Intelligent Power Subsystem Features; Power Management - 3Com 3CB9E7 - CoreBuilder 9000 Chassis Switch Getting Started Manual

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PPENDIX NTELLIGENT

Intelligent Power Subsystem Features

Table 14 lists the intelligent power management
features.
Table 14 Intelligent Power Subsystem Features
Feature
Load-sharing power
supplies
Front and rear
loading accessibility
Dedicated power
supply bay cooling
High power capacity Determines the current power limit.
P S
OWER UBSYSTEM
Description
Provides evenly distributed power
consumption among all installed power
supplies. Enterprise Switch activity is
not disrupted if a power supply fails
because there is no changeover (and
hence, no changeover interval).
Provides easy access for upgrades. As
your power needs increase over time, it
is easy to upgrade by adding a power
supply into the front of the 8-slot
chassis and 16-slot chassis, and into the
rear of the 7-slot chassis.
Cools the power supply bay. Vent holes
and fan trays reduce the possibility that
an overheat condition in the power
supply bay may cause or contribute to a
failure of the chassis or its modules.
This feature works with other Switch
features to maintain normal chassis
internal operating temperature.
The power mode and the amount of
power available determine the current
power limit. The actual power that is
delivered depends on whether you are
running in non-fault-tolerant mode or
in fault-tolerant mode.
Table 14 Intelligent Power Subsystem Features (continued)
Feature
Controller
module-based,
software-driven,

power management

Power Management
The Enterprise Management Engine (EME) works with
the Enterprise Management Controller (EMC) to
protect network integrity using power management.
The EME determines how much power a
CoreBuilder 9000 module requires before it permits
the module to power on.
The EME manages power use in the chassis by:
Preventing newly installed modules from receiving
power when there is not enough power available.
Allowing you to prioritize the order in which
modules power off (if there is insufficient power
available).
Description
Confirms that there is enough power
for a new CoreBuilder ® 9000 module.
Software-driven power management
(Intelligent Power Management) also
provides protection against the
possibility of a catastrophic power
failure. If the Switch is operating in
power fault-tolerant mode and a
power supply fails, an installed EME
powers off selected (low power class)
CoreBuilder 9000 modules until the
power deficit is corrected. Intelligent
Power Management ensures that key
components and resources continue to
operate, even under extreme failure
conditions.