VMware’s design methodology (per VCF 5.2) uses design qualities to categorize requirements based on their focus. The qualities include Availability, Manageability, Performance, Recoverability, and Security. Let’s classify the two requirements:
Requirement 1: In the event of a site-level disaster, the solution must enable all production workloads to be restarted in the secondary siteThis describes the ability to recover workloads after a site failure, focusing on restoring operations in a secondary location. TheVCF 5.2 Architectural Guidealigns this withRecoverability, which covers disaster recovery (DR) and the restoration of services post-failure.
Requirement 2: In the event of a host failure, workloads must be restarted in priority orderThis involves restarting workloads after a host failure (e.g., via vSphere HA) with prioritization, emphasizing recovery processes. While HA is often linked to Availability, the focus here on “restarting in priority order” shifts it to Recoverability, as it addresses how the system recovers from a failure, per VMware’s design quality definitions.
Option A: AvailabilityAvailability ensures system uptime and fault tolerance (e.g., HA preventing downtime). While host failure recovery involves HA, the emphasis on “restarting” and site-level DR points more to Recoverability than ongoing availability.
Option B: ManageabilityManageability focuses on ease of administration (e.g., monitoring, automation). Neither requirement relates to operational management but rather to failure recovery processes.
Option C: PerformancePerformance addresses speed and efficiency (e.g., latency, throughput). These requirements don’t specify performance metrics, focusing instead on recovery capabilities.
Option D: RecoverabilityRecoverability ensures the system can restore services after failures, encompassing both site-level DR (secondary site restart) and host-level recovery (prioritized restarts). TheVCF 5.2 Design Guideclassifies DR and failover recovery under Recoverability, making it the best fit.
Conclusion:Both requirements align withRecoverability, as they focus on restoring workloads after failures (site-level and host-level), per VMware’s design quality framework.References:
VMware Cloud Foundation 5.2 Architectural Guide(docs.vmware.com): Design Qualities and Recoverability Section.
VMware Cloud Foundation 5.2 Design Guide(docs.vmware.com): Classifying Requirements by Design Quality.
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