IBM Storwize V5000 Gen 2 Series, Quick Installation Manual

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LEDs on the rear of the expansion enclosure
Figure 123 on page 116 shows the rear view of a 2077-92F expansion enclosure. LEDs on the rear of the
enclosure provide information about each fan module, each expansion canister, and SAS links.
Figure 123. LEDs on the back of the expansion enclosure
The expansion enclosure has four fans. Each fan has one LED; for example, Figure 123 on page 116
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 123 on page 116 also shows, the expansion enclosure contains two expansion canisters. Each
expansion canister contains its own set of LEDs, as shown in Figure 124 on page 116. The LEDs provide
status information about the expansion canister itself and the SAS connections.
Figure 124. LEDs on the back of the expansion canister
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 24 on page 117 describes the values and meaning of each LED.
116 Storwize V5000 Gen2: Quick Installation Guide