The slave switchover command enables a forcible master/slave main control board switchover, the slave switchover command applies only to cluster scenarios, not modular devices.
Usage Scenario
To improve device reliability, a pair of master and slave boards can be installed to work in 1+1 redundancy mode. If the master board fails, the device automatically performs a master/slave board switchover. If the master board works abnormally, for example high CPU usage and a master/slave board switchover is not automatically performed, run the slave switchover command to manually perform a master/slave board switchover.
Prerequisites
The forcible master/slave board switchover function has been enabled using the slave switchover enable command.
Configuration Impact
After the slave switchover command is run, the original master board resets and becomes a new slave board, and the original slave board becomes a new master board.
Follow-up Procedure
After the slave switchover command is run, the display switchover state command can be run to display the master/slave board status. The information helps verify that the master/slave board switchover is successfully performed.
Precautions
In VS mode, this command is supported only by the admin VS.
<HUAWEI> system-view [~HUAWEI] slave switchover enable [*HUAWEI] slave switchover Warning: Configuration is not Committed.After a switchover,the configuration not submitted will be lost. Warning: This operation will switch the slave board to the master board. Continue? [Y/N]: