3Com 4007, Implementation Manual, Page: 119 / 684

Budgeting Power 119
The EME provides initial module power consumption values from the
power consumption table that it maintains:
■
When an EME powers on a module, it adjusts the available power
budget to reflect the power consumption of the newly powered-on
module.
■
The EME then powers on remaining modules (by power class and slot
location) to the limit of the unallocated power budget.
By maintaining an accurate power budget, an EME can determine which
installed modules to:
■
Power on.
■
Power off to bring module power consumption under budget (if any).
■
Place in power pending state due to a lack of sufficient unallocated
power budget to power them on.
Increasing the
Unallocated Power
Budget
This section describes actions that you can take to increase the
unallocated power budget whenever you need more power for installed
switch fabric modules and interface modules, or to power on newly
installed modules.
To increase the unallocated power budget:
1 Add one or more power supplies.
For instructions and information, see the
7-Slot Chassis Power Supply
Installation Guide , which is available on the Switch 4007 Software and
Online Manuals CD or from the 3Com Web site.
2 If the chassis is running in power fault-tolerant mode, change the power
mode to power non-fault-tolerant to make reserve power available to all
installed modules.
3 Manually power off selected modules until you have enough power.
show power mode
Whether power fault-tolerant or power
non-fault-tolerant mode is currently in effect for the
chassis. Also indicates whether
overheat_auto_power_down
is enabled or
disabled.
show power all
All information that the preceding commands display.
Table 27 Selected EME Power Management Commands
Command Name Displays