Does the S7700&S9700 support hot backup

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The S7700&S9700 supports hot backup. When the master main control board fails, the S7700&S9700 automatically switches services to the slave board without interrupting the services. The software versions of the master board and slave board must be the same.
You can also run the slave switchover command to trigger the active/standby switchover manually.
[HUAWEI] slave switchover
Caution!!! Confirm switch slave to master[Y/N]?y
Ensure that data on the master board is backed up to the slave board before you trigger the master/slave switchover. That is, the slave board is in the real-time backup state. If the board is backing up data, you cannot perform switchover. In this case, you can run the display switch state command to view the status of the slave board.
display switch state
Master MPU: Realtime and routine backup.
Slave MPU: Receiving realtime and routine data.

Other related questions:
Are the power modules of the S7700&S9700 hot swappable
Power modules of the S7700&S9700 are hot swappable. Before removing a power module, ensure that the chassis can work normally without the power module. When removing or installing a power module, take electrical protective measures to avoid electric shock.

Does the S7700&S9700 support non-Huawei optical modules
Use optical modules certified for Huawei switches. Non-certified optical modules cannot ensure transmission reliability and may affect service stability on the switch. Huawei is not responsible for any problem caused by non-certified optical modules and will not fix such problems.

Does the S7700&S9700 support the adjustment of fan speed
The S7700&S9700 series switches support the adjustment of fan speed. The speed of operating fans can be automatically adjusted based on the temperature inside the chassis. In addition, you can also manually change the fan speed using the set fan-speed command. You can run the display fan command to check the status of fans.

How is the S7700&S9700 grounded
The chassis of an S7712 or S7706 has a ground screw on the lower right part of the front, and the chassis of an S7703 has a ground screw on the lower left part of the rear. The chassis of an S9712, S9706, or S9703 has a ground screw on the lower left part of the rear. Ensure correct grounding to guarantee the normal operation of the S7700&S9700.

Does the S12700 support hot backup
The S12700 supports hot backup. When the master main control board fails, the S12700 automatically switches services to the slave board without interrupting the services. The software versions of the master board and slave board must be the same. You can also run the slave switchover command to trigger the active/standby switchover manually. [HUAWEI] slave switchover Caution!!! Confirm switch slave to master[Y/N]?yEnsure that data on the master board is backed up to the slave board before you trigger the master/slave switchover. That is, the slave board is in the real-time backup state. If the board is backing up data, you cannot perform switchover. In this case, you can run the display switch state command to view the status of the slave board. display switch state Master MPU: Realtime and routine backup. Slave MPU: Receiving realtime and routine data.

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