When two fans in a Dell EMC PowerStore system are faulted, the system's behavior is to send an increased fan speed signal to the surviving fans to compensate for the loss and continue normal operations. This is a part of the system's design to ensure redundancy and maintain cooling within operational parameters even when one or more fans are not functioning1.
The system monitors the health of all fans continuously. If a fan fault is detected, the system will:
Generate an alert to notify the administrator of the fault.
Increase the speed of the remaining fans to prevent overheating.
Continue to operate normally unless the temperature exceeds safe operating limits.
The administrator should then take the following steps:
Acknowledge the alert in the PowerStore Manager.
Plan for the replacement of the faulted fans as soon as possible to restore full redundancy.
Follow the replacement procedures as outlined in the Dell PowerStore Installation and Service Guide2.
It is important to address fan faults promptly to ensure the long-term health and performance of the PowerStore system. The increased fan speed is a temporary measure to maintain operations until the faulted fans can be replaced.