User guide

Chassis and Power Supplies Monitoring Chassis Power

OmniSwitch 7700/7800 Hardware Users Guide April 2005 page 2-19

Example 2: Inadequate Power to Add a Module

1 Enter the show chassis command. A screen similar to the following displays:

-> show chassis

Model Name: OSR-F80,

Description: OSR-F80,

Part Number: 901748-ÿÿÿ

Hardware Revision: 202,

Serial Number: 1467014A,

Manufacture Date: NOV 16 2001,

Admin Status: POWER ON,

Operational Status: UP,

Free Slots: 9,

Power Left: 40,

Number Of Resets: 2

Note that the “Power Left” field in the table output shows 40. This value, displayed in watts, indicates that

only 40 watts are available for additional hardware.

2 Tabulate the power requirements for the module(s) to be added. For example, let’s say that the

following module is to be added to the chassis:

• OS7-GNI-U12 (48 watts)

As shown, the total power required for the incoming module is 48 watts. If the module is installed, the

switch’s power budget will be exceeded by at least 8 watts. The module will not be power on until:

• One or more modules are removed from the chassis and the switch is rebooted

• An additional power supply is added (if applicable) and the switch is rebooted