SET MODE

Authorization

Privilege Class: A, F

Purpose

Use SET MODE to set the error-recording mode for system-recovery machine checks (soft errors).

Note: When the hardware recovers from an error without software assistance, it issues a system recovery machine check interrupt to report the incident.

Operands

RETRY: is an optional keyword provided for compatibility with earlier systems.
Quiet: turns off error recording of system recovery machine checks.
Record: turns on error recording of system recovery machine checks. The next 12 system recovery machine checks are recorded. After that, the system automatically returns to QUIET mode and you receive a message informing you of that condition.
When a warning machine check occurs, a message is issued and further warning machine checks are disabled. The system then runs disabled for further warning machine checks until the SET MODE RECORD command is issued.

Usage Notes

In addition to turning on and off system recovery machine check recording, you can use this command to reenable warning machine checks.

Responses

Response 1:

SYSTEM RECOVERY {QUIET } MODE ACCEPTED
                {RECORD}

indicates that the command has been accepted.

Messages

HCP003E Invalid option - {option|command contains extra option(s) starting with option}
HCP026E Operand missing or invalid
HCP6005E Option option is not supported by z/VM.