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VMware 3V0-21.23 Exam - Topic 3 Question 10 Discussion
Topic #: 3
An architect is designing a new vSphere-based solution for a customer.
During a requirement gathering workshop, the following information is provided:
The solution must have a primary and secondary site.
The solution must support a maximum of 1,000 concurrent workloads.
The profile of the workloads are as follows:
- Production Workloads
-- 300 x Small: 1 vCPU, 2GB RAM
-- 400 x Medium: 2 vCPU, 6GB RAM
-- 100 x Large: 4 vCPU, 8GB RAM
- Development Workloads
-- 200 x Small: 1 vCPU, 2GB RAM
The corporate security policy states that, during normal operations, production workloads must be physically segregated from development workloads.
All production workloads are split evenly across the primary and secondary site.
All development workloads run only within the secondary site.
In the event of a disaster affecting workloads in the primary site, the secondary site must be capable of running all production and development workloads.
The vCPU to physical core ratio should be a maximum of 10:1 for production workloads and 20:1 for development workloads.
The solution should provide a minimum of N + 1 resiliency at each component level.
The target physical host hardware platform has already been defined by the company's hardware standards and therefore each host has the following configuration:
-- 2 x 24 physical cores
-- 768GB RAM
-- 2 x 100GB SSD drives
-- 6 x 10GbE network cards
What is the minimum number of hosts required to meet the requirements?
1. Production Workloads:
Total vCPUs required for production:
Total production vCPUs = 300 + 800 + 400 = 1,500 vCPUs
2. Development Workloads:
Total vCPUs required for development:
3. Workload Distribution:
4. vCPU to Physical Core Ratio:
5. Hosts Configuration:
6. Host Calculation:
Production Workloads (750 vCPUs per site):
Development Workloads (200 vCPUs):
7. Resiliency:
8. Total Hosts:
Total hosts required = 4 (primary production) + 4 (secondary production) + 1 (secondary development) + 2 (N + 1) = 12 hosts.
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