1Z0-1072-25 Question 205
Select 2You manage a mission-critical database environment running on Oracle Cloud Infrastructure (OCI). The database data files are distributed across two block volumes for performance reasons. The business requires nightly crash-consistent backups of the entire environment as well as the ability to create a new test environment quickly in case of emergent feature testing. Which two actions should you perform? (Choose two.)
- A
- Create a volume group that includes both block volumes, then perform a 'Create Backup' operation on that group.
- B
- Replicate each block volume to Object Storage before scheduling individual backups for each volume.
- C
- Use the 'Create Clone' feature on the volume group for rapid provisioning of a test environment.
- D
- Schedule separate backups for each volume to achieve crash-consistency.
Show answer and explanation
Correct answers: A, C
Explanation
Volume groups in OCI simplify the management of multiple block volumes used by a single application or database. By creating a volume group, you can initiate consistent backups of all volumes in one operation (a crash-consistent backup) and leverage the 'Create Clone' feature for quick, test-ready copies. Refer to Oracle Cloud Infrastructure Block Volume and Volume Groups documentation for best practices on grouping volumes, creating backups, and managing clones.
- A. Correct.
Option 1 is correct. By grouping both block volumes into a single volume group, you can perform a single backup operation that captures a crash-consistent view of all volumes. This simplifies management and ensures the database files stored across multiple volumes are consistently backed up at once.
- B. Incorrect.
Option 2 is incorrect. Replicating block volumes to Object Storage before backing them up individually does not guarantee a single crash-consistent backup across volumes. It also adds complexity and is not the recommended approach for ensuring quick recovery or simplified test environment creation.
- C. Correct.
Option 3 is correct. OCI allows you to create clones of volume groups quickly. This is especially useful when you need to spin up a test environment on short notice, as it provides a near-instant copy of the entire data set without disrupting the production environment.
- D. Incorrect.
Option 4 is incorrect. Scheduling separate backups for each volume can lead to inconsistencies if writes occur during backup creation on different volumes at different times. A volume group backup is the recommended way to ensure crash consistency across multiple volumes used by the same database.