1Z0-1123-25 Question 116
Select 2Your organization hosts a critical database on a 2 TB block volume in the us-phoenix-1 region. For disaster recovery purposes, you want to replicate this block volume to the us-ashburn-1 region. You have ensured that the us-ashburn-1 region is subscribed and have created the required IAM policies. Which two actions are necessary to successfully replicate the block volume from Phoenix to Ashburn? (Choose two)
- A
Enable block volume replication on the source volume by selecting 'Create Replica' in the Console and specifying the Ashburn region as the target
- B
Shut down the source instance, detach the block volume, and manually upload the volume data to an Object Storage bucket in the Ashburn region
- C
Create a custom block volume replication policy in the Phoenix region, specify the Ashburn region as the target, and assign the source block volume to that policy
- D
Configure an on-premises iSCSI gateway to mirror the block volume from Phoenix to Ashburn
Show answer and explanation
Correct answers: A, C
Explanation
To replicate an OCI block volume across regions, you can either create a replica directly through the Console or CLI (a one-time setup per volume) or use a replication policy for automatic, scheduled replication. You do not need to detach volumes, shut down instances, or rely on external gateways for replication. See Oracle Cloud Infrastructure Block Volume Replication documentation for detailed steps and best practices.
- A. Correct.
Option 1 is correct. Using the 'Create Replica' feature allows you to replicate the source block volume to the specified target region without detaching the volume or stopping the instance. This is a straightforward approach to enable cross-region DR.
- B. Incorrect.
Option 2 is incorrect. Manual upload to Object Storage is not required for OCI Block Volume Replication and introduces unnecessary operational overhead. Oracle Cloud Infrastructure supports replication directly between regions without detaching the volume or placing it offline.
- C. Correct.
Option 3 is correct. You can create a block volume replication policy that automatically replicates the volume to a target region on a defined schedule. This approach is useful if you want to manage replication programmatically or replicate multiple volumes consistently.
- D. Incorrect.
Option 4 is incorrect. An on-premises iSCSI gateway is not part of OCI's native block volume replication solution. The replication feature works within OCI regions, and you do not need an on-premises component to mirror data between OCI regions.