关于 Site RecoveryAbout Site Recovery

欢迎使用 Azure Site Recovery 服务!Welcome to the Azure Site Recovery service! 本文快速简要地介绍了该服务。This article provides a quick service overview.

组织需采用业务连续性和灾难恢复 (BCDR) 策略,在发生计划内和计划外停机时确保数据的安全以及应用和工作负荷的正常启动和运行。As an organization you need to adopt a business continuity and disaster recovery (BCDR) strategy that keeps your data safe, and your apps and workloads up and running, when planned and unplanned outages occur.

Azure 恢复服务有助于制定 BCDR 策略:Azure Recovery Services contribute to your BCDR strategy:

  • Site Recovery 服务:Site Recovery 有助于保持业务应用和工作负荷在停机期间的正常运行,从而确保业务连续性。Site Recovery service: Site Recovery helps ensure business continuity by keeping business apps and workloads running during outages. Site Recovery 将在物理机和虚拟机 (VM) 上运行的工作负荷从主站点复制到辅助位置。Site Recovery replicates workloads running on physical and virtual machines (VMs) from a primary site to a secondary location. 主站点发生停机时,可以故障转移到辅助位置,从该位置访问应用。When an outage occurs at your primary site, you fail over to secondary location, and access apps from there. 在主位置再次运行后,可以故障回复到该位置。After the primary location is running again, you can fail back to it.
  • 备份服务Azure 备份服务会将数据备份到 Azure,从而确保其安全并使之可以恢复。Backup service: The Azure Backup service keeps your data safe and recoverable by backing it up to Azure.

Site Recovery 可以为以下计算机管理复制:Site Recovery can manage replication for:

  • 在 Azure 区域之间进行复制的 Azure VM。Azure VMs replicating between Azure regions.
  • 本地 VM、 Azure Stack VM 和物理服务器。On-premises VMs, Azure Stack VMs and physical servers.

Site Recovery 的功能是什么?What does Site Recovery provide?

功能Feature 详细信息Details
简单的 BCDR 解决方案Simple BCDR solution 可以在 Azure 门户中使用 Site Recovery,以便设置和管理从单个位置进行的复制、故障转移和故障回复。Using Site Recovery, you can set up and manage replication, failover, and failback from a single location in the Azure portal.
Azure VM 复制Azure VM replication 可以设置 Azure VM 从主要区域到次要区域的灾难恢复。You can set up disaster recovery of Azure VMs from a primary region to a secondary region.
本地 VM 复制On-premises VM replication 可以将本地 VM 和物理服务器复制到 Azure 或辅助性的本地数据中心。You can replicate on-premises VMs and physical servers to Azure, or to a secondary on-premises datacenter. 将数据复制到 Azure 以后,就不需进行复杂的辅助数据中心维护,从而消除相关成本。Replication to Azure eliminates the cost and complexity of maintaining a secondary datacenter.
工作负荷复制Workload replication 复制在支持的 Azure VM、本地 Hyper-V 和 VMware VM 以及 Windows/Linux 物理服务器上运行的任何工作负荷。Replicate any workload running on supported Azure VMs, on-premises Hyper-V and VMware VMs, and Windows/Linux physical servers.
数据复原能力Data resilience Site Recovery 会安排恢复,且不会拦截应用程序数据。Site recovery orchestrates replication without intercepting application data. 复制到 Azure 时,数据存储在 Azure 存储中,具有后者提供的复原能力。When you replicate to Azure, data is stored in Azure storage, with the resilience that provides. 发生故障转移时,会基于复制的数据创建 Azure VM。When failover occurs, Azure VMs are created, based on the replicated data.
RTO 和 RPO 目标RTO and RPO targets 让恢复时间目标 (RTO) 和恢复点目标 (RPO) 始终处于组织限制范围内。Keep recovery time objectives (RTO) and recovery point objectives (RPO) within organizational limits. Site Recovery 为 Azure VM 和 VMware VM 提供持续复制,为 Hyper-V 提供低至 30 秒的复制频率。Site Recovery provides continuous replication for Azure VMs and VMware VMs, and replication frequency as low as 30 seconds for Hyper-V. 可以通过与 Azure 流量管理器集成来进一步降低 RTO。You can reduce RTO further by integrating with Azure Traffic Manager.
让应用在故障转移后保持一致Keep apps consistent over failover 可以通过应用程序一致性快照使用恢复点进行复制。You can replicate using recovery points with application-consistent snapshots. 这些快照可捕获磁盘数据、内存中的所有数据,以及正在处理的所有事务。These snapshots capture disk data, all data in memory, and all transactions in process.
在不中断的情况下测试Testing without disruption 可轻松地运行灾难恢复练习,不会影响正在进行的复制。You can easily run disaster recovery drills, without affecting ongoing replication.
灵活的故障转移Flexible failovers 可针对预期会出现的中断运行计划内故障转移,确保不丢失任何数据;或者针对意外灾难运行计划外故障转移,尽量减少数据丢失(具体取决于复制频率)。You can run planned failovers for expected outages with zero-data loss, or unplanned failovers with minimal data loss (depending on replication frequency) for unexpected disasters. 当主站点重新可用时,可以轻松地故障回复到主站点。You can easily fail back to your primary site when it's available again.
自定义的恢复计划Customized recovery plans 可以通过恢复计划对多个 VM 上运行的多层应用程序的故障转移和恢复进行自定义和排序操作。Using recovery plans, can customize and sequence the failover and recovery of multi-tier applications running on multiple VMs. 可以在恢复计划中将计算机组合到一起,选择性地添加脚本和手动操作。You group machines together in a recovery plan, and optionally add scripts and manual actions. 恢复计划可以与 Azure 自动化 runbook 进行集成。Recovery plans can be integrated with Azure automation runbooks.
BCDR 集成BCDR integration Site Recovery 可与其他 BCDR 技术集成。Site Recovery integrates with other BCDR technologies. 例如,可使用 Site Recovery 保护企业工作负荷的 SQL Server 后端,为 SQL Server AlwaysOn 提供本机支持,进而管理可用性组的故障转移。For example, you can use Site Recovery to protect the SQL Server backend of corporate workloads, with native support for SQL Server AlwaysOn, to manage the failover of availability groups.
Azure 自动化集成Azure automation integration 丰富的 Azure 自动化库提供特定于应用程序的生产就绪型脚本,可下载它们并将其与 Site Recovery 集成。A rich Azure Automation library provides production-ready, application-specific scripts that can be downloaded and integrated with Site Recovery.
网络集成Network integration Site Recovery 和 Azure 集成可简化应用程序网络管理,具体包括:保留 IP 地址、配置负载均衡器并集成 Azure 流量管理器,从而实现高效的网络切换。Site Recovery integrates with Azure for simple application network management, including reserving IP addresses, configuring load-balancers, and integrating Azure Traffic Manager for efficient network switchovers.

可复制哪些内容?What can I replicate?

支持Supported 详细信息Details
复制方案Replication scenarios 将 Azure VM 从一个 Azure 区域复制到另一个 Azure 区域。Replicate Azure VMs from one Azure region to another.

将本地 VMware VM、Hyper-V VM、物理服务器(Windows 和 Linux)、Azure Stack VM 复制到 Azure。Replicate on-premises VMware VMs, Hyper-V VMs, physical servers (Windows and Linux), Azure Stack VMs to Azure.

将本地 VMware VM、System Center VMM 托管的 Hyper-V VM 以及物理服务器复制到辅助站点。Replicate on-premises VMware VMs, Hyper-V VMs managed by System Center VMM, and physical servers to a secondary site.
区域Regions 查看 Site Recovery 支持的区域Review supported regions for Site Recovery.
复制的计算机Replicated machines 查看 Azure VM 复制、本地 VMware VM 和物理服务器以及本地 Hyper-V VM 的复制要求。Review the replication requirements for Azure VM replication, on-premises VMware VMs and physical servers, and on-premises Hyper-V VMs.
工作负荷Workloads 可以在支持复制的计算机上复制运行的任何工作负荷。You can replicate any workload running on a machine that's supported for replication. 另外,Site Recovery 团队已针对多个应用执行了特定于应用的测试。In addition, the Site Recovery team have performed app-specific testing for a number of apps.

后续步骤Next steps