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Using Replication

You can create a replica in a different location of the created Block Storage(BM) and synchronize it periodically, and you can perform tasks on the Block Storage(BM) details page and the replication page.

Reference
  • The kr-south region does not provide Block Storage(BM) replication feature.

Create a copy

You can create a replica volume in a different location. To create a replica volume, follow these steps.

  1. All Services > Storage > Block Storage(BM) menu is clicked. It moves to the Service Home page of Block Storage(BM).
  2. Service Home page, click the Block Storage(BM) menu. It moves to the Block Storage(BM) list page.
  3. Block Storage(BM) list page, click on the resource to create a replica. It moves to the Block Storage(BM) details page.
  4. Snapshot capacity item’s setting status should be checked.
  • Replication creation is only possible when storage space is secured through snapshot capacity setting.
  • For more detailed information, please refer to Modifying snapshot capacity.
  1. Replicate Create button will be clicked. Replicate Create popup window will be opened.
  2. Replication location and replication volume name, replication cycle should be entered and the confirm button should be clicked. It creates a replica with the same disk type.
  • Replication location: Select a location different from the original Block Storage(BM) volume.
  • Replica Volume Name: It should start with English and use English, numbers, and special characters(-) to input 3-28 characters.
  • Replication cycle: Choose from 5 minutes, 1 hour, daily, weekly, or monthly. Replication will be performed according to the selected cycle.
  • Daily: every day 23:59:00
  • Every week: every Sunday 23:59:00
  • Every month: every month 1st 23:59:00
  1. Replication page will be clicked. It moves to the Replication page.
  2. Check the replication information.
  • When selecting the volume name of the original or replica, it moves to the Block Storage(BM) details page of the volume.
Note
  • When replicating, a replica with the same disk type is created.
  • After setting the snapshot capacity, a replica can be created, and the disk type of the created replica is the same as the original.
  • In cases where the snapshot capacity usage rate is high (around 90%), replication may be stopped.
  • After setting the snapshot capacity, the volume added to the Volume Group can be replicated in units of Group on the Volume Group page.
  • One replica can be created per volume, and additional data transfer fees apply when replicating across regions.
  • The replicated created volume cannot be added to the Volume Group.
  • If you are using Volume Group, you can check the replication information from Volume Group (BM).

Modify replication policy

You can change the replication status through replication policy modification.

Caution
During replication, you cannot modify the replication cycle and replication policy.

To modify the replication policy, follow the following procedure.

  1. All services > Storage > Block Storage(BM) menu is clicked. It moves to the Service Home page of Block Storage(BM).
  2. Service Home page, click the Block Storage(BM) menu. It moves to the Block Storage(BM) list page.
  3. Block Storage(BM) list page, click the resource to modify the replication policy. It moves to the Block Storage(BM) details page.
  4. Replication page is clicked. It moves to the Block Storage(BM) replication page.
  5. Replication Policy’s Edit button should be clicked. Replication Policy Edit popup window will be opened.
  • Usage: performs replication. Paused can be modified to Usage.
  • Temporary suspension: temporarily suspends replication. If in use, it can be modified to temporary suspension.
  • Delete: It deletes the replication. In case of pause, it can be modified to delete, and after deletion, replication cannot be used again.
  1. Block Storage(BM) replication page, check the modified replication policy.
Caution
  • Be aware of the following when deleting a policy.
  • After deleting the policy, the replica is not converted to the original and cannot create a replica.
  • After deleting the policy, you cannot connect to the existing replica, and you can only create a new replica.
  • Data stored only in replicas after temporary suspension will be deleted when replication is used again.
  • When using the replication policy, the replica is in a read-only state and data modification is not possible. Please use replication after unmounting from all connected resources
  • The replication policy can be mounted from the connection server only when it is deleted or in a paused state.

Modify replication cycle

You can change the synchronization cycle between the original and the copy through replication cycle modification.

Caution
During replication, you cannot modify the replication cycle and replication policy.

To modify the replication cycle, follow the following procedure.

  1. All services > Storage > Block Storage(BM) menu is clicked. It moves to the Service Home page of Block Storage(BM).
  2. Service Home page, click the Block Storage(BM) menu. It moves to the Block Storage(BM) list page.
  3. Block Storage(BM) list page, click the resource to modify the replication cycle. It moves to the Block Storage(BM) details page.
  4. Replication page will be clicked. It moves to the Block Storage(BM) replication page.
  5. Replication Cycle’s Edit button should be clicked. Replication Cycle Edit popup window will be opened.
  • Replication cycle: Select from 5 minutes, 1 hour, daily, weekly, or monthly. Replication will be performed according to the selected cycle.
  • Daily: every day 23:59:00
  • Every week: every Sunday 23:59:00
  • Every month: every month 1st 23:59:00
  1. Block Storage(BM) replication page where you can check the modified replication cycle.
Using Snapshots
Using Volume Group