Attaching a disk to a VM

If you do not have the Yandex Cloud CLI yet, install and initialize it.

The folder specified when creating the CLI profile is used by default. To change the default folder, use the yc config set folder-id <folder_ID> command. You can specify a different folder using the --folder-name or --folder-id parameter.

1. See the description of the CLI command for attaching disks:

   yc compute instance attach-disk --help
   

2. Get a list of VMs in the default folder:

   yc compute instance list
   

   Result:

   +----------------------+-----------------+---------------+---------+----------------------+
   |          ID          |       NAME      |    ZONE ID    | STATUS  |     DESCRIPTION      |
   +----------------------+-----------------+---------------+---------+----------------------+
   | fhm0b28lgfp4******** | first-instance  | ru-central1-a | RUNNING | my first vm via CLI  |
   | fhm9gk85nj7g******** | second-instance | ru-central1-a | RUNNING | my second vm via CLI |
   +----------------------+-----------------+---------------+---------+----------------------+
   

3. Select ID or NAME of the VM, e.g., first-instance.

4. Get a list of disks in the default folder:

   yc compute disk list
   

   Result:

   +----------------------+--------------+-------------+-------------------+--------+----------------------+-----------------+-------------+
   |          ID          |     NAME     |    SIZE     |       ZONE        | STATUS |     INSTANCE IDS     | PLACEMENT GROUP | DESCRIPTION |
   +----------------------+--------------+-------------+-------------------+--------+----------------------+-----------------+-------------+
   | a7lqgbt0bb9s******** | first-disk   | 20401094656 |   ru-central1-a   | READY  | a7lcvu28njbh******** |                 |             |
   | a7lv5j5hm1p1******** | second-disk  | 21474836480 |   ru-central1-a   | READY  |                      |                 |             |
   +----------------------+--------------+-------------+-------------------+--------+----------------------+-----------------+-------------+
   

5. Select ID or NAME of the disk, e.g., first-disk. To view a list of disks attached to the VM, run this command:

   yc compute instance get --full first-instance
   

6. Attach the disk to the VM:

   yc compute instance attach-disk first-instance \
     --disk-name first-disk \
     --mode rw
   

   To automatically delete the disk when deleting the VM, set the --auto-delete flag.

   Note

   Empty disks do not have a file system. If you are attaching an empty disk, partition and mount it manually. Alternatively, rather than attaching an empty disk, you can create a snapshot of the boot disk and use it to create a VM.

   If an error occurs, stop the VM:

   yc compute instance stop first-instance
   

   Then, try to attach the disk once again.

7. If the VM was stopped, restart it:

   yc compute instance start first-instance
   

With Terraform, you can quickly create a cloud infrastructure in Yandex Cloud and manage it using configuration files. These files store the infrastructure description written in HashiCorp Configuration Language (HCL). If you change the configuration files, Terraform automatically detects which part of your configuration is already deployed, and what should be added or removed.

Terraform is distributed under the Business Source License. The Yandex Cloud provider for Terraform is distributed under the MPL-2.0 license.

For more information about the provider resources, see the documentation on the Terraform website or mirror website.

If you do not have Terraform yet, install it and configure its Yandex Cloud provider.

1. If you have already created a secondary disk, get its ID.

2. Open the Terraform configuration file with the description of the VM you want to attach the secondary disk to. See an example of the VM configuration file.

3. Depending on whether the secondary disk is already created, follow these steps:

   • If the disk is already created, add the secondary_disk parameter to the yandex_compute_instance resource description section and specify the secondary disk ID in the disk_id value:

     resource "yandex_compute_instance" "vm-1" {
        ...
        secondary_disk {
           disk_id = "<disk_ID>"
        }
        ...
     }
     

   • If the disk is not created, add a new section with the yandex_compute_disk resource description to the configuration file, add the secondary_disk parameter to the yandex_compute_instance resource description section, and specify the link to the ID of the created secondary disk in the disk_id value:

     resource "yandex_compute_disk" "secondary-disk-1" {
         name     = "secondary-disk-1"
         type     = "network-hdd"
         zone     = "<availability_zone>"
         size     = "<disk_size>"
     }
     
     resource "yandex_compute_instance" "vm-1" {
        ...
        secondary_disk {
           disk_id = yandex_compute_disk.secondary-disk-1.id
        }
        ...
     }
     

   Note

   The secondary disk and VM must be in the same availability zone.

   For more information about the yandex_compute_disk resource parameters, see this Terraform article.

4. Create the resources:

   1. In the terminal, change to the folder where you edited the configuration file.

   2. Make sure the configuration file is correct using the command:

      terraform validate
      

      If the configuration is correct, the following message is returned:

      Success! The configuration is valid.
      

   3. Run the command:

      terraform plan
      

      The terminal will display a list of resources with parameters. No changes are made at this step. If the configuration contains errors, Terraform will point them out.

   4. Apply the configuration changes:

      terraform apply
      

   5. Confirm the changes: type yes in the terminal and press Enter.

   Terraform will create all the required resources. You can check the new resources using the management console.

Use the attachDisk REST API method for the Instance resource or the InstanceService/AttachDisk gRPC API call.

1. Connect to the VM via RDP.

2. Run Computer Management (the compmgmt.msc snap-in) as an administrator.

3. Under Storage, select Disk Management.

   Note

   When you attach a disk to a running VM, it might not appear in the list. In that case, restart the OS and repeat the steps in this guide.

4. If the attached disk is Offline, right-click it and select Online.

5. Assign a drive letter to the attached disk, if required. To learn how to do this, see the relevant Microsoft documentation.

6. Open Explorer to check that the attached disk is properly mounted and available.

1. Connect to the VM via RDP.

2. Run Computer Management (the compmgmt.msc snap-in) as an administrator.

3. Under Storage, select Disk Management.

   Note

   When you attach a disk to a running VM, it might not appear in the list. In that case, restart the OS and repeat the steps in this guide.

4. If the attached disk is Offline, right-click it and select Online.

5. Initialize the disk. To do this, right-click it and select Initialize Disk. This will open the Initialize Disk dialog box.

6. Select the partition style and click OK.

7. Create partitions on the disk. To do this, right-click an empty disk and select New Simple Volume.

8. Use the New Simple Volume Wizard to set the partition size, assign a drive letter, and specify the file system type.

9. Open Explorer to check that the attached disk is properly mounted and available.