DS_NO_INSTANCE_PURGING
Set this environment variable to stop Auto-purge from purging status records for multi-instance jobs in a job sequence.
Set DS_NO_INSTANCE_PURGING=1 if Status=99 errors occur when
running many multi-instance jobs and auto-purge is enabled. Setting
this environment variable stops Auto-purge from purging the status
records for job instances, allowing the controlling job to read the
status records when system resource becomes available.