Control Data Corporation CYBER 170 Series Operator's Manual page 9

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PREFACE
This manual contains information necessary to establish
and control operation of a CDC
®
Network Operating
System (NOS) Version 1.4 and is intended for use by the
central site (system) operator. NOS was developed by
Control Data Corporation to provide network capabilities
for time-sharing and transaction processing, in addition to
local and remote batch processing on CDC CYBER 170
Series; CDC CYBER 70 Series Models 71, 72, 73, and 74;
computer systems; and 6000 Series Computer Systems.
AUDIENCE AND ORGANIZATION
You are assumed to be familiar with the CYBER 170,
CYBER 70, or 6000 Series computer systems and with
operating system concepts in general.
If you have limited or no previous NOS experience, you are
encouraged to read the following sections of this manual
first.
Section 1
Section 2
Section 3
Section 4
Appendix B
Appendix D
Introduc ti on
Deadstart: This section describes
the process by which NOS is made
operational and ready to process
user jobs.
Operation Under DSD Control: This
section provides information
concerning console operation and
the DSD commands that form the
primary operator interface to NOS.
Cautions are included with the
description of commands that should
be used with extreme care or at the
direction of the si te analyst.
DSD Displays: This section contains
a description and illustration of the
DSD displays that may be brought to
the console screens to monitor
system operation.
Operator Messages: This appendix
contains a sorted listing of the
status and error messages that are
issued by NOS.
Peripheral Equipment Operation:
This appendix contains information
concerning the manual operation of
each peripheral device associated
with NOS.
Since the job requirements of the system operator may
vary from one installation to another, this manual should be
used in conjunction with established policies and procedures
provided by the installation.
60435600 L
Although all information contained in this manual is
considered relevant and necessary for you, a substantial
amount of the information requires that you are
experienced and thoroughly familiar with the subject and
its application with respect to system operation. For
example, before you can use the commands described in
section 5, Operation Under DIS Control, an installation may
require that you have an overall understanding of NOS
operation. Another installation may specify which DIS
commands you can use, if any.
CONVENTIONS
Extended memory (EM) for the CYBER 170 Models 171,
172, 173, 174, 175, 720, 730, 750, and 760 is extended core
storage (ECS). EM for the CYBER 170 Model 176 is large
central memory (LCM) or large central memory extended
(LCME). ECS and LCM/LCME are functionally equivalent,
except as follows:
• LCM/LCME cannot link mainframes and does not
have a distributive data path (DDP) capability.
• LCM/LCME transfer errors initiate an error exit,
not a half exit. Refer to the COMPASS
Reference Manual for complete information.
Model 176 supports direct LCM/LCME transfer COMPASS
instructions (octal codes 014 and 015). Refer to the
COMPASS Reference Manual for complete information.
In this manual, the acronym ECS refers to all forms of EM
on the CYBER 170 Series. However, in the context of a
multimainframe environment or DDP access, model 176 is
excluded.
RELATED PUBLICATIONS
The NOS Manual Abstracts is a pocket-sized manual
containing brief descriptions of the contents and intended
audience of all NOS and NOS product manuals. The
abstracts can be useful in determining which manuals are
of greatest interest to a particular user.
Control Data also publishes a Software Release History
Report of all software manuals and revision packets it has
issued. This history lists the revision level of a particular
manual that corresponds to the level of software installed
at the site.
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