Archive logging enables an online backup and recovery.
存档日志模式支持在线备份和恢复。
And also that any past history of the warehouse processing activity can be recovered; backup files should contain the data that has been deleted from the archive table.
而且要能够对过去仓库处理活动的任何历史加以恢复；备份文件应该包含从档案表中删除的数据。
The main difference between them is that backup objects can be in an active or inactive state, while archive objects don't have this distinction.
二者之间的主要不同是备份对象可以处于活动或非活动状态，而归档对象则没有这种区分。
A whole-system backup is a snapshot of the entire system at a single point in time (known as the archive checkpoint).
全系统备份是某一指定时间点(即归档检查点)上整个系统的快照。
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。
For online backup (using archive logging), the threshold of the log space used is triggered.
对于在线备份(使用存档日志)，达到使用的日志空间的阈值。
Let's begin with a simple, yet powerful archive mechanism on our way to a more advanced distributed backup solution.
在学习更加先进的分布式备份解决方案之前，我们先看一个简单但功能强大的归档机制。
These backup objects are bound to a specific management class and are stored according to the attributes of the underlying backup copy group (see Archive and backup copy groups).
这些备份对象被绑定到特定管理类，而这些对象的存储则是根据基础备份副本组(请参阅归档和备份副本组)的属性进行的。
These copy groups contain the crucial attributes that control the expiration of objects of this type (archive or backup objects).
这些副本组包含一些至关重要的属性，这些属性控制着某种类型的对象(归档或备份对象)的到期时间。
And of course, if you don't implement a backup strategy, you won't have an archive of past data — if someone in your office deletes a bunch of important files, you won't be able to recover them.
毫无疑问，如果您没有实施备份策略，就不会拥有历史数据的档案文件—如果某位同事删除了一批重要文件，您也无法将它们恢复。
It is highly recommended that you archive any transaction logs so that changes that occurred after the last backup can be replayed for the most complete restoration of data.
(可选)强烈建议归档所有事务日志，以便重现上次备份后发生的变更，从而执行最完整的数据恢复。
Even if you don't use the archive as a backup, you can use it to build other LFS systems more quickly in future.
即使你没有使用存档备份，将来你也可以使用它迅速地搭建另外的LFS系统。
Before you can put a database in hot backup mode, you need to use the archive log.
在使数据库进入备份模式之前，需要使用归档日志。
Backup, archive, and restore actions are available for places using the Manage places option as shown in the figure 14.
备份、归档和还原操作对于使用ManagePlaces选项的位置可用，如图14所示。
To enable backup, archive, and restore functionality in a cluster, follow these steps.
要在集群中启用备份、归档和还原功能，可执行以下步骤。
To switch to an online with auto archive from the default offline backup in Oracle, you need to do the following.
在Oracle中，要从默认的脱机备份切换到具有自动归档的联机备份，您需要执行下面的操作。
Listing 7: Perform a backup, enable the transaction log archive mode, and delete archived transaction logs before this backup.
清单7：执行备份，启用事务日志归档模式，并删除这次备份之前归档的事务日志。
Listing 6: Perform a backup, enable the transaction log archive mode, and preserve archived transaction logs before this backup.
清单6：执行备份，启用事务日志归档模式，并保存这次备份之前归档的事务日志。
To understand the DB2 UDB online backup and recovery, you need to understand archive logging. There are three definitions of logs that we need to familiar with.
要了解DB 2UD b联机备份和恢复，就需要了解归档日志记录。
You can do this by enabling the log archive mode as part of the backup. The system procedure to do that is.
为此，在备份时，可以启用日志归档模式。
The other Informix backup utility is called onbar (Online backup Archive).
其他Informix备份实用程序被称为onbar (OnlineBackup Archive)。
If you choose to have archive logging, and do an online backup and roll forward recovery, you can recover to a point in time or to the end of the logs for the minimum loss of data.
如果您选择使用归档日志记录，并执行联机备份和前滚恢复，那么您可以恢复到数据丢失最少的那个时间点，或者恢复到结束日志的时候。
The management classes consist of archive and backup copy groups.
管理类由归档和备份副本组组成。
Backup objects for which there is no matching entry found are bound to the default management class in the active policy set (see Archive and Backup Copy Groups).
没有发现匹配条目的备份对象被绑定到活动策略集(请参阅归档和备份副本组)中的默认管理类。
The methods of data backup for840D system is summarized and introduced in detail. The methods focus on howto backup through the two methods of Series Startup Archive and Area-Specific Archive.
对西门子840D数控系统的数据管理与备份方法进行了总结，系统地介绍了西门子840D数控系统中数据管理的类型及系列备份和分区备份两种常用的数据备份方法。
The methods of data backup for840D system is summarized and introduced in detail. The methods focus on howto backup through the two methods of Series Startup Archive and Area-Specific Archive.
对西门子840D数控系统的数据管理与备份方法进行了总结，系统地介绍了西门子840D数控系统中数据管理的类型及系列备份和分区备份两种常用的数据备份方法。
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