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Creating a VM on a dedicated host

Written by
Updated at May 5, 2025

The VM you create will be linked to the host selected from a group of dedicated hosts. Once stopped, the VM becomes unavailable on the host, but it will be linked to the same host when you restart it.

If you do not have a group of dedicated hosts yet, create one.

To create 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. Get the ID of the dedicated host group to create your VM in:

    yc compute host-group list

    Result:

    +------------------------------+-------+--------------+-------+---------------+
|              ID              | CORES |    MEMORY    | DISKS |   DISK SIZE   |
+------------------------------+-------+--------------+-------+---------------+
...
| intel-6338-c108-m704-n3200x6 |   108 | 755914244096 |     6 | 3198924357632 |
+------------------------------+-------+--------------+-------+---------------+

  2. Retrieve the ID of the group's dedicated host to create your VM on:

    yc compute host-group list-hosts <dedicated_host_group_ID>

    Result:

    +----------------------+----------------------+
|          ID          |      SERVER ID       |
+----------------------+----------------------+
| fhm1ab2mhnf3******** | fhmlabct12vp******** |
| fhmabcun12kb******** | fhm1a2bcsl13******** |
+----------------------+----------------------+

  3. Get a list of available subnets:

    yc vpc subnet list

    Result:

    +----------------------+-----------------------+----------------------+----------------+---------------+-----------------+
|          ID          |         NAME          |      NETWORK ID      | ROUTE TABLE ID |     ZONE      |      RANGE      |
+----------------------+-----------------------+----------------------+----------------+---------------+-----------------+
| b0c6n43f9lgh******** | default-ru-central1-d | enpe3m3fa00u******** |                | ru-central1-d | [10.130.0.0/24] |
| e2l2da8a20b3******** | default-ru-central1-b | enpe3m3fa00u******** |                | ru-central1-b | [10.129.0.0/24] |
| e9bnlm18l70a******** | default-ru-central1-a | enpe3m3fa00u******** |                | ru-central1-a | [10.128.0.0/24] |
+----------------------+-----------------------+----------------------+----------------+---------------+-----------------+

  4. Run this command to create a VM:

    yc compute instance create \
  --host-id <dedicated_host_ID> \
  --zone <availability_zone> \
  --platform <platform_ID> \
  --network-interface subnet-name=<subnet_name> \
  --attach-local-disk size=<disk_size>

    Where:

    • --host-id: Dedicated host ID.

    • --zone: Availability zone where the group of dedicated hosts resides.

    • --platform: Platform. It must match the platform of the dedicated host group:

      • standard-v3: For hosts based on Intel® Ice Lake.
      • standard-v2: For archived hosts based on Intel Cascade Lake.

    • --network-interface: VM network interface description:

      • subnet-name: Name of the subnet in the availability zone.

    • --attach-local-disk: Properties of the local disk being attached to the VM:

      • size: Disk size in bytes. You can find the possible values in the list of dedicated host types and the yc compute host-type list command output. For example, for the intel-6338-c108-m704-n3200x6 host type, specify 3198924357632 (~ 2.91 TB). You cannot set a size different from the host disk size.

      The --attach-local-disk parameter is optional. To attach multiple local disks, specify this parameter as many times as needed. For more information, see Local and network disks.

    To specify other VM properties, use the yc compute instance create command parameters as described in the CLI reference. For more information, see VMs in Compute Cloud and Creating a VM.

    Result:

    done (41s)
id: fhm1abc23407********
folder_id: m4n56op78mev********
created_at: "2020-10-13T08:00:55Z"
zone_id: ru-central1-a
...
placement_policy:
  host_affinity_rules:
  - key: yc.hostId
    op: IN
    values:
    - fhm1ab2mhnf3********
  1. Get the ID of the dedicated host group using the list REST API method for the HostGroup resource or the HostGroupService/List gRPC API call.
  2. Get the IDs of dedicated hosts in the group using the listHosts REST API method for the HostGroup resource or the HostGroupService/ListHosts gRPC API call.
  3. Create a VM using the create REST API method for the Instance resource or the InstanceService/Create gRPC API call.

If you attached local disks to your VM, partition and mount them after the VM is created.

Example of creating a VM with a local disk on a dedicated host

Before creating a VM:

  1. Create a dedicated host group and get its ID using the yc compute host-group list CLI command.
  2. Get a list of IDs of dedicated hosts in the group using the yc compute host-group list-hosts CLI command.
  3. Generate a key pair to connect to your VM via SSH.

Create a VM with the following parameters:

  • Location: Dedicated host.
  • Platform: Intel Ice Lake.
  • Number of vCPUs: 64.
  • Amount of RAM: 704 GB.
  • Number of local disks: 1.
  • Local disk size: 3,198,924,357,632 B (~2.91 TB).
  • Operating system: Ubuntu 22.04 LTS.

To do this, follow these steps:

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.

Run this command to create a VM:

yc compute instance create \
  --cloud-id <cloud_ID> \
  --folder-id <folder_ID> \
  --zone <availability_zone> \
  --name <VM_name> \
  --platform standard-v3 \
  --cores 64 \
  --memory 704 \
  --host-id <dedicated_host_ID> \
  --network-interface subnet-id=<subnet_ID> \
  --attach-local-disk "size=3198924357632" \
  --ssh-key <path_to_public_SSH_key_file> \
  --create-boot-disk name=boot-disk,size=1000,image-folder-id=standard-images,image-family=ubuntu-2204-lts

Where:

  • --cloud-id: Cloud ID.

  • --folder-id: Folder ID.

  • --zone: Availability zone where the group of dedicated hosts resides.

  • --name: VM name.

  • --platform: VM platform.

  • --cores: Number of vCPUs.

  • --memory: Amount of RAM.

  • --host-id: Dedicated host ID.

  • --network-interface: VM network interface description:

    • subnet-id: ID of the subnet in the availability zone hosting the VM.

  • --attach-local-disk: Description of the local disk being attached:

    • size: Disk size.

  • --ssh-key: Public SSH key path. The VM will automatically create a user named yc-user for this key.

  • --create-boot-disk: Boot disk parameters.

Result:

done (20s)
id: fhmbdt1jj2k3********
folder_id: m4n56op78mev********
created_at: "2023-01-27T12:06:52Z"
zone_id: ru-central1-a
...
placement_policy:
  host_affinity_rules:
  - key: yc.hostId
    op: IN
    values:
    - fhm1ceqtmivg********

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