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Using Snapshots

You can create, delete, or recover snapshots of the generated Block Storage (BM). You can perform actions on the Block Storage (BM) Details page and the Snapshot List page.

Create Snapshot

You can create a snapshot at the point in time you want. To create a snapshot, follow the steps below.

  1. All Services > Storage > Block Storage(BM) Click the menu. Navigate to the Service Home page of Block Storage(BM).
  2. Click the Block Storage(BM) menu on the Service Home page. You will be taken to the Block Storage(BM) List page.
  3. Block Storage(BM) List page, click the resource to create a snapshot. Navigate to the Block Storage(BM) Details page.
  4. Snapshot Capacity Check the setting status of the item.
    • Snapshots can only be created when storage space is secured by setting the snapshot capacity.
    • For more details, please refer to Modify Snapshot Capacity.
  5. Click the Create Snapshot button. Create Snapshot popup window opens.
  6. Confirm Click the button. Creates a snapshot of the current point in time.
  7. Click the Snapshot List page. Go to the Block Storage(BM) Snapshot list page.
  8. Check the generated snapshot.
Caution
  • If the maximum number of snapshots or the snapshot space threshold (around 90%) is exceeded, older snapshots will be deleted.
  • If the usage rate within snapshot capacity is high (around 90%), replication may be stopped.
  • If there is a volume in the Volume Group with snapshot capacity not set, you cannot create a snapshot. Set the snapshot capacity for all volumes first.
  • Snapshots can be created up to a maximum of 1,023 (the automatic creation count via schedule is up to 128), and if the maximum creation count is exceeded, no more snapshots can be created.
Reference
  • The snapshot creation date and time is based on Asia/Seoul (GMT +09:00).
  • If you want to automatically create snapshots via a schedule, set the snapshot schedule on the Block Storage(BM) Details page.
  • For detailed information about snapshot schedules, see Edit Snapshot Schedule.
  • The replica can use the snapshot feature after the replication policy is deleted.

Recover Snapshot

Block Storage(BM) volumes can be restored from a snapshot. To perform snapshot recovery, follow the steps below.

  1. Click the All Services > Storage > Block Storage(BM) menu. Go to the Service Home page of Block Storage(BM).
  2. Service Home page, click the Block Storage(BM) menu. Navigate to the Block Storage(BM) list page.
  3. Block Storage(BM) List On the page, click the resource to restore from the snapshot. Block Storage(BM) Details Navigate to the page.
  4. If there is a server added in the Connection Server item, after connecting to the server, perform the disconnect operation (Umount, Disk Offline).
  5. Snapshot List Click the page. Block Storage(BM) Snapshot List Go to the page.
  6. After checking the Snapshot Name and Creation Date/Time, click the More button of the snapshot you want to restore.
  7. Recovery Click the button. The snapshot recovery popup window opens.
  8. Snapshot Name and Creation Date and Time after checking, click the Confirm button. Recover the Block Storage volume as a snapshot.
  9. Click the Details button. You will be taken to the Block Storage (BM) Details page.
  10. Connection Server If there is a server added in the item, after connecting to the server, perform the connection tasks (Mount, Disk Online).
Caution
  • Snapshot recovery must be performed while disconnected (Umount, Disk Offline) on all connected servers, and the recovered volume can be used after reconnecting (Mount, Disk Online).
  • After the snapshot recovery is completed, all snapshots created after the snapshot used for recovery will be deleted.
  • When restoring a snapshot, the volume is restored to that point.
  • If you are using Volume Group (BM), you can perform snapshot recovery from the detail page of Volume Group (BM).

Create a recovery copy

Block Storage(BM) volume’s snapshot can be used to create a recovery copy. To create a snapshot recovery copy, follow the steps below.

  1. All Services > Storage > Block Storage(BM) Click the menu. Navigate to the Service Home page of Block Storage(BM).
  2. Click the Block Storage(BM) menu on the Service Home page. Navigate to the Block Storage(BM) List page.
  3. On the Block Storage(BM) List page, click the resource to restore from a snapshot. You will be taken to the Block Storage(BM) Details page.
  4. Connection Server If there is a server added in the item, after connecting to the server, perform the disconnect operation (Umount, Disk Offline).
  5. Snapshot List page, click it. Block Storage(BM) Snapshot List page, go to it.
  6. After confirming the Snapshot name and Creation date/time, click the More button of the snapshot you want to create a recovery copy for.
  7. Click the Create Recovery button. The snapshot recovery creation popup opens.
  8. After entering the Recovery volume name, click the Confirm button. A popup notifying the creation of the recovery copy opens.
  9. Click the Confirm button. The recovery copy creation request is completed.
Caution
  • Only one backup can be created per original.
  • A recovery copy is a separate volume created with the same capacity as the original, and incurs additional costs.
  • If you are using Volume Group (BM), you can create a backup on the detail page of Volume Group (BM).

Delete Snapshot

You can select a snapshot to delete. To delete a snapshot, follow the steps below.

  1. All Services > Storage > Block Storage(BM) Click the menu. Navigate to the Service Home page of Block Storage(BM).
  2. Service Home on the page, click the Block Storage(BM) menu. Go to the Block Storage(BM) list page.
  3. Block Storage(BM) List page, click the resource to delete the snapshot. Block Storage(BM) Details page will be opened.
  4. Click Snapshot List. Go to the Block Storage (BM) Snapshot List page.
  5. After checking the Snapshot Name and Creation Date/Time, click the More button of the snapshot you want to delete.
  6. Click the Delete button. The snapshot will be removed from the Snapshot List page.
Reference
  • Snapshots that contain snapmirror in the snapshot name cannot be deleted. snapmirror is included in the snapshot name when a replication is created.
  • If you are using Volume Group (BM), you can delete snapshots from the detail page of Volume Group (BM).
Connecting to a Server
Using Replication