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Using duplication

You can create a replica of the generated Block Storage (BM) in another location and synchronize it periodically. You can perform operations on the Block Storage(BM) Details page and the Replication page.

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

Create Clone

You can create a replica volume in a different location.

Caution
Clones can only be created from the original volume.
To create a replica volume, follow these steps.

  1. Click the All Services > Storage > Block Storage(BM) menu. 1. Go to the Service Home page of Block Storage (BM).

  2. Service Home on the page, click the Block Storage(BM) menu. 2. Go to the Block Storage(BM) List page.

  3. On the Block Storage(BM) List page, click the resource to create a replica. 3. Block Storage(BM) Details Navigate to the page.

  4. Verify the setting of the Snapshot Capacity item.

    • Replication can be created only when storage space is available through snapshot capacity configuration.
    • For more details, see 스냅샷 용량 수정하기.

  5. Click the Create Clone button. 5. Create Clone popup window opens.

  6. After entering the information for creating a clone, click the Create button. 6. Creates a replica with the same disk type.

    Category
    Required status
    		Detailed description
    Replication PolicyRequiredSelect replication policy
    • Within region: Create replication in the same region’s Availability Zone
    • Cross-region: Create replication in an Availability Zone of a different region
    Clone locationEssentialSelect the location to create the replica
    • Region: Select a location different from the original Block Storage (BM) volume
      • Selection is required only when creating replication between regions
    • Availability Zone: Select the Availability Zone to create the replica
    복제 볼륨명필수영문으로 시작하며 영문, 숫자와 특수문자(-)를 사용하여 3~28자로 입력하세요.
    복제 주기필수5분, 1시간, 매일, 매주, 매월 중 선택하세요. 아래 주기로 복제를 수행합니다.
    • 매일: 매일 23:59:00
    • 매주: 매주 일요일 23:59:00
    • 매월: 매월 1일 23:59:00
    Table. Replication creation information items

  7. On the Block Storage(BM) Details page, after clicking the Replication tab, check the replication information you created.

    • When selecting the volume name of the source or replica, you are taken to the volume’s Block Storage(BM) Details page.
Reference
  • When creating a clone, a replica with the same disk type is created.
  • After setting the snapshot size, you can create a replica, and the disk type of the created replica is the same as the original.
  • If the snapshot capacity usage is high (around 90%), replication may be stopped.
  • After setting the snapshot capacity, volumes added to the Volume Group can be replicated at the group level on the Volume Group page.
  • One replica can be created per volume, and data transfer charges apply for cross‑region replication.
  • A volume created by cloning cannot be added to a Volume Group.
  • If you are using a Volume Group, you can view replication information in the Volume Group (BM).

Edit replication policy

You can change the replication status by modifying the replication policy.

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

To modify the replication policy, follow these steps.

  1. Click the All Services > Storage > Block Storage(BM) menu. 1. Go to the Service Home page of Block Storage (BM).
  2. On the Service Home page, click the Block Storage(BM) menu. 2. Go to the Block Storage(BM) List page.
  3. On the Block Storage(BM) List page, click the resource to edit the replication policy. 3. Block Storage(BM) Details Go to the page.
  4. Clone page, please click. 4. Block Storage(BM) Replication Go to the page.
  5. Click the Edit button of the Replication Policy. 5. Edit Replication Policy The popup window opens.
    • Usage: Performs replication. * If it is Paused, you can change it to Enabled.
    • Pause: Temporarily stops replication. * If use is the case, it can be changed to pause.
    • Delete: Delete the replica. * If it is Paused, you can change it to Delete, and after deletion, you cannot use replication again.
  6. Check the modified Replication Policy on the Block Storage(BM) Replication page.
Caution
  • When deleting a policy, please pay attention to the following.
    • After the policy is deleted, replicas are not switched back to the original and cannot be created.
    • After deleting the policy, you cannot connect to existing replicas and can only create new replicas.
  • Data stored only in the replica after pausing will be deleted if replication is used again.
  • When a replication policy is used, replicas are in read (Read only) state and data cannot be modified. * Use replication after unmounting on all connected resources.
  • Mounting on the connected server is possible only when the replication policy is deleted or paused.

Modify replication cycle

You can change the synchronization interval between the primary and replica by modifying the replication interval.

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

To modify the replication interval, follow these steps.

  1. All Services > Storage > Block Storage(BM) Click the menu. 1. Go to the Service Home page of Block Storage (BM).
  2. On the Service Home page, click the Block Storage(BM) menu. 2. Go to the Block Storage(BM) List page.
  3. Block Storage(BM) List page, click the resource whose replication schedule you want to modify. 3. Block Storage(BM) Details Navigate to the page.
  4. Click the Clone page. 4. Navigate to the Block Storage(BM) Replication page.
  5. Click the Edit button of the Replication Cycle. 5. Edit Replication Cycle A popup window opens.
    • Replication interval: Select from 5 minutes, 1 hour, daily, weekly, monthly. * Replication is performed at the following intervals.
      • Daily: daily 23:59:00
      • Weekly: Every Sunday 23:59:00
      • Monthly: the 1st of each month at 23:59:00
  6. Check the modified Replication Interval on the Block Storage(BM) Replication page.
Use Snapshot
Using Volume Group