Legent Corp claims to have the first DB2 performance manager with direct interfaces to MVS and DB2. Its AccuMAX product receives data as events occur, and collects information from System Measurement Facilities records, the MVS subsystem interface, control blocks and DB2 traces. Legent says that by replacing IBM’s Instrumentation Facility Interface with direct interfaces, it offers real-time monitoring and keeps overheads to a minimum. AccuMAX supports DB2 version 2.1 or higher, and it dicplays both current and historical information via Time Sharing Option, the Interactive System Productivity Facility, and VTAM. Other features include concurrent monitoring of multiple DB2 systems, customisable exception analysis, dynamic tracing of applications, and a DB2 operator interface. The exception analysis facility enables users to define which subsystem and application activities to monitor, how to monitor them, and by which means of notification. By using the application trace facility, operators can stop or start DB2 traces to tune and test applications, or to help diagnose problems. The operator interface works in conjunction with the trace facility and enables users to issue DB2 commands from the on-line session rather than from the operator console.
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