2V0-21.23 Question 151
Single answerYou are tasked with designing a VMware vSphere environment for a medium-sized enterprise. The company has strict requirements for high availability (HA) and disaster recovery (DR) while minimizing costs. They currently operate a single data center but plan to expand to a secondary site for DR within the next year. Which design choice would best meet the company’s requirements?
- A
Implement vSphere High Availability (HA) and vSphere Replication within the single data center and plan for Site Recovery Manager (SRM) in the secondary site.
- B
Use VMware Fault Tolerance (FT) for all critical virtual machines (VMs) to ensure zero downtime and replicate data manually to the secondary site.
- C
Leverage vSAN stretched clusters across both data centers to ensure synchronous replication and automatic failover.
- D
Implement vSphere HA in the single data center and rely on nightly backups to external storage for disaster recovery.
Show answer and explanation
Correct answer: A
Explanation
The company's requirements for high availability and disaster recovery, along with their plan to expand to a secondary site within a year, make the combination of vSphere HA and vSphere Replication the most suitable choice. This design minimizes costs while providing local HA and a clear path for implementing DR with SRM once the secondary site is operational.
- A. Correct.
This option is the best choice since vSphere HA provides local high availability in the primary data center, and vSphere Replication is a cost-effective way to replicate data to the secondary site for DR purposes. Site Recovery Manager (SRM) can later automate the failover process when the secondary site becomes operational, aligning with the company’s plans.
- B. Incorrect.
While VMware Fault Tolerance (FT) ensures zero downtime, it is resource-intensive and not cost-effective for all critical VMs. Additionally, manual data replication to the secondary site does not provide robust disaster recovery capabilities.
- C. Incorrect.
vSAN stretched clusters provide excellent HA and DR capabilities but require both data centers to be operational and connected with low-latency, high-bandwidth links, which is not the case in this scenario as the secondary site is not yet ready.
- D. Incorrect.
While vSphere HA provides local high availability, relying on nightly backups alone does not meet the company's disaster recovery requirements, as this approach can result in significant data loss and recovery time in the event of a site failure.