read recovery的意思|示意

The initialization of the split mirror as snapshot performs a crash recovery, rolls back all uncommitted transactions, and makes the database available for any read or write operation.

将分割镜像初始化为快照时，将执行崩溃恢复，回滚所有未提交的事务，并使数据库可以被所有读或写操作访问。

Most optimizations, checkpoint processing (aggregating intermediate results so that recovery actions never need to read the entire log), and "fringe cases" are beyond our scope.

大多数的最优化技术，检查点处理(聚集中间结果以便不需要读整个日志就可以恢复动作)和“边缘案例”超出了我们的范围。

DB2 HADR (High availability Disaster Recovery) configurations can provide both resiliency of availability and some load balancing through use of the secondary mode as a read-only database.

通过使用备用模式(secondary mode)作为只读数据库，DB 2 HADR(高可用性灾难恢复)配置可以同时提供具有弹性的可用性和一些负载均衡。