6. DATA SOURCES › 6.2 Processing Network Monitor Data From VM Hosts › 6.2.1 Tivoli NetView Performance Monitor (NPM) › 6.2.1.1 NPM Network Collection Function

6.2.1.1 NPM Network Collection Function

The NPM network collection function records volume,
performance, and reliability data as collected in the Network
Control Program (NCP), which is the communication
controller's operating system.

NPM communicates with the Network Performance Analysis
Logical Unit (NPALU) in the NCP to retrieve data that can
then be recorded in its review file, the network log, and/or
SMF (or the VM equivalent).  The CA MICS Network Analyzer is
designed to process the SMF type 28 record, or the VM
equivalent for NPM.

The NPM Network Subsystem produces many subtypes of the SMF
type 28 record.  Of these subtypes, CA MICS processes only
those that are Interval or Monitor Event Records.
Specifically, these are subtypes '10'X, '11'X, '12'X', '13'X,
'18'X, '19'X, '70'X, '71'X, '74'X, '75'X, '77'X, 'A0'X,
'A1'X, 'D6'X, 'D7'X, and 'DC'X.


INTERVAL RECORD

The SMF type 28 record (subtypes '10'X, '11'X, '12'X, '13'X,
'70'X, '71'X, '74'X, '75'X, '77'X 'A0'X, 'A1'X, 'D6'X, 'D7'X,
and 'DC'X) contains load, performance, and reliability data
collected within the user-defined time interval specified in
the INTERVAL operand of the NPM command.  At interval
expiration, NPM requests data from the communication
controller, which it assembles and records to SMF.  More
frequent collection results in more precise data, but at a
higher processing cost for both the network and the CA MICS
Network Analyzer.

MONITOR EVENT/EXCEPTION RECORD/RESOLUTION RECORD

NPM is capable of recording exception conditions recognized
by the NCP.  Exceptions are recorded in the SMF type 28
subtype '18'X and resolutions in SMF 28 subtype '19'X
records.

Note that you must provide an archive file that contains SMF
type 28 records for DAILY processing by the CA MICS Network
Analyzer.