On the ES NAS, what do the four indicators on the bottom-left corner of the rear of the controllers show?
These four indicators display major system information, and help users to determine the current status of the ES NAS.
First from left: System Status Indicator. Displays three different statuses: Off (the system is turned off), blinking (the system is starting up), and green (the system is working normally).
Second from left: Fan Status Indicator. Displays 2 different statuses: Blinking (the fan is not working normally), and green (the fan is working normally).
Third from left: Backup Battery Unit (BBU) Status Indicator. Displays four different statuses: Red (the BBU is not working normally), orange (BBU is charging), blinking (the connection to the mains power is lost, the BBU is supplying power for the Copy-to-Flash operation), green (the BBU is working normally).
Fourth from left: System High Availability (HA) Status Indicator. Displays 3 different statuses: Orange (takeover mode), blinking (takeover or giveback in progress), green (the system is working normally).
These four indicators display major system information.
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