The operator specified the BUFSIZE keyword on either the TRACE CT,MOD,COMP=SYSGRS command or in a CTRACE parmlib member specified on the TRACE CT command. The trace buffer size however, can not be modified while the trace is on.
The system rejects the TRACE CT command.
To change the buffer size of SYSGRS tracing, first enter a TRACE CT,OFF,COMP=SYSGRS command. Then enter a TRACE CT command specifying the desired buffer size and the other options for your desired tracing activity. A valid buffer size for COMP=SYSGRS is a minimum of 64 kilobytes and a maximum of 16 megabytes. If the buffer size is not specified on the TRACE CT command, global resource serialization uses the default size of 64 kilobytes.
To display the current tracing options, enter the DISPLAY TRACE,COMP=SYSGRS command.
Global resource serialization
ISGTSSM
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