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Replication Policy Management

Replication can be performed on a bucket in a different location or the same location.
You can configure multiple replication policies, and if the source bucket becomes unavailable due to a failure or disaster, you can provide the service through the replica bucket.

Information
  • The replication feature operates in a 1:N structure, allowing replication within a region or between regions. When performing cross‑region replication, data transfer fees are added.
  • The replication feature applies only to files uploaded after the replication policy is set.
  • Deleting the versioned file in the source does not delete the files in the replica bucket.
    • Example: When configured from Bucket A → Bucket B, even if the version files in Bucket A are deleted, they remain in Bucket B.
  • Bidirectional replication can be configured.
    • Example: When configured as Bucket A ↔ Bucket B, files uploaded to Bucket A are replicated to Bucket B, and files uploaded to Bucket B are replicated to Bucket A.
  • The duplicated file is not duplicated.
    • Example: When configured as Bucket A → Bucket B → Bucket C, files replicated from Bucket A → Bucket B are not replicated from Bucket B → Bucket C.
Reference
The kr-south region does not provide inter-region Object Storage replication.

Add replication policy

Information
  • You can configure replication on the created bucket.
  • To add a replication policy, you must set the version control feature to enabled.
  • Refer to Configure Version Management for how to configure the version management feature.

To add a replication policy, follow these steps.

  1. Click the All Services > Storage > Object Storage menu. Navigate to the Service Home page of Object Storage.
  2. On the Service Home page, click the Object Storage menu. You will be taken to the Object Storage List page.
  3. On the Object Storage List page, click the resource to which you want to add a replication policy. Then navigate to the Object Storage Details page.
  4. Click the Clone tab.
  5. Click the Add button. The Add Replication Policy popup opens.
  6. After entering the policy information, click the Confirm button. A popup notifying the creation of a replication policy will appear.
CategoryRequired or notDetailed description
Policy NameRequiredEnter the name of the replication policy
  • including English letters, numbers, and special characters (-._) within 255 characters
Clone locationRequiredSelect replication location (region)
  • Other locations can be selected
Replication bucket nameRequiredSelect the name of the replica bucket
  • If set to be the same as the source bucket name, adding a replication policy is not allowed
target fileRequiredSelect files to duplicate
  • All: Duplicate all files
  • Prefix: Duplicate files that start with the value entered as a prefix
    • Enter within 1,024 bytes based on UTF-8 encoding (same as file length restriction)
    • Special characters (%<>#\`^)
Delete marker duplicationSelectWhether to use delete marker replication
Table. Add replication policy popup items
  1. Click the Confirm button. The replication policy will be added.
Caution

If there is an invalid policy, you cannot add a replication policy.

  • Example: If a replication bucket has been deleted but its policy remains, you cannot add a replication policy.

Modify Replication Policy

You can modify the replication location, replication bucket name, and target file of the replication policy.

guide
  • To modify the replication policy, you must set the versioning feature to enabled.
  • Refer to Configure Version Management for instructions on configuring the versioning feature.

To modify the replication policy, follow these steps.

  1. Click the All Services > Storage > Object Storage menu. Navigate to the Service Home page of Object Storage.
  2. On the Service Home page, click the Object Storage menu. You will be taken to the Object Storage List page.
  3. On the Object Storage List page, click the resource to edit the replication policy. You will be taken to the Object Storage Details page.
  4. Click the Clone tab.
  5. In the replication policy list, click the More > Edit button of the policy you want to modify. The Edit Replication Policy popup window will open.
  6. After modifying the replication policy information, click the Confirm button. A popup notifying the replication policy modification will appear.
CategoryRequired?Detailed description
Clone locationRequiredSelect the replication location (region)
  • Other locations can be selected
Replication bucket nameRequiredEnter the name of the replicated bucket
  • If set to the same as the source bucket name, the replication policy cannot be modified
  • If you set a bucket that is already in use as the replication bucket, the replication policy cannot be modified
target fileRequiredSelect files to replicate
  • All: Replicate all files
  • Prefix: Replicate files that start with the entered prefix
    • Enter within 1,024 bytes based on UTF-8 encoding (same as file length limit)
    • Special characters (%<>#\`^\
Delete marker duplicationSelectionWhether to use delete marker replication
Table. Replication Policy Edit Popup Items
  1. Click the Confirm button. The replication policy update is complete.
Caution

If there is an invalid policy, you cannot add a replication policy.

  • Example: If a replication bucket has been deleted but its policy remains, you cannot add a replication policy.

Changing Replication Policy Status

You can enable or disable the replication policy to change whether it is executed.

To change the replication policy status, follow the steps below.

  1. Click the All Services > Storage > Object Storage menu. Navigate to the Service Home page of Object Storage.
  2. On the Service Home page, click the Object Storage menu. You will be taken to the Object Storage List page.
  3. On the Object Storage List page, click the resource whose replication policy status you want to change. You will be taken to the Object Storage Details page.
  4. Click the Clone tab.
  5. From the replication policy list, click the More > Enable or More > Disable button for the policy whose status you want to change. A popup will appear notifying you of the replication policy status change.
    • Enabled: Performs replication according to the replication policy.
    • Disabled: Stops replication.
  6. Click the Confirm button. The status of the replication policy will change.

Delete replication policy

You can delete unused replication policies.

To modify the replication policy, follow these steps.

  1. Click the All Services > Storage > Object Storage menu. Navigate to the Service Home page of Object Storage.
  2. On the Service Home page, click the Object Storage menu. You will be taken to the Object Storage List page.
  3. Object Storage List page, click the resource to delete the replication policy. Go to the Object Storage Details page.
  4. Click the Clone tab.
  5. In the replication policy list, click the More > Delete button for the policy you want to modify. A popup notifying you of the replication policy deletion will appear.
  6. Click the Confirm button. The replication policy will be deleted.
Caution
  • If you change the versioning setting of the source and replica buckets, replication will not function properly.
    • If versioning on the source bucket is set to disabled, replication is not performed. Setting it to enabled will replicate files uploaded after the setting.
    • If you set versioning of the replica bucket to disabled, replication will be performed but versioning is not possible. If you set it back to enabled, versioning will apply from the point of configuration onward.
  • If you delete the source bucket, the configured replication policy will also be deleted.
  • If you delete the replica bucket, the replication policy configured on the source bucket is retained.
    • If you recreate a replication bucket with the same bucket name as a deleted replication bucket, replication will be performed to that bucket.

Activating ServiceWatch Replication Metrics

By default, Object Storage is integrated with ServiceWatch and basic monitoring. To link Object Storage replication metrics to ServiceWatch, you must enable ServiceWatch replication metric. For more information about ServiceWatch, see ServiceWatch Overview.

Caution
  • Basic monitoring is provided at no cost, but enabling replication metrics as a detailed monitoring item incurs additional fees.
  • The ServiceWatch replication metric, when configured once per bucket, applies to all replication policies of that bucket.

To enable the ServiceWatch replication metric for Object Storage, follow these steps.

  1. Click the All Services > Storage > Object Storage menu. You will be taken to the Service Home page of Object Storage.
  2. On the Service Home page, click the Object Storage menu. You will be taken to the Object Storage List page.
  3. On the Object Storage List page, click the resource to enable ServiceWatch replication metrics. Then go to the Object Storage Details page.
  4. Click the Replication tab on the Object Storage Details page. Proceed to the Replication tab.
  5. Click the Edit button for the ServiceWatch replication metric. You will be taken to the Edit ServiceWatch replication metric popup.
  6. ServiceWatch Replication Metric Edit In the popup window, after selecting Enable, review the instructions and click the Confirm button.
  7. In the Replication tab, view the ServiceWatch replication metric items.

Disabling ServiceWatch Replication Metrics

Caution
Disabling the replication metric is required for cost efficiency. Keep the replication metric enabled only when absolutely necessary, and disable the replication metric for the rest.

To disable the ServiceWatch replication metric for Object Storage, follow these steps.

  1. Click the All Services > Storage > Object Storage menu. Navigate to the Service Home page of Object Storage.
  2. On the Service Home page, click the Object Storage menu. You will be taken to the Object Storage list page.
  3. On the Object Storage List page, click the resource to disable ServiceWatch detailed monitoring. Navigate to the Object Storage Details page.
  4. On the Object Storage Details page, click the Replication tab. Navigate to the Replication tab.
  5. Click the Edit button for the ServiceWatch replication metric. You will be taken to the Edit ServiceWatch replication metric popup.
  6. ServiceWatch Replication Metric Edit In the popup window, after deselecting Enable, review the guidance text and click the Confirm button.
  7. In the Replication tab, check the ServiceWatch replication metric items.
Permission Management
Release Note