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 the LED that is farthest from the SAS port.
The Activity LED is the LED that is closest to the SAS port.
The following table describes the SAS port LEDs. Note that 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.
53Installation procedures
Turning on the hardware and verifying operation