Resource relationships in Yandex Compute Cloud

All resources in Compute Cloud break down into three types:

• Basic resources, which include virtual machines and disks.
• Auxiliary resources, which include snapshots and images. These resources are only used for creating other resources.
• Information resources, such as disk types and availability zones. These resources are read-only.

In addition, when creating VMs, Compute Cloud uses resources of other services, such as subnets and folders.

Basic resourcesBasic resources

Compute Cloud allows you to create VMs and attach disks to them.

A VM must have at least one disk attached, which is a boot disk. You can create a new empty disk or restore one from a snapshot or image.

Auxiliary resourcesAuxiliary resources

Snapshots and images are mainly designed for saving and restoring data disks.

You can only create a snapshot from a disk. Snapshot information contains the ID of its source disk.

As for an image, you can create it from a disk, snapshot, another image, or file.

Information resourcesInformation resources

When creating disks and VMs, you need to specify the availability zone where they will reside; disk images and snapshots are not associated with any availability zones.

You can view a list of availability zones and find out their current status.

When creating a disk, you also specify the disk type. You can view possible disk types and find out in which zones they are available.

Relationship with resources of other servicesRelationship with resources of other services

When creating a VM, you need to specify the subnet it will be connected to. You can find more information about cloud networks here.

All Compute Cloud resources are created within folders. Disk types and availability zones are public resources that do not belong to any folder. You can learn more about the resource hierarchy in Yandex Cloud here.