IEAH804E   System trace Mode option has been active for a longer time than the checkowner_or_installation-defined duration. It was activated on datemdy4 at timehmsc.

Explanation

Check (IBMSYSTRACE, SYSTRACE_MODE) found an exception condition. System Trace is using the MODE=ON parameter of the TRACE command, and has been active for a longer time than the defined duration. The trace runs continually, and leaving Mode tracing (MODE = ON) can affect the system's performance. Use Mode tracing only for short periods of time to solve a specific problem and do not use Mode tracing as the default for system tracing on your system. MODE=ON is intended for use in system software problem determination and diagnosis situations only.
datemdy4
The local date when the first TRACE Mode option was set on.
timehmsc
The local time when the first TRACE Mode option was set on.

System action

n/a

Operator response

n/a

System programmer response

n/a

Problem determination

n/a

Source

SYSTRACE (System Trace)

Module

IEAVTSHC

Routing code

n/a

Descriptor code

n/a

Automation

n/a

Reference Documentation

See z/OS MVS Diagnosis: Tools and Service Aids for more information on System Trace about how to customize System Trace. See z/OS MVS System Commands for information about the TRACE and DISPLAY TRACE commands.