Removing a disk from a placement group

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Updated at July 8, 2024

Remove a non-replicated disk from a placement group. You can then permanently delete the disk or add it back to the placement group.

Management console

Terraform

In the management console, select the folder where you want to remove a disk from a placement group.
Select Compute Cloud.
In the left-hand panel, select Placement groups.
Go to the Non-replicated disk placement groups tab.
Select the placement group to remove a disk from.
Go to the List of disks panel.
To the right of the name of the disk to remove, click and select Delete.
In the window that opens, click Delete.

Terraform allows you to quickly create a cloud infrastructure in Yandex Cloud and manage it using configuration files. Configuration files store the infrastructure description in the HashiCorp Configuration Language (HCL). Terraform and its providers are distributed under the Business Source License.

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

If you change the configuration files, Terraform automatically detects which part of your configuration is already deployed, and what should be added or removed.

If you don't have Terraform, install it and configure the Yandex Cloud provider.

To remove a non-replicated disk created with Terraform from a placement group:

Open the Terraform configuration file and delete the fragment describing the non-replicated disk.

Sample non-replicated disk description in the Terraform configuration

...
resource "yandex_compute_disk" "nr" {
  name       = "non-replicated-disk-name"
  size       = 93
  block_size = 4096
  type       = "network-ssd-nonreplicated"
  zone       = "ru-central1-b"

  disk_placement_policy {
    disk_placement_group_id = yandex_compute_disk_placement_group.this.id
  }
}

resource "yandex_compute_disk_placement_group" "this" {
  zone = "ru-central1-b"
}
...

In the command line, go to the directory with the Terraform configuration file.
Check the configuration using this command:
```
terraform validate
```
If the configuration is correct, you will get this message:
```
Success! The configuration is valid.
```
Run this command:
```
terraform plan
```
The terminal will display a list of resources with parameters. No changes will be made at this step. If the configuration contains any errors, Terraform will point them out.
Apply the configuration changes:
```
terraform apply
```
Confirm the changes: type yes into the terminal and press Enter.

You can check the update using the management console or this CLI command:
```
yc compute disk-placement-group get <disk_placement_group_name>
```

Removing a disk from a placement group

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