Responder Manager | Event Messages |
If the Compaq FTAM responder process is running as a NonStop process pair, the backup Compaq FTAM responder process takes over, and your remote application must reinitiate its Compaq FTAM associations. You or your application should then check and verify all previous work performed using the Compaq responder, correct inappropriate file states left from the component failure, and proceed as appropriate to the needs of your application.
The process of verifying work performed before a hardware or software component failure and recovering from unknown file states is different for every application. The main recovery strategies depend on the type of activity in progress during component failure:
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Reading from a file
Writing to a file that your application created Writing to a file that already existed
In the case of reading a file, no recovery is necessary. The Compaq responder does not modify files opened for reading only.
In the case of writing to a file, you should probably consider the file unusable. If you created the original file, the best recovery might be to delete the unusable file and recreate it. If you were writing to a file that you did not create and whose contents you cannot
FTAM configurable files cannot be opened by the responder.
Event Messages
The Event Management Service (EMS) on Compaq systems enables the Compaq problem solver to monitor problems and other significant events that occur during the operation of Compaq FTAM and other Compaq software.
Whenever a Compaq process such as the FTAM responder detects an event that might affect its operation, it generates an event message describing the event. Such event messages can be related to hardware or software malfunctions, or to important changes in the state of a system component. Text (readable) versions of these event messages can be displayed as operator messages: for example, in an operator console log or on a terminal running the ViewPoint operations console application. For detailed information on the event messages sent by Compaq FTAM processes, see the OSIFTAM and OSIAPLMGR sections of the Operator Messages Manual.
Event messages generated by FTAM responder and APLMGR processes can alert the Compaq problem solver to the following kinds of problems:
•System problems such as CPU failures, process failures, and unavailability of system resources such as LCBs
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Interoperability problems that cause
Configuration problems, such as mismatches between the common names and OSI addresses configured in the APLMGR MIB and those in the OSI manager MIB
