Modifies a scaling configuration.

Description

If you want to change the name of a scaling configuration in a scaling group, make sure that the new name is unique within the scaling group.

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 ModifyScalingConfiguration

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

ScalingConfigurationId String Yes asc-bp16har3jpj6fjbx****

The ID of the scaling configuration that you want to modify.

IoOptimized String No none

Specifies whether the instance that you want to create is an I/O optimized instance. Valid values:

  • none: non-I/O optimized instance.
  • optimized: I/O optimized instance.
SpotStrategy String No NoSpot

The preemption policy that you want to apply to pay-as-you-go instances and preemptible instances. Valid values:

  • NoSpot: This policy applies to regular pay-as-you-go instances.
  • SpotWithPriceLimit: This policy applies to the preemptible instance for which a maximum hourly price is specified.
  • SpotAsPriceGo: This policy applies to the preemptible instance for which the market price at the time of purchase is used as the bid price.
ScalingConfigurationName String No test-modify

The name of the scaling configuration. The name must be 2 to 64 characters in length and can contain letters, digits, underscores (_), hyphens (-), and periods (.). It must start with a letter or a digit.

The name of the scaling configuration must be unique within a scaling group in a region. If you do not specify this parameter, the value of ScalingConfigurationId is used.

InstanceName String No inst****

The name of the Elastic Compute Service (ECS) instance that is automatically created based on the scaling configuration.

HostName String No hos****

The hostname of the ECS instance. The hostname cannot start or end with a period (.) or a hyphen (-). The hostname cannot contain consecutive periods (.) or hyphens (-). Naming conventions for different types of instances:

  • Windows instances: The hostname must be 2 to 15 characters in length, and can contain letters, digits, and hyphens (-). The hostname cannot contain periods (.). It cannot contain only digits.
  • Other instances such as Linux instances: The hostname must be 2 to 64 characters in length. You can use periods (.) to separate a hostname into multiple segments. Each segment can contain letters, digits, and hyphens (-).
ImageId String No centos6u5_64_20G_aliaegis_2014****.vhd

The ID of the image that is used by Auto Scaling to automatically create instances.

Note If the image that is specified in the scaling configuration contains a system disk and data disks, the data that is stored in the data disks is cleared after you modify the image.
ImageName String No suse11sp3_64_20G_aliaegis_2015****.vhd

The name of the image. The name must be unique within a region. If you specify the ImageId parameter, the ImageName parameter is ignored.

Alibaba Cloud Marketplace images cannot be specified by using ImageName.

Cpu Integer No 2

The number of vCPUs.

You can specify the number of vCPUs and memory size to determine the range of instance types. For example, you can set CPU to 2 and Memory to 16 to specify instance types that have 2 vCPUs and 16 GiB of memory. Auto Scaling determines a set of available instance types based on factors such as I/O optimization requirements and zones. Then, Auto Scaling preferentially creates instances of the instance type that is provided at the lowest unit price.

Note You can specify CPU and memory specifications to create ECS instances only if Scaling Policy is set to Cost Optimization Policy and no instance type is specified in the scaling configuration.
Memory Integer No 16

The memory size.

You can specify the number of vCPUs and memory size to determine the range of instance types. For example, you can set CPU to 2 and Memory to 16 to specify instance types that have 2 vCPUs and 16 GiB of memory. Auto Scaling determines a set of available instance types based on factors such as I/O optimization requirements and zones. Then, Auto Scaling preferentially creates instances of the instance type that is provided at the lowest unit price.

Note You can specify CPU and memory specifications to create ECS instances only if Scaling Policy is set to Cost Optimization Policy and no instance type is specified in the scaling configuration.
InternetChargeType String No PayByBandwidth

The billing method for network usage. Valid values:

  • PayByBandwidth: You are charged for the maximum available bandwidth that is specified by InternetMaxBandwidthOut.
  • PayByTraffic: You are charged for the actual traffic used. InternetMaxBandwidthOut specifies only the maximum available bandwidth.
InternetMaxBandwidthOut Integer No 50

The maximum outbound public bandwidth. Unit: Mbit/s. Valid values:

  • Valid values if you set InternetChargeType to PayByBandwidth: 0 to 100. If you leave this parameter empty, a value of 0 is used.
  • Valid values if you set InternetChargeType to PayByTraffic: 0 to 100. If you leave this parameter empty, an error is reported.
SystemDisk.Category String No cloud_efficiency

The category of the system disk. Valid values:

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

You cannot specify the SystemDisk.Category and SystemDiskCategories.N parameters at the same time. If you do not specify the SystemDisk.Category and SystemDiskCategories.N parameters, the default value of SystemDisk.Category is used. The default value for non-I/O optimized instances of Generation I instance types is cloud. The default value for instances of other types is cloud_efficiency.

SystemDisk.Size Integer No 50

The size of the system disk. Unit: GiB. Valid values: 20 to 500.

The value of SystemDisk.Size must be greater than or equal to max{20, ImageSize}.

SystemDisk.DiskName String No cloud_ssdSystem

The name of the system disk. The name must be 2 to 128 characters in length. The name must start with a letter but cannot start with http:// or https://. The name can contain letters, digits, colons (:), underscores (_), and hyphens (-).

SystemDisk.Description String No Test system disk.

The description of the system disk. The description must be 2 to 256 characters in length. The description can contain letters but cannot start with http:// or https://.

SystemDisk.AutoSnapshotPolicyId String No sp-bp12m37ccmxvbmi5****

The ID of the automatic snapshot policy that you want to apply to the system disk.

SystemDisk.PerformanceLevel String No PL0

The performance level of the system disk that is an ESSD. Valid values:

  • PL0: A single ESSD can deliver up to 10,000 random read/write IOPS.
  • PL1: A single ESSD can deliver up to 50,000 random read/write IOPS.
  • PL2: A single ESSD can deliver up to 100,000 random read/write IOPS.
  • PL3: A single ESSD can deliver up to 1,000,000 random read/write IOPS.
Note For more information about how to select ESSD performance levels, see ESSDs.
LoadBalancerWeight Integer No 50

The weight of the ECS instance as a backend server. Valid values: 1 to 100.

UserData String No echo hello ecs!

The user data of the ECS instance. The data must be encoded in Base64. The maximum size of the raw data before encoding is 16 KB.

KeyPairName String No KeyPair_Name

The name of the key pair that is used to log on to an ECS instance.

  • Windows instances do not use this parameter.
  • By default, the username and password authentication method is disabled for Linux instances.
RamRoleName String No RamRoleTest

The name of the RAM role that is associated with the ECS instance. The name is provided and maintained by Resource Access Management (RAM). You can call the ListRoles operation to query the available RAM roles. For more information about how to create a RAM role, see CreateRole.

PasswordInherit Boolean No false

Specifies whether to use the password preset in the image. Before you use this parameter, make sure that a password is configured for the image.

Tags String No {"key1":"value1","key2":"value2", ... "key5":"value5"}

The tags of the ECS instance. The tags must be specified in the key-value pair format. You can specify up to 20 tags. The following rules apply to tag keys and tag values:

  • A tag key can be up to 64 characters in length. The key cannot start with acs: or aliyun, and cannot contain http:// or https://. You cannot specify an empty string as a tag key.
  • A tag value can be up to 128 characters in length. The value cannot start with acs: or aliyun, and cannot contain http:// or https://. You can specify an empty string as a tag value.
DeploymentSetId String No ds-bp13v7bjnj9gis****

The ID of the deployment set to which the ECS instance belongs.

SecurityGroupId String No sg-F876F****

The ID of the security group to which the ECS instance belongs. The ECS instances that belong to the same security group can access each other.

Override Boolean No true

Specifies whether to overwrite existing data. Valid values:

  • true: overwrites existing data.
  • false: does not overwrite existing data.
ResourceGroupId String No abcd1234abcd****

The ID of the resource group to which the ECS instance belongs.

HpcClusterId String No hpc-clusterid

The ID of the Elastic High Performance Computing (E-HPC) cluster to which the ECS instance belongs.

InstanceDescription String No Test instance.

The description of the ECS instance. The description must be 2 to 256 characters in length. The description can contain letters but cannot start with http:// or https://.

Ipv6AddressCount Integer No 1

The number of randomly generated IPv6 addresses that you want to allocate to the elastic network interface (ENI).

CreditSpecification String No Standard

The performance mode of the burstable instance. Valid values:

  • Standard: the standard mode. For more information, see the "Standard mode" section in the Burstable instances topic.
  • Unlimited: the unlimited mode. For more information, see the "Unlimited mode" section in the Burstable instances topic.
ImageFamily String No hangzhou-daily-update

The name of the image family. You can specify this parameter to obtain the latest custom images that are available in the specified image family. You can use the images to create instances. If you specify the ImageId parameter, you cannot specify the ImageFamily parameter.

ZoneId String No cn-hangzhou-g

The ID of the zone where the ECS instance resides.

DedicatedHostId String No dh-bp67acfmxazb4p****

The ID of the dedicated host on which the ECS instance is created. Preemptible instances cannot be created on dedicated hosts. If you specify the DedicatedHostId parameter, the SpotStrategy and SpotPriceLimit parameters are ignored.

You can call the DescribeDedicatedHosts operation to query dedicated host IDs.

Affinity String No default

Specifies whether to associate the instance on a dedicated host with the dedicated host. Valid values:

  • default: does not associate the instance with the dedicated host. If you restart an instance that was in economical mode when the original dedicated host of the instance has insufficient resources, the instance is deployed to another dedicated host in the automatic deployment resource pool.
  • host: associates the instance with the dedicated host. If you restart an instance that was in economical mode, the instance remains on the original dedicated host. If the original dedicated host has insufficient resources, the instance fails to start.
Tenancy String No default

Specifies whether to create the instance on a dedicated host. Valid values:

  • default: creates the instance on a non-dedicated host.
  • host: creates the instance on a dedicated host. If you do not specify the DedicatedHostId parameter, the system automatically selects a dedicated host for the instance that you created.
PrivatePoolOptions.MatchCriteria String No Open

The type of the private pool. A private pool is generated after an elasticity assurance or a capacity reservation takes effect. You can select a private pool when you create instances. Valid values:

  • Open: open private pool. The system selects a matching open private pool to create the instance. If no matching open private pools are available, the resources in the public pool are used. In this case, you do not need to specify the PrivatePoolOptions.Id parameter.
  • Target: specified private pool. The system uses the capacity of a specified private pool to create the instance. If the specified private pool is unavailable, the instance cannot be created. If you set this parameter to Target, you must specify the PrivatePoolOptions.Id parameter.
  • None: no private pool. The capacity of private pools is not used.
PrivatePoolOptions.Id String No eap-bp67acfmxazb4****

The ID of the private pool. The ID of a private pool is the same as that of the elasticity assurance or capacity reservation for which the private pool is generated.

SpotDuration Integer No 1

The retention period of the preemptible instance. Unit: hours. Valid values: 0, 1, 2, 3, 4, 5, and 6.

  • The following retention periods are in invitational preview: 2, 3, 4, 5, and 6 hours. If you want to set this parameter to one of these values, submit a ticket.
  • If you set this parameter to 0, no retention period is specified for the preemptible instance.
SpotInterruptionBehavior String No Terminate

The interruption mode of the preemptible instance. Default value: Terminate. Set the value to Terminate. In this case, the instance is directly released.

SystemDisk.Encrypted Boolean No false

Specifies whether to encrypt the system disk. Valid values:

  • true: encrypts the system disk.
  • false: does not encrypt the system disk.

Default value: false.

SystemDisk.KMSKeyId String No 0e478b7a-4262-4802-b8cb-00d3fb40****

The ID of the Key Management Service (KMS) key that is used to encrypt the system disk.

SystemDisk.EncryptAlgorithm String No AES-256

The encryption algorithm that is used to encrypt the system disk. Valid values:

  • AES-256
  • SM4-128

Default value: AES-256.

DataDisk.N.PerformanceLevel String No PL1

The performance level of data disk N that is an ESSD. If you set the DataDisk.N.Category parameter to cloud_essd, the N value must be the same as the N value in DataDisk.N.Category. Valid values:

  • PL0: A single ESSD can deliver up to 10,000 random read/write IOPS.
  • PL1: A single ESSD can deliver up to 50,000 random read/write IOPS.
  • PL2: A single ESSD can deliver up to 100,000 random read/write IOPS.
  • PL3: A single ESSD can deliver up to 1,000,000 random read/write IOPS.
Note For more information about how to select ESSD performance levels, see ESSDs.
DataDisk.N.AutoSnapshotPolicyId String No sp-bp19nq9enxqkomib****

The ID of the automatic snapshot policy that you want to apply to data disk N. Valid values of N: 1 to 16.

DataDisk.N.Encrypted String No false

Specifies whether to encrypt data disk N. Valid values of N: 1 to 16. Valid values:

  • true: encrypts data disk N.
  • false: does not encrypt data disk N.
DataDisk.N.Description String No Test data disk.

The description of data disk N. Valid values of N: 1 to 16. The description must be 2 to 256 characters in length. The description can contain letters but cannot start with http:// or https://.

DataDisk.N.SnapshotId String No s-snapshot****

The ID of the snapshot that you want to use to create data disk N. Valid values of N: 1 to 16. If you specify this parameter, the DataDisk.N.Size parameter is ignored. The size of the disk is the same as the size of the specified snapshot.

If you specify a snapshot that is created on or before July 15, 2013, the operation fails and the system returns InvalidSnapshot.TooOld.

DataDisk.N.Categories.N String No cloud

Category N of data disk N. The first N in DataDisk.N.Categories.N represents the serial number of the data disk. Valid values of N: 1 to 16. The second N in DataDisk.N.Categories.N represents the serial number of the data disk category. Valid values of N: 1 to 4. You can specify up to four data disk categories in a scaling configuration. A smaller value of N specifies a higher priority. If Auto Scaling cannot create data disks of the disk category that has the highest priority, it creates disks of the disk category that has the next highest priority. Valid values:

  • cloud: basic disk. The DeleteWithInstance attribute of a basic disk that is created together with the instance is set to true.
  • cloud_efficiency: ultra disk.
  • cloud_ssd: standard SSD.
  • cloud_essd: ESSD.
Note You cannot specify the DataDisk.N.Categories.N and DataDisk.N.Category parameters at the same time.
DataDisk.N.Size Integer No 100

The size of data disk N. Unit: GiB. Valid values of N: 1 to 16. Valid values:

  • Valid values if you set DataDisk.N.Category to cloud: 5 to 2000.
  • Valid values if you set DataDisk.N.Category to cloud_efficiency: 20 to 32768.
  • Valid values if you set DataDisk.N.Category to cloud_essd: 20 to 32768.
  • Valid values if you set DataDisk.N.Category to ephemeral_ssd: 5 to 800.

The value of DataDisk.N.Size must be greater than or equal to the size of the snapshot that is specified by SnapshotId.

DataDisk.N.Device String No /dev/xvdb

The mount target of data disk N. Valid values of N: 1 to 16. If you do not specify this parameter, the system automatically assigns a mount target when you create the ECS instance. The name of the mount target ranges from /dev/xvdb to /dev/xvdz.

DataDisk.N.DiskName String No cloud_ssdData

The name of data disk N. Valid values of N: 1 to 16. The name must be 2 to 128 characters in length. The name must start with a letter but cannot start with http:// or https://. The name can contain letters, digits, colons (:), underscores (_), and hyphens (-).

DataDisk.N.Category String No cloud_ssd

The category of data disk N. Valid values of N: 1 to 16. Valid values:

  • cloud: basic disk. The DeleteWithInstance attribute of a basic disk that is created together with the instance is set to true.
  • cloud_efficiency: ultra disk.
  • cloud_ssd: standard SSD.
  • cloud_essd: ESSD.
  • ephemeral_ssd: local SSD.

You cannot specify the DataDisk.N.Category and DataDisk.N.Categories.N parameters at the same time. If you do not specify the DataDisk.N.Category and DataDisk.N.Categories.N parameters, the default value of DataDisk.N.Category is:

  • cloud_efficiency for an I/O optimized instance.
  • cloud for a non-I/O optimized instance.
DataDisk.N.DeleteWithInstance Boolean No true

Specifies whether to release data disk N if the instance to which data disk N is attached is released. Valid values of N: 1 to 16. Valid values:

  • true: If the instance is released, the data disk is released.
  • false: If the instance is released, the data disk is retained.

This parameter is available only for independent disks whose DataDisk.N.Category parameter is set to cloud, cloud_efficiency, cloud_ssd, or cloud_essd. If you specify this parameter for other disks, an error is reported.

DataDisk.N.KMSKeyId String No 0e478b7a-4262-4802-b8cb-00d3fb40****

The ID of the KMS key of data disk N. Valid values of N: 1 to 16.

SpotPriceLimit.N.PriceLimit Float No 0.125

The price limit of preemptible instance N. Valid values of N: 1 to 10. This parameter is available only if you set the SpotStrategy parameter to SpotWithPriceLimit.

SpotPriceLimit.N.InstanceType String No ecs.g6.large

The instance type of preemptible instance N. Valid values of N: 1 to 10. This parameter is available only if you set SpotStrategy to SpotWithPriceLimit.

InstanceTypes.N String No ecs.g6.large

Instance type N of ECS instances. If you specify this parameter, the InstanceType parameter is ignored. You can specify up to 10 instance types for a scaling configuration. Valid values of N: 1 to 10.

A smaller value of N specifies a higher priority. Auto Scaling creates instances based on the priorities of the instance types. If Auto Scaling cannot create instances of the instance type that has the highest priority, it creates instances of the instance type that has the next highest priority.

InstanceTypeOverride.N.InstanceType String No ecs.c5.xlarge

If you want to specify the capacity of instance types in the scaling configuration, you must specify the InstanceTypeOverride.N.InstanceType and InstanceTypeOverride.N.WeightedCapacity parameters.

This parameter is used to specify the instance type. You can specify N values for this parameter. You can use this parameter together with the InstanceTypeOverride.N.WeightedCapacity parameter to specify weights for multiple instance types. Valid values of N: 1 to 10.

Note You cannot specify the InstanceTypeOverride.N.InstanceType and InstanceTypes parameters at the same time.

For information about valid values of InstanceType in InstanceTypeOverride.N.InstanceType, see Instance families.

InstanceTypeOverride.N.WeightedCapacity Integer No 4

If you want to specify the capacity of instance types in the scaling configuration, you must specify the InstanceTypeOverride.N.InstanceType and InstanceTypeOverride.N.WeightedCapacity parameters. The two parameters have a one-to-one correspondence. The value of N in the two parameters must be the same.

This parameter specifies the weight of the instance type. The weight specifies the capacity of a single instance of the specified instance type in the scaling group. A higher weight specifies that a smaller number of instances of the specified instance type are required to meet the expected capacity.

Performance metrics such as the number of vCPUs and the memory size of each instance type may vary. You can specify different weights for different instance types based on your business requirements.

Example:

  • Current capacity: 0
  • Expected capacity: 6
  • Capacity of ecs.c5.xlarge: 4

To meet the expected capacity, Auto Scaling creates two ecs.c5.xlarge instances.

Note The capacity of the scaling group cannot exceed the sum of the maximum capacity that is specified by MaxSize and the maximum weight of the instance type.

Valid values of WeightedCapacity in InstanceTypeOverride.N.WeightedCapacity: 1 to 500.

SecurityGroupIds.N String No sg-bp18kz60mefs****

The ID of the security group.

InstancePatternInfo.N.Cores Integer No 2

The number of vCPUs that are specified for an instance type in the intelligent configuration mode. This parameter is used to filter the available instance types that meet the specified criteria. For more information, see Instance families. Valid values of N: 1 to 10.

Take note of the following items:

  • The InstancePatternInfo.N parameter is available only for scaling groups that reside in virtual private clouds (VPCs).
  • You must specify the InstancePatternInfo.N, InstancePatternInfo.N.Cores, and InstancePatternInfo.N.Memory parameters at the same time.
  • If you specify an instance type in the InstanceType or InstanceTypes.N parameter, Auto Scaling preferentially uses the instance type that is specified by the InstanceType or InstanceTypes.N parameter for scale-out activities. If the specified instance type has insufficient inventory, Auto Scaling uses the instance types that are specified by the InstancePatternInfo.N parameter based on the unit price in ascending order.
InstancePatternInfo.N.InstanceFamilyLevel String No EnterpriseLevel

The instance family level in intelligent configuration mode. This parameter is used to filter the available instance types that meet the specified criteria. Valid values:

  • EntryLevel: shared instance type. Instances of this level are cost-effective, but do not provide stable computing performance. Instances of this level are suitable for business scenarios in which the CPU utilization is low. For more information, see Shared instance families.
  • EnterpriseLevel: Instances of this level provide stable performance and dedicated resources, and are suitable for business scenarios that require high stability. For more information, see Instance families.
  • CreditEntryLevel: This value is available only for burstable instances. CPU credits are used to ensure computing performance. This level is suitable for scenarios in which the CPU utilization is low but may fluctuate in specific cases. For more information, see What are burstable instances?

Valid values of N: 1 to 10.

InstancePatternInfo.N.MaxPrice Float No 2

The maximum hourly price for a pay-as-you-go instance or a preemptible instance in intelligent configuration mode. This parameter is used to filter the available instance types that meet the specified criteria. Valid values of N: 1 to 10.

Note If you set SpotStrategy to SpotWithPriceLimit, you must specify this parameter. Otherwise, you do not need to specify this parameter.
InstancePatternInfo.N.Memory Float No 4

The memory size that is specified for an instance type in intelligent configuration mode. Unit: GiB. This parameter is used to filter the available instance types that meet the specified criteria. For more information, see Instance families. Valid values of N: 1 to 10.

SystemDiskCategories.N String No cloud

Category N of the system disk. Valid values of N: 1 to 4. You can specify up to four system disk categories in a scaling configuration. A smaller value of N specifies a higher priority. If Auto Scaling cannot create system disks of the disk category that has the highest priority, it creates disks of the disk category that has the next highest priority. Valid values:

  • cloud: basic disk
  • cloud_efficiency: ultra disk
  • cloud_ssd: standard SSD
  • cloud_essd: ESSD
Note You cannot specify the SystemDiskCategories.N and SystemDisk.Category parameters at the same time.

Response parameters

Parameter Type Example Description
RequestId String 473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E

The ID of the request.

Examples

Sample requests

http(s)://ess.aliyuncs.com/?Action=ModifyScalingConfiguration
&ScalingConfigurationId=asc-bp16har3jpj6fjbx****
&IoOptimized=none
&SpotStrategy=NoSpot
&ScalingConfigurationName=test-modify
&InstanceName=inst****
&HostName=hos****
&ImageId=centos6u5_64_20G_aliaegis_2014****.vhd
&ImageName=suse11sp3_64_20G_aliaegis_2015****.vhd
&Cpu=2
&Memory=16
&InternetChargeType=PayByBandwidth
&InternetMaxBandwidthOut=50
&SystemDisk.Category=cloud_efficiency
&SystemDisk.Size=50
&SystemDisk.DiskName=cloud_ssdSystem
&SystemDisk.Description=Test system disk.
&SystemDisk.AutoSnapshotPolicyId=sp-bp12m37ccmxvbmi5****
&SystemDisk.PerformanceLevel=PL0
&LoadBalancerWeight=50
&UserData=echo hello ecs!
&KeyPairName=KeyPair_Name
&RamRoleName=RamRoleTest
&PasswordInherit=false
&Tags={"key1":"value1","key2":"value2", ... "key5":"value5"}
&DeploymentSetId=ds-bp13v7bjnj9gis****
&SecurityGroupId=sg-F876F****
&Override=true
&ResourceGroupId=abcd1234abcd****
&HpcClusterId=hpc-clusterid
&InstanceDescription=Test instance.
&Ipv6AddressCount=1
&CreditSpecification=Standard
&ImageFamily=hangzhou-daily-update
&ZoneId=cn-hangzhou-g
&DedicatedHostId=dh-bp67acfmxazb4p****
&Affinity=default
&Tenancy=default
&PrivatePoolOptions.MatchCriteria=Open
&PrivatePoolOptions.Id=eap-bp67acfmxazb4****
&SpotDuration=1
&SpotInterruptionBehavior=Terminate
&DataDisk=[{"PerformanceLevel":"PL1","AutoSnapshotPolicyId":"sp-bp19nq9enxqkomib****","Encrypted":"false","Description":"Test data disk.","SnapshotId":"s-snapshot****","Categories":["cloud"],"Size":100,"Device":"/dev/xvdb","DiskName":"cloud_ssdData","Category":"cloud_ssd","DeleteWithInstance":true,"KMSKeyId":"0e478b7a-4262-4802-b8cb-00d3fb40****"}]
&SpotPriceLimit=[{"PriceLimit":0.125,"InstanceType":"ecs.g6.large"}]
&InstanceTypes=["ecs.g6.large"]
&InstanceTypeOverride=[{"InstanceType":"ecs.c5.xlarge","WeightedCapacity":4}]
&SecurityGroupIds=["sg-bp18kz60mefs****"]
&InstancePatternInfo=[{"Cores":2,"InstanceFamilyLevel":"EnterpriseLevel","MaxPrice":2.0,"Memory":4.0}]
&SystemDiskCategories=["cloud"]
&SystemDisk.Encrypted=false
&SystemDisk.KMSKeyId=0e478b7a-4262-4802-b8cb-00d3fb40****
&SystemDisk.EncryptAlgorithm=AES-256
&<Common request parameters>

Sample success responses

XML format

HTTP/1.1 200 OK
Content-Type:application/xml

<ModifyScalingConfigurationResponse>
    <RequestId>473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E</RequestId>
</ModifyScalingConfigurationResponse>

JSON format

HTTP/1.1 200 OK
Content-Type:application/json

{
  "RequestId" : "473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E"
}

Error codes

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

HTTP status code

Error code

Error message

Description

403

Forbidden.Unauthorized

A required authorization for the specified action is not supplied.

The error message returned because you are not authorized to perform the operation.

404

InvalidDataDiskSnapshotId.NotFound

Snapshot "XXX" does not exist.

The error message returned because the specified snapshot does not exist.

400

InvalidDataDiskSnapshotId.SizeNotSupported

The capacity of snapshot "XXX" exceeds the size limit of the specified disk category.

The error message returned because the size of the specified snapshot exceeds the maximum size allowed for the specified disk.

404

InvalidImageId.NotFound

The specified image does not exist.

The error message returned because the specified image does not exist.

400

InvalidKeyPairName.NotFound

The specified KeyPairName does not exist in our records.

The error message returned because the name of the specified key pair does not exist.

400

InvalidNetworkType.ForRAMRole

RAMRole can’t be used For classic instance.

The error message returned because the network type of the instance is classic. The classic network does not support RamRoleName.

400

InvalidParamter

The specified value of parameter is not valid.

The error message returned because the value that you specified for a parameter is invalid.

400

InvalidScalingConfigurationName.Duplicate

The specified value of parameter is duplicated.

The error message returned because the specified scaling configuration name already exists.

400

InvalidSecurityGroupId.IncorrectNetworkType

The network type of specified Security Group does not support this action.

The error message returned because the network type of the specified security group is different from the network type of the scaling group.

400

InvalidSecurityGroupId.VPCMismatch

The specified security group and the specified virtual switch are not in the same VPC.

The error message returned because the specified security group and vSwitch are not in the same VPC.

400

InvalidTags.KeyValue

The specified tags key/value cannot be empty.

The error message returned because no value is specified for the Tags parameter.

400

InvalidTags.ListSize

The specified tags list size cannot be more than "20".

The error message returned because the maximum number of tags that can be specified for the instance is reached.

400

InvalidUserData.Base64FormatInvalid

The specified parameter UserData must be base64 encoded.

The error message returned because the specified user data is not encoded in Base64.

400

InvalidUserData.SizeExceeded

The specified parameter UserData exceeds the size.

The error message returned because the size of user data exceeds the upper limit.