5
Locate the SAS port LEDs.
Note: The illustration shows the LEDs for port B in the top I/O module. The
LEDs for all six ports are the same.
The Fault LED is farthest from each SAS port.
The Activity LED is closest to each SAS port.
The following table describes the SAS port LEDs. The combination of both
LEDs provides the status.
Fault (amber) LEDActivity (green) LEDStatus
OffOffNo cable present
OffOnCable present, no activity
OffBlinking if one or more disk
drives are active.
Cable present, all links
active
OnOffCritical fault
Blinking at a rate of one
second on, and one second
off.
Blinking if one or more disk
drives are active.
Non-critical fault
6
Move to the front of the storage shelf.
119Adding one or more storage shelves to an operating 4TB appliance that does not have any storage shelves
Turning on the hardware and verifying operation