1Z0-1123-25 Question 120
Select 2Your company hosts a mission-critical database on an OCI Block Volume in the primary Phoenix region. You are asked to implement asynchronous block volume replication to the Ashburn region for disaster recovery, ensuring minimal RPO (Recovery Point Objective). Which two actions must you take to properly configure block volume replication for this scenario?
- A
Use the Replicate Volume option in the OCI Console or CLI to select the target region and enable asynchronous replication for the source block volume.
- B
Configure an Incremental Forever Backup policy on the Block Volume to automatically sync backups to the secondary region.
- C
Stop any attached compute instances in the primary region to ensure consistent writes before initiating block volume replication.
- D
Create an IAM policy in the Ashburn region (target) that allows volume replication actions from the Phoenix region (source) across the required compartments.
Show answer and explanation
Correct answers: A, D
Explanation
In OCI, block volume replication is an asynchronous mechanism to replicate data to another region for disaster recovery. While backups use a point-in-time approach, replication continuously transfers changes, reducing the RPO. Setting up the replication involves enabling the feature on the source volume and ensuring you have an appropriate IAM policy in the target region. For more details, refer to Oracle� official documentation on �Block Volume Replication� in the OCI Console and the IAM policy requirements in the Oracle Cloud Infrastructure Documentation.
- A. Correct.
Option 1 is correct. Oracle Cloud Infrastructure provides an explicit 'Replicate Volume' feature to asynchronously replicate a block volume across regions. You enable it through the Console or CLI by choosing the source block volume, specifying the target region, and ensuring asynchronous replication is configured.
- B. Incorrect.
Option 2 is incorrect. Backups (including Incremental Forever) are not the same as the asynchronous block volume replication feature. They create point-in-time backups, rather than continuously replicating the data in near-real time.
- C. Incorrect.
Option 3 is incorrect. It is not mandatory to stop the instance for asynchronous replication. OCI Block Volume Replication is designed to handle data replication while the volume is in use, reducing downtime requirements.
- D. Correct.
Option 4 is correct. Properly configured IAM policies in the target region are critical for allowing replication requests from the source region. You need the correct permission (such as 'manage volume-replication') for the compartments involved.