This topic lists the specifications of OCP built-in units. Tenants occupy OceanBase cluster resources through units. The specification and number of units determine the resources available to a tenant. You can customize the unit specifications or use built-in specifications described in this topic. Built-in unit specifications cannot be modified.
The following table describes the built-in units in OCP.
Note
For OceanBase V2.0 and later, the minimum supported unit is S1.
| Type name | Minimum number of CPUs | Maximum number of CPUs | Minimum memory | Maximum memory |
|---|---|---|---|---|
| B | 0.25 | 0.25 | 1 GB | 1 GB |
| LogOnlyNormal | 1 | 1 | 2 GB | 2 GB |
| LogOnlySystem | 5 | 5 | 35 GB | 35 GB |
| S0 | 0.5 | 0.5 | 2 GB | 2 GB |
| S1 | 1.5 | 1.5 | 6 GB | 6 GB |
| S2 | 3 | 3 | 12 GB | 12 GB |
| S3 | 6 | 6 | 20 GB | 20 GB |
| S4 | 12 | 12 | 40 GB | 40 GB |