If no stable state backup exists, and the current configuration is not completely broken, it is best to take a backup now.
如果不存在稳定状态备份，且当前配置并未被完全破坏，则最好现在就执行备份。
You should also take notes on your current configuration and prepare a backup of your data.
您也应该记录当前的配置并进行数据备份。
You should also take notes on your current configuration and prepare a backup of your data.
您也应该记录当前的配置并进行数据备份。
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