3V0-21.23 Exam Dumps - VMware VCAP-DCV Design 2024 Questions and Answers

Create a dedicated storage network:

Creating a dedicated storage network ensures that storage traffic is isolated from general network traffic, improving both security and performance. This design choice helps prevent unauthorized access, minimizes the potential for network congestion, and ensures that storage traffic is not impacted by other workloads or services on the network.

Create a dedicated VLAN:

By placing storage traffic on its own VLAN, the architect ensures further network segmentation. This VLAN can be used exclusively for NFS traffic, improving both security and performance. It also allows for easier management and monitoring of storage traffic, while helping prevent unauthorized access from other parts of the network.

Six 10TB VMFS datastores will be configured on each site for all production workloads.

This choice is based on the need to distribute production workloads across multiple datastores while ensuring that each datastore is large enough to accommodate the space required by the workloads. Given the average sizes of the virtual machines and the growth and snapshot overhead, six 10TB VMFSdatastores would be appropriate for production workloads, ensuring scalability while minimizing the number of LUNs.

Each 10TB LUN will be configured as a VMFS datastore.

VMFS (Virtual Machine File System) is the standard choice for vSphere environments when using Fibre Channel LUNs. It provides the necessary features, such as concurrency and high-performance access, for production workloads. This option is appropriate given that the storage array uses Fibre Channel for connection and VMFS is the standard file system for such configurations.

Two 10TB VMFS datastores will be configured on each site for all DMZ workloads.

The DMZ workloads are smaller in number and storage requirements compared to the production workloads, so configuring two 10TB VMFS datastores for DMZ workloads will provide enough capacity while maintaining logical isolation. This approach also minimizes the number of LUNs required to meet the storage growth needs.

Fibre Channel is the Recommended Storage Technology for the Brownfield vSphere Deployment

Given the constraints of the brownfield site, the existing infrastructure, and the approved budget, the architect should recommend leveraging the existing Fibre Channel storage technology.

Here's the reasoning based on the provided requirements:

Utilize Existing Storage Array:The crucial constraint is that the budget is only for new server and network hardware, explicitly excluding the purchase of a new storage array. The solutionmustutilize the existing storage array.

Existing Fibre Channel Connectivity:The current storage array is already connected via Fibre Channel with a dedicated SAN fabric (2 x 8 Gbps interfaces). This existing infrastructure can be directly leveraged with new servers equipped with Fibre Channel HBAs.

Budget Alignment:Reusing the existing Fibre Channel SAN aligns with the budget approval for only new server and network hardware (to connect the servers to the existing SAN). Introducing a different storage technology like iSCSI or NFS as the primary method would likely require significant network infrastructure changes or additions beyond standard server networking, which may not be covered by the approved budget for "new server and network hardware only." While the arraycansupport NFS, the existing high-speed, dedicated storage connectivity is Fibre Channel.

Incompatibility with vVols:The existing storage array does not support vSphere API for Storage Awareness (VASA), which is a mandatory requirement for implementing vSphere Virtual Volumes (vVols). Therefore, vVols is not a viable option with the current storage hardware.

vSAN Not Applicable to Existing Array:VMware vSAN is a software-defined storage solution that pools local storage from ESXi hosts. It does not directly utilize external Fibre Channel SAN arrays as its primary storage pool in the standard configuration. Implementing vSAN would require a significant investment in server local storage, which falls outside the scope of using theexisting storage array.

Manageability:The existing vSphere administration team is responsible for operational management. Fibre Channel storage is a mature and commonly used storage technology in vSphere environments, meaning the existing team is likely to have the necessary skills to manage it.

While the existing arraycanbe configured for NFS, leveraging the existing Fibre Channel connectivity is the most direct and budget-aligned approach given that the SAN fabric and FC interfaces are already in place and the budget is restricted to server and network hardware for connectivity.

Based on VMware vSphere 8.x Advanced documentation and VMware Cloud Foundation (VCF) resources, the architect needs to identify the benefit of using workload domains in a VCF environment. Workload domains are a core construct in VCF, designed to simplify the deployment and management of Software-Defined Data Center (SDDC) components, including vSphere, vSAN, NSX, and vCenter.

Analysis of Workload Domains in VCF:

Workload Domains: In VCF, workload domains are logical units that group compute, storage, and networking resources to host specific workloads (e.g., production, development, or DMZ). They include a vSphere cluster, vSAN storage, NSX networking, and a dedicated vCenter instance, managed through the SDDC Manager.

Purpose: Workload domains provide isolation, scalability, and simplified management by automating the deployment and configuration of SDDC components according to VMware’s best practices.

Evaluation of Options:

A. Workload domains require separate instances of vCenter, decreasing complexity and management overhead:

Why incorrect: While workload domains do include a dedicated vCenter instance for each domain to ensure isolation and independent management, this increases management overhead rather than decreasing it. Each vCenter instance requires separate administration, monitoring, and patching, which adds complexity compared to a single vCenter managing multiple clusters. This is not a benefit.

VMware Cloud Foundation documentation notes that separate vCenter instances per workload domain enhance isolation but increase management tasks.

B. Workload domains allow for manual provisioning of vSphere clusters using the SDDC Manager:

Why incorrect: Workload domains are provisioned automatically through the SDDC Manager, not manually. The SDDC Manager automates the creation, configuration, and deployment of workload domains based on predefined templates and policies, reducing manual effort. Manual provisioning contradicts VCF’s automation-centric approach.

A business outcome refers to a result or impact that directly contributes to the strategic goals of the organization, typically focusing on long-term objectives or future benefits. In this case, building a strong foundation for future projects, including cloud infrastructures, aligns with the business goal of positioning the organization for future success and scalability. This outcome is about preparing the organization for the future, which is a key business-driven result.