How-to guides

• 1: Connect to Server
• 2: Using Snapshots
• 3: Transfer volume

1 - Connect to Server

When using a volume on the server, a connect or disconnect operation is required.
On the Block Storage Details page, add a connected server, then access the server to perform connection operations (Mount, Disk Online). After use, perform disconnection operations (Umount, Disk Offline) and then remove the connected server.

Connect to Server (Mount, Disk Online)

To use the volume added to the connected server, you must log into the server and perform the connection tasks (Mount, Disk Online). Follow the steps below.

Linux operating system

1. Click the All Services > Compute > Virtual Server menu. Navigate to the Service Home page of Virtual Server.
2. Click the Block Storage menu. Go to the Block Storage List page.
3. On the Block Storage List page, click the resource to be used on the connected server. Navigate to the Block Storage Details page.
4. After verifying the server in the Connection Server item, connect.
5. Refer to the steps below to mount the volume (Mount).

• Switch to root privileges

  $ sudo -i
  

• Check Disk

  # lsblk
  NAME    MAJ:MIN  RM   SIZE RO TYPE MOUNTPOINT
  vda       252:0   0    24G  0 disk
  ├─vda1    252:1   0  23.9G  0 part [SWAP]
  └─vda14   252:14  0     4M  0 part /
  └─vda15   252:15  0   106M  0 part /boot/efi
  vdb       252:16  0    24G  0 disk
  

• Create partition

  # fdisk /dev/vdb
  Command (m for help): n
  
  Partition type:
     p   primary (0 primary, 0 extended, 4 free)
     e   extended
  Select (default p): p
  Partition number (1-4, default 1): 1
  First sector (2048-50331646, default 2048):
  Last sector, +/-sectors or +/-size{K,M,G,T,P} (2048-50331646, default 50331646):
  
  Created a new partition 1 of type 'Linux' and of size 24 GiB.
  
  Command (m for help): w
  The partition table has been altered!
  Calling ioctl() to re-read partition table.
  Syncing disks.
  

• Partition format setting (example: ext4)

  # lsblk
  NAME    MAJ:MIN  RM   SIZE RO TYPE MOUNTPOINT
  vda       252:0   0    24G  0 disk
  ├─vda1    252:1   0  23.9G  0 part [SWAP]
  └─vda14   252:14  0     4M  0 part /
  └─vda15   252:15  0   106M  0 part /boot/efi
  vdb       252:16  0    24G  0 disk
  └─vdb1    252:17  0    24G  0 part
  
  # mkfs.ext4 /dev/vdb1
  mke2fs 1.46.5 (30-Dec-2021)
  ...
  Writing superblocks and filesystem accounting information: done
  

• Volume Mount

  # mkdir /data
  
  # mount /dev/vdb1 /data
  
  # lsblk
  NAME    MAJ:MIN  RM   SIZE RO TYPE MOUNTPOINT
  vda       252:0   0    24G  0 disk
  ├─vda1    252:1   0  23.9G  0 part [SWAP]
  └─vda14   252:14  0     4M  0 part /
  └─vda15   252:15  0   106M  0 part /boot/efi
  vdb       252:16  0    24G  0 disk
  └─vdb1    252:17  0    24G  0 part /data
  
  # vi /etc/fstab
  (추가) /dev/vdb1     /data       ext4     defaults   0 0
  

Windows operating system

1. Click the All Services > Compute > Virtual Server menu. Navigate to the Virtual Server Service Home page.
2. Click the Block Storage menu. You will be taken to the Block Storage List page.
3. On the Block Storage List page, click the resource to be used on the connected server. You will be taken to the Block Storage Details page.
4. Connection Server item, verify the server and then connect.
5. Refer to the steps below to connect the volume (Disk Online).

• After right-clicking the Windows Start icon, run Computer Management.

• In the Computer Management tree structure, select Storage > Disk Management

• Check Disk

  

• Disk Online

  

• Disk initialization

  

  

• Partition format

  

  

  

• Check volume

  

Disconnect server (Umount, Disk Offline)

Access the server, perform the disconnect operations (Umount, Disk Offline), and then disconnect the server from the Console.

Follow the next procedure.

Linux operating system

1. Click the All Services > Compute > Virtual Server menu. Navigate to the Service Home page of Virtual Server.
2. Click the Block Storage menu. Navigate to the Block Storage List page.
3. On the Block Storage List page, click the resource to detach the attached server. You will be taken to the Block Storage Details page.
4. After verifying the server in the Connection Server item, connect.
5. Refer to the steps below to unmount the volume(Umount).
   • Volume Umount

  # umount /dev/vdb1 /data

  # lsblk
  NAME    MAJ:MIN  RM   SIZE RO TYPE MOUNTPOINT
  vda       252:0   0    24G  0 disk
  ├─vda1    252:1   0  23.9G  0 part [SWAP]
  └─vda14   252:14  0     4M  0 part /
  └─vda15   252:15  0   106M  0 part /boot/efi
  vdb       252:16  0    24G  0 disk
  └─vdb1    252:17  0    24G  0 part

  # vi /etc/fstab
  (삭제) /dev/vdb1     /data       ext4     defaults   0 0

Windows operating system

1. Click the All Services > Compute > Virtual Server menu. Navigate to the Service Home page of Virtual Server.

2. Click the Block Storage menu. Go to the Block Storage List page.

3. Block Storage List page, click the resource to detach the connected server. Navigate to the Block Storage Details page.

4. In the Connection Server field, verify the server before connecting.

5. Unmount the mounted file system.

6. Please follow the procedure below to detach the volume (Disk Offline).

   • Right-click the Windows Start icon, then run Computer Management.

   • In the Computer Management tree structure, select Storage > Disk Management

   • Right-click the disk to be removed, then run Offline

     

   • Check disk status

     

2 - Using Snapshots

You can create a snapshot of the created Block Storage, delete it, or recover using the snapshot. You can perform actions on the Block Storage Details page and the Snapshot List page.

Create Snapshot

You can create a snapshot of the current point in time. To create a snapshot, follow these steps.

1. Click the All Services > Compute > Virtual Server menu. 1. Navigate to the Service Home page of the Virtual Server.
2. Block Storage Click the menu. 2. Block Storage List navigate to the page.
3. On the Block Storage List page, click the resource to create a snapshot. 3. Block Storage Details Navigate to the page.
4. Click the Create Snapshot button. 4. Create Snapshot The popup window opens.
5. Enter the Snapshot Name and Description, then click the Create button.
6. When the popup notifying snapshot creation opens, click the Confirm button. 6. Creates a snapshot of the current point in time.
7. Click the Snapshot List button. 7. Navigate to the Block Storage Snapshot List page.
8. Check the generated snapshot.

Edit Snapshot

You can modify snapshot information. To modify the snapshot name or description, follow these steps.

1. All Services > Compute > Virtual Server Click the menu. 1. Go to the Service Home page of the Virtual Server.
2. Click the Block Storage menu. 2. Go to the Block Storage List page.
3. On the Block Storage List page, click the resource to edit the snapshot information. 3. Block Storage Details Navigate to the page.
4. Click the Snapshot List button. 4. Navigate to the Block Storage Snapshot List page.
5. After confirming the snapshot to edit, click the More button.
6. Edit Click the button. 6. Snapshot Edit The popup window opens.
7. Enter the Snapshot name or Description, then click the Confirm button.

Restore Snapshot

You can restore a Block Storage volume to the latest snapshot in the Available state. To restore a snapshot, follow these steps.

1. All Services > Compute > Virtual Server menu, please click. 1. Navigate to the Service Home page of the Virtual Server.
2. Block Storage Click the menu. 2. Go to the Block Storage List page.
3. On the Block Storage List page, click the resource you want to restore from a snapshot. 3. Navigate to the Block Storage Details page.
4. If there is a server added in the Connection Server item, after connecting to the server, perform the disconnect operations (Umount, Disk Offline).
   • For detailed information about disconnecting the server, please refer to 서버 연결 해제하기.
5. On the Block Storage Details page, click the Disconnect button in the Connected Server item to remove the server. 5. The connection server will be removed.
   • For detailed information on disconnecting the server, see 연결 서버 수정하기.
6. Click the Snapshot List button. 6. Block Storage Snapshot List Navigate to the page.
7. Check the latest snapshot in the Available state. 7. The volume will be restored from this snapshot.
8. Click the Snapshot Recovery button. 8. Snapshot Recovery popup window opens.
9. After checking the snapshot name and creation timestamp, click the Confirm button.
   • When recovery starts, it becomes Reverting, and when completed, it becomes Available.
10. Click the Details page button. 10. Go to the Block Storage Detail Page.
11. Click the Add button of the Connection Server. 11. Reconnect the Virtual Server.
    • For detailed information on adding a connection server, see 연결 서버 수정하기.
12. After connecting to the added server, perform the connection tasks (Mount, Disk Online) according to the operating system.
    • For detailed information about server connections, refer to 서버 연결하기.

Create a snapshot recovery volume

You can create a volume using a snapshot. To create a snapshot recovery volume, follow these steps.

1. All Services > Compute > Virtual Server Click the menu. 1. Navigate to the Service Home page of the Virtual Server.

2. Click the Block Storage menu. 2. Go to the Block Storage List page.

3. On the Block Storage List page, click the resource to create a snapshot recovery volume. 3. Navigate to the Block Storage Details page.

4. Click the Snapshot List button. 4. Navigate to the Block Storage Snapshot List page.

5. After verifying the snapshot name, description and creation date and time, click the More button of the snapshot you wish to restore.

6. Click Create recovery volume. 6. Create snapshot recovery volume A popup window opens.

7. Click the Create button. 7. Go to the Create Block Storage page.

8. On the Block Storage Creation page, enter the information required to create the service and select detailed options.

   • Enter the volume name and capacity. * You can input a capacity that is greater than or equal to the original volume.
   • The disk type is set to match the original and cannot be modified.

     Category	Required	상세 설명
     볼륨명	필수	볼륨 이름 영문, 숫자, 공백과 특수문자(-, _) 사용하여 255자 입력
     디스크 유형	필수	디스크 유형 선택 SSD_Provisioned: IOPS, Throughput 설정이 가능한 SSD 볼륨 SSD/HDD: 일반 SSD/HDD 볼륨 SSD/HDD_KMS: 추가 암호화 볼륨 SSD/HDD_MultiAttach: 2개 이상의 서버 연결이 가능한 볼륨 서비스 생성 후 수정 불가 스냅샷 복구 볼륨 생성을 통해 서비스 생성 시 원본과 동일하게 설정되며 수정이 불가함
     용량	선택	용량 설정 8~12,228GB 이내로 생성 가능 8GB 단위로 제공되는 Unit 개수 입력 스냅샷 복구 볼륨 생성을 통해 서비스 생성 시 원본보다 크거나 같은 용량으로 입력
     Max IOPS	필수	Enter the maximum IOPS value between 5,000 and 20,000 Disk type can be set only when it is SSD_Provisioned
     Max Throughput	Required	Enter the maximum Throughput value between 250 and 1,000 Can be set only when Disk type is SSD_Provisioned
     Recovery snapshot name	Selection	Name of the recovery snapshot used when creating the volume Provide the recovery snapshot name when creating a service via snapshot recovery volume creation

     Table. Block Storage service information entry items

9. Summary Verify the detailed information and estimated charges generated in the panel, then click the Create button.

   • When creation is complete, check the created resources on the Block Storage List page.

Delete Snapshot

You can select a snapshot and delete it. To delete a snapshot, follow these steps.

1. All Services > Compute > Virtual Server Click the menu. 1. Go to the Service Home page of the Virtual Server.
2. Click the Block Storage menu. 2. Go to the Block Storage List page.
3. On the Block Storage List page, click the resource to delete the snapshot. 3. Block Storage Details Navigate to the page.
4. Click the Snapshot List button. 4. Navigate to the Block Storage Snapshot List page.
5. After verifying the snapshot name, description and creation date and time, click the More button of the snapshot you wish to delete.
6. Click the Delete button. 6. Snapshot List page removes snapshots.

3 - Transfer volume

You can transfer the volume to another account, and when you do so, the volume is removed from its original location. You can perform volume migration on the Block Storage List or Block Storage Details page.

Previous volume

You can transfer the volume to another Account. To migrate the volume, follow these steps.

1. Click the All Services > Compute > Virtual Server menu. 1. Navigate to the Service Home page of Virtual Server.
2. Click the Block Storage menu. 2. Block Storage List Navigate to the page.
3. On the Block Storage List page, after selecting the resource to migrate, click the More > Migrate Volume button at the top left of the list.
   • Or click the Volume Transfer button at the top of the Block Storage Details page of the resource to be transferred.
4. When the popup notifying volume transfer opens, verify the volume name you want to transfer, then click the Confirm button.
5. When the previous completion popup opens, click the Confirm button. 5. Volume Transfer ID and Approval Key information will be downloaded as a text file.
6. The volume changes to Awaiting Transfer status.

Cancel previous volume

You can cancel after creating a volume transfer. To cancel the volume transfer, follow these steps.

1. Click the All Services > Compute > Virtual Server menu. 1. Navigate to the Service Home page of the Virtual Server.
2. Click the Block Storage menu. 2. Navigate to the Block Storage List page.
3. On the Block Storage List page, click the resource to cancel the volume migration. 3. Go to the Block Storage Details page.
   • If the volume is in Awaiting Transfer status, it can be canceled.
4. Click the Cancel previous volume button. 4. Cancel previous volume A popup window opens.
5. After confirming the volume name for which you want to cancel the volume transfer, click the Confirm button.
6. The volume changes to Available state.

Receive previous volume

You can receive a volume transfer from another Account. To receive a volume transfer, follow the steps below.

1. All Services > Compute > Virtual Server menu, click it. 1. Navigate to the Service Home page of the Virtual Server.
2. Click the Block Storage menu. 2. Go to the Block Storage List page.
3. On the Block Storage List page, click the More > Receive Volume Transfer button at the top left of the list. 3. Receive previous volume A popup window opens.
4. Volume Migration Enter the provided Volume Migration ID and Approval Key.
5. A volume is created on the Block Storage List page.