TS/MP System Management Manual (G06.24+, H06.03+)

Configuring Objects in a PATHMON Environment
NonStop TS/MP System Management Manual—541819-001
3-33
Steps to Optimum Link Configuration
Resolving the equation yields a MAXLINKS value of 1, which means that in this sample
configuration, each server process can have just one link to a link manager at a given
moment; and 120 server processes can run at any one time. Thus, the configuration
provides for a maximum of 120 links, adequate to support the 120 links required.
Note that if common sense tells you that the value of MAXLINKS is too high in relation
to the value of MAXSERVERS, you should increase the value of MAXSERVERS and
allow MAXLINKS to decrease. Consider a hypothetical configuration including these
values:
250 = 500 TCP links required
MAXSERVERS=2
This hypothetical configuration works on paper, but in a production application, up to
250 requester processes could be attempting to share the services of 2 server
processes, leading to many concurrent, outstanding requests to the server class. A
rule of thumb to follow is that the value of MAXSERVERS can range from the result of
the formula in Step 6 up to the total number of links required (from Step 7). For the
hypothetical configuration above, this rule of thumb indicates you could consider
increasing the value of MAXSERVERS to a number up to 500.
Step 9 Adjust Values for COBOL Servers
This step adjusts the values in Step 8 based on whether your application includes
COBOL server classes. For COBOL server classes, the value specified in the
RECEIVE-TABLE OCCURS clause must be greater than or equal to the number
specified for MAXLINKS. If you find that the value for MAXLINKS is greater than the
value in the RECEIVE-TABLE OCCURS clause, ignore the results of Step 8 and do
these:
1. Set MAXLINKS to the RECEIVE-TABLE OCCURS value
2. Calculate MAXSERVERS using this formula:
using values from Step 8 for MAXSERVERS and no. of links. Then adjust
MAXSERVERS up until you get a MAXSERVERS value that, when inserted into the
formula from Step 8:
MAXLINKS = no. of links required
MAXSERVERS
yields a value for MAXLINKS that equals the value of RECEIVE-TABLE in formula A.
MAXSERVERS = no. of links required ----------------> from formula in Step 7
MAXLINKS