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If power supply management is disabled, the system does not reserve any redundant power supply. In
this case, you can also use the
power-supply policy redundant
command to configure the number of
redundant power supplies, and this configuration will take effect after power supply management is
enabled.
To configure the number of redundant power supplies:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enable power supply
management.
•
In standalone mode:
power-supply policy enable
•
In IRF mode:
power-supply policy enable chassis
chassis-number
By default, power supply
management is enabled.
3.
Configure the
number of redundant
power supplies.
•
In standalone mode:
power-supply policy redundant
module-count
•
In IRF mode:
power-supply policy chassis
chassis-number
redundant
module-count
By default, the number of
redundant power supplies
depends on the reserved power,
which you can display with the
display power-supply
command.
Manually starting or stopping power supply to a card
When the switch is operating, you can start or stop power supply to a card to adjust the system available
power as needed.
Configuration guidelines
Before starting power supply to a card, confirm whether the power supply is overloaded after supplying
power to the new card. If the maximum power consumption of the system is greater than the available
power after supplying power to the new card, the system performs one of the following options:
•
With power supply management enabled, the system does not supply power to this card because
of the self protection mechanism.
•
With power supply management disabled, the system becomes unstable or the switch reboots
because of power supply overload.
For more information about power supply management, see "
Enabling power supply management
Configuration procedure
To start or stop power supply to a card, execute one of the following commands as needed in user view:
Task Command
Remarks
Start or stop power supply to
the specified card.
•
In standalone mode:
power-supply
{
on | off
}
slot
slot-number
•
In IRF mode:
power-supply
{
on | off
}
chassis
chassis-number
slot
slot-number
The specified card cannot be an
MPU or a switching fabric
module.
