To prevent a single point of failure for offline archive logs such as media failure, log mirroring shouldl be used.
要防止脱机归档日志的单点故障,比如媒介失败,则应该使用日志镜像。
Offline archive logs - archive logs that are being moved from active log directory to either another directory in another media or tape.
脱机归档日志——如果将联机归档日志从活动日志所在目录移动到其他目录或磁带中,就成为了脱机归档日志。
Turning archive logging on requires an offline full database backup.
打开存档日志时需要执行一次离线全数据库备份。
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