Batch Reinstalling OSs

Scenarios

Reinstall OSs of ECS instances in batches on COC.

Precautions

If there are instances that are not stopped, select Stop now.

If no instance is stopped, submit the task.

Procedure

1. Log in to COC.
2. In the navigation pane on the left, choose Resource O&M > Resource Batch Operations, and click Reinstall OS in ECS Operations.
3. On the Reinstall OS page, click Add.
   Figure 1 Adding instances
   

4. Select Batch Policy.
   • Automatic: The selected hosts are automatically divided into multiple batches based on the preset rule.
   • Manual: You can manually create multiple batches and add instances to each batch as required.
   • No batch: All hosts to be executed are in the same batch.

5. Set Suspension Policy.
   

   • You can set the execution success rate. When the number of failed hosts reaches the pre-set suspension threshold figure, the service ticket status becomes abnormal and the service ticket stops being executed.
   • The value range is from 0 to 100 and can be set to one decimal place.

6. Set Login Mode.
   Login mode:

   • Password: You can use the original ECS password or enter a new one.
   • Password pair: You can select a key pair in Key Pair Service .
   • Reset password: Before logging in to the ECS, reset the password.

7. Click Submit.
   Figure 2 Reinstalling OSs
   

8. In the Confirm Execution dialog box, click OK.
   Figure 3 Confirming the execution
   

9. View the execution result.
   Figure 4 Viewing the execution result
   

10. If the execution result is abnormal, you can click the Retry button in the Operation column or the Batch Retry button above the list to re-execute the failed one or more tasks. You can also click the Cancel button in the Operation column or Batch Cancel button above the list to skip one or more abnormal tasks.
    Figure 5 Canceling or retrying batch tasks