要保证企业业务不停顿，高可用性数据库集群是企业在关键应用上必须考虑的重要问题。
To ensure the business of enterprises don't grind to a halt. The database cluster with high availability is a vital problem in the key application of enterprises.
高可用性数据库解决方案能够确保，万一数据库方案中某一部分宕机，可无缝切换到备份系统。
A highly available database solution ensures that, should any integral part of your database solution go down, your system would seamlessly fail over to a backup.
在那种情况下，同样应该实现数据库的高可用性，本系列的下一篇文章将对此进行阐述。
In that case, ha for the database should be implemented as well, which the next article in this series will demonstrate.
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