Brocade VDX 8770-4 Hardware Reference Manual - Manual (Page 72)

52 Brocade VDX 8770-4 Hardware Reference Manual
53-1002563-04
Determining the status of a power supply
4
Determining the status of a power supply
Complete the following steps to determine the status of a power supply.
1. Check the alarm LED labeled ALM on the power supply (refer to Figure 17 ). The LED patterns
may temporarily change during POST and other diagnostic tests; for information about how to
interpret the LED patterns, refer to
Table 14 . The Brocade VDX 8770-4 can have up to four
power supplies. Be sure to check each module.
2. Check the power supply status by entering show environment power {rbridge-id rbridge-id}.
Refer to Table 13 for possible results from this command. You can also use the show system
command.
Figure 17 shows a power supply.
FIGURE 17 Power supply
Status LED No light (LED is off) SFM is healthy or is not
powered on. Verify that the power LED is on.
Steady amber SFM is faulty. Ensure that the SFM is firmly seated
and check the status by entering
the show slot command. If the LED
remains amber, consult the
Brocade switch supplier.
Slow flashing amber (on 2
seconds, then off 2 seconds) SFM is not seated correctly
of is faulty. Pull the SFM out and reseat it. If the
LED remains amber, replace the
module.
Fast flashing amber (on 1/2
second, then off 1/2 second) Environmental range
exceeded. Check for the out-of-bounds
environmental condition and
correct it.
TABLE 12 Switch fabric module LED descriptions (Continued)
LED purpose Color Status Recommended action
1 AC power input LED (AC OK) 3 Alarm LED (ALM)
2 DC power output LED (DC OK)
3
2
1