如果您经常做归档备份，那么eXist的数据就不可能变得不可检索。
If you make frequent archival backups, eXist is unlikely to do anything that makes the data irretrievable.
没有归档、备份、恢复或灾难恢复的过程和机制。
No procedures or mechanisms for archiving, backup, restore, or disaster recovery exist.
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。
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.
结合事务日志的备份和归档优势，事务日志可以让服务器的运行达到前所未有的顺畅。
Coupling this with the backup and archiving benefits of transaction logging, transaction logging makes your server run like it never ran before.
RETAIN意味着日志记录不再是循环的，而是归档的，因此需要在继续设置之前进行一次初始备份。
RETAIN means that the logging is no longer circular but archival, and therefore you need to have an initial backup before you continue.
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。
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.
为了使用联机备份，必须打开归档日志记录。
In order to use online backup, archive logging must be turned on.
管理类由归档和备份副本组组成。
The management classes consist of archive and backup copy groups.
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。
A whole-system backup is a snapshot of the entire system at a single point in time (known as the archive checkpoint).
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。
Let's begin with a simple, yet powerful archive mechanism on our way to a more advanced distributed backup solution.
定期启用事务日志归档模式进行的在线备份，事务日志存储在一个容错磁盘上。
Online backups with transaction log archive mode enabled at regular intervals and the transaction logs are stored on a fault-tolerant disk.
(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。
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.
您可以在数据库上启用归档日志记录模式，并开始联机备份数据库以及备份数据库中的一组表空间。
You can enable archive logging mode on the database and start taking online backups of the database as well as backups of a set of table Spaces in the database.
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。
These copy groups contain the crucial attributes that control the expiration of objects of this type (archive or backup objects).
在使数据库进入备份模式之前，需要使用归档日志。
Before you can put a database in hot backup mode, you need to use the archive log.
要在集群中启用备份、归档和还原功能，可执行以下步骤。
To enable backup, archive, and restore functionality in a cluster, follow these steps.
单击Restore图标还原应用程序的备份或归档的副本。
Click the restore icon to restore a backup or archived copy of the application.
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。
Backup, archive, and restore actions are available for places using the Manage places option as shown in the figure 14.
要了解DB 2UD b联机备份和恢复，就需要了解归档日志记录。
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.
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 7: Perform a backup, enable the transaction log archive mode, and delete 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。
Listing 6: Perform a backup, enable the transaction log archive mode, and preserve archived transaction logs before this backup.
MetaWeblogAPI还简化了系统管理对博客文章的备份和归档，简化了在必要时迁移到其他博客包的过程。
The MetaWeblog API also makes it easy for systems administrators to back up and archive blog entries as well as simplifying migration to other blogging packages, if necessary.
注意，include . encrypt选项是在备份归档客户机上启用加密的惟一途径。
Note that the include.encrypt option is the only way to enable encryption on the backup-archive client.
然而，无论是何种看法，磁带将在云存储、云备份和云归档方面继续发挥着至关重要的作用。
Regardless of perceptions, however, tape continues to play a vital role in cloud storage, cloud backup, and cloud archiving.
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。
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).
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 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).
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。
To switch to an online with auto archive from the default offline backup in Oracle, you need to do the following.
这让后续的归档更容易创建在介质上，如果没有这样做则必须把前面首次备份的尾部隔开。
This facilitates continued archives being created on a piece of media without having to space out to the end of the previous backup first.
为此，在备份时，可以启用日志归档模式。
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。
You can do this by enabling the log archive mode as part of the backup. The system procedure to do that is.
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