TS/MP 2.5 System Management Manual

In this example, “45 tps” is the working average transaction volume from Step 3, and “2 seconds”
is the server class response time as measured.
45 tps x 2 seconds = 90
The transaction type requires 90 active links to the server class.
NOTE: A transaction type might access more than one server class to complete the transaction.
The transaction might even access a given server class more than once. Be sure to account for all
transaction accesses when making this calculation.
Step 6 Calculate Total Active Links: the MAXSERVERS attribute
Now add the active links for all the transactions that use the server class to get a figure for the total
active links the server class must support. This figure is the value you specify for the MAXSERVERS
attribute for the server class. MAXSERVERS specifies the number of server processes that must be
able to run in the server class at the same time to satisfy potential demand for active links.
For example, suppose transaction-1 requires 90 active links to the server class, transaction-2 requires
5 active links, transaction-3 requires 10 active links, and transaction-4 requires 15 active links.
90 + 5 + 10 + 15 = 120 total active links required
The value you specify for MAXSERVERS must be 120.
NOTE: Because it is recommended that you run your application with static servers only, you
must specify the same value for NUMSTATIC that you specify for MAXSERVERS.
Step 7 Calculate Link Manager Demand for Links
Use the results from Steps 2 and 6 to determine how many links are required to support your link
manager environment. This value is used in Step 8 to calculate the value for MAXLINKS.
LINKMON Processes
For LINKMON processes, use this formula:
x no. of CPUsMAXSERVERSconstant xno. of links
required =
no. of CPUs
where the constant is a safety factor, MAXSERVERS is the result of Step 6, and no. of CPUs
is the total number of CPUs that have LINKMON processes configured. The result, no. of links
required by LINKMON processes, is the total potential LINKMON demand for links to the
server class.
This example uses the value 1 as the constant:
= 20MAXSERVERS=1201 x
6 CPUs
20 x 6 CPUs = 120 links required by the LINKMON processes
Assuming the norm of one LINKMON process per processor, this configuration supports six
LINKMON processes sharing 120 links.
72 Configuring Objects in a PATHMON Environment