将长期存储从磁带移动到 Azure 云Move your long-term storage from tape to the Azure cloud

Azure 备份和 System Center Data Protection Manager 客户可以:Azure Backup and System Center Data Protection Manager customers can:

  • 按照最适合组织需求的计划备份数据Back up data in schedules which best suit the organizational needs.
  • 长期保留备份数据。Retain the backup data for longer periods.
  • 使用 Azure(而不是磁带)解决其长期保留数据的需求。Make Azure a part of their long-term retention needs (instead of tape).

本文介绍客户如何启用备份和保留策略。This article explains how customers can enable backup and retention policies. 使用磁带解决长期数据保留需求的客户现在可以使用一种强大而可行并且同样提供此功能的替代解决方案。Customers who use tapes to address their long-term-retention needs now have a powerful and viable alternative with the availability of this feature. 最新版本的 Azure 备份(可从此处获取)中已启用该功能。The feature is enabled in the latest release of the Azure Backup (which is available here). System Center DPM 客户必须在使用具有 Azure 备份服务的 DPM 之前至少更新到 DPM 2012 R2 UR5。System Center DPM customers must update to, at least, DPM 2012 R2 UR5 before using DPM with the Azure Backup service.

什么是备份计划?What is the Backup Schedule?

备份计划指示备份操作的频率。The backup schedule indicates the frequency of the backup operation. 例如,下面屏幕中的设置表示要在每天下午 6 点和午夜执行备份。For example, the settings in the following screen indicate that backups are taken daily at 6pm and at midnight.

每日计划

客户还可以安排每周备份。Customers can also schedule a weekly backup. 例如,以下屏幕中的设置表示要在每个星期日和星期三的上午 9:30 和 1:00 创建备份。For example, the settings in the following screen indicate that backups are taken every alternate Sunday & Wednesday at 9:30AM and 1:00AM.

每周计划

什么是保留策略?What is the Retention Policy?

保留策略指定备份必须存储的时间长短。The retention policy specifies the duration for which the backup must be stored. 客户可以根据备份的创建时间指定不同的保留策略,而不只是为所有备份点指定一个“通用的策略”。Rather than just specifying a "flat policy" for all backup points, customers can specify different retention policies based on when the backup is taken. 例如,每天创建的备份点(用作操作恢复点)可以保留 90 天。For example, the backup point taken daily, which serves as an operational recovery point, is preserved for 90 days. 在每个季度结束时针对审核用途创建的备份点可以保留更长时间。The backup point taken at the end of each quarter for audit purposes is preserved for a longer duration.

保留策略

此策略中指定的“保留点”总数为 90(每日点数)+ 40(10 年内每个季度为一点)= 130。The total number of "retention points" specified in this policy is 90 (daily points) + 40 (one each quarter for 10 years) = 130.

示例 - 组合策略Example - Putting both together

示例屏幕

  1. 每日保留策略:每日创建的备份存储 7 天。Daily retention policy: Backups taken daily are stored for seven days.
  2. 每周保留策略:午夜和星期六下午 6 点创建的备份保留 4 周。Weekly retention policy: Backups taken at midnight and 6 PM Saturday are preserved for four weeks.
  3. 每月保留策略:每个月最后一个星期六午夜和下午 6 点创建的备份保留 12 个月。Monthly retention policy: Backups taken at midnight and 6 PM on the last Saturday of each month are preserved for 12 months.
  4. 每年保留策略:每年三月最后一个星期六午夜创建的备份保留 10 年。Yearly retention policy: Backups taken at midnight on the last Saturday of every March are preserved for 10 years.

上图中“保留点”总数(客户可从中还原数据的恢复点)计算方法如下:The total number of "retention points" (points from which a customer can restore data) in the preceding diagram is computed as follows:

  • 每天 2 个点 x 7 天 = 14 个恢复点two points per day for seven days = 14 recovery points
  • 每周 2 个点 x 4 周 = 8 个恢复点two points per week for four weeks = 8 recovery points
  • 每月 2 个点 x 12 个月 = 24 个恢复点two points per month for 12 months = 24 recovery points
  • 每年 1 个点 x 10 年 = 10 个恢复点one point per year per 10 years = 10 recovery points

恢复点总数为 56。The total number of recovery points is 56.

备注

使用 Azure 备份,最多可为每个受保护的实例创建 9999 个恢复点。Using Azure Backup you can create up to 9999 recovery points per protected instance. 受保护的实例包括计算机、服务器(物理或虚拟)或备份到 Azure 的工作负载。A protected instance is a computer, server (physical or virtual), or workload that backs up to Azure.

高级配置Advanced configuration

通过选择上述屏幕中的“修改”,客户可以进一步灵活指定保留计划。By selecting Modify in the preceding screen, customers have further flexibility in specifying retention schedules.

修改策略窗口

后续步骤Next steps

关于 Azure 备份的详细信息,请参阅:For more information about Azure Backup, see: