IBM MTM 2145-SV1, Hardware Installation Manual

Page: 183 / 214

The expansion enclosure has four fans. Each fan has one LED; for example,
Figure 141 shows the location of the LED (
▌5▐
) for fan number four. When a fan is
operating normally, the LED is not lit. If a fault is detected, the amber LED is lit.
As Figure 141 also shows, the expansion enclosure contains two expansion
canisters. Each expansion canister contains its own set of LEDs, as shown in
Figure 142. The LEDs provide status information about the expansion canister itself
and the SAS connections.
▌1▐
Canister fault
▌2▐
Canister status
▌3▐
Canister power
▌4▐
and
▌6▐
SAS link fault
▌5▐
and
▌7▐
SAS link operational
▌8▐
Canister release handles
Table 21 on page 150 describes the values and meaning of each LED.
svc01010
8 7 7 8
1 2
4
5
3
6
9
Figure 141. LEDs on the back of the expansion enclosure
2
1
S
A
S
2 3 1 4 5 6 7
svc01070
Figure 142. LEDs on the back of the expansion canister
Chapter 4. Installing an optional 5U SAS expansion enclosure
149