APT_SAS_DEBUG_LEVEL
Set the APT_SAS_DEBUG_LEVEL environment variable to specify the level of debugging messages to output from the SAS driver.
APT_SAS_DEBUG_LEVEL takes the following syntax:
APT_SAS_DEBUG_LEVEL=[0-3]
The values of 1, 2, and 3 duplicate the output for the -debug option of the SAS operator:
no, yes, and verbose.