Change the Shape of an Instance

A shape is a resource profile that specifies the number of OCPUs and the amount of memory to be allocated to an instance in Oracle Cloud Infrastructure Compute Classic. The shape determines the type of disk drive that your instance uses.

You specify the shape of an instance while creating the instance. However, if your instance is managed by an orchestration, then you can change the shape of an instance even after the instance has been created. This is useful if you find that your application workload has increased and you would like to add OCPUs and memory to your instance.

1. Sign in to the Compute Classic console.
2. On the Instances page, identify and note the name of the instance that you want to update.
3. Go to the orchestration of the instance for which you want to change the shape.
4. From the menu, select Suspend.
5. In the Suspend Orchestration confirmation window, click Yes.
   The status of the orchestration changes to Suspending. After all the nonpersistent objects have been deleted, the status of the orchestration changes to Suspended.
6. After the orchestration status changes to Suspended, from the menu, select Update.
7. On the orchestrations details page, in the Instance section, go to the instance that you want to modify. From the menu, select Properties.
8. In the Object Properties dialog box, ensure that the Persistent check box isn’t selected. If it is selected, deselect it, then click Update. This ensures that the status of the instance changes to Inactive.
9. On the orchestrations details page, in the Instance section, go to the instance that you want to modify. From the menu, select Update.
10. In the Shape field, select the shape that you want to use for the VM.
11. Click Update.
    The orchestration is updated with the specified shape.
12. Start the orchestration.
    The orchestration is started and the instance is re-created using the specified shape.

To verify the shape your instance uses, you can view the appropriate orchestration. Alternatively, go to the Instances page and view the details of the instance.