Before powering on the storage system, you need to ensure that all expansion cables are correctly connected. The storage system may work improperly if the connection mode of expansion cables is adjusted after the storage system is powered on.

If none of the controller enclosures in the cluster are powered on, you can log in to the BMC system using the external management IP address of the BMC and run the power-on command to power on all the controller enclosures.

To power on the storage system after an emergency power-off, you need to press the power button on the controller enclosure.

For Huawei OceanStor Dorado 8000 storage, after a controller enclosure is powered on, its cascaded disk enclosures will be automatically powered on.