You can call this operation to query resources in a zone. For example, you can query the most recent resource list before creating an ECS instance (RunInstances) or modifying instance specifications (ModifyInstanceSpec) in a zone.

Description

Values for the DestinationResource parameter have dependencies. When you select a value in the following chain for the DestinationResource parameter, the more to the right the selected value is ordered, the more parameters you must specify.

  • Sequence: Zone > IoOptimized > InstanceType = Network = ddh > SystemDisk > DataDisk
  • For example:
    • If you set DestinationResource to DataDisk, you must specify the IoOptimized, InstanceType, SystemDiskCategory, and DataDiskCategory parameters.
    • If you set DestinationResource to InstanceType, you must specify the IoOptimized and InstanceType parameters.
    • Query the ecs.g5.large resources in all zones of the China (Hangzhou) region: RegionId=cn-hangzhou &DestinationResource=InstanceType &IoOptimized=optimized &InstanceType=ecs.g5.large
    • Query the zones where ecs.g5.large resources are available within the China (Hangzhou) region: RegionId=cn-hangzhou &DestinationResource=Zone &IoOptimized=optimized &InstanceType=ecs.g5.large

Debugging

OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request parameters

Parameter Type Required Example Description
Action String No DescribeAvailableResource

The operation that you want to perform. If you use a custom HTTP URL or HTTPS URL to make an API request, you must specify the Action parameter. Set the value to DescribeAvailableResource.

DestinationResource String Yes InstanceType

The resource types to be queried. Valid values:

  • Zone
  • IoOptimized
  • InstanceType
  • SystemDisk
  • DataDisk
  • Network
  • ddh

For more information about how to set the DestinationResource parameter, see the preceding Description section.

RegionId String Yes cn-hangzhou

The ID of the region for which to query resources. You can call the DescribeRegions operation to query the most recent region list.

ZoneId String No cn-hangzhou-e

The ID of the zone for which to query resources.

Default value: null, indicating that the system returns resources which match the other criteria of all zones within the region specified by RegionId.

InstanceChargeType String No PrePaid

The billing method of resources. For more information, see Billing overview. Valid values:

  • PrePaid: subscription
  • PostPaid: pay-as-you-go

Default value: PostPaid.
SpotStrategy String No NoSpot

The preemption policy for the preemptible or pay-as-you-go instance. Valid values:

  • NoSpot: the regular pay-as-you-go instance
  • SpotWithPriceLimit: the preemptible instance with a user-defined maximum hourly price
  • SpotAsPriceGo: the preemptible instance priced at the market price at the time of purchase

Default value: NoSpot.

The SpotStrategy parameter takes effect only when the InstanceChargeType parameter is set to PostPaid.

IoOptimized String No optimized

Specifies whether the instance is I/O optimized. Valid values:

  • none
  • optimized

Default value: optimized.
DedicatedHostId String No dh-dedicatedhostid

The ID of the dedicated host.
InstanceType String No ecs.g5.large

The instance type. For more information, see Instance type families or call the DescribeInstanceTypes operation to query the most recent instance type list.

When the DestinationResource parameter is set to SystemDisk or DataDisk, the InstanceType parameter is required.

SystemDiskCategory String No cloud_ssd

The category of the system disk. Valid values:

  • cloud: basic disk
  • cloud_efficiency: ultra disk
  • cloud_ssd: standard SSD
  • ephemeral_ssd: local SSD
  • cloud_essd: enhanced SSD (ESSD)

When the DestinationResource parameter is set to SystemDisk, InstanceType, or DataDisk, the SystemDiskCategory parameter is optional.

Default value: cloud_efficiency.
DataDiskCategory String No cloud_ssd

The category of the data disk. Valid values:

  • cloud: basic disk
  • cloud_efficiency: ultra disk
  • cloud_ssd: standard SSD
  • ephemeral_ssd: local SSD
  • cloud_essd: enhanced SSD (ESSD)
NetworkCategory String No vpc

The type of the network. Valid values:

  • vpc: VPC
  • classic: classic network
Cores Integer No 2

The number of vCPU cores of the instance type. For more information, see Instance type families.

The Cores parameter takes effect only when the DestinationResource parameter is set to InstanceType.

Memory Float No 8.0

The memory size of the instance type. Unit: GiB. For more information, see Instance type families.

The Memory parameter takes effect only when the DestinationResource parameter is set to InstanceType.

ResourceType String No Instance

The type of the resource. Valid values:

  • instance
  • disk
  • reservedinstance
  • ddh

Response parameters

Parameter Type Example Description
AvailableZones Array

An array of zones.
AvailableZone
AvailableResources Array

An array of available resource types.
AvailableResource
SupportedResources Array

An array of supported resource types.
SupportedResource
Max Integer 2

The maximum number of resources of a specific type that can be created. No value is returned when this parameter is null.

Min Integer 1

The minimum value of resources of a specific type that can be created. No value is returned when the parameter is null.

Status String Available

The status of the resource. Valid values:

  • Available
  • SoldOut
StatusCategory String WithStock

The resource category based on the stock. Valid values:

  • WithStock: The resource is in sufficient stock.
  • ClosedWithStock: The resource is in low stock. We recommend that you use resources in sufficient stock.
  • WithoutStock: There is no stock of the resource, and the resource will be replenished. We recommend that you use resources in sufficient stock.
  • ClosedWithoutStock: There is no stock of the resource, and the resource will not be replenished. We recommend that you use resources in sufficient stock.
Unit String null

The unit of the resource type. No value is returned when the parameter is null.
Value String ecs.d1ne.xlarge

The value of the resource.
Type String InstanceType

The type of the resource. Valid values:

  • Zone
  • IoOptimized
  • InstanceType
  • SystemDisk
  • DataDisk
  • Network
  • ddh
RegionId String cn-hangzhou

The ID of the region.
Status String Available

The status of the resource. Valid values:

  • Available
  • SoldOut
StatusCategory String WithStock

The resource category based on the stock. Valid values:

  • WithStock: The resource is in sufficient stock.
  • ClosedWithStock: The resource is in low stock. We recommend that you use resources in sufficient stock.
  • WithoutStock: There is no stock of the resource, and the resource will be replenished. We recommend that you use resources in sufficient stock.
  • ClosedWithoutStock: There is no stock of the resource, and the resource will not be replenished. We recommend that you use resources in sufficient stock.
ZoneId String cn-hangzhou-e

The ID of the zone.
RequestId String 473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E

The ID of the request.

Examples

Sample requests

https://ecs.aliyuncs.com/?Action=DescribeAvailableResource
&RegionId=cn-hangzhou
&DestinationResource=InstanceType
&IoOptimized=optimized
&InstanceType=ecs.g5.large
&<Common request parameters>

Sample success responses

XML format 

<DescribeAvailableResourceResponse>
      <RequestId>0041D94C-FB92-4C49-B115-259DA1CE1923</RequestId>
      <AvailableZones>
            <AvailableZone>
                  <Status>Available</Status>
                  <RegionId>cn-hangzhou</RegionId>
                  <AvailableResources>
                        <AvailableResource>
                              <Type>InstanceType</Type>
                              <SupportedResources>
                                    <SupportedResource>
                                          <Status>Available</Status>
                                          <Value>ecs.g5.large</Value>
                                          <StatusCategory>WithStock</StatusCategory>
                                    </SupportedResource>
                              </SupportedResources>
                        </AvailableResource>
                  </AvailableResources>
                  <ZoneId>cn-hangzhou-i</ZoneId>
                  <StatusCategory>WithStock</StatusCategory>
            </AvailableZone>
      </AvailableZones>
</DescribeAvailableResourceResponse>

JSON format 

{
	"RequestId": "0041D94C-FB92-4C49-B115-259DA1CE1923",
	"AvailableZones": {
		"AvailableZone": [
			{
				"Status": "Available",
				"RegionId": "cn-hangzhou",
				"AvailableResources": {
					"AvailableResource": [
						{
							"Type": "InstanceType",
							"SupportedResources": {
								"SupportedResource": [
									{
										"Status": "Available",
										"Value": "ecs.g5.large",
										"StatusCategory": "WithStock"
									}
								]
							}
						}
					]
				},
				"ZoneId": "cn-hangzhou-i",
				"StatusCategory": "WithStock"
			}
		]
	}
}

Error codes

HTTP status code Error code Error message Description
404 Invalid.RegionId The specified RegionId does not exist. The error message returned because the specified RegionId parameter does not exist.
404 Unavailable.Regions The available regions does not exists The error message returned because the specified RegionId parameter is invalid.
400 Invalid.InstanceChargeType The specified InstanceChargeType is not valid. The error message returned because the specified InstanceChargeType parameter is invalid.
400 Invalid.Param The input parameter DestinationResource that is mandatory for processing this request is not supplied. The error message returned because the required DestinationResource parameter is not specified.
404 Invalid.ResourceType The ResourceType provided does not exist in our records. The error message returned because the specified ResourceType parameter is invalid.
404 Invalid.DestinationResource The specified DestinationResource is not valid. The error message returned because the specified DestinationResource parameter is invalid.
404 Invalid.IoOptimized The specified IoOptimized is not valid. The error message returned because the specified IoOptimized parameter is invalid.
404 Invalid.NetworkCategory The specified NetworkCategory is not valid. The error message returned because the specified NetworkCategory parameter is invalid.
404 Invalid.SpotStrategy The specified SpotStrategy is not valid. The error message returned because the specified SpotStrategy parameter is invalid.
403 InvalidDedicatedHostId.NotFound The specified DedicatedHostId does not exist. The error message returned because the specified dedicated host ID does not exist.
404 Invalid.NetworkType The specified NetworkType is not valid. The error message returned because the specified NetworkType parameter is invalid.
404 InvalidResourceId.NotFound The specified ResourceId is not found in our records The error message returned because the specified ResourceId parameter does not exist.
403 InvalidParam.TypeAndCpuMem.Conflict The specified 'InstanceType' and 'Cores','Memory' are not blank at the same time. The error message returned because none of the InstanceType, Cores, and Memory parameters are specified.
403 InvalidParam.Cores The specified parameter 'Cores' should be empty The error message returned because the Cores parameter is specified.
403 InvalidParam.Memory The specified parameter 'Memory' should be empty The error message returned because the Memory parameter is specified.
400 InvalidRegionId.MalFormed The specified parameter RegionId is not valid. The error message returned because the specified RegionId parameter is invalid.

For a list of error codes, visit the API Error Center.