4.5.2 Processing in the event a host reset has failed (multi-standby)
This subsection explains the processing that occurs when a host reset fails in a hot-standby configuration using the multi-standby function.
- Organization of this subsection
(1) If reset of an active system has failed
If a failure occurs on an active system and reset of that active system has failed, HA Monitor places in hot-standby wait state only the standby server with the highest priority among all standby systems.
The following figure shows the processing that occurs when reset of an active system has failed in a hot-standby configuration using the multi-standby function.
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In this example, an operator intervention is required. For details about how to start a server in the hot-standby wait state as an active server, see 7.4.1 Starting a server in the wait state and then restarting jobs.
(2) If reset of a standby system has failed
If reset of a standby system has failed, HA Monitor can no longer determine the priority in a configuration where multiple standby systems are used, in which case multiple active servers might be running. In order to prevent multiple active servers from running, HA Monitor terminates the standby servers whose priority is lower than that of the standby server that is running in the standby system resulting in the failure.
The following figure shows the processing that occurs when a reset of a standby system has failed in a hot-standby configuration using the multi-standby function.
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In this example, an operator intervention is required. For details about how to start a standby server, see 7.2.1 Starting.