Roll-forward recovery的意思|示意

This process reads log files during rollback, restart recovery and roll forward.

此进程在回滚、重启恢复和前滚期间读取日志文件。

To do a roll forward recovery in DB2 UDB, archive logging must be used.

要在DB 2 UD b中执行前滚恢复，必须使用归档日志记录。

For delta backup and restore, in the same scenario, you will restore each day's delta backup image (Monday through Saturday) and roll forward to complete the recovery.

对于相同场景中的delta备份和恢复，您将恢复每天的delta备份映像(星期一到星期六)，并执行前滚操作来完成恢复。

An incomplete recovery is a recovery that involves rolling forward the redo logs to bring the database to timestamp as far as the roll forward allows you with some lost of data.

不完全恢复是这样的一种恢复，该恢复包括前滚重做日志，以便数据库恢复到某个时间戳，该前滚操作允许您丢失一些数据。

This strategy should not be a choice in an on-line transaction processing (OLTP) environment since roll-forward recovery is not possible. Figure 1 below illustrates circular logging.

该策略不应该用在线事务处理(on - line transaction processing, OLTP)环境，因为它不可能进行前滚恢复。

Either one of the two parameters is sufficient to allow the roll-forward recovery method.

这两个参数中的任何一个都足以允许前滚恢复方法。