Summary of "What is vSAN? Part 2. Creating the vSAN Cluster. Step by Step"

Summary of “What is vSAN? Part 2. Creating the vSAN Cluster. Step by Step”

This video is a detailed tutorial on setting up a VMware vSAN cluster, focusing on both manual configuration and using the vSAN cluster creation wizard. It is part two of a series by Stephen, who guides viewers through the practical steps of creating a vSAN cluster and configuring its datastore in a lab (nested) environment.

Key Technological Concepts and Features Covered

vSAN Cluster Setup Approaches
- Manual setup: Step-by-step creation of port groups, VMkernel adapters, cluster creation, and disk claiming.
- Wizard-based setup: Using the vSAN cluster creation wizard to automate networking, host addition, and disk group creation.
Environment Details
- Nested lab environment using VMs on VMware Workstation.
- Hosts each have a 50 GB disk for cache tier and two 100 GB disks for capacity tier.
- Use of a distributed virtual switch with multiple VMkernel adapters for management, vMotion, and vSAN traffic.
Networking Configuration
- Creation of a dedicated port group for vSAN on the distributed switch.
- Assignment and configuration of VMkernel adapters for vSAN traffic.
- Discussion of VLAN tagging/trunking and MTU size (jumbo frames, recommended 9000 bytes in production).
- Teaming and failover policies for network adapters.
Cluster Creation and Configuration
- Creation of a new cluster with vSAN enabled.
- Recommendation to enable HA (High Availability) only after vSAN is configured.
- Explanation of vSAN licensing and evaluation mode.
- Disk claiming process: identifying disks, marking flash storage, assigning disks to cache or capacity tiers.
- Deployment of vSphere Cluster Services (vCLS) VMs as part of cluster setup.
vSAN Datastore Use
- Creation of virtual machines on the vSAN datastore.
- Use of default vSAN storage policies (e.g., failures to tolerate = 1).
Advanced vSAN Settings and Features
- Data services including encryption options (at rest and in transit).
- Space efficiency technologies: deduplication and compression.
- Impact of enabling deduplication and compression on disk groups and cluster operations.
- Warning about risks when enabling “allow reduced redundancy” during rolling format.
- Explanation of RAID 5/6 support with three hosts in vSAN 8’s extended storage architecture.
- Object repair timer and other cluster settings briefly mentioned.
Wizard-Based Cluster Setup
- Step-by-step use of the vSAN cluster creation wizard.
- Wizard automates creation of distributed switch, port groups, VMkernel adapters, disk claiming.
- IP address auto-fill feature for VMkernel ports.
- Selection of physical adapters for the distributed switch.
- Wizard provides a summary and status updates during setup.
- Handling of warnings related to non-certified storage controllers in a nested lab environment.
Recommendations and Best Practices
- Use large MTU sizes (9000) for vSAN networks in production.
- Plan compression/deduplication settings before deploying VMs to avoid performance hits and complex rolling formats.
- Understand the difference between manual and wizard setup; manual knowledge is useful if wizard is disabled.
- Consider encryption and space efficiency features carefully based on environment needs.
- Monitor cluster health and warnings (e.g., Skyline Health, controller certification).

Guides and Tutorials Provided

Manual creation of vSAN port groups and VMkernel adapters.
Manual cluster creation and disk claiming for vSAN.
Using the vSAN cluster creation wizard to automate setup.
Configuring network teaming and failover policies.
Assigning storage roles to disks (cache vs capacity).
Creating a VM on the vSAN datastore.
Overview of vSAN cluster advanced settings (encryption, deduplication, compression).
Explanation of vSAN alerts and health checks in a lab environment.

Main Speaker / Source

Stephen (YouTube content creator) — provides a hands-on walkthrough and explanations throughout the video.

Overall, this video serves as a comprehensive step-by-step tutorial for VMware vSAN cluster creation, comparing manual and wizard-based methods, with practical tips on networking, disk management, and cluster settings, aimed at both lab and production environments.