2. USAGE CONSIDERATIONS › 2.3 Use Within the Information Structure › 2.3.3 Service Level Analysis › 2.3.3.2 Service Levels: Throughput › 2.3.3.2.4 Throughput Level Analysis

2.3.3.2.4 Throughput Level Analysis

 
CALCULATING THE AMOUNT OF CROSS-DOMAIN TRAFFIC
 
Sometimes the network analyst is faced with the question of
which of the network's host processors is the optimum
location for a given application.  If users in several
domains have access to the application, it is advantageous to
have the application reside in the domain which generates the
greatest load.  With a new application, this location is
often obvious.  But, when an application has been widely used
over a long period of time, some analysis may be necessary to
determine which domain produces the most transactions.  This
analysis can be accomplished fairly easily using the data in
the DETAIL timespan cycles of the NLDM Service (SNTNSV) File
as follows:
 
    1.  Summarize the data to the PLU, PLDOMAIN and SLDOMAIN
 
        %INCLUDE INCLLIB(#SNTMACS);
        MACRO _BY PLU PLDOMAIN SLDOMAIN %
        MACRO _BREAK SLDOMAIN %
        PROC SORT DATA=_dSNTX.SNTNSV01 OUT=DOMAINS; BY _BY;
        RUN;
 
        DATA DOMAINS; SET DOMAINS; BY _BY;
            _NSVSUM
        RUN;
 
    2.  Report the total response event count (NSVTRESC) by
        secondary logical unit domain (SLDOMAIN)
 
        PROC PRINT LABELS DATA=DOMAINS; BY PLU;
        ID PLUDOMAIN;
        VAR SLDOMAIN NSVAVTTM NSVPCOBM;