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

Configuring Objects in a PATHMON Environment
NonStop TS/MP System Management Manual—541819-001
3-29
Steps to Optimum Link Configuration
9. Adjust values based on the value in of the TABLE OCCURS clause in the
RECEIVE-CONTROL paragraph of your COBOL server programs.
10. For Pathway/iTS environments, calculate additional TCP attributes.
Note that this approach is geared to generate the correct configuration values for a
single server class. You need perform steps 1, 2, and 8 just once for a given system
configuration; however, steps 3-7 must be repeated for each server class. When you
have arrived at the values for each server class, you can total some of the values to
get a basis for configuring global attributes such as PATHWAY
MAXSERVERPROCESSES.
Step 1 Identify Number of Pathsend Requesters and
Terminals
Identify how many Pathsend requesters and, if your environment includes
Pathway/iTS, how many terminals your application environment must support. Multiply
these by a safety factor—for example, 1.5—to allow for future application growth.
The formula for Pathsend requesters is:
Pathsend requesters x constant = total Pathsend requesters
The formula for terminals is:
terminals x constant = total terminals
For example:
2000 existing terminals x 1.5 = 3000 total terminals
Step 2 Determine Total LINKMON Processes and TCPs
Required
Your application has one LINKMON process per processor. If your environment
includes Pathway/iTS, a good rule of thumb is to configure one TCP for every 50
terminals. For example:
6 CPUs x 1 LINKMON per CPU = 6 LINKMON processes
3000 terminals
50 terminals per TCP = 60 TCPs
Step 3 Calculate Working Average Transaction Volume
Identify the types of transactions the application is to handle, such as inquiries,
withdrawals, or summing transactions. For each transaction type, estimate the
average transaction volume, or arrival rate, and multiply it by a safety factor
(constant)—for example, 1.5—to allow for fluctuations in transaction volume. The
result is the working average transaction volume in transactions per second.