JES2 provides several recovery routines to isolate the effects of JES2 programming errors. A JES2 processor can specify a processor recovery routine to be given control when an error occurs.

Until an installation-specified error rate is reached, recovery is automatically attempted and a dump issued. When the error rate threshold has been reached or exceeded, you are required to authorize the recovery attempt. You can also suppress the dump. The error rate threshold is specified on the RECVOPTS initialization statement.

When an error occurs, JES2 issues the $HASP095 message to describe the error. When the error rate is reached, JES2 issues $HASP070 SPECIFY RECOVERY OPTIONS - (‘RECOVER' OR ‘TERMINATE' OR ‘SNAP', AND, OPTIONALLY, ‘,NODUMP').

Use the $T RECVopts(type) command to specify the error rate threshold below which automatic SVC dumps are issued and to specify the rate below which you are not involved in the recovery process. The (type) parameter specifies the type of recovery for which you will not receive the $HASP070 message.