STARTSTOPMSGDSN

You can specify this command only in the EQAOPTS load module. It cannot be specified at run time.

You can use this command to indicate that you want z/OS® Debugger to write a message in the message file when the debug session is started and stopped.

The following diagram describes the syntax of the STARTSTOPMSGDSN command:
Read syntax diagramSkip visual syntax diagramEQAXOPTSTARTSTOPMSGDSN, 'file_name' ,LOUD
'file_name'
Specifies an MVS sequential data set with FB LRECL 80 characteristics. It is recommended that you allocate sufficient space for the file and perform regular maintenance by removing outdated messages. In a CICS environment, the region owner must have the update authority to the data set.
LOUD
Specifies that z/OS Debugger displays WTO messages, which help you debug processing done by this command. z/OS Debugger normally does not display any messages when it operates on the data set. If you try to determine problems related to the data set, specify LOUD to view any related messages.

Example

EQAXOPT STARTSTOPMSGDSN,'EQAW.SSMSG.LOG'