OSI/FTAM Configuration and Management Manual

Planning, Installing, and Configuring Tandem FTAM
OSI/FTAM Configuration and Management Manual—421944-001
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Controlling System Performance
For example, to allow the responder $FTR1 to post a maximum of four attaches and to
service a maximum of four associations, you could configure the process with the
following command:
ADD PROCESS $AMGR.#FTAMR.FTR1, NAME $FTR1, &
PROFILE $AMGR.#VFS.VFS1, MAXASSOC 4, MAXATTACH 4
If your responder is extremely short on memory space, you might want to set
MAXATTACH to a value less than MAXASSOC, to conserve memory space in the
responder.
Maximum Number of Configurable Processes
You can use the MAXFTAMI and MAXFTAMR attributes of the SUBSYS object to
limit the number of initiator and responder processes that can be configured. These
attributes both have a value in the range of 1 to 128 and default to 128. An APLMGR
process can manage a maximum of 128 initiator and 128 responder processes. SCF
issues an error message if you attempt to add a process that would increase the total to
greater than the configured maximum. For example, to set an error message to be issued
on an attempt to configure more than 16 initiator processes or 32 responder processes,
you could issue the following command:
ALTER SUBSYS $AMGR, MAXFTAMI 16, MAXFTAMR 32
If your application is large enough that you need to configure more than 128 initiator or
responder processes, you can configure your system with multiple APLMGR processes
(multiple APLMGR subsystems).
Execution Priority
Another PROCESS object attribute that affects system performance is PRIORITY. This
attribute defines the operating system execution priority for the process you are
configuring. When you set a higher numeric priority for a process, that process preempts
all processes with lower-numbered priorities. The PRIORITY attribute has a value in the
range of 1 (lowest) to 199 (highest) and defaults to the execution priority set for the
APLMGR process. For example, to override the default and set the execution priority
for the initiator process $FTI2 to 160, you could configure the process as follows:
ADD PROCESS $AMGR.#FTAMI.FTI2, NAME $FTI2, COMNAME "FTMI2", &
PRIORITY 160