Views the resources available in a zone. For example, you can view the resource list before creating an ECS instance (RunInstances) in a zone.

Description

When you call this operation, note that:

  • When the ZoneId parameter is not specified, the system returns resources that match the other criteria of all zones within the region.
  • You can specify the DestinationResource parameter to retrieve different types of resources, and specify other parameters to refine your search. Options for the DestinationResource parameter have dependencies. When you select an option, the options to the left of the option in the chain are also required.
    • Sequence: (Zone) > IoOptimized > InstanceType > SystemDisk > DataDisk
    • Samples of parameter values in the sequence:
      • If you set the DestinationResource parameter to SystemDisk, you must specify the IoOptimized and InstanceType parameters.
      • If you set the DestinationResource parameter to InstanceType, you must specify the IoOptimized parameter.
      • If you set the DestinationResource parameter to DataDisk, you must specify the IoOptimized, InstanceType, and SystemDiskCategory parameters.

Debugging

You can use API Explorer to perform debugging. API Explorer allows you to perform various operations to simplify API usage. For example, you can retrieve APIs, call APIs, and dynamically generate SDK example code.

Request parameters

Name Type Required Example Description
DestinationResource String Yes InstanceType

The resource types to query. Valid values:

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

The ID of the target region. You can call DescribeRegions to view the latest regions of Alibaba Cloud.

Action String No DescribeAvailableResource

The operation that you want to perform. Set the value to DescribeAvailableResource.

Cores Integer No 2

The number of vCPU cores of the instance type. For more information, see Instance type families. The Cores parameter is valid only when the DestinationResource parameter is set to InstanceType.

DataDiskCategory String No cloud_ssd

The category of the data disk. Valid values:

  • cloud: basic disk
  • cloud_efficiency: ultra disk
  • cloud_ssd: SSD
  • ephemeral_ssd: local SSD
DedicatedHostId String No dh-dedicatedhostid

The ID of the DDH.

InstanceChargeType String No PrePaid

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

  • PrePaid: Subscription.
  • PostPaid: Pay-As-You-Go

Default value: PostPaid.

InstanceType String No ecs.g5.large

The type of the instance. For more information, see Instance type families, or call DescribeInstanceTypes to query the latest instance types. When the DestinationResource parameter is set to SystemDisk or DataDisk, you must specify the InstanceType parameter as well.

IoOptimized String No optimized

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

  • none
  • optimized

When the DestinationResource parameter is set to InstanceType, SystemDisk, or DataDisk, you must specify the IoOptimized parameter as well.

Memory Float No 8.0

The memory size of the instance type. Unit: GiB. For more information, see Instance type families. The Memory parameter is valid only when the DestinationResource parameter is set to InstanceType.

NetworkCategory String No vpc

The type of the network. Valid values:

  • vpc
  • classic
ResourceType String No Instance

The type of the resource.

SpotStrategy String No NoSpot

The bidding policy for the Pay-As-You-Go instance. Valid values:

  • NoSpot: a normal Pay-As-You-Go instance
  • SpotWithPriceLimit: a preemptible instance with a maximum hourly price
  • SpotAsPriceGo: an instance that is billed based on the market price. The maximum price of this instance is the price of a Pay-As-You-Go instance.

Default value: NoSpot. The SpotStrategy parameter is valid only when the InstanceChargeType parameter is set to PostPaid.

SystemDiskCategory String No cloud_ssd

The category of the system disk. Valid values:

  • cloud: basic disk
  • cloud_efficiency: ultra disk
  • cloud_ssd: SSD
  • ephemeral_ssd: local SSD
ZoneId String No cn-hangzhou-e

The ID of the zone. When the ZoneId parameter is not specified, the system returns resources that match the other criteria of all zones within the region.

Response parameters

Name Type Example Description
AvailableZones

An array of zone types.

 └AvailableResources

An array of available resource types.

 └SupportedResources

An array of supported resource types.

 └Max Integer 2

The maximum value of a resource type. No value is returned when this parameter is null.

 └Min Integer 1

The minimum value of a resource type. No value is returned when the parameter is null.

 └Status String Available

The type of the resource. Valid values:

  • Available
  • SoldOut
 └StatusCategory String WithStock

The resource category based on the stock. Valid values:

  • WithStock: sufficient stock
  • ClosedWithStock: insufficient stock
  • WithoutStock: running out of 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
 └RegionId String cn-hangzhou

The ID of the region.

 └Status String Available

The type of the resource. Valid values:

  • Available
  • SoldOut
 └StatusCategory String WithStock

The resource category based on the stock. Valid values:

  • WithStock: sufficient stock
  • ClosedWithStock: insufficient stock
  • WithoutStock: running out of 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
&DestinationResource=InstanceType 
&RegionId=cn-hangzhou
&InstanceChargeType=PrePaid 
&SpotStrategy=NoSpot 
&ZoneId=cn-hangzhou-e
&IoOptimized=optimized 
&DedicatedHostId=dh-dedicatedhostid 
&InstanceType=["ecs.g5.large"] 
&SystemDiskCategory=cloud_ssd 
&DataDiskCategory=cloud_ssd 
&NetworkCategory=vpc 
&Cores=2 
&Memory=8.0
&ResourceType=Instance 
&<Common request parameters>

Successful response examples

XML format 

<DescribeAvailableResourceResponse> 
  <RequestId>5272B7D8-F366-4781-AF7B-63E735FBC09A</RequestId> 
  <AvailableZones> 
    <AvailableZone> 
      <Status>Available</Status>
      <RegionId>cn-hangzhou</RegionId>
      <ZoneId>cn-hangzhou-h</ZoneId> 
    </AvailableZone> 
    <AvailableZone> 
      <Status>Available</Status>
      <RegionId>cn-hangzhou</RegionId>
      <ZoneId>cn-hangzhou-g</ZoneId>
    </AvailableZone> 
    <AvailableZone> 
      <Status>Available</Status>
      <RegionId>cn-hangzhou</RegionId> 
      <ZoneId>cn-hangzhou-f</ZoneId> 
    </AvailableZone>
    <AvailableZone> 
      <Status>Available</Status>
      <RegionId>cn-hangzhou</RegionId>
      <ZoneId>cn-hangzhou-b</ZoneId> 
    </AvailableZone> 
    <AvailableZone> 
      <Status>Available</Status>
      <RegionId>cn-hangzhou</RegionId>
      <ZoneId>cn-hangzhou-e</ZoneId> 
    </AvailableZone>
  </AvailableZones>
</DescribeAvailableResourceResponse>

JSON format 

{
	"RequestId":"5272B7D8-F366-4781-AF7B-63E735FBC09A",
	"AvailableZones":{
		"AvailableZone":[
			{
				"Status":"Available",
				"RegionId":"cn-hangzhou",
				"ZoneId":"cn-hangzhou-h"
			},
			{
				"Status":"Available",
				"RegionId":"cn-hangzhou",
				"ZoneId":"cn-hangzhou-g"
			},
			{
				"Status":"Available",
				"RegionId":"cn-hangzhou",
				"ZoneId":"cn-hangzhou-f"
			},
			{
				"Status":"Available",
				"RegionId":"cn-hangzhou",
				"ZoneId":"cn-hangzhou-b"
			},
			{
				"Status":"Available",
				"RegionId":"cn-hangzhou",
				"ZoneId":"cn-hangzhou-e"
			}
		]
	}
}

Error codes

HTTP status code Error code Error message Description
404 Invalid.RegionId The specified RegionId does not exist. The error message returned when the RegionId parameter is invalid.
400 Invalid.InstanceChargeType The specified InstanceChargeType is not valid. The error message returned when the 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 when the DestinationResource parameter is invalid.
404 Invalid.ResourceType The ResourceType provided does not exist in our records. The error message returned when the ResourceType parameter is invalid.
404 Invalid.DestinationResource The specified DestinationResource is not valid. The error message returned when the DestinationResource parameter is invalid.
404 Invalid.IoOptimized The specified IoOptimized is not valid. The error message returned when the IoOptimized parameter is invalid.
404 Invalid.NetworkCategory The specified NetworkCategory is not valid. The error message returned when the NetworkCategory parameter is invalid.
404 Invalid.SpotStrategy The specified SpotStrategy is not valid. The error message returned when the SpotStrategy parameter is invalid.
403 InvalidDedicatedHostId.NotFound The specified DedicatedHostId does not exist. The error message returned when the specified DDH ID does not exist.
404 Invalid.NetworkType The specified NetworkType is not valid. The error message returned when the NetworkType parameter is invalid.
404 InvalidResourceId.NotFound The specified ResourceId is not found in our records The error message returned when the specified ResourceId does not exist.
403 InvalidParam.TypeAndCpuMem.Conflict The specified 'InstanceType' and 'Cores','Memory' are not blank at the same time. The error message returned when the specified ResourceId does not exist.
403 InvalidParam.Cores The specified parameter 'Cores' should be empty The error message returned when the Memory parameter is invalid.
403 InvalidParam.Memory The specified parameter 'Memory' should be empty The error message returned when the resource in the current region does not exist or has been released.
400 InvalidRegionId.MalFormed The specified parameter RegionId is not valid. The error message returned when the specified RegionId parameter is invalid.

View error codes