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VDCD510 · Question #269

You are the technical designer for a vSphere platform transformation project. After conducting SME interviews and using various platform information-gathering methods, you have created a high-level…

The correct answer is B. Place the application into a single-vApp network D. Configure network I/O control. If you limit the application traffic to a specific dedicated network (that is, a separate VLAN) and using enforced DRS affinity rules, the application traffic will not traverse the ESXi host's physical network interfaces. This will ensure that the impact of the application is…

Create a Design for vSphere 5.x Network

Question

You are the technical designer for a vSphere platform transformation project. After conducting SME interviews and using various platform information-gathering methods, you have created a high-level design document. This document specifies the following:

Requirements:

R1. The solution must not have a single point of failure. R2. Production applications must not have an outage of more than 10 seconds. R3. Data must be based in the UK. R4. There is a 7-year retention policy for contracts. R5. Applications should support existing and developing workloads for the next 3 years' growth. Spec of servers:

Web 1 vCPU, 2 GB RAM, 100 GB storage App 1 vCPU, 4 GB RAM, 100 Gb storage DB 2 vCPU, 16 GB RAM, 750 Gb storage At a late stage in the software development life cycle of a production application developed in- house, an unfortunate issue was identified when the application was deployed to the production vSphere cluster. The production core stacked switch has capacity issues, and this is having a serious impact on all applications for which the switch is providing network services. Within the test system, the application works as intended in the single test VLAN and with a single-host configuration. Which of the following could be tried to help in this situation, from a vSphere perspective? (Choose two)

Options

  • ARedevelop the application for a virtual platform
  • BPlace the application into a single-vApp network
  • CAdd DRS rules to keep network traffic within the same host, where possible
  • DConfigure network I/O control

How the community answered

(38 responses)
  • A
    8% (3)
  • B
    71% (27)
  • C
    21% (8)

Explanation

If you limit the application traffic to a specific dedicated network (that is, a separate VLAN) and using enforced DRS affinity rules, the application traffic will not traverse the ESXi host's physical network interfaces. This will ensure that the impact of the application is minimized, while also ensuring that the application itself is not limited. The application servers already have vCPU settings. This suggests that the system has already being virtualized in both types of environments. Network I/O control could be useful in the event of contention, but the role of a designer would be to plan to prevent contention where possible; other options would be more beneficial. In addition, Requirement 5 specifies that the system should work with workloads over the next 3 years. Network I/O control would suggest contention very early in the platform history. Chapter 4, NetWork - Logical and Physical Design to allow applications to flow

Topics

#network I/O control#vApp network isolation#DRS affinity rules#design requirements analysis

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