> For the complete documentation index, see [llms.txt](https://docs.vergeos-demo.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.vergeos-demo.com/learn-the-platform/module-2-sizing-and-design/02-sizing-design.md).

# Overview

## Learning Objectives

By the end of this module, you will be able to:

* **Evaluate customer requirements** and recommend an appropriate VergeOS topology (HCI or UCI -- including the hybrid two-cluster UCI variant, HCI + Dedicated Compute)
* **Size hardware** for HCI and UCI deployments based on workload profiles
* **Use reference architectures** as starting points for customer designs
* **Create a bill of materials** for a VergeOS deployment proposal

## Prerequisites

* Completion of [Module 1: Architecture Fundamentals](/learn-the-platform/module-1-architecture-fundamentals/01-architecture.md) -- you should understand HCI vs UCI trade-offs, node types, and cluster concepts

## Estimated Time

**2 hours** (1 hour reading + 1 hour lab)

## Topics

* [**Hardware Requirements**](/learn-the-platform/module-2-sizing-and-design/01-hardware-requirements.md) — Minimum and recommended specs for controller nodes, storage nodes, and compute-only nodes. CPU, memory, disk, and NIC considerations.
* [**Reference Architectures**](/learn-the-platform/module-2-sizing-and-design/02-reference-architectures.md) — Three deployment models -- HCI, HCI + Dedicated Compute (the hybrid two-cluster UCI variant), and UCI -- plus guidance for edge and CSP scenarios.
* [**Customer Scoping**](/learn-the-platform/module-2-sizing-and-design/03-customer-scoping.md) — How to gather requirements, translate workload profiles into resource estimates, and select the right topology.
* [**Lab: Design Exercise**](/learn-the-platform/module-2-sizing-and-design/lab.md) — Given a customer scenario, produce a hardware recommendation and topology diagram.


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