NOTE: If an equipment room has a high temperature, three alarms will be generated indicating that the temperature of the S3900 disk enclosures is too high, the temperature of the S3900 disk enclosures is extremely high, and the temperature of the S3900 disks is too high. However, the controller enclosures have been powered off due to a high temperature before the three alarms are generated. Therefore, the three alarms may appear or not appear.
Check the temperature of the equipment room.
If the temperature is normal, power on the S3900 to check whether the power-on succeeds.
If the power-on succeeds, the fault is rectified. If the power-on fails, a component in the S3900 may be faulty. (The fault may be caused by the over-temperature or may occur on the component itself.) Collect system logs to diagnose the fault.