DescribeAvailableResource - Elastic Compute Service - Alibaba Cloud Documentation Center

Queries resources in a zone. You can query the resources available in a zone before you create Elastic Compute Service (ECS) instances by calling the RunInstances operation or before you change instance types by calling the ModifyInstanceSpec operation.

Operation description

Usage notes

The value of DestinationResource determines whether you need to specify additional parameters. When you select a value in the following chain for DestinationResource, 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, take note of the following items:
  - If you set ResourceType to disk to query the categories of data disks that are not attached to ECS instances, you do not need to specify InstanceType.
  - If you set ResourceType to instance to query the categories of data disks that are purchased together with ECS instances, you must specify InstanceType and SystemDiskCategory due to instance type-specific limits on system disks and data disks.
- If you set DestinationResource to SystemDisk and ResourceType to instance, you must specify InstanceType due to instance type-specific limits on system disks.
- If you set DestinationResource to InstanceType, we recommend that you specify IoOptimized and InstanceType.
- If you want to query the available ecs.g5.large resources in all zones of the China (Hangzhou) region, 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 in the China (Hangzhou) region, 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.

Debug

Authorization information

There is currently no authorization information disclosed in the API.

Request parameters

Parameter	Type	Required	Description	Example
RegionId	string	Yes	The ID of the region for which to query resources. You can call the DescribeRegions operation to query the most recent region list.	cn-hangzhou
InstanceChargeType	string	No	The billing method of the resource. For more information, see Billing overview. Valid values: PrePaid: subscription. PostPaid: pay-as-you-go. Default value: PostPaid.	PrePaid
SpotStrategy	string	No	The bidding policy for pay-as-you-go instances. Valid values: NoSpot: The instance is a pay-as-you-go instance. SpotWithPriceLimit: The instance is a preemptible instance with a user-defined maximum hourly price. SpotAsPriceGo: The instance is a preemptible instance for which the market price is automatically used as the bid price. The market price can be up to the pay-as-you-go price. Default value: NoSpot. The SpotStrategy parameter takes effect only when the InstanceChargeType parameter is set to PostPaid.	NoSpot
SpotDuration	integer	No	The protection period of the preemptible instance. Unit: hours. Default value: 1. Valid values: 1: After a preemptible instance is created, Alibaba Cloud ensures that the instance is not automatically released within 1 hour. After the 1-hour protection period ends, the system compares the bid price with the market price and checks the resource inventory to determine whether to retain or release the instance. 0: After a preemptible instance is created, Alibaba Cloud does not ensure that the instance runs for 1 hour. The system compares the bid price with the market price and checks the resource inventory to determine whether to retain or release the instance. Alibaba Cloud sends an ECS system event to notify you 5 minutes before the instance is released. Preemptible instances are billed by second. We recommend that you specify a protection period based on your business requirements. Note This parameter takes effect only if SpotStrategy is set to SpotWithPriceLimit or SpotAsPriceGo.	1
DestinationResource	string	Yes	The resource type to query. Valid values: Zone: zone. IoOptimized: I/O optimized resource. InstanceType: instance type. SystemDisk: system disk. DataDisk: data disk. Network: network type. ddh: dedicated host. For more information about how to configure the DestinationResource parameter, see the Description section of this topic.	InstanceType
ZoneId	string	No	The ID of the zone where the instance resides. This parameter is empty by default. When this parameter is empty, the system returns resources that match the other criteria in all zones within the region specified by `RegionId`.	cn-hangzhou-e
IoOptimized	string	No	Specifies whether the instance is an I/O optimized instance. Valid values: none: The instance is a non-I/O optimized instance. optimized: The instance is an I/O optimized instance. Default value: optimized.	optimized
DedicatedHostId	string	No	The ID of the dedicated host.	dh-bp165p6xk2tlw61e****
InstanceType	string	No	The instance types. For more information, see Instance families or call the DescribeInstanceTypes operation to query the most recent instance type list. For more information about how to configure the InstanceType parameter, see the Description section of this topic.	ecs.g5.large
SystemDiskCategory	string	No	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: Enterprise SSD (ESSD) cloud_auto: ESSD AutoPL disk Default value: cloud_efficiency. Note This parameter must be specified when ResourceType is set to instance and DestinationResource is set to DataDisk. If you do not specify this parameter, the default value takes effect.	cloud_ssd
DataDiskCategory	string	No	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 cloud_auto: ESSD AutoPL disk	cloud_ssd
NetworkCategory	string	No	The network type of the cluster. Valid values: vpc classic	vpc
Cores	integer	No	The number of vCPUs of the instance type. For more information, see Instance families. The Cores parameter takes effect only when the DestinationResource parameter is set to InstanceType.	2
Memory	float	No	The memory size of the instance type. Unit: GiB. For more information, see Instance families. The Memory parameter takes effect only when the DestinationResource parameter is set to InstanceType.	8.0
ResourceType	string	No	The type of the resource. Valid values: instance: ECS instance. disk: cloud disk. reservedinstance: reserved instance. ddh: dedicated host.	instance
Scope	string	No	The scope of the reserved instance. Valid values: Region: regional. Zone: zonal.	Region

Response parameters

Parameter	Type	Description	Example
	object
RequestId	string	The ID of the request.	0041D94C-FB92-4C49-B115-259DA1C*****
AvailableZones	array<object>	Details about the zones in which resources are available.
	object	Details about the zones in which resources are available.
ZoneId	string	The zone ID.	cn-hangzhou-e
Status	string	The status of resources in the zone. Valid values: Available SoldOut	Available
StatusCategory	string	The resource category based on the stock level in the zone. Valid values: WithStock: Resources are in sufficient stock. ClosedWithStock: Resources are in insufficient stock. We recommend that you use other resources that are in sufficient stock. WithoutStock: Resources are out of stock and will be replenished. We recommend that you use other resources that are in sufficient stock. ClosedWithoutStock: Resources are out of stock and will not be replenished. We recommend that you use other resources that are in sufficient stock.	WithStock
RegionId	string	The region ID.	cn-hangzhou
AvailableResources	array<object>	The resources that are available in the zone.
	object	Details about the resources that can be created in the zone.
Type	string	The resource type. Valid values: Zone: zone IoOptimized: I/O optimized resource InstanceType: instance type SystemDisk: system disk DataDisk: data disk Network: network type ddh: dedicated host	InstanceType
SupportedResources	array<object>	The information about the resources.
	object	Details about the resources.
Status	string	The status of the resource. Valid values: Available SoldOut	Available
Value	string	The resource.	ecs.d1ne.xlarge
Max	integer	The maximum disk capacity. This parameter takes effect only if DestinationResource is set to SystemDisk or DataDisk.	2
Unit	string	The unit of the disk capacity. This parameter takes effect only if DestinationResource is set to SystemDisk or DataDisk.	null
StatusCategory	string	The resource category based on the stock level. Valid values: WithStock: Resources are in sufficient stock. ClosedWithStock: Resources are in insufficient stock. We recommend that you use other resources that are in sufficient stock. WithoutStock: Resources are out of stock and will be replenished. We recommend that you use other resources that are in sufficient stock. ClosedWithoutStock: Resources are out of stock and will not be replenished. We recommend that you use other resources that are in sufficient stock.	WithStock
Min	integer	The minimum disk capacity. This parameter takes effect only if DestinationResource is set to SystemDisk or DataDisk.	1

Examples

Sample success responses

JSONformat

{
  "RequestId": "0041D94C-FB92-4C49-B115-259DA1C*****",
  "AvailableZones": {
    "AvailableZone": [
      {
        "ZoneId": "cn-hangzhou-e",
        "Status": "Available",
        "StatusCategory": "WithStock",
        "RegionId": "cn-hangzhou",
        "AvailableResources": {
          "AvailableResource": [
            {
              "Type": "InstanceType",
              "SupportedResources": {
                "SupportedResource": [
                  {
                    "Status": "Available",
                    "Value": "ecs.d1ne.xlarge",
                    "Max": 2,
                    "Unit": "null",
                    "StatusCategory": "WithStock",
                    "Min": 1
                  }
                ]
              }
            }
          ]
        }
      }
    ]
  }
}

Error codes

HTTP status code	Error code	Error message	Description
400	Invalid.InstanceChargeType	The specified InstanceChargeType is not valid.	The specified InstanceChargeType parameter is invalid.
400	Invalid.Param	The input parameter DestinationResource that is mandatory for processing this request is not supplied.	The specified DestinationResource parameter is invalid.
400	InvalidRegionId.MalFormed	The specified parameter RegionId is not valid.	The specified RegionId parameter is invalid.
403	InvalidDedicatedHostId.NotFound	The specified DedicatedHostId does not exist.	-
403	InvalidParam.TypeAndCpuMem.Conflict	The specified 'InstanceType' and 'Cores','Memory' are not blank at the same time.	-
403	InvalidParam.Cores	The specified parameter 'Cores' should be empty	-
403	InvalidParam.Memory	The specified parameter 'Memory' should be empty	-
403	InvalidParameter.Scope	The specified parameter Scope is invalid.	-
403	OperationDenied.RegionIdNotSupported	region not support spot duration instance.	-
403	OperationDenied.FlavorNotSupported	flavor not support spot duration instance.	-
403	OperationDenied.TimestampNotSupported	timestamp not support spot duration instance.	-
403	InvalidParameter.ResourceOwnerId	The specified parameter ResourceOwnerId is not available anymore.	-
404	Invalid.RegionId	The specified RegionId does not exist.	The specified RegionId parameter is invalid.
404	Unavailable.Regions	The available regions does not exists	The specified RegionId parameter is invalid.
404	Invalid.ResourceType	The ResourceType provided does not exist in our records.	The specified resource type is invalid.
404	Invalid.DestinationResource	The specified DestinationResource is not valid.	The specified DestinationResource parameter is invalid.
404	Invalid.IoOptimized	The specified IoOptimized is not valid.	The specified IoOptimized parameter is invalid.
404	Invalid.NetworkCategory	The specified NetworkCategory is not valid.	The specified NetworkCategory parameter is invalid.
404	Invalid.SpotStrategy	The specified SpotStrategy is not valid.	The specified SpotStrategy parameter is invalid.
404	Invalid.NetworkType	The specified NetworkType is not valid.	The specified NetworkType parameter is invalid.
404	InvalidResourceId.NotFound	The specified ResourceId is not found in our records	The specified ResourceId parameter is invalid. Check whether the resource exists.
404	InvalidRegionId.NotFound	The RegionId provided does not exist in our records.	The RegionId provided does not exist

For a list of error codes, visit the Service error codes.

Change history

Change time	Summary of changes	Operation
2024-03-25	The Error code has changed	View Change Details