Specifications

OpenVMS VAX Operating System, Version 5.5-2 SPD 25.01.37
To support full VMS and full VMS DECwindows, a sys-
tem disk of greater than 115 MB is recommended.
When a smaller disk is used, additional tailoring is re-
quired prior to installing some VMS and VMS DECwin-
dows options. Refer to the VMS Upgrade and Installa-
tion Procedures for information on tailoring.
The VMS DECwindows software installation is an op-
tional step in the VMS installation or upgrade proce-
dure. It has been designed this way to allow users who
do not need the VMS DECwindows software to con-
serve disk space and to allow systems with less than
minimum configuration requirements to continue to run
VMS. Please refer to the VMS Installation and Upgrade
Manual for details concerning the partial installation of
the VMS DECwindows software.
Memory Requirements
The following tables describe the minimum amount of
memory required for a system user to install, boot, and
login to a VMS system. To ensure satisfactory per-
formance of applications, additional memory will be re-
quired.
The minimum amount of memory supported for a stand-
alone VMS system is 2 MB. This first table contains the
minimum amount of additional memory required for the
following components to be installed on a VMS system.
Component Nece
ssary Memory
DECnet .5
MB
VAXcluster 1.5 MB
DECwindows with
remote execution of
applications
1.5 MB
DECwindows with
local execution of
applications
2.0 MB
Two example configurations based on the previous table
are:
System Minimum
Supported Memory
DECwindows with
applications
executing
remotely, and DECnet
4.0 MB
DECwindows with
applications executing
locally, VAXcluster and
DECnet
6.0 MB
Note: These are the minimum memory requirements.
More memory will be required for satisfactory perfor-
mance of the operating system and DECwindows appli-
cations. The performance and memory usage of VMS
DECwindows systems is particularly sensitive to system
configuration and window and application usage. Re-
mote execution of an application requires an additional
system that runs the application while the display of the
application occurs on the local workstation.
Please refer to specific layered product Software Prod-
uct Descriptions for their memory requirements.
Please refer to the VMS documentation for more infor-
mation on performance.
GROWTH CONSIDERATIONS
The minimum hardware/software requirements for any
future version of this product may be different from the
requirements for the current version.
DISTRIBUTION MEDIA
Compact Disc
9-track 1600 BPI Magnetic tape, TK50 Streaming Tape
The VMS Operating System is also available as part
of the VMS Consolidated Software Distribution on
CDROM.
The VMS Documentation is also available as part of the
VMS Online Documentation Library on CDROM.
DOCUMENTATION
Extensive documentation is available for VMS. The doc-
umentation is organized into functional subkits, based
on usage. For example, all system management man-
uals are in one subkit. An easy-to-use desk-top set of
manuals is also available for users who do not require
extensive documentation.
Documentation for VMS DECwindows is available in two
different sets. The VMS DECwindows User Kit is for the
end user and the VMS DECwindows Programming Kit
is for the DECwindows software developer.
In addition, the VMS Online Documentation Library com-
pact disc contains the following VMS documentation,
which can be read using the DECwindows Bookreader
application:
• VMS Base Documentation Set
• VMS Extended Documentation Set
• VMS DECwindows User Kit and Programmer Kit
1
• Selected VMS Layered Product Documentation
1
With
the exception of the Adobe PostScript Documentation, which is not available
online
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