Tivoli NetView Session Monitor/NLDM
Tivoli NetView Session Monitor, formerly known as the Network Logical Data Manager (NLDM) product, is an operational performance tool used to monitor and manage day-to-day network operations. One of NetView's functions is to collect, display, and record session response time data by requesting and accepting response time data from the Response Time Monitor (RTM), which is a microcode function that is provided in the 3174 and 3274 cluster controllers. NetView records the response time data in the NetView external log record, which may be written to SMF as the type 39 subtypes 1, 2, 4, and 5 records. The NetView Session Monitor/NLDM also records session configuration, the data traffic, connect, and VTAM BIND failure information in the SMF type 39 subtypes 2, 3, 4, 5, and 6 records. This information is referred to as NetView accounting and availability data. The
MICS Network Analyzer
Option processes the SMF type 39 subtypes 1 through 6 record to add RTM and accounting and availability data to the product database.rm
Tivoli NetView Session Monitor, formerly known as the Network Logical Data Manager (NLDM) product, is an operational performance tool used to monitor and manage day-to-day network operations. One of NetView's functions is to collect, display, and record session response time data by requesting and accepting response time data from the Response Time Monitor (RTM), which is a microcode function that is provided in the 3174 and 3274 cluster controllers. NetView records the response time data in the NetView external log record, which may be written to SMF as the type 39 subtypes 1, 2, 4, and 5 records. The NetView Session Monitor/NLDM also records session configuration, the data traffic, connect, and VTAM BIND failure information in the SMF type 39 subtypes 2, 3, 4, 5, and 6 records. This information is referred to as NetView accounting and availability data. The
MICS Network Analyzer
Option processes the SMF type 39 subtypes 1 through 6 record to add RTM and accounting and availability data to the product database.The INPUTSMF DD statement specifies the data set name for the NetView Session Monitor/NLDM Files. It is your responsibility to provide an archive file that contains the SMF type 39 records for daily processing by the
MICS Network Analyzer
Option.Response Time Monitor
The RTM function is provided in the 3274 and 3174 cluster controllers. This function includes a specific microcode support level and a hardware timer adapter card that is read by the microcode. NetView/RTM data includes average response time, a count of the responses that occurred within user-defined response distribution times, and an indicator of whether site-defined service objectives were met during the data recording interval.
Since service objectives may be defined differently for different network users, NetView/RTM permits the data center to define performance classes and to associate each response objective with a specific performance class. A performance class can be anything the data center defines, from a group of sessions that are attached to a particular cluster controller to all TSO sessions. Performance classes are established using the NetView PCLASS and MAPSESS definition statements.
When the NetView/RTM function is activated, the SMF type 39 record will be written at user-defined intervals and at session termination. The NetView COLLECT command is used to produce type 39 subtype 1 records on an interval basis. To implement this feature, the data center must build and invoke an NCCF CLIST to issue the COLLECT command at periodic intervals.
NetView/RTM data is produced only for cluster controllers with the microcode update and for sessions specifically requested through the PCLASS and MAPSESS definition statements. In addition, interval records are produced only when the COLLECT command is issued or when it is invoked periodically by an NCCF CLIST.
Accounting and Availability
NetView accounting and availability (A/A) measurement data consists of statistical data about user sessions, including connect time, message and data traffic counts, configuration data, and BIND failure information.
When the NetView A/A function is activated, the SMF type 39 record is written at session start, at session end, at user- defined intervals, and when a session is rejected due to a BIND failure. The NetView RECORD command is used to produce type 39 subtype 5 A/A records on an interval basis. To implement this feature, the data center must build and invoke an NCCF CLIST, which issues the RECORD command at periodic intervals.
Note that the NetView COLLECT command, which requests the production of SMF type 39 subtype 1 records containing RTM data, and the NetView RECORD command, which requests the production of SMF type 39 subtype 5 records containing A/A data, are not automatically synchronized. Thus, the data recorded for each function may represent information from different time periods. If you want to compare RTM and A/A data for a given user session, ensure that the COLLECT and RECORD commands are invoked together. This does not completely ensure that data from each source is for the same time period, but it is the surest way to attempt such correlation of data. (RTM and A/A data are both included in the session termination record, assuming they are both being collected.)