Capacity Reservations - Get

Service:: Compute

API Version:: 2026-03-01

The operation that retrieves information about the capacity reservation.

GET https://management.azure.com/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/capacityReservationGroups/{capacityReservationGroupName}/capacityReservations/{capacityReservationName}?api-version=2026-03-01

With optional parameters:

GET https://management.azure.com/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/capacityReservationGroups/{capacityReservationGroupName}/capacityReservations/{capacityReservationName}?api-version=2026-03-01&$expand=instanceView

URI Parameters

Name	In	Required	Type	Description
capacityReservationGroupName	path	True	string	The name of the capacity reservation group.
capacityReservationName	path	True	string	The name of the capacity reservation.
resourceGroupName	path	True	string minLength: 1 maxLength: 90	The name of the resource group. The name is case insensitive.
subscriptionId	path	True	string minLength: 1	The ID of the target subscription.
api-version	query	True	string minLength: 1	The API version to use for this operation.
$expand	query		CapacityReservationInstanceViewTypes	The expand expression to apply on the operation. 'InstanceView' retrieves a snapshot of the runtime properties of the capacity reservation that is managed by the platform and can change outside of control plane operations.

Responses

Name	Type	Description
200 OK	CapacityReservation	Azure operation completed successfully.
Other Status Codes	CloudError	An unexpected error response.

Security

azure_auth

Azure Active Directory OAuth2 Flow.

Type: oauth2
Flow: implicit
Authorization URL: https://login.microsoftonline.com/common/oauth2/authorize

Scopes

Name	Description
user_impersonation	impersonate your user account

Examples

Get a block capacity reservation.

Get a capacity reservation.

Get a targeted capacity reservation.

Get a block capacity reservation.

Sample request

HTTP

GET https://management.azure.com/subscriptions/{subscriptionId}/resourceGroups/myResourceGroup/providers/Microsoft.Compute/capacityReservationGroups/blockCapacityReservationGroup/capacityReservations/blockCapacityReservation?api-version=2026-03-01&$expand=instanceView

Sample response

Status code:: 200

{
  "id": "/subscriptions/{subscription-id}/resourceGroups/myResourceGroup/providers/Microsoft.Compute/capacityReservationGroups/blockCapacityReservationGroup/capacityReservations/blockCapacityReservation",
  "properties": {
    "platformFaultDomainCount": 3,
    "reservationId": "{GUID}",
    "provisioningTime": "2021-06-27T01:02:38.3138469+00:00",
    "virtualMachinesAssociated": [
      {
        "id": "/subscriptions/{subscription-id}/resourceGroups/myResourceGroup/providers/Microsoft.Compute/virtualMachines/myVM1"
      },
      {
        "id": "/subscriptions/{subscription-id}/resourceGroups/myResourceGroup/providers/Microsoft.Compute/virtualMachines/myVM2"
      },
      {
        "id": "/subscriptions/{subscription-id}/resourceGroups/myResourceGroup/providers/Microsoft.Compute/virtualMachines/myVM3"
      }
    ],
    "provisioningState": "Succeeded",
    "instanceView": {
      "utilizationInfo": {
        "currentCapacity": 5,
        "virtualMachinesAllocated": [
          {
            "id": "/subscriptions/{subscription-id}/resourceGroups/myResourceGroup/providers/Microsoft.Compute/virtualMachines/myVM1"
          },
          {
            "id": "/subscriptions/{subscription-id}/resourceGroups/myResourceGroup/providers/Microsoft.Compute/virtualMachines/myVM2"
          }
        ]
      },
      "statuses": [
        {
          "code": "ProvisioningState/succeeded",
          "level": "Info",
          "displayStatus": "Provisioning succeeded"
        }
      ]
    },
    "scheduleProfile": {
      "start": "2025-08-01T12:00:00Z",
      "end": "2025-08-02T11:30:00Z"
    },
    "timeCreated": "2021-06-27T01:02:38.3138469+00:00"
  },
  "location": "westus",
  "tags": {
    "department": "HR"
  },
  "sku": {
    "name": "Standard_ND96isr_H100_v5",
    "capacity": 1
  },
  "zones": [
    "1"
  ],
  "name": "blockCapacityReservation"
}

Get a capacity reservation.

Sample request

HTTP

GET https://management.azure.com/subscriptions/{subscriptionId}/resourceGroups/myResourceGroup/providers/Microsoft.Compute/capacityReservationGroups/myCapacityReservationGroup/capacityReservations/myCapacityReservation?api-version=2026-03-01&$expand=instanceView

Sample response

Status code:: 200

{
  "id": "/subscriptions/{subscription-id}/resourceGroups/myResourceGroup/providers/Microsoft.Compute/capacityReservationGroups/myCapacityReservationGroup/capacityReservations/myCapacityReservation",
  "properties": {
    "platformFaultDomainCount": 3,
    "reservationId": "{GUID}",
    "provisioningTime": "2021-06-27T01:02:38.3138469+00:00",
    "virtualMachinesAssociated": [
      {
        "id": "/subscriptions/{subscription-id}/resourceGroups/myResourceGroup/providers/Microsoft.Compute/virtualMachines/myVM1"
      },
      {
        "id": "/subscriptions/{subscription-id}/resourceGroups/myResourceGroup/providers/Microsoft.Compute/virtualMachines/myVM2"
      },
      {
        "id": "/subscriptions/{subscription-id}/resourceGroups/myResourceGroup/providers/Microsoft.Compute/virtualMachines/myVM3"
      }
    ],
    "provisioningState": "Succeeded",
    "instanceView": {
      "utilizationInfo": {
        "currentCapacity": 5,
        "virtualMachinesAllocated": [
          {
            "id": "/subscriptions/{subscription-id}/resourceGroups/myResourceGroup/providers/Microsoft.Compute/virtualMachines/myVM1"
          },
          {
            "id": "/subscriptions/{subscription-id}/resourceGroups/myResourceGroup/providers/Microsoft.Compute/virtualMachines/myVM2"
          }
        ]
      },
      "statuses": [
        {
          "code": "ProvisioningState/succeeded",
          "level": "Info",
          "displayStatus": "Provisioning succeeded"
        }
      ]
    },
    "timeCreated": "2021-06-27T01:02:38.3138469+00:00"
  },
  "location": "westus",
  "tags": {
    "department": "HR"
  },
  "sku": {
    "name": "Standard_DS1_v2",
    "capacity": 4
  },
  "zones": [
    "1"
  ],
  "name": "myCapacityReservation"
}

Get a targeted capacity reservation.

Sample request

HTTP

GET https://management.azure.com/subscriptions/{subscriptionId}/resourceGroups/myResourceGroup/providers/Microsoft.Compute/capacityReservationGroups/targetedCapacityReservationGroup/capacityReservations/targetedCapacityReservation?api-version=2026-03-01&$expand=instanceView

Sample response

Status code:: 200

{
  "id": "/subscriptions/{subscription-id}/resourceGroups/myResourceGroup/providers/Microsoft.Compute/capacityReservationGroups/targetedCapacityReservationGroup/capacityReservations/targetedCapacityReservation",
  "properties": {
    "platformFaultDomainCount": 3,
    "reservationId": "{GUID}",
    "provisioningTime": "2021-06-27T01:02:38.3138469+00:00",
    "virtualMachinesAssociated": [
      {
        "id": "/subscriptions/{subscription-id}/resourceGroups/myResourceGroup/providers/Microsoft.Compute/virtualMachines/myVM1"
      },
      {
        "id": "/subscriptions/{subscription-id}/resourceGroups/myResourceGroup/providers/Microsoft.Compute/virtualMachines/myVM2"
      },
      {
        "id": "/subscriptions/{subscription-id}/resourceGroups/myResourceGroup/providers/Microsoft.Compute/virtualMachines/myVM3"
      }
    ],
    "provisioningState": "Succeeded",
    "instanceView": {
      "utilizationInfo": {
        "currentCapacity": 5,
        "virtualMachinesAllocated": [
          {
            "id": "/subscriptions/{subscription-id}/resourceGroups/myResourceGroup/providers/Microsoft.Compute/virtualMachines/myVM1"
          },
          {
            "id": "/subscriptions/{subscription-id}/resourceGroups/myResourceGroup/providers/Microsoft.Compute/virtualMachines/myVM2"
          }
        ]
      },
      "statuses": [
        {
          "code": "ProvisioningState/succeeded",
          "level": "Info",
          "displayStatus": "Provisioning succeeded"
        }
      ]
    },
    "timeCreated": "2021-06-27T01:02:38.3138469+00:00"
  },
  "location": "westus",
  "tags": {
    "department": "HR"
  },
  "sku": {
    "name": "Standard_DS1_v2",
    "capacity": 4
  },
  "zones": [
    "1"
  ],
  "name": "targetedCapacityReservation"
}

Definitions

Name	Description
ApiError	Api error.
ApiErrorBase	Api error base.
CapacityReservation	Specifies information about the capacity reservation.
CapacityReservationInstanceView	The instance view of a capacity reservation that provides as snapshot of the runtime properties of the capacity reservation that is managed by the platform and can change outside of control plane operations.
CapacityReservationInstanceViewTypes
CapacityReservationUtilization	Represents the capacity reservation utilization in terms of resources allocated.
CloudError	An error response from the Compute service.
createdByType	The type of identity that created the resource.
InnerError	Inner error details.
InstanceViewStatus	Instance view status.
ScheduleProfile	Defines the schedule for Block-type capacity reservations. Specifies the schedule during which capacity reservation is active and VM or VMSS resource can be allocated using reservation. This property is required and only supported when the capacity reservation group type is 'Block'. The scheduleProfile, start, and end fields are immutable after creation. Minimum API version: 2025-04-01. Please refer to https://aka.ms/blockcapacityreservation for more details.
Sku	Describes a virtual machine scale set sku. NOTE: If the new VM SKU is not supported on the hardware the scale set is currently on, you need to deallocate the VMs in the scale set before you modify the SKU name.
StatusLevelTypes	The level code.
SubResourceReadOnly
systemData	Metadata pertaining to creation and last modification of the resource.

ApiError

Object

Api error.

Name	Type	Description
code	string	The error code.
details	ApiErrorBase[]	The Api error details
innererror	InnerError	The Api inner error
message	string	The error message.
target	string	The target of the particular error.

ApiErrorBase

Object

Api error base.

Name	Type	Description
code	string	The error code.
message	string	The error message.
target	string	The target of the particular error.

CapacityReservation

Object

Specifies information about the capacity reservation.

Name	Type	Description
id	string	Fully qualified resource ID for the resource. Ex - /subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/{resourceProviderNamespace}/{resourceType}/{resourceName}
location	string	The geo-location where the resource lives
name	string	The name of the resource
properties.instanceView	CapacityReservationInstanceView	The Capacity reservation instance view.
properties.platformFaultDomainCount	integer (int32)	Specifies the value of fault domain count that Capacity Reservation supports for requested VM size. Note: The fault domain count specified for a resource (like virtual machines scale set) must be less than or equal to this value if it deploys using capacity reservation. Minimum api-version: 2022-08-01.
properties.provisioningState	string	The provisioning state, which only appears in the response.
properties.provisioningTime	string (date-time)	The date time when the capacity reservation was last updated.
properties.reservationId	string	A unique id generated and assigned to the capacity reservation by the platform which does not change throughout the lifetime of the resource.
properties.scheduleProfile	ScheduleProfile	Defines the schedule for Block-type capacity reservations. Specifies the schedule during which capacity reservation is active and VM or VMSS resource can be allocated using reservation. This property is required and only supported when the capacity reservation group type is 'Block'. The scheduleProfile, start, and end fields are immutable after creation. Minimum API version: 2025-04-01. Please refer to https://aka.ms/blockcapacityreservation for more details.
properties.timeCreated	string (date-time)	Specifies the time at which the Capacity Reservation resource was created. Minimum api-version: 2021-11-01.
properties.virtualMachinesAssociated	SubResourceReadOnly[]	A list of all virtual machine resource ids that are associated with the capacity reservation.
sku	Sku	SKU of the resource for which capacity needs be reserved. The SKU name and capacity is required to be set. For Block capacity reservations, sku.capacity can only accept values 1, 2, 4, 8, 16, 32, 64. Currently VM Skus with the capability called 'CapacityReservationSupported' set to true are supported. When 'CapacityReservationSupported' is true, the SKU capability also specifies the 'SupportedCapacityReservationTypes', which lists the types of capacity reservations (such as Targeted or Block) that the SKU supports. Refer to List Microsoft.Compute SKUs in a region (https://docs.microsoft.com/rest/api/compute/resourceskus/list) for supported values.
systemData	systemData	Azure Resource Manager metadata containing createdBy and modifiedBy information.
tags	object	Resource tags.
type	string	The type of the resource. E.g. "Microsoft.Compute/virtualMachines" or "Microsoft.Storage/storageAccounts"
zones	string[]	The availability zones.

CapacityReservationInstanceView

Object

The instance view of a capacity reservation that provides as snapshot of the runtime properties of the capacity reservation that is managed by the platform and can change outside of control plane operations.

Name	Type	Description
statuses	InstanceViewStatus[]	The resource status information.
utilizationInfo	CapacityReservationUtilization	Unutilized capacity of the capacity reservation.

CapacityReservationInstanceViewTypes

Enumeration

Value	Description
instanceView

CapacityReservationUtilization

Object

Represents the capacity reservation utilization in terms of resources allocated.

Name	Type	Description
currentCapacity	integer (int32)	The value provides the current capacity of the VM size which was reserved successfully and for which the customer is getting billed. Minimum api-version: 2022-08-01.
virtualMachinesAllocated	SubResourceReadOnly[]	A list of all virtual machines resource ids allocated against the capacity reservation.

CloudError

Object

An error response from the Compute service.

Name	Type	Description
error	ApiError	Api error.

createdByType

Enumeration

The type of identity that created the resource.

Value	Description
User
Application
ManagedIdentity
Key

InnerError

Object

Inner error details.

Name	Type	Description
errordetail	string	The internal error message or exception dump.
exceptiontype	string	The exception type.

InstanceViewStatus

Object

Instance view status.

Name	Type	Description
code	string	The status code.
displayStatus	string	The short localizable label for the status.
level	StatusLevelTypes	The level code.
message	string	The detailed status message, including for alerts and error messages.
time	string (date-time)	The time of the status.

ScheduleProfile

Object

Defines the schedule for Block-type capacity reservations. Specifies the schedule during which capacity reservation is active and VM or VMSS resource can be allocated using reservation. This property is required and only supported when the capacity reservation group type is 'Block'. The scheduleProfile, start, and end fields are immutable after creation. Minimum API version: 2025-04-01. Please refer to https://aka.ms/blockcapacityreservation for more details.

Name	Type	Description
end	string	The required end date for block capacity reservations. Must be after the start date, with a duration of either 1–14 whole days or 3–26 whole weeks. Example: 2025-06-28.
start	string	The required start date for block capacity reservations. Must be today or within 56 days in the future. For same-day scheduling, requests must be submitted before 11:30 AM UTC. Example: 2025-06-27.

Sku

Object

Describes a virtual machine scale set sku. NOTE: If the new VM SKU is not supported on the hardware the scale set is currently on, you need to deallocate the VMs in the scale set before you modify the SKU name.

Name	Type	Description
capacity	integer (int64)	Specifies the number of virtual machines in the scale set.
name	string	The sku name.
tier	string	Specifies the tier of virtual machines in a scale set. Possible Values: Standard Basic

StatusLevelTypes

Enumeration

The level code.

Value	Description
Info
Warning
Error

SubResourceReadOnly

Object

Name	Type	Description
id	string	Resource Id

systemData

Object

Metadata pertaining to creation and last modification of the resource.

Name	Type	Description
createdAt	string (date-time)	The timestamp of resource creation (UTC).
createdBy	string	The identity that created the resource.
createdByType	createdByType	The type of identity that created the resource.
lastModifiedAt	string (date-time)	The timestamp of resource last modification (UTC)
lastModifiedBy	string	The identity that last modified the resource.
lastModifiedByType	createdByType	The type of identity that last modified the resource.