Hardware Reference Manual

Brocade VDX 8770-8 Hardware Reference Manual 57

53-1002564-04

Determining the status of a fan

Complete the following steps to determine the status of a fan.

1. Check the LED indicators on the fan (refer to Figure 18). The LED patterns may temporarily

change during POST and other diagnostic tests; for information about how to interpret the LED

patterns, refer to Table 16. The Brocade VDX 8770-8 has up to four fans. Be sure to check

each module.

2. Check the fan status using the show environment fan {rbridge-id rbridge-id | all} command.

Refer to Table 15 for possible results from this command. The RPM of each fan is also

provided. If a fan displays absent or faulty, contact the Brocade VDX 8770-8 supplier to order

replacement parts. Both physically absent or faulty could also be the result of the fan not being

properly seated.

NOTE

You can also use the show system command.

Figure 18 on page 58 shows a fan module.

ALM No light

(LED is off)

The power supply has not failed. No action required.

Steady amber The power supply has failed. Replace the power supply.

TABLE 14 Power supply LED descriptions (Continued)

LED purpose Color Status Recommended action