Brocade Communications Systems 53-1002373-02 manual Replacing a power supply

8 Replacing a power supply

Cabling a fiber-optic transceiver

To cable a fiber-optic transceiver, perform the following steps:

1.Before cabling a fiber-optic transceiver, it is strongly recommended that you clean the cable connectors and the port connectors. For more information, refer to “Replacing a management module” on page 350.

2.Gently insert the two cable connectors (a tab on each connector should face upward) into the port connectors until the tabs lock into place.

Replacing a power supply

You can replace a power supply while the device is powered on and running. For the location of the power supplies (AC or DC) refer to Chapter 1, “Product Overview”.

CAUTION

If you are hot-swapping a module, power supply, or fan tray, allow a minimum of two seconds after a module (or power supply or fan tray) has been removed before inserting a module in the same slot.

Determining which power supply failed

To determine which power supply has failed, enter the show chassis command at any CLI command prompt.

Brocade# show chassis

This command displays status information for the fans and power supplies, and temperature readings for various components in the device. The power supplies are numbered in the display. Refer to “Displaying device status and temperature readings” on page 324 for more information.

If a power supply has failed, the display indicates “Installed (Failed)” and identifies the slot in which the failed power supply is installed.

Setting the threshold for power supply monitoring

The power-supply monitoring threshold command monitors the power supply state, and indicates when a power supply will shut down due to failure.

To set a threshold value for power supply monitoring, enter the following command.

Brocade(config)#power-supply monitoring threshold 3

A Power Supply will be Shutdown if it fails 3 times within an Hour

The power supply will flap three times within an hour, after which the power supply will automatically shut down.

Syntax: [no] power-supply monitoring [threshold <decimal>]

The <decimal> variable specifies the number of flaps within an hour after which a power supply will automatically shutdown. The threshold range is from 0 through 32. The default value is 5. A value of 0 disables the power supply auto-shutdown on flapping.

354	Brocade MLX Series and Brocade NetIron XMR Hardware Installation Guide
	53-1002373-02