ApsaraDB for MyBase is a dedicated cloud database cluster that gives you the resource control of self-managed infrastructure with the reliability of a managed service. Each dedicated cluster runs on a dedicated pool of physical hosts—deploy MySQL, SQL Server, or PostgreSQL instances across those hosts, and shift workloads between hosts as your needs change.
How it works
A dedicated cluster is a private resource pool of hosts. You deploy database instances on those hosts and manage resource distribution across the cluster.
Hosts as the billing unit: When hosts use local SSDs, you pay for the hosts—not for individual database instances.
Flexible instance placement: Deploy instances across hosts based on workload patterns. Set a resource allocation policy—Balanced Allocation spreads instances evenly; Compact Allocation packs them onto fewer hosts.
Live workload migration: Move a single instance or all instances from one host to another. If a host runs hot, migrate its workloads to idle hosts to rebalance the cluster.
Overcommit ratio: Set an overcommit ratio on specific resources to push host utilization higher and reduce idle capacity.
Capabilities
| Capability | Detail |
|---|---|
| Flexible resource scheduling | Deploy and rebalance instances across hosts without downtime. Migrate a single instance, migrate all instances off a host, or change the allocation policy (Balanced Allocation or Compact Allocation) as workload patterns evolve. |
| OS and database permissions | Get both database-level and OS-level permissions on your hosts. Connect via a bastion host or webshell—both keep host access auditable and secure. |
| Cost efficiency | Reduces monthly database costs by approximately 50% compared to self-managed databases. |
| Enterprise-class database engines | Runs on the in-house AliSQL and Tair engines, delivering high stability, high performance, and high availability, with built-in backup, restoration, and audit capabilities. |
For a detailed feature comparison against self-managed databases, see Advantages of ApsaraDB for MyBase over self-managed databases.