第一个问题是关于维护窗口的创建。
维护窗口通常由起始时间和持续时间组成。
Maintenance Windows typically consist of a start time and duration.
将策略和维护窗口指定为简单的XML文档。
Both the policies and maintenance Windows are specified as simple XML documents.
维护窗口将指定 “何时”执行指定的自动操作。
Maintenance windows specify "when" a given automatic operation is allowed to be performed.
在维护窗口中，数据库实例会在特定时间段内被离线。
The database instance is taken offline for certain period of time within the maintenance window.
这个维护窗口可以被用来为应用软件打补丁和数据备份。
The maintenance window is used for application software patching, as well as data backups.
这个服务得益于灵活性，AWS定义了一个每周4小时维护窗口。
The service benefits come at a cost in flexibility. There is a weekly four-hour maintenance window defined by AWS.
维护窗口策略用于指定DB2可以调度并运行自动维护任务的时段。
The maintenance window policy is used to specify a period of time during which DB2 may schedule and run automatic maintenance tasks.
注意：维护窗口并不是自动维护策略，但是可以使用相同的界面进行配置。
Note: The maintenance window is not an automatic maintenance policy, but it is configurable using the same interface.
本文将重点讨论维护策略(控制行为)和维护窗口(定义操作在何时发生)。
This article focuses on the specification of the maintenance policy (which controls the behavior) and the maintenance window (which defines when the operation may take place).
他们必须保证服务24x7可用，即使在每周的维护窗口运行的时候也一样。
They need to guarantee service availability 24x7, even during weekly maintenance windows.
DB 2 9.5提供了以下存储过程，用于更新和检索维护策略和维护窗口。
DB2 9.5 provides the following stored procedures for updating and retrieving automatic maintenance policies and the maintenance Windows.
您创建了零件数据库，并设置了维护窗口，配置了异常状况下的电子邮件联系方式。
You created a parts database. You also set up a maintenance window and configured an E-mail contact in case something goes wrong.
在发布计划中，请确保包含维护窗口、备份、部署时间、搁置时间和测试的相关内容。
In the release schedules, be sure to include maintenance Windows, backups, deployment time, back-out time, and testing.
您可以利用计划任务模块，以不同的时间间隔运行不同的策略，以满足您特定的维护窗口。
You can utilize a scheduling module that runs policies at various intervals in order to conform to your particular maintenance window.
实际上，它们使用一个调度模块，允许按照预定义的时间间隔运行策略，并且遵循维护窗口。
Essentially, they use a scheduling module that allows policies to be run at predefined intervals, which conform to your maintenance window.
如果调整根文件系统的大小，那么只有ext3支持联机调整(这意味着不必安排维护窗口)。
If you resize your root file system, only ext3 is supported for online resizing (which means you don't have to schedule a maintenance window for the system).
在认识到这一操作对apc的影响之后，我们已经进行了分配并通知维护窗口的技术人员。
After recognizing the affect of this operation on the APC, we have assigned and informed the technician of the maintenance window.
若计划在一个生产环境内运行此例程，可以考虑在维护窗口期间或是当系统处于轻负载的情况下运行它。
If you are planning to run this routine in a production environment, consider running it during a maintenance window or when the system is under a light load.
在线维护窗口是24x7全天候的(即每周7天，每天24小时；可以在任何时间调度在线维护任务)。
Online maintenance window that is 24x7 (that is all hours of all days of the week; online maintenance tasks can be scheduled any time).
可以对移动过程进行协调，以使得它对数据源产生最小的影响，例如在维护窗口中使得对操作型源系统的影响最小化。
The movement process can be coordinated so that it has minimal impact to the sources, for example during maintenance Windows to minimize the impact to operational source systems.
在接下来的一个维护窗口中，您决定只重分发catalog表，因为还有其他具有更高优先级的项目要做。
At the next maintenance window, you decide that you only want to redistribute the CATALOG table, as you have other higher priority items to do. You would likely perform this.
当客户询问性能的时候，他们面临的是日益缩水的批处理窗口，而不得不花越来越多的精力去维护越来越小的维护窗口。
When customers asked for performance, they were faced with shrinking batch windows and had to fit more and more maintenance into smaller and smaller maintenance windows.
通过只收集需要的数据，您可以避免收集无关统计数据，而这些数据会在有限的维护窗口中提高CPU占用，增加不必要的负荷。
By collecting only the needed statistics, you can avoid collecting irrelevant statistics that drive up CPU overhead and create unnecessary workload inside limited maintenance Windows.
注意，更改加密密钥时可能需要一个有效的维护窗口。所有已经被加密的数据需要用旧的密钥进行解密，然后用新的密钥加密。
Note that changing an encryption key may require a significant maintenance window; all existing encrypted data will require decryption with the old key and encryption with the new key.
在Windows服务器上，必需有这种维护窗口，但是在Domino服务器仍然运行的同时，可以将补丁应用到大多数基于Unix的操作系统上。
This maintenance window is necessary on Windows servers, but you can apply patches to most Unix-based operating systems while the Domino server is running.
在交换消息和IMA确认时，MATIP应用程序的发送端将维护一个窗口。
When exchanging messages and IMA acknowledgements, the sending side of a pair of MATIP applications also maintains what is known as a window.
在每月的2小时窗口维护期间，您不希望花时间检查是否遗漏了其他内容。
You don't want to find out something is missing during your two-hour maintenance window of the month.
与在编辑窗口(见图5)中创建并维护大量扩展映射文档不同的是，您可以将它们从csv文件中导入到MetadataWorkbench。
Instead of creating and maintaining many extension mapping documents in the edit window (Figure 5), you can import them from CSV files into the Metadata Workbench.
例如，在某些环境中，不同Exchange服务器的维护时间窗口是不同的。
In some environments, for instance, maintenance time Windows differ between Exchange servers.
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