All Products
Search

This Product

    Dedicated Host:List of operations by function

    Document Center

    Dedicated Host:List of operations by function

    Last Updated:Feb 06, 2026

    API standard and pre-built SDKs in multi-language

    This product (Ecs/2014-05-26) OpenAPI adopts an RPC-style signature mechanism. For implementation details, please refer to the Signature Mechanism documentation.
    To streamline development, we provide official SDKs for major programming languages. Using the SDK allows you to call APIs directly without worrying about low-level details such as request signatures, significantly lowering the barrier to entry and reducing integration complexity.

    Custom signature

    If your use case requires direct API integration with custom signatures, consult our technical support team first. Join our DingTalk support group (147535001692) to receive expert guidance.

    Before you begin

    An Alibaba Cloud account has full administrative privileges. A compromised AccessKey pair exposes all associated resources to unauthorized access, posing a significant security risk. To call APIs securely, create a Resource Access Management (RAM) user with API access only, configure its AccessKey pairs, and implement the principle of least privilege (PoLP) through RAM policies. Use the Alibaba Cloud account only when its permissions are explicitly required for specific scenarios.

    Snapshots

    APITitleDescription
    OpenSnapshotServiceOpenSnapshotServiceActivate the snapshot service.
    DescribeAutoSnapshotPolicyAssociationsDescribeAutoSnapshotPolicyAssociationsQueries association relationships of automatic snapshot policies.
    LockSnapshotLockSnapshotLock the snapshot in compliance mode to prevent it from being accidentally or maliciously deleted. During the snapshot lock period, no user can delete it.
    DescribeLockedSnapshotsDescribeLockedSnapshotsQueries the lock information of a snapshot, such as snapshot lock status and lock configuration.
    UnlockSnapshotUnlockSnapshotUnlock snapshots that are locked in compliance mode but are still in a cooling-off period. If the snapshot is locked in compliance mode and the cooling-off period has ended, it cannot be unlocked.

    Deployment sets

    APITitleDescription
    ModifyInstanceDeploymentModifyInstanceDeploymentChanges the deployment set of an Elastic Compute Service (ECS) instance or migrates an ECS instance to a dedicated host. You can change the instance type of an ECS instance when you migrate the instance.

    Dedicated hosts

    APITitleDescription
    AllocateDedicatedHostsAllocateDedicatedHostsCreates pay-as-you-go or subscription dedicated hosts. A dedicated host is a physical server dedicated to a single tenant. You can create Elastic Compute Service (ECS) instances on a dedicated host and view the attributes of a dedicated host.
    DescribeDedicatedHostsDescribeDedicatedHostsQueries the details of one or more Dedicated Hosts (DDHs). You can call this operation to obtain information about a DDH, including the physical performance specifications, machine code, service status, and the list of created ECS instances. You can specify relevant parameters, such as DDH IDs, DDH cluster IDs, hostname, and status, to query the required DDH details. This helps you efficiently manage and optimize cloud computing resources.
    DescribeDedicatedHostTypesDescribeDedicatedHostTypesQueries the details of dedicated host types supported in a region, or the Elastic Compute Service (ECS) instance families supported by a specific dedicated host type.
    ModifyDedicatedHostAttributeModifyDedicatedHostAttributeModifies the information about a dedicated host, such as the name, description, and instance migration policy that is applied when the dedicated host fails.
    ModifyDedicatedHostsChargeTypeModifyDedicatedHostsChargeTypeChanges the billing method of dedicated hosts.
    DescribeDedicatedHostAutoRenewDescribeDedicatedHostAutoRenewQueries the auto-renewal status of one or more subscription dedicated hosts.
    ModifyDedicatedHostAutoRenewAttributeModifyDedicatedHostAutoRenewAttributeEnables or disables auto-renewal for one or more subscription dedicated hosts.
    RenewDedicatedHostsRenewDedicatedHostsRenews one or more subscription dedicated hosts.
    ModifyDedicatedHostAutoReleaseTimeModifyDedicatedHostAutoReleaseTimeSets the automatic release time for a pay-as-you-go dedicated host or cancels its automatic release.
    RedeployDedicatedHostRedeployDedicatedHostMigrates Elastic Compute Service (ECS) instances from a failed dedicated host.
    ReleaseDedicatedHostReleaseDedicatedHostReleases a pay-as-you-go Dedicated Host or an expired subscription Dedicated Host.
    CreateDedicatedHostClusterCreateDedicatedHostClusterCreates a dedicated host group.
    ModifyDedicatedHostClusterAttributeModifyDedicatedHostClusterAttributeModifies the information of a dedicated host group, including the name, description, and properties.
    DescribeDedicatedHostClustersDescribeDedicatedHostClustersQueries the details of one or more dedicated host groups.
    DeleteDedicatedHostClusterDeleteDedicatedHostClusterDeletes a dedicated host group. Before you call the API operation, you must migrate the dedicated hosts in the host group to another host group.

    Other

    APITitleDescription
    EnableNetworkInterfaceQoSEnableNetworkInterfaceQoSEnable or modify Elastic Network Interface (ENI) QoS rate limit settings
    DisableNetworkInterfaceQoSDisableNetworkInterfaceQoSDisables Elastic Network Interface (ENI) QoS speed setting.