Brocade VDX 6740 Hardware Reference Manual (Supporting VDX 6740, VDX 6740T, and VDX 6740T-1G) - Manual (Page 52)

40 Brocade VDX 6740 Hardware Reference Manual
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Power supply replacement in a Brocade 6740T and 6740T-1G
5
Determining the need to replace a power supply
Use one of the following methods to determine the status of the power supplies:
• Check the power supply status LED.
• Enter one of the following commands in the command line interface to display power supply
status:
- show chassis
- show environment power
• Check the power supply status in the Web Tools application.
Time and items required
Replacing a power supply in the Brocade VDX 6740T and Brocade VDX 6740T-1G should take less
than two minutes to complete.
You need the following items to replace a power supply in a Brocade VDX 6740T:
• A new power supply (must have the same part number and the same airflow label as the power
supply being replaced)
• A #1 Phillips screwdriver
Replacing the power supply
Complete the following steps to replace a power supply in a Brocade VDX 6740T and Brocade VDX
6740T-1G.
1. To leave the Brocade VDX 6740T and Brocade VDX 6740T-1G in service while replacing a
power supply, verify that the other power supply (the one not being replaced) has been
powered on for at least four seconds and hasa steady green status LED.
2. Ensure that the replacement power supply has the same part number and airflow label as the
power supply being replaced.
3. Unplug the power cord from the power supply that is being replaced.
4. Using the Phillips screwdriver, unscrew the two captive screws on the power supply.
TABLE 7 Brocade VDX 6740T and Brocade VDX 6740T-1G power supply status LED behavior,
description, and required actions
LED color and behavior Description Action required
Off (no light) Power supply is not receiving power or is off. Verify that the power supply is on and
seated and the power cord is
connected to a functioning power
source.
Steady green Power supply is operating normally. No action is required.
Blinking green Power supply cable is disconnected - blinking
green for ~20 seconds, then off.
The power supply has failed or the power
supply airflow is different from system policy. Check the power cable connection.
Check the power supply airflow
direction and replace the power supply.