Open System Services Management and Operations Guide (G06.25+, H06.03+)

Managing Servers
Open System Services Management and Operations Guide—527191-002
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Configuring an OSS Name Server
Configuring an OSS Name Server
You configure an OSS name server by adding or deleting an entry for it in the Enscribe
database ZOSSSERV file. Remember that a fileset cannot be managed by more than
one OSS name server; however, an OSS name server can manage more than one
fileset.
To add a new OSS name server to a configuration, follow the procedure described in
Adding a Server on page 4-26. To remove an OSS name server from a configuration,
follow the procedure described in Removing an OSS Name Server on page 4-46.
If the initial or default values for the attributes of a specific OSS name server are not
optimal, see the procedure described in Reconfiguring an OSS Name Server on
page 4-43. The attribute values appropriate to the best performance on a specific
system depend on factors unique to each site’s configuration and mix of applications.
Use nondefault values to tune your system only after gathering performance data,
analyzing process memory requirements, and considering the effects of a default
configuration on system overhead.
Configuring the OSS Message-Queue Server
You configure the OSS message-queue server by changing its entries in the Enscribe
database ZOSSSERV file. The following procedure assumes that no applications that
use message queues have been started yet:
1. To stop the OSS message-queue server, enter this OSS Monitor SCF command:
STOP SERVER $ZPMON.#ZMSGQ
2. Use the OSS Monitor SCF ALTER SERVER Command to change the ZOSSSERV
entry for the OSS message-queue server.
a. To reassign the process to a new primary or backup processor, change the
corresponding processor entry. If you do not explicitly assign a backup
processor, the backup server process is started in the next higher-numbered
processor after the processor that runs the primary server process.
b. To change behavior associated with use of the automatic startup service,
change the corresponding BACKUPCPUOK, MAXWAITTIME,
DESIREDSTATE, or AUTORESTART entry.
c. To change the message-queue configuration, change the corresponding
MSGMQB, MAXMQID, MAXMSG, or MSGMSIZE entry. The attribute values
appropriate to the best performance on a specific system depend on factors
unique to each site’s configuration and mix of applications.
Use nondefault values to tune message-queue performance on your system
only after gathering performance data, analyzing process memory
requirements, and considering the effects of a default configuration on system
overhead because of the volume of interprocess communication involved.