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。
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.
部署数据库本身可以使用DB2备份映像来完成，或者数据库可以从数据摘要重新构造成加载文件。
Deploying the database itself can be accomplished using DB2 backup images, or the database can be reconstructed from data extracts into load files.
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。
When an external module is specified, it is used instead of the module contained in the database backup image.
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。
This is the building block of any recovery strategy, without a full backup image, you can't start to restore.
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。
The history stored in the backup image can be individually restored and it contains all backups and restores information.
尝试执行一次恢复，了解所需的时间以及从哪里找到所有相关的部分，比如备份映像和日志。
Practice a restore so you know how long it takes and where to find all relevant pieces such as backup images and logs.
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。
DB2 starts at the last backup image that contains complete copies of all table Spaces you are restoring, and then applies subsequent incremental images.
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。
A symmetric key is dynamically created and used for encrypting a database backup image.
如果采用手工选项，那么需要指定备份映像的位置。
If the manual option is taken, you need to specify the location of the backup images.
当您指定INCREMENTALAUTOMATIC时，DB 2决定是否需要以前的备份映像并尝试自动恢复它们。
When you specify INCREMENTAL automatic, DB2 determines if any previous backup images are required and attempts to restore them automatically.
支持使用从已有备份映像中自动生成的脚本执行重定向恢复操作。
Support for performing redirected restore operations with scripts automatically generated from existing backup images.
表空间或数据库的恢复可以通过恢复备份映像和前滚来完成。
The restore for table Spaces or database can be done by restoring a backup image and rolling forward.
离线策略，用于保护数据库备份映像。
An offline policy is used for protecting database backup images.
数据库备份映像包含用于解密的DB2代理模块和信息。
The database backup image contains the DB2 agent module and information required for decrypting it.
相反，每个备份映像之间的更改被DB 2日志捕获。
Instead, the changes between each backup image are captured in the DB2 logs.
在数据库恢复操作期间，使用以前的备份映像恢复整个数据库(不是部分数据库)。
During database restore operation, the entire database (not partial) will be restored using the images backup earlier.
可以根据备份时间戳恢复特定的映像。
Specific images can be restored according to its backup timestamp.
接下来，必须选择在其中写入或从其中恢复备份映像的映像目录，如图1 所示。
Next, you have to select the image directory where the backup image writes to or restores from, as shown in Figure 1.
尽管这并非强制性的，还是建议您将备份映像恢复到单独的计算机上，并执行一些完整性测试来确认备份映像的完整性。
Although this is not mandatory, it is advisable to restore the backup images onto a separate machine and carry out few sanity tests to verify the sanctity of the backup images.
这些索引还占用表空间容器和备份映像中的存储空间，您可以通过删除这些索引来更好地利用它们所占用的空间。
Such indexes also require storage space, within tablespace containers as well as within backup images, that you might better use for other purposes.
离线策略控制备份和恢复命令，以及数据库备份映像的加密和解密。
The offline policy controls backup and restore commands, and the encryption and decryption of database backup images.
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。
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。
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.
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。
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.
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。
Note that you can restore either a full backup manually, apply the Saturday incremental backup image and roll forward.
数据库备份压缩(V8 FP4)：通过压缩产生较小的备份映像。
Database backup Compression (V8 FP4) : Compression to result in smaller backup images.
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。
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.
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)。
Restore log file option restores the log files saved in the backup image (more applicable for online backup and restore).
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。
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。
If you needed to restore on Monday, you would restore with the Sunday night backup image, and apply all available logs.
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