Faced with rapid business development, enterprises tend to build their disaster recovery architectures while considering service load balancing, O&M, expenditure, security, and other factors. The hybrid cloud-based multi-active disaster recovery solution provides a multi-active disaster recovery architecture based on a hybrid cloud consisting of an on-premises data center (IDC) and a cloud platform. This solution meets enterprises' requirements for service continuity.

Why use a hybrid cloud?

Based on a hybrid cloud architecture, the hybrid cloud-based multi-active solution can relieve enterprises of concerns about service scalability, O&M, costs, and security when they build their disaster recovery systems.
  • Service scalability:

    Enterprises must quickly respond to changing service demands to stay in the game. Public cloud platforms support auto scaling and are able to respond to frequent business activities. For example, during the Double 11 Shopping Festival and other activities that produce traffic spikes, public cloud platforms should be able to tolerate these traffic peaks. By integrating the capabilities of traditional IDCs and cloud platforms, the hybrid cloud solution can meet the needs of enterprises for service expansion on their system architectures.

  • O&M:

    To resize an application in a traditional IDC, you have to apply to purchase a server, install the server and operating system, and deploy the application. The whole process is complex and time-consuming. Additionally, a series of problems may occur during resizing. For example, system faults may occur due to different server environments. To resize an application on a hybrid cloud, you only need to focus on O&M for the cloud-based application and do not need to consider O&M for the cloud platform infrastructure. This greatly reduces the difficulty of resizing and the complexity of O&M.

  • Cost control:

    In a hybrid cloud solution, cloud resources are used to reduce the volume of idle resources present in traditional disaster recovery solutions, as well as the overall hardware and software O&M costs. You can wholly migrate your system to a public cloud without any additional investment, reducing the costs of system transformation and the migration time.

  • Security control:

    In terms of security, the hybrid cloud solution allows you to migrate computing and cache nodes used for Internet access and front-end applications to Alibaba Cloud. While using Alibaba Cloud's mature and comprehensive security protection solutions, you can store core group data in your on-premises IDC to ensure its security.

Choose a local active-active or remote multi-active solution as needed

In the hybrid cloud-based multi-active solution, you can deploy two or more active IDCs in regions or zones in the same city or different cities based on your location and disaster recovery policies. In the hybrid cloud-based remote active-active solution, only one remote cloud node is deployed. In the hybrid cloud-based remote multi-active solution, the services are provided in multiple regions to support disaster recovery. Therefore, users all over the country can access the service through the nearest region. When the service is interrupted in a region, the service traffic is immediately switched to unaffected regions.

Compared to the traditional local disaster recovery or active-active architecture, the hybrid cloud-based multi-active architecture solves the following problems:
  • It is difficult to determine whether the traffic is switched to the disaster recovery center.
  • When the disaster recovery center does not provide services, its resources are idle, resulting in high costs.
  • The IDC that provides services is still deployed in a single region. When the service volume reaches a certain level, performance may slow due to the limited resources of a single region.
  • In a traditional architecture, the two active IDCs are close to each other (usually within 50 km). Natural disasters or widespread power or network failures may result in both IDCs becoming unavailable.

The hybrid cloud-based multi-active architecture not only provides the functions of traditional remote disaster recovery solutions, but also improves the overall resource utilization and meets the remote deployment needs caused by business growth. Based on its years of experience with multi-active architecture during the Double 11 Shopping Festival, Alibaba Cloud provides you with a stable and cost-effective hybrid cloud-based multi-active disaster recovery solution.