REPLICATION CONTROL AMONG REDUNDANT DATA CENTERS

Systems, methods, and software for management of redundant data storage centers are provided herein. An exemplary method includes redundantly storing data records across the redundant data storage centers, with a first data storage center operating as a primary data storage center configured to respond to at least user input related to the data records. The method includes placing the first data storage center into an intermediate mode which comprises ceasing response to the user input by the first data storage center and executing pending operations related to previous user input received bythe first data storage center, and designating the second data storage center as the primary data storage center configured to respond to at least further user input related to the data records. 这里提供了用于管理冗余数据存储中心的系统、方法和软件。种示例性方法包括跨冗余数据存储中心冗余地存储数据记录，其中第数据存储中心用作主要数据存储中心，被配置为至少响应与数据记录相关的用户输入。该方法包括将第数据存储中心置于中间模式，该中间模式包括停止第数据存储中心对用户输入的响应并且执行与第数据存储中心接收到的先前用户输入相关的未决操作，并指定第二数据存储中心作为主要数据存储中心，被配置为至少响应与数据记录相关的另外的用户输入。