Upon the detection of a farm device failure, the monitoring software sends a device DOWN event to the segment manager of the N1 Provisioning Server that manages the farm.
The monitoring software sends a device DOWN event only for active farms.
When the segment manager receives a DOWN event from the monitoring software, the segment manager performs the following procedures:
A blocked replacePhysicalDevices request is sent to the farm manager of the farm that owns that device.
A critical error message is logged into the log file to alert operations. The critical message that the segment manager generates contains the failed device's name and the corresponding farm ID.