H3C Technologies H3C S12500 Series Switches - Manual (Page 68)

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MANUFACTURING_DATE : 2010-01-20
VENDOR_NAME : H3C
• In IRF mode:
# Display the electrical label information about power monitoring module 2 on member switch 1.
<Sysname> display device manuinfo chassis 1 power-monitor 2
Chassis 1:
Power Monitor unit 2:
DEVICE_NAME : PMU2
DEVICE_SERIAL_NUMBER : 210235A36L1234567891
MAC_ADDRESS : NONE
MANUFACTURING_DATE : 2010-01-20
VENDOR_NAME : H3C
Enabling power supply management
If power supply management is not enabled when you add a new card by inserting it into the slot or
starting power supply to the card by using the power-supply command, the system directly powers on the
card, and the power supply might become unstable or the system might restart because of overloading.
If power supply management is enabled when you add a new card by inserting it into the slot or starting
power supply to the card by using the power-supply command, the system compares the maximum
power consumption of the card against the available power (including the redundant power supply). If
the former is not greater than the latter, the system supplies power to the card, otherwise, the system does
not supply power to the card.
To enable power supply management:
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.
Configuring the number of redundant power modules
Redundant power modules are reserved for power supply backup and power supply threshold alarming.
With multiple redundant power modules configured in the system, if a power supply fails or the system
power supply is overloaded, the system automatically enables a redundant power module. As a result,
the number of redundant power modules decreases by one.
If power supply management is disabled, the system does not reserve any redundant power module. In
this case, you can also use the power-supply policy redundant command to configure the number of
redundant power modules, and this configuration will take effect after power supply management is
enabled.
To configure the number of redundant power modules: