If the last backup was a full backup image, it and the delta provide the most complete backup.
如果最后的备份是一个完整的备份映像，那么它和增量备份将提供最完整的备份。
As always, keep backups of all the files you change and have at least one system backup image in case the worst happens.
永远记住要备份您所修改过的所有文件，为了防止最坏的情况发生，您还需要有至少一个系统备份的映像。
Finally, online backup images of databases and table Spaces will include the set of log files necessary to restore and recover the backup image to a consistent point in time.
最后，数据库和表空间的在线备份镜像将包括一组日志文件，在将备份镜像恢复到某个一致的时间点时，这些文件是必需的。
The DB2 restore command invokes the DB2 agent contained in the database backup image, and the DB2 agent decrypts it by communicating with the security server.
DB 2恢复命令调用DB2包含在数据库备份映像中的代理，然后DB 2代理通过与安全服务器通信对其进行解密。
Figure 3 shows how recovery requires a full backup image, the last incremental backup, all delta backups since the last incremental backup, and the logs.
图3显示了恢复如何使用完整的备份映像、最后的增量备份、上一次增量备份之后的所有增量备份和日志。
When an external module is specified, it is used instead of the module contained in the database backup image.
当指定外部模块之后，它将代替包含在数据库备份映像中的模块被使用。
By doing so, a database backup image encrypted by one DB agent and managed by one security server, can be restored to another DB agent managed by another security server.
在导入之后，由一个DB代理加密并由一个安全服务器管理的数据库备份映像可以恢复到由另一个安全服务器管理的另一个db代理。
This is the building block of any recovery strategy, without a full backup image, you can't start to restore.
这是任何恢复策略的构建块，如果没有完整的备份映像，就不能开始恢复过程。
The history stored in the backup image can be individually restored and it contains all backups and restores information.
备份映像中存储的历史可以单独恢复，它包含所有备份和恢复信息。
This enables you to use the DB2 agent module with a backup, which enables you to encrypt a database backup image by communicating with the security server.
这使您能够结合使用DB 2代理模块和备份，从而实现通过与安全服务器通信加密数据库备份映像。
DB2 starts at the last backup image that contains complete copies of all table Spaces you are restoring, and then applies subsequent incremental images.
DB 2从最后一个包含需要恢复的所有表空间的完整副本的备份映像开始，然后应用随后的渐进映射。
If using online backup, recognize that the backup image will be useless without the logs of all transactions that occurred while DB2 was backing up the database.
如果使用在线备份，要知道除非具有在DB 2备份数据库时发生的所有事务的日志，否则备份映像没有任何作用。
In its original form, it was a DOS utility that provided multiple installations from a single backup image.
它的最初形式是DOS实用程序，可以从单个备份映象提供多个安装。
Note that you can restore either a full backup manually, apply the Saturday incremental backup image and roll forward.
注意，您可以手动恢复完全备份，应用星期六的增量备份映像并进行前滚。
That is, you can restore a backup image from a lower DB2 version into a higher version, but not the opposite.
可以将来自较低版本的DB2的备份镜像恢复到较高版本的DB2，但是反之则不行。
Therefore, the restore will be according to the backup timestamp to ensure the latest backup image is restored in order to minimize the loss of data.
因此，恢复要基于备份时间戳以确保能够恢复最后的备份映像，这样，就可以最小化数据丢失。
A symmetric key is dynamically created and used for encrypting a database backup image.
为数据库备份映像加密时，将动态创建并应用一个对称密匙。
If a delta is preceded by one or more deltas, you need all deltas until you reach an incremental backup or a full backup image.
如果一个增量备份之前执行了一个或多个其他增量备份，那么您需要在执行增量备份或完整备份映像之后执行的所有增量备份。
The database backup image contains the DB2 agent module and information required for decrypting it.
数据库备份映像包含用于解密的DB2代理模块和信息。
Instead, the changes between each backup image are captured in the DB2 logs.
相反，每个备份映像之间的更改被DB 2日志捕获。
If a delta is preceded by an incremental backup image, you need the delta, the incremental backup, and the full backup image on which the incremental is based.
如果在增量备份之前执行了增量备份，则需要增量备份、增量备份以及增量备份所依赖的完整备份映像。
By default, the transaction log will be copied back to the same location that it was in, when the backup image was taken.
默认情况下，事务日志将被复制回当初备份时所在位置。
Restore log file option restores the log files saved in the backup image (more applicable for online backup and restore).
恢复日志文件选项恢复备份映像中保存的日志文件(适用于在线备份和恢复)。
There are three options for the location of the backup image: DVD, NFS mounted directory, or FTP.
备份镜像的位置可以有三种选择：DVD、NFS装入的目录、或FTP。
An incremental backup grabs all changes since the last full backup image (sometimes called a level 1 backup).
增量备份捕捉自上一次完全备份以来的所有变化(有时候也称1级备份)。
These two pieces (the backup image and the logs representing all work since the backup) are the fundamental building blocks of a DB2 disaster recovery plan.
这两个部分(备份映像和反映备份之后的所有更改的日志)是DB 2灾难恢复计划的基础构建块。
If you needed to restore on Monday, you would restore with the Sunday night backup image, and apply all available logs.
如果您需要恢复到Monday，则需要使用Sunday夜间备份映像进行恢复，并应用所有可用的日志。
Listing 5: Cloning the salesdb database using backup image.
清单5：使用备份镜像克隆salesdb数据库。
Listing 5: Cloning the salesdb database using backup image.
清单5：使用备份镜像克隆salesdb数据库。
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