AUXTRSW

The AUXTRSW parameter specifies whether you want the auxiliary trace autoswitch facility.

AUXTRSW={NO|ALL|NEXT}
Valid values are as follows:
NO
Disables the autoswitch facility.
NEXT
Enables the autoswitch facility to switch to the next data set at end of file of the first data set used for auxiliary trace. Coding NEXT permits one switch only, and when the second data set is full, auxiliary trace is switched off.
ALL
Enable the autoswitch facility to switch to the inactive data set at every end of file. Coding ALL permits continuous switching between the two auxiliary trace data sets, DFHAUXT and DFHBUXT, and whenever a data set is full, it is closed and the other data set is opened.