Becoming a vSAN Specialist: Section 3 – vSAN Configuration

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In this section, I will go over the following objectives found within the VMware vSAN Specialist Blueprint: Objective 3.1 – Identify physical network requirements

Objective 3.1 – Identify physical network requirements

Let’s start with the network basics.

  1. Dedicated network port for vSAN traffic
  2. 10GB (dedicated or shared) highly recommended, required for all flash deployments) <1ms latency
  3. 1GB dedicated for hybrid setups. Real work environments would suffer with 1GB (Minus ROBO) <1ms latency
  4. vSAN VMkernal port required for each ESXi host, even if it isn’t contributing storage
  5. ESXi hosts within a vSAN cluster must all utilize Layer 2/3 upstream

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Becoming a vSAN Specialist: Section 2 – vSAN Fundamentals

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In this section, I will go over the following objectives found within the VMware vSAN Specialist Blueprint: Section 2 – vSAN Fundamentals

Objective 2.1 – Provide a high-level description of vSAN

Introduction to vSAN

vSAN is an enterprise-class software storage solution built directly into the VMware platform. It runs on commodity hardware (x86) or vSAN Ready nodes.  What does this mean? Instead of having a separate software solution controlling the storage, the actual ESXi hosts alongside with vSphere have the vSAN technology (Software Defined Storage) built directly into the kernel/software. This software then utilizes the commodity hardware (compute, storage, network) within the host/appliance to create the perfect marriage of virtualization and software defined storage. It utilizes storage policies to intelligently place VM objects on underlying local storage. This is the special sauce that makes vSAN so great. It automates storage on many levels, which in turn leads to significant simplification with regards to how storage is provisioned and managed.

Why is this important? Instead of having to buy separate software, you can utilize this software since it’s already a part of vSphere. This in combination with local disk installed within x86 hardware makes the vSAN solution a truly modern and software defined solution. This reduces costs and complexity.

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