Os consoles, Definition of terms used – Visara Master Console Center Installation User Manual

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Visara Master Console Center

OS Consoles

Following are examples and explanations of how to define OS consoles to
MVS, that is, the 327x console ports for MVS.

Definition of terms used

SYSTEM CONSOLE. A console used by the running operating
system (for example, MVS, VS, DOS) to communicate with the
operator using either an I/O console (327x)) or a “printer console”
(3286-2/3287). The I/O console is used by system operators to issue
START, STOP (P), MODIFY (F) and similar commands. The “printer
console” is used as a hardcopy device (printed material if the device is
real), or as a line-by-line output medium (if the device is virtual or
emulated, for example, the MCC system).

NIP CONSOLE. A console used during the IPL of an operating
system (for example, MVS, VS, DOS) to respond to messages
necessary to get the system into a mode where test/production work
can be accomplished.

A NIP CONSOLE is not necessarily a SYSTEM CONSOLE.

However, it may be the same console if its device address appears in
SYS1.PARMLIB’s “CONSOLxx” member (MVS). Therefore, if you
want to IPL from the MCC (as operators do from their 327x SYSTEM
CONSOLE), add the requisite NIPCON and CONSOLxx entries.
Otherwise, leave out the NIPCON entry.

CONSOLxx member of SYS1.PARMLIB. A parameter library
member used at MVS initialization time to identify “I/O and printer
consoles”, among other options.