You can call this operation to query resources in a zone. For example, you can query available resources in a zone before you create ECS instances (RunInstances) or before you modify instance types (ModifyInstanceSpec).

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
  • Examples:
    • If you set DestinationResource to DataDisk, you must specify the InstanceType parameter.
    • If you set DestinationResource to InstanceType, you must specify the IoOptimized and InstanceType parameters.
    • If you want to query the available ecs.g5.large resources in all zones of the China (Hangzhou) region, you must set RegionId to cn-hangzhou, DestinationResource to InstanceType, IoOptimized to optimized, and InstanceType to ecs.g5.large.
    • If you want to query the zones where ecs.g5.large resources are available within the China (Hangzhou) region, you must set RegionId to cn-hangzhou, DestinationResource to Zone, IoOptimized to optimized, and InstanceType to 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 Yes DescribeAvailableResource

The operation that you want to perform. Set the value to DescribeAvailableResource.
DestinationResource String Yes InstanceType

The resource type to be queried. Valid values:

  • Zone: zone
  • IoOptimized: I/O optimized
  • InstanceType: instance type
  • SystemDisk: system disk
  • DataDisk: data disk
  • Network: network type
  • ddh: dedicated host

For more information about how to set the DestinationResource parameter, see the "Description" section in this topic.

RegionId String Yes cn-hangzhou

The region ID. You can call the DescribeRegions operation to query the most recent region list.

ZoneId String No cn-hangzhou-e

The zone ID.

This parameter is empty by default. When this parameter is empty, the system returns resources that match the other filter conditions of all zones within the region specified by RegionId.

InstanceChargeType String No PrePaid

The billing method of the resource. 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 instance is a regular pay-as-you-go instance.
  • SpotWithPriceLimit: The instance is created with a maximum hourly price.
  • SpotAsPriceGo: The instance is of the market price at the time of purchase.

Default value: NoSpot.

This 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: non-I/O optimized
  • optimized: I/O optimized

Default value: optimized.
DedicatedHostId String No dh-bp165p6xk2tlw61e****

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 DestinationResource 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: ESSD
NetworkCategory String No vpc

The network type. Valid values:

  • vpc
  • classic
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 resource type. Valid values:

  • instance: ECS instance
  • disk: cloud disk
  • reservedinstance: reserved instance
  • ddh: dedicated host

Response parameters

Parameter Type Example Description
AvailableZones Array of AvailableZone

An array consisting of zones.
AvailableZone
AvailableResources Array of AvailableResource

An array consisting of available resource types.
AvailableResource
SupportedResources Array of SupportedResource

An array consisting of available 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 empty.

Min Integer 1

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

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: Resources are in sufficient stock.
  • ClosedWithStock: Resources are insufficient. We recommend that you use resources in sufficient stock.
  • WithoutStock: Resources are sold out and will be replenished. We recommend that you use resources in sufficient stock.
  • ClosedWithoutStock: Resources are sold out and 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 empty.
Value String ecs.d1ne.xlarge

The value of the resource.
Type String InstanceType

The types of the resources. Valid values:

  • Zone: zone
  • IoOptimized: I/O optimized
  • InstanceType: instance type
  • SystemDisk: system disk
  • DataDisk: data disk
  • Network: network type
  • ddh: dedicated host
RegionId String cn-hangzhou

The region ID.
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: Resources are in sufficient stock.
  • ClosedWithStock: Resources are insufficient. We recommend that you use resources in sufficient stock.
  • WithoutStock: Resources are sold out and will be replenished. We recommend that you use resources in sufficient stock.
  • ClosedWithoutStock: Resources are sold out and will not be replenished.We recommend that you use resources in sufficient stock.
ZoneId String cn-hangzhou-e

The zone ID.
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 is invalid.
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 specified DestinationResource parameter is invalid.
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 DedicatedHostId parameter 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 is invalid. Check whether the resource exists.
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.