VCP-VMC 2024 Question 231
Select 3You are managing a VMware Cloud infrastructure and need to create a snapshot of a virtual machine (VM) running a critical database application. The snapshot will be used as part of a troubleshooting process. Which of the following considerations should you make before taking the snapshot to ensure minimal performance impact and data consistency?
- A
Quiesce the guest file system to ensure application consistency.
- B
Verify that the VM has enough available storage for the snapshot delta files.
- C
Place the VM in maintenance mode before taking the snapshot.
- D
Limit the duration of snapshot retention to avoid performance degradation.
- E
Power off the VM to take the snapshot.
Show answer and explanation
Correct answers: A, B, D
Explanation
When managing VM snapshots in VMware Cloud environments, it is critical to ensure data consistency and avoid unnecessary performance impacts. Quiescing the file system ensures the snapshot captures the VM in a consistent state, especially for applications like databases. Checking for sufficient storage prevents operational issues caused by large snapshot delta files, and limiting the retention period avoids performance degradation. Maintenance mode and powering off the VM are not required to create snapshots, making them incorrect options.
- A. Correct.
Quiescing the guest file system ensures that the snapshot captures a consistent state of the application and data, especially for database applications.
- B. Correct.
Available storage is crucial because snapshot delta files grow over time, and insufficient storage can lead to performance and operational issues.
- C. Incorrect.
Placing the VM in maintenance mode is not required for creating a snapshot. Maintenance mode is typically used for host-level operations, not VM snapshot processes.
- D. Correct.
Keeping snapshots for a limited duration minimizes performance impacts caused by increased I/O and larger delta files.
- E. Incorrect.
Powering off the VM is not necessary for taking a snapshot. Snapshots can be taken on running VMs, and quiescing the file system can ensure data consistency without requiring a VM power-off.