ECS instance backup is a service provided by HBR to protect the data on ECS instances by using disk snapshots. HBR provides automatic backup policies for ECS instances and a GUI console. In the HBR console, you can configure backup or restoration parameters. You can also perform restore, clone, and disaster recovery operations. You can manage backup files by using ECS instances instead of disks. This way, you can protect data on ECS instances in an efficient manner.

Scenarios

  • Back up or restore ECS instances:

    HBR allows you to use automatic backup policies and ECS instance backup to back up or restore ECS instances.

  • Quickly build testing or development environments:

    HBR allows you to clone a new ECS instance from the restoration point of an ECS instance within a few minutes. You can use the new ECS instance as a testing or development environment.

  • Implement cross-zone or cross-region disaster recovery at low costs

    The clone feature for ECS instance backup allows you to create ECS instances in different zones. After you enable remote replication for ECS instances, you can use create new ECS instances to resume your services by using one of the remote resotration points.

Principles

ECS instance backup allows you to perform data backup and disaster recovery for ECS instances by using snapshots, snapshot-consistent groups, and remote snapshot replication.

  1. After you configure a backup policy, HBR automatically creates snapshots for all disks based on the backup policy. A restoration point contains the snapshots that are created for all disks at a specific point in time.
  2. If the type of all disks on an ECS instance is ESSD, HBR ensures the consistency of data on the ECS instance based on the snapshot-consistency group feature. If the type of disks on an ECS instance is ESSD, HBR creates snapshots for all disks at the same time. In this case, HBR cannot ensure the consistency of data between disks.
  3. If you enable remote replication when you configure a backup policy, the snapshots in a restoration point are automatically replicated to a specified backup region. This way, you can back up data in a remote location.
  4. When you restore an ECS instance, HBR uses the specified snapshots to roll back all disks to a specific point in time.
  5. When you clone ECS instances or perform geo-disaster recovery, HBR creates disks from the snapshots of a specified restoration point, and then creates ECS instances based on the disks.

Billing

You are charged when you create ECS snapshots. ECS instance backup is a backup orchestration service that is provided by HBR based on the ECS snapshot capability. You are charged USD 0.005088 for each client per day when you use HBR clients to back up ECS instances. The fees are included into your HBR bills. Bills are generated on a daily basis. The fees for the storage usage of ECS snapshots that are used by this feature are included into the snapshot service bill. If you enable the remote replication feature, the fees for the storage usage of ECS snapshots that are replicated to the destination region and the fees for cross-region traffic are also included into the snapshot service bill. For more information, see Snapshots.