VCF Architecture - Single Site - Consolidated

The Consolidated Architecture for VCF is designed for smaller or simpler deployment scenarios, where a single data center or site is sufficient to handle the infrastructure needs of an enterprise. In this model, all core VCF components are deployed on the same physical infrastructure, including vSphere, vSAN, NSX, and vCenter. This deployment pattern simplifies the overall architecture by reducing the complexity of managing multiple sites or data centers, making it ideal for smaller organizations or pilot environments.

It is perfect for organizations looking for a streamlined, unified platform to run their cloud workloads while minimizing operational overhead.

Key Characteristics:

1. Unified Infrastructure:

   • The VCF Consolidated Architecture integrates multiple VMware technologies into a single infrastructure. These include vSphere, vSAN (for storage), NSX-T (for networking), vCenter (for management), and vRealize Suite (for automation and management).
   • All the VCF components (management plane, control plane, and workload domains) are installed on the same set of physical servers in a single site.

2. Management Domain:

   • The Management Domain is the heart of the VCF architecture and contains the VCF Management components, such as the vCenter Server, NSX Manager, and vRealize Suite.
   • In a Consolidated Architecture, this domain is also typically hosted on the same hardware as the Workload Domains. It serves to manage and operate the cloud infrastructure across the entire site.

3. Workload Domain (WLD):

   • A Workload Domain (WLD) in this architecture is where the actual virtual machines (VMs) or workloads are run. The Consolidated Architecture allows you to host one or more workload domains on the same hardware as the management domain.
   • The vSphere clusters used in the WLD can be based on the same storage and networking resources as the management domain.

4. NSX-T Integration:

   • NSX-T is used to provide networking and security for both the management domain and the workload domains. In the Consolidated Architecture, the same NSX-T instance (manager and controllers) is shared across the entire deployment, ensuring consistent networking and security policies across all domains within the single site.

5. vSAN for Storage:

   • vSAN is typically deployed to provide software-defined storage in the Consolidated Architecture. All data, including VM storage and infrastructure data, is managed by vSAN, which aggregates local storage devices into a single storage pool for the entire site.
   • This setup eliminates the need for a separate, traditional storage array, making it more cost-effective for smaller organizations.

6. Simplified Management:

   • Since all components are located within a single site, management is centralized through the VCF Management Interface (SDDC Manager), which simplifies operations and reduces the administrative overhead of managing multiple sites.
   • Administrators can manage compute, storage, and networking resources from a single interface, and deployment tasks such as patching, upgrades, and provisioning are simplified.

7. Scaling Options:

   • In the Consolidated Architecture, scaling is achieved by adding more hosts to the vSphere cluster in the WLDs. New hosts are integrated with vSAN and NSX to ensure that the infrastructure grows in line with the workload requirements.
   • While the architecture is designed for single-site deployments, it still allows for some degree of flexibility and scalability to handle increasing workload demands.