SAN Volume Controller 2145-92F expansion enclosure LEDs and indicators

A 2145-92F expansion enclosure has sets of LEDs on the front and rear of the enclosure. Inside of the expansion enclosure, LEDs also indicate the status of the drives and each secondary expander module.

LEDs on the front of the expansion enclosure

As Figure 1 shows, the front of the 2145-92F expansion enclosure contains LEDs for the display panel ( 1 ) and for each of the power supply units ( 3 ).

Figure 1. LEDs on the front of the expansion enclosure

•  1  Display panel LEDs
•  2  Rack retention thumb screws
•  3  Power supply unit LEDs
•  4  Power supply units (PSUs)
•  5  PSU fascia (1U)
•  6  Front fascia (4U)

The display panel ( 1 ) contains three LEDs that describe the operational status of the expansion enclosure. Table 1 describes the function and meaning of the LEDs on the front display panel.

The 2145-92F expansion enclosure contains two PSUs ( 4  in Figure 1) that are accessible from the front of the enclosure. Each PSU has its own a set of LEDs, as shown in Figure 2.

Figure 2. LEDs on the front of a power supply unit

•  1  Input power
•  2  DC power
•  3  Fault indicator

Table 2 explains the function and status that is indicated by each of the LEDs. The power cords for each PSU are accessible from the rear of the expansion enclosure ( 1 ), as shown in Figure 5.

LEDs inside of the expansion enclosure

Each of the drives and secondary expansion modules within the 2145-92F expansion enclosure has two LED indicators. To view the drives and secondary expansion modules, you must remove the cover of the enclosure, as described in Removing the top cover: 2145-92F.

Figure 3 shows the components of a drive assembly. Each drive has an online indicator ( 2 ) and fault indicator ( 3 ).

Figure 3. LEDs on a drive assembly

Table 3 describes the meaning of the LEDs on each drive.

Figure 4 shows the LEDs on a secondary expansion module.

Figure 4. LEDs on a secondary expansion module

•  1  Online indicator
•  2  Fault indicator

Table 4 describes the meaning of the LEDs on each secondary expansion module.

LEDs on the rear of the expansion enclosure

Figure 5 shows the rear view of a 2145-92F expansion enclosure. LEDs on the rear of the enclosure provide information about each fan module, each expansion canister, and SAS links.

Figure 5. LEDs on the back of the expansion enclosure

The expansion enclosure has four fans. Each fan has one LED; for example, Figure 5 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 5 also shows, the expansion enclosure contains two expansion canisters. Each expansion canister contains its own set of LEDs, as shown in Figure 6. The LEDs provide status information about the expansion canister itself and the SAS connections.

Figure 6. 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 5 describes the values and meaning of each LED.