ServerNet Cluster 6780 Operations Guide (G06.28+, H06.05+)

ServerNet Cluster Software
ServerNet Cluster 6780 Operations Guide—525606-003
A-2
MSGMON
MSGMON
MSGMON is a monitor process that resides in each processor of a server and
executes functions required by the message system. It handles communications
between SNETMON and individual processors.
MSGMON was created to relieve the system monitor subsystem from being involved in
ServerNet cluster duties. It is a helper for SNETMON.
MSGMON is a persistent process but not a process pair. Once it is started, it
terminates only in the event of an internal failure or a termination message from the
$ZPM persistence manager. Once created, MSGMON is started by the $ZPM
persistence manager (and restarted as necessary). MSGMON can be stopped with an
SCF ABORT PROCESS command or as a result of an internal failure.
This list shows the details for the MSGMON process:
SANMAN Subsystem
The external system area network (SANMAN) subsystem enables control of the
external ServerNet fabrics.
The SANMAN process in each ServerNet node provides the services needed to
manage the external ServerNet fabrics and the cluster switches. Every SANMAN
process has equal rights to manage the external fabrics. Each SANMAN process:
•
Manages each node’s access to the external ServerNet fabrics.
•
Initializes, monitors, configures, and controls the switches.
•
Polls the switches at regular intervals.
•
Communicates with other processes or objects that require information from or
about the external fabrics. These processes or objects can include OSM,
SNETMON, and SCF.
Abbreviation MSGMON
Description Message monitor process
Subsystem Name Not applicable
Subsystem Acronym Not applicable
Subsystem Number Not applicable
Recommended Generic Process
Name
$ZZKRN.#MSGMON
Process Name or Process Pair
Name
$ZIMnn, where nn is a processor number
Product Number Included in T0294
Program File Name $SYSTEM.SYSnn.MSGMON