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How to change the power supply mode? Reply
How to change the power supply mode?
4341 1 2017-5-3 15:19:46
Is the Power Supply Mode of the N18000, 86E, and 78E Redundancy Power Supply or Load Power Supply? Can Their Power Supply Mode Be Changed?

0 2017-5-3 15:19:53 View all replies
The N18000, 86E, and 78E support two redundancy modes in power supply: non-redundancy mode and N+M redundancy mode. The devices use the non-redundancy power supply mode by default.
Non-redundancy mode: This mode is the default configuration of devices. The total power of the system is the sum of the output powers of all power supplies and each module supplies power according to their actual capability. Assume that a chassis is equipped with four 400 W power supplies. The total system power provided by the power supplies is 1600 W.

N+M redundancy mode: A system has a total of N+M power supplies, M redundant power supplies are configured, and N power supplies are available currently. The total power of the system is the sum of the output power of N power supplies. After power redundancy is configured, the redundant power supplies are used as backup power supplies to prevent power faults and they do not participate in system power distribution. For example, after one redundant power supply is configured, if a power supply of a device malfunctions and cannot supply power, the redundant power supply immediately supplies power and participates in system power distribution. After the faulty power supply is restored, it becomes a redundant power supply, thereby maintaining the system power unchanged.

The number of configured redundant power supplies must be smaller than the number of power supplies that are available currently. redundancy fails. The command for configuring the power redundancy mode is as follows:
[Command] power redundancy [switch devid] pwrs enable
[Parameter Description] switch devid: Specifies the ID of the chassis, to which the card slot for which the redundancy mode is to be configured belongs. It is supported only in VSU mode. The default value is the local chassis ID.
pwrs: Specifies the number of redundant power supplies.
[Configuration Example] Configure 1+2 power redundancy: The N18010 chassis is equipped with three DC 1600 W power supplies. It can work properly as long as one power supply is available. Therefore, the other two power supplies can be configured as redundant power supplies.
Ruijie(config)#power redundancy 2 enable
[Verification] Run the show power command to check whether the power redundancy configuration takes effect and the number of redundant power supplies.
Ruijie#show power
Chassis-type: RG_N18010
Power-redun: yes
Redun-powers: 1
Energy-saving: off

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