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VMware Cloud Foundation integrates vSphere, vSAN, and vRealize Suite to provide a unified infrastructure stack.

The test case must validate all three requirements: maintaining 1,000 TPS during business hours (REQ001), using automatic DRS and HA (REQ002), and ensuring maintenance occurs outside business hours (REQ003, implying minimal disruption during business hours).
Let's assess each:
Option A: Trigger a vSphere High Availability (HA) failover activity
HA failover (e.g., host failure) tests automatic VM restarts (REQ002) and ensures TPS (REQ001) remains at 1,000 during business hours under failure conditions (excluding DR, as this is intra-site). The VCF 5.2 Administration Guide recommends HA testing to validate availability, making this valid.
Option B: Trigger a vSAN disk group cache drive failure
A cache drive failure in vSAN tests data resilience and HA's ability to restart VMs if needed (REQ002), while monitoring TPS (REQ001) during business hours. The vSAN Administration Guide supports this as a standard test for vSAN performance and recovery, aligning with the requirements.
Option C: Trigger fully automatic DRS vMotion activity
Fully automatic DRS triggers vMotion to balance loads (REQ002), testing TPS (REQ001) during business hours without disruption. While not maintenance, it validates DRS automation's impact on performance, per the vSphere Resource Management Guide, making it a valid test.
Option D: Trigger a vCenter upgrade workflow
A vCenter upgrade is a planned maintenance activity (REQ003) that should occur outside business hours. Performing it during business hours to monitor TPS contradicts REQ003 and isn't a typical test for DRS/HA (REQ002) or application performance (REQ001), as it affects management, not workloads directly. The VCF 5.2 Administration Guide treats upgrades as separate from runtime validation.
Conclusion:
Option D is not a valid test case, as it violates REQ003 and doesn't directly validate REQ001 or REQ002 in a runtime context.
Reference: VMware Cloud Foundation 5.2 Administration Guide (docs.vmware.com): HA and vSAN Testing.
vSphere Resource Management Guide (docs.vmware.com): DRS Automation Testing.
vSAN Administration Guide (docs.vmware.com): Disk Failure Scenarios.

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