |
| One to six | _ | _ | _ | • | • |
| Processor | 0 | 0 | 0 | 0 | 0 |
| Uni, dual and dyadic | • | • | • | • | • |
| N-way | _ | _ | _ | • | • |
| Systems supported | 0 | 0 | 0 | 0 | 0 |
| ES/9370 | • | • | _ | _ | _ |
| ES/4381 | < | • | • | < | < |
| ES/3090 | > | > | > | • | + |
| ES/9221 | • | • | • | • | • |
| ES/9121 | > | > | > | • | • |
| ES/9021 | > | > | > | • | • |
| S/390 R1x, R2x, R3x | _ | > | _ | _ | • |
| G3 Servers | _ | > | _ | _ | • |
| G4 Servers# | _ | _ | _ | _ | • |
| G5 Servers# | _ | _ | _ | _ | • |
| G6 Servers# | _ | _ | _ | _ | • |
| S/390 Multiprise 2000 | _ | > | _ | _ | • |
| S/390 Multiprise 3000# | _ | _ | _ | _ | • |
| S/390 Integrated Server | _ | • | _ | _ | • |
| RS/6000 and S/390 Server-on-Board | _ | • | _ | _ | • |
| PC Server S/390 | _ | • | _ | _ | • |
Legend
* indicates releases currently being marketed
** Only on V2R1 or later
*** Only on V2R2 or later
**** Only on V2R3 or later
† Required to run 370 CMS application on VM/ESA V2
• Supported
> Supported in logical partition only
X Native on some models,logical partitions on others
+Supported VM Data Spaces are not available
< ES/4381 Models 9xE
R5 Available under VM/SP Release 5 (with or without HPO)
R6 Available under VM/SP Release 6 (with or without HPO)
_ Not applicable
# No 370 mode execution
End of Service Information
VM/SP R5, VM/SP HPO, VM/SP R6, VM/XA SP R2.1, VM/ESA V1R1.0 370, VM/ESA V1 R1.1, VM/ESA V1R2.0, VM/ESA V1R2.1are no longer being serviced
® DB2, DFSMS/VM, ES/9000, ESCON, IBM, Multiprise, OS/390, Parallel Sysplex, RAMAC, RS/6000, S/390, VM/ESA and VTAM are registered trademarks of International Business Machines Corporation.
TM DFSMS, ES/3090, ES/4381, ES/9370, FICON, MVS, PR/SM, and S/370 are trademarks of International Business Machines Corporation.
Java and all Java based trademarks are trademarks of Sun Microsystems, Inc.
All other registered trademarks and trademarks are the properties of their respective companies.
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