Use the following parameters to collect a trace from an ARSEXOAM job:
//STEP1 EXEC PGM=ARSEXOAM,REGION=0M
//STEPLIB DD DISP=SHR,DSN=ARS.xxx.SARSLOAD
// DD DISP=SHR,DSN=DB2.xxx.SDSNEXIT
// DD DISP=SHR,DSN=DB2.xxx.SDSNLOAD
// DD DISP=SHR,DSN=DB2.xxx.SDSNLOD2
//DSNAOINI DD PATH='/etc/ars/Vxxx/cli.ini'
//SYSPRINT DD SYSOUT=*
//SYSOUT DD SYSOUT=*
//ARSPARM DD *
odinstance=ARCHIVE
oduser=<USERNAME>
oduserpw=<PASSWORD>
commitcnt=1
unloadmax=1
tracefile=/tmp/expir1.trc
tracecomp=390EXP=15
/*
And then format the trace with arstfmt before attempting to view or sending to support.
Ed