Availability Guide for Problem Management

Problem Management Tools

Availability Guide for Problem Management–125509

9-10

Event Management Service (EMS) Analyzer

EMS messages provide important information about devices, subsystems, and

applications. Tandem subsystems, such as Expand, NonStop Transaction Manager/MP

(TM/MP), Pathway, and NonStop SQL/MP, as well as your own applications, can

generate thousands of messages. EMS Analyzer allows you to examine and analyze this

information, which is saved in the EMS event log files. Without EMS Analyzer, you

need to write and compile your own EMS filters using the EMS filter language.

You can use EMS Analyzer’s default filter to specify a set of search parameters, or you

can use your own custom filter with EMS Analyzer. Based on the parameters that you

set, EMS Analyzer extracts information relating to critical events, availability, and

performance of subsystems and devices.

Using EMS Analyzer for Problem Analysis and Administration

After you have set the search parameters, EMS Analyzer gives you several ways to view

the output. The output can be directed to a terminal for viewing or to a spooler for

printing. Also, you can design specific reports with the output. You can direct the output

to an ENSCRIBE database or to a comma separated values (CSV) file. You can create

Enform reports based on the Enscribe data files. Sample Enform reports are provided to

get you started. If you direct EMS Analyzer output to a CSV file, you can use a PC or

Macintosh for analysis and reporting.

You can also use EMS Analyzer as a debugging tool for EMS event messages. When an

application generates EMS events, you can use EMS Analyzer to isolate and view a

specific event in a token format.

How EMS Analyzer Works

Tandem subsystems or your own subsystems send event messages to the primary

collector, $0, or to an alternate collector. These messages are logged in EMS log files.

The events from either the collector or the log files are filtered by the EMS Analyzer

filter (either the default filter or your own filter). EMS Analyzer sends the selected

events to a terminal, the spooler, or a database. Command files can be used as input files

to EMS Analyzer. Figure 9-2 illustrates the EMS Analyzer architecture.