NET/MASTER Management Services (MS) Operator's Guide

Executing NonStop NET/MASTER MS Commands in the Background
Issuing NonStop NET/MASTER MS Commands
3–10 106379 Tandem Computers Incorporated
Executing NonStop
NET/MASTER MS
Commands in the
Background
Two types of users operate within the NonStop NET/MASTER MS environment: real
users and virtual users.
Real users are human operators who interact with NonStop NET/MASTER MS
from a terminal, choose options from menu panels, and enter NonStop
NET/MASTER MS commands to instruct the system to perform various tasks.
Virtual users are processes that operate in the background and do not have
terminals associated with them. They provide a processing environment in which
NCL procedures are run and commands are executed without having to interact
with a terminal.
Virtual Users NonStop NET/MASTER MS creates five virtual users when it starts. These virtual
users process NonStop NET/MASTER MS commands on behalf of other users or
procedures, exist as long as NonStop NET/MASTER MS is running (unless explicitly
stopped), and have user IDs associated with them. The five virtual users are as
follows:
BMON (the Background Monitor) processes commands and sends the results to
the terminals of all users who have been defined as monitor-class users (discussed
in Section 1, “Getting Started With NonStop NET/MASTER MS,” and Section 4,
“Operator Control Services (OCS)”) and to the activity log (discussed in Section 6,
“Examining the Activity Log”).
BLOG (the Background Logger) processes commands, and sends the commands
and the results to the activity log.
BSYS (the Background System process) executes the READY and INIT NCL
procedures during system startup. It can also execute user-defined NCL
procedures after the system is running.
EMSP runs the EMSPROC procedure, an NCL procedure that intercepts each
event message and determines whether to discard it or allow it to proceed for
further filtering. (The EMSPROC procedure is discussed in Section 4, “Operator
Control Services (OCS).”)
LOGP runs the LOGPROC procedure, an NCL procedure that intercepts and
processes all messages destined for the activity log. (The LOGPROC procedure is
discussed in Section 6, “Examining the Activity Log.”)