expansion canister SAS ports and indicators

Two SAS ports are located in the rear of the expansion canister.

SAS ports are numbered 1 on the left and 2 on the right as shown in Figure 1. Use of port 1 is required. Use of port 2 is optional. Each port connects four data channels.

Note: The reference to the left and right locations applies to canister 1, which is the upper canister . The port locations are inverted for canister 2, which is the lower canister.
Figure 1. SAS ports and LEDs in rear of expansion enclosure
This figure shows the location of the SAS ports and LEDs in the rear of an expansion enclosure.
  •  1  Port 1, 6 Gbps SAS port and LEDs
  •  2  Port 2, 6 Gbps SAS port and LEDs
Four LEDs are located with each port. Each LED describes the status of one data channel within the port. The data channel is shown with the LED. This table indicates the status of the SAS port LEDs on the expansion canister.
Table 1. SAS port LEDs on the expansion canister
LED state Description
Off No link is connected.
Flashing The link is connected and has activity.
On The link is connected.