Recovery Techniques

User data in the MESSAGES/USER DATA policy item can be used to disable additional recovery processing while other recovery is already in progress.

In combination with the predefined keyword DISABLETIME, the recovery disable time can be specified in the formats hh:mm:ss, mm:ss, :ss, or mm. While recovery is disabled, no commands are processed on behalf of this monitor resource for messages and exceptions that are specified in the MESSAGES/USER DATA policy item.

Recovery is automatically enabled after the recovery disable time has expired. Recovery can also be enabled prematurely by calling the INGMON command with the option CLEARING=YES, for example:

INGMON CI2XREP MSGTYPE=XREP CLEARING=YES

In some cases, it is necessary to force increasingly strong recovery actions over a period of time. This can be accomplished using a PASS count that starts at 1 and runs to 99. SA z/OS maintains the PASS count individually per message or exception, and increments the PASS count each time that message or exception is processed. Upon successful recovery, it is the installation's responsibility to reset the PASS count. When specified with option CLEARING=YES, INGMON enables command processing for messages and exceptions, and resets the PASS count.