The key features of large database systems are consistency, high availability, and scalability.
大型数据库系统的主要特征是一致性、高可用性和可伸缩性。
As we briefly mentioned above, ensuring the high availability and scalability of a relational database platform can be done through a number of known and proven techniques.
我们在上文已简要提到，可以通过许多已知和经证实的技术来实现关系数据库平台的高可用性和伸缩性。
Providing high availability for database servers involves making the hardware itself more highly available, rather than providing additional redundant hardware.
为数据库服务器提供高可用性包括使硬件本身具有更高的可用性，而不是提供额外的冗余硬件。
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