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Cloud Backup:ACK container backups

Last Updated:Jun 20, 2026

Cloud Backup integrates with Container Service for Kubernetes (ACK) to protect your containerized applications. You can use this feature to back up data from persistent volumes (PVs) of the Alibaba Cloud Object Storage Service (OSS) and NAS types. You are charged based on the storage space your backups consume in a container backup vault. The Cloud Backup console is for viewing only; you cannot perform backup or restore operations. This topic describes how to view your container backup details in the Cloud Backup console.

Prerequisites

Ensure that you have enabled the application backup feature in the ACK console. For more information, see Install the migrate-controller backup component and configure permissions and ACK application backup.

Background

As more applications run in containers, regularly backing up their storage resources becomes critical. The ACK application backup feature uses Cloud Backup to back up data from persistent volumes (PVs) of the OSS and NAS types.

After you enable the application backup feature in the ACK console, the Cloud Backup service runs as a daemon named hbr-client. You can verify its status in the ACK console. On the DaemonSets page, the service deploys a DaemonSet named hbr-client in the csdr namespace with the label app:hbr-client. A Pod count of 1/1 indicates that the client is running correctly.

Billing

Cloud Backup charges a backup storage capacity fee based on the storage capacity of the container backup vault. For more information, see Pricing.

View container backups

Note

The Cloud Backup console is for viewing only and does not support backup or restore operations. To perform these operations, use the application backup feature in the ACK console. For more information, see Install the migrate-controller backup component and configure permissions.

  1. Log on to the Cloud Backup console.

  2. In the navigation pane on the left, choose Backup > Container Backup.

  3. In the top navigation bar, select a region.

  4. View the container backups.

    • The Clusters tab lists your protected clusters. Click an ACK Cluster ID to view the protected persistent volume claims (PVCs). For more information, see Persistent volume claim (PVC).

      If the Client Status is abnormal, it indicates that the Cloud Backup service is not running correctly in the ACK cluster. To resolve this, go to the DaemonSets page in the ACK console. The list includes columns such as ACK Cluster ID, ACK Cluster, Network Type, Client Status, Remarks, and Actions. A Client Status of Ready indicates that the cluster client is registered successfully. In the Actions column, you can click View Protected Storage Claims for more details.

    • The Backup Jobs tab displays the running status of backup jobs.

      You can filter the jobs on this tab by ACK Cluster ID. The job list includes columns such as Backup Job/ID, ACK Cluster ID, Vault Name/ID, Persistent Volume Claim/ID, Source Data Size, Vault Usage, Backup Speed, Time Period, Status, and Actions. This tab provides details for each backup job, such as its source data size, vault usage after deduplication, transfer speed, execution time, and progress.

Browse backed-up files

To browse backed-up files, in the Actions column of the target ACK cluster, click View Protected Storage Claims, and then perform the following steps:

  1. On the Volume Claim Details page, click the plus sign (+) next to the target Volume Claim Details.

  2. Select a backup point in time. In the calendar panel on the Volume Claim Details page, select the target backup date. A list of backup time points for that day appears below. Click a time point, for example, 2024-07-02 11:24:55.

  3. Click the link that appears after the backup time point.

    The Browse panel opens, displaying your backup data in a tree structure, such as Browse. It also shows the number of files in each directory in orange text. Expand the directories to browse their contents.

View container backup vaults

In the left-side navigation pane, click Storage Vaults. Cloud Backup creates a vault in each region for ACK application backups. This container backup vault is named ack-backup-data. Billing is based on the Storage Vault Data Size.

For more information about vault types, see Vault types.

On the Storage Vaults page, you can see a list of your vaults. This list includes information such as Vault Name/ID, Data Lock Method, Tags, Resource Group, Vault Type, Number of Backup Plans, Source Data Size, Storage Vault Data Size, Creation Time, Status, and Actions. Vaults with a Vault Type of Container Backup Vault are used for container backups. You can view their details, including the number of backup plans, data size, and current status.