部分差异备份，基于部分备份。
可以从完全或部分备份中还原单独的文件或者目录树。
Single files and directory subtrees may be restored from full or partial backups.
图2展示了DB 2中提供的不同类型的部分备份方式。
Figure 2 illustrates the different kinds of partial backups available in db2.
单独的文件和目录子树也可以从全部或部分备份中恢复。
Single files and directory subtrees may also be restored from full or partial backups.
这样，您可以通过为数不多的几个部分差异备份来补充部分备份。
This let you supplement a partial backup with a short series of differential partial backups.
差异化部分备份——差异化部分备份仅记录自上一次部分备份以来文件组中发生更改的数据区。
Differential partial backup — This backup only records data that has changed in the filegroups since the preceding partial backup.
请注意这两个部分是如何依赖于无线电遥控元件的超可靠的备份技术的。
Note how both these parts rely on R/C components as the ultra-reliable backup technology.
我们可以凭借它实现完整的备份与兼容性，而这是真正的数据管理策略的重要组成部分。
It will allow the full range of backup and forensics and compliance behaviors that form part of a real data management strategy.
下载部分中的两个脚本代表了这两个备份。
The backups are represented in the two scripts in the Downloads section.
DB2有一个非常高效的备份实用程序，它可以将从数据库读出的数据页分成多个部分，并以随机的顺序将它们写到目标设备。
DB2 has a very efficient and optimized backup utility that multiplexes the data pages it reads from the database and writes them to the target device in a randomized order.
下载部分提供了到示例脚本的链接，其中包含了本文所提到的，用于文件、环境、及配置设计备份的命令。
The Downloads section provides links to example scripts that contain the commands needed to back up the files, environment, and configuration Settings as recommended in this article.
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.
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.
他想把电脑中的部分内容拷贝到单独的一个备份盘上。
软件的安装很简单，用户们还可以选择备份整个或是部分硬盘。
It requires a simple installation, and users choose to back up their entire hard drive or just parts of it.
业务数据不可用可能给业务带来巨大的风险，因此数据备份是任何业务连续性或灾难恢复计划的基本部分。
Non-availability of business data may pose a high risk to any business and hence, data backup is an essential component in any business continuity or disaster-recovery plans.
系统备份是备份中的一个重要部分，但往往被忽略。
System backup is an essential part of a backup and is usually forgotten.
备份文件是指利用下载部分所提供的示例备份脚本，所创建的文件。
The backup files referred to are the ones that you create using the sample backup scripts provided in the Downloads section.
页面的上半部分现在有一个饼图，显示逻辑日志的已用空间、空闲空间和已备份空间使用量。
The upper half of the page now has the pie chart, breaking it up to illustrate the usage of logical log as used space, free space and backed up space.
AdvancedCopyServices (acs)使您能够利用受支持的存储设备的快速复制技术，该技术可用于执行备份和恢复操作的数据复制部分。
DB2 Advanced copy Services (ACS) enables you to leverage the fast copying technology of supported storage devices to perform the data copying part of backup and restore operations.
美国空军正在设计的系统，则能在卫星的5个部分，同时执行一模一样的“备份”运算。
Systems being designed by the us Air Force simultaneously perform identical "backup" calculations in five parts of the satellite.
查看任务助理的Messages部分，检查是否成功地备份了数据库；如果有任何错误，那么解决问题，然后再次运行命令。
Look in the Messages section of the task assistant to see if the backup succeeded or if there are any errors you need to address before trying to run the command again.
Mozy还可以检测文件变化而进行备份，只备份变化后的部分而非整个文件(这意味着更快的处理速度)。
Mozy also backs up based on file changes, only uploading the portion of a file that has changed and not the entire file all over again (meaning quicker incremental backups after the initial backup).
本部分中的4个表中的每个表，描述了所需备份的4类文件及配置设置中的一个。
Each of the four tables in this section describes one of the four categories of files and configuration Settings that you need to back up.
大多数情况下，数据库系统本身将提供一种或多种备份与恢复机制，作为产品的组成部分。
In most cases, the database system itself will provide one or more backup and restore mechanisms as part of the product.
在数据库文件的任何部分出现媒介失败的情况下，只需恢复所有数据库文件就可以实现备份，当然，备份之后所做的所有更改是不可恢复的。
In case of media failure to any part of the database files, simply restore all the database files, and of course all the changes made after the backup are irrecoverable.
拥有关键配置信息的可靠备份是任何负责任的管理计划的组成部分。
Having a reliable backup of critical configuration information and data is part of any responsible administration plan.
构建服务器甚至可能不被备份，因为它们可能不是支持业务过程的IT基础架构的一部分。
Build servers might not even be backed-up because they may not be part of the IT infrastructure that is supporting the business processes.
把本地文件备份到网络服务器，或者在网络上工作并允许IT部分处理事情。
Back up local files to the network server or work on the network and allow the IT department to handle things.
博客文章被备份为标准文件系统的一部分，而不需要数据库转储或检查点。
Blog posts are backed up as part of the standard file system rather than requiring database dumps or checkpoints.
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