Dedicated Host (DDH) is a specialized solution that Alibaba Cloud provides for enterprise customers. It offers highly cost-effective features, such as dedicated physical resources, flexible deployment, and rich configurations. DDH can reduce the total cost of ownership (TCO) for enterprises to migrate resources to the cloud.
A dedicated host is a cloud host whose physical resources are dedicated to a single tenant. As the only tenant of a host, you do not need to share its physical resources with other tenants. You can obtain the physical attributes of the hosts, including the number of CPUs (number of sockets), number of physical CPU cores, and memory size. You can also create Elastic Compute Service (ECS) instances of an instance family that is compatible with the host specifications. For more information about dedicated host types, see Dedicated host types.
DDH provides automatic deployment and host association, which allows you to flexibly deploy your workloads. For more information, see Features.
DDH meets strict security compliance requirements and allows you to bring your own licenses (BYOL) to the cloud. This solution provides robust security and allows you to reduce the migration cost of your workloads. For more information, see Scenarios.
ECS instances running on dedicated hosts have the same performance as those running on shared hosts. For more information, see Benefits.
For information about Alibaba Cloud services that are supported by ECS instances running on dedicated hosts, see What is ECS?
ECS instances on dedicated hosts differ from ECS instances on shared hosts. For more information, see Comparisons of ECS instances on a dedicated host and a shared host.
For information about the limits on the use of DDH resources, see Limits.
- Create ECS instances on a dedicated host
- Migrate ECS instances between different dedicated hosts
- Migrate ECS instances from a shared host to a dedicated host
- Upgrade or downgrade a subscription ECS instance
- Switch the billing method from pay-as-you-go to subscription
- Enable auto-renewal or Manual renewal of a dedicated host
DDH supports subscription-based billing. For more information, see Billing overview.