Example 2: Inadequate Power To Remove A Power Supply; Adding A Power Supply; Hot Swapping A Power Supply; Permanently Removing A Power Supply - Alcatel-Lucent OmniSwitch 9800E Hardware User's Manual

Chassis and Power Supplies

Example 2: Inadequate Power to Remove a Power Supply

1
Enter the show chassis command. A screen similar to the following displays:
-> show chassis
Model Name:
Description:
Part Number:
Hardware Revision:
Serial Number:
Manufacture Date:
Admin Status:
Operational Status:
Free Slots:
Power Left:
Number Of Resets:
In this example, the "Power Left" field displays 400 unused watts. If one power supply is disabled, the
switch's power budget will be exceeded by at least 80 watts (400 – 480 = – 80). If a power supply is shut
off or removed for any reason, the switch will automatically power down NI modules until the power
budget shortfall has been corrected.

Adding a Power Supply

You can add a power supply to the chassis at any time without disturbing the switch's network functions.
You are not required to power down the switch.

Hot Swapping a Power Supply

Hot swapping a power supply refers to the action of replacing a power supply while the switch is operat-
ing. To hot swap a power supply without disrupting switch operations, you must first have power supply
redundancy. Otherwise, switch operations may be disrupted.

Permanently Removing a Power Supply

If you plan to permanently remove a power supply from the chassis while the switch is operating, verify
that you have effective power supply redundancy before doing so. Otherwise, switch operations may be
disrupted.
Additional Information. For instructions on installing and removing power supplies, refer to
through page 2-27. For information on power supply redundancy, refer to
page 2-24.
OmniSwitch 9000E Series Hardware Users Guide
OS9700E,
OS9700E,
901748-ÿÿÿ,
202,
1467014A,
NOV 16 2005,
POWER ON,
UP,
8,
400,
2
December 2008
Monitoring Chassis Power
page 2-25
"Power Supply Redundancy" on
page 2-23