H3C Technologies H3C S12500 Series Switches - Manual (Page 69)

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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 modules.
• 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 modules
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:
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
Available in user view.
The specified card cannot be an
MPU or a switching fabric
module.
NOTE:
To avoid IRF split, the system does
not power off an LPU that contains
all active physical IRF ports of a
member device.