Function

An ECS flavor cannot be changed to certain flavors. This API is used to query the target flavors to which a specified ECS flavor can be changed.

URI

GET /v2.1/{project_id}/resize_flavors?instance_uuid={instance_uuid}&source_flavor_id={source_flavor_id}&source_flavor_name={source_flavor_name}&sort_key={sort_key}&sort_dir={sort_dir}&limit={limit}&marker={marker}

Table 1 describes the parameters in the URI.

**Table 1** Path parameters
Parameter	Mandatory	Description
project_id	Yes	Specifies the project ID.

One of the instance_uuid, source_flavor_id, and source_flavor_name parameters must be configured. If multiple parameters are configured, the system processes the instance_uuid, source_flavor_id, and source_flavor_name parameters in descending order by default.

Table 2 describes the query parameters.

**Table 2** Query parameters
Parameter	Mandatory	Type	Description
instance_uuid	No	String	Specifies the ID, in UUID format, of the target ECS.
source_flavor_id	No	String	Specifies the source flavor ID.
source_flavor_name	No	String	Specifies the source flavor name.
sort_key	No	String	Indicates the field for sorting. Options: flavorid: indicates the flavor ID. The default value is flavorid. name: indicates the flavor name. memory_mb: indicates the memory size. vcpus: indicates the number of vCPUs. root_gb: indicates the system disk size.
sort_dir	No	String	Specifies the ascending or descending sorting. Options: asc: indicates the ascending order. desc: indicates the descending order.
limit	No	Integer	Specifies the maximum number of flavors that can be displayed on one page. The default value is 1000.
marker	No	String	Uses the ID of the last flavor on one page as the paging marker.

Request

None

Response

Table 3 describes the response parameters.

**Table 3** Response parameters
Parameter	Type	Description
flavors	Array of objects	Specifies ECS flavors. For details, see Table 4.

**Table 4** **flavors** field description
Parameter	Type	Description
id	String	Specifies the ECS flavor ID.
name	String	Specifies the name of the ECS flavor.
vcpus	Integer	Specifies the number of vCPUs in the ECS flavor.
ram	Integer	Specifies the memory size (MB) in the ECS flavor.
disk	Integer	Specifies the system disk size in the ECS flavor. This parameter has not been used. Its default value is 0.
swap	String	Specifies the swap partition size required by the ECS flavor. This parameter has not been used. Its default value is "".
OS-FLV-EXT-DATA:ephemeral	Integer	Specifies the temporary disk size. This is an extended attribute. This parameter has not been used. Its default value is 0.
OS-FLV-DISABLED:disabled	Boolean	This is an extended attribute, specifying whether a flavor is available. true: indicates that a flavor is available. false: indicates that a flavor is unavailable. NOTE: This parameter is not used.
rxtx_factor	Float	This is an extended attribute. NOTE: This parameter is not used.
rxtx_quota	String	Specifies the software constraints of the network bandwidth that can be used by the ECS. This parameter has not been used. Its default value is null.
rxtx_cap	String	Specifies the hardware constraints of the network bandwidth that can be used by the ECS. This parameter has not been used. Its default value is null.
os-flavor-access:is_public	Boolean	Specifies whether a flavor is available to all tenants. This is an extended attribute. true: indicates that a flavor is available to all tenants. false: indicates that a flavor is available only to certain tenants. Default value: true
links	Array of objects	Specifies the shortcut link of the ECS flavor. For details, see Table 5.
extra_specs	Array of objects	Specifies the extended field of the ECS specifications. For details, see Table 6.

**Table 5** **links** field description
Parameter	Mandatory	Type	Description
rel	Yes	String	Specifies the shortcut link marker name.
href	Yes	String	Specifies the shortcut link.
type	Yes	String	Specifies the shortcut link type. This parameter has not been used. Its default value is null.

Example Request

GET https://{endpoint}/v1/{project_id}/cloudservers/resize_flavors?source_flavor_id=c3.xlarge.2

Example Response

{
    "flavors": [
        {
            "id": "c3.15xlarge.2",
            "name": "c3.15xlarge.2",
            "vcpus": "60",
            "ram": 131072,
            "disk": "0",
            "swap": "",
            "links": [
                {
                    "rel": "self",
                    "href": "https://compute-ext.region.xxx.com/v1.0/743b4c0428d94531b9f2add666642e6b/flavors/c3.15xlarge.2",
                    "type": null
                },
                {
                    "rel": "bookmark",
                    "href": "https://compute-ext.region.xxx.com/743b4c0428d94531b9f2add666642e6b/flavors/c3.15xlarge.2",
                    "type": null
                }
            ],
            "OS-FLV-EXT-DATA:ephemeral": 0,
            "rxtx_factor": 1,
            "OS-FLV-DISABLED:disabled": false,
            "rxtx_quota": null,
            "rxtx_cap": null,
            "os-flavor-access:is_public": true,
            "extra_specs": {
                "ecs:virtualization_env_types": "CloudCompute",
                "ecs:generation": "c3",
                "ecs:performancetype": "computingv3",
                "resource_type": "IOoptimizedC3_2"
             }
        }
    ]
}

Returned Values

See Returned Values for General Requests.

Error Codes

See Error Codes.

Querying the Target Flavors to Which an ECS Flavor Can Be Changed