Download Vsan Witness Appliance May 2026

Select the exact version that matches your vSAN cluster’s version (e.g., 8.0.1, 7.0.3).
Mismatch can cause compatibility issues.

Note: Direct links change with every patch release. Always search for the latest version on Customer Connect rather than using saved links.

Summary: Download the vSphere ISO from VMware Customer Connect, then extract or locate the vSAN Witness Appliance OVA within the "Additional Products" section. Always match versions exactly with your production vSAN cluster.

Reviewing the VMware vSAN Witness Appliance reveals it is a critical, virtualized ESXi host used primarily to provide quorum in 2-node or stretched cluster configurations. By acting as a "tie-breaker," it prevents "split-brain" scenarios where two sites might otherwise lose sync during a network failure. Key Benefits & Use Cases Cost Efficiency:

It eliminates the need for a third physical host in Remote Office/Branch Office (ROBO) or edge environments. Reduced Hardware Requirements:

It can run on a standard vSphere environment outside the main vSAN cluster, requiring only minimal bandwidth (as low as 2 Mbps for 1,000 components). Management Integration:

Because it is a pre-configured ESXi appliance, it is managed directly via the VMware vSphere interface like any other host. Download and Deployment Process

To obtain and set up the appliance, users generally follow these steps: Access the Broadcom/VMware Support Portal to download the OVA file specific to your vSAN version.

Import the OVA into your vCenter environment, ensuring it is placed on a datastore from the vSAN cluster it will be monitoring. Networking:

Configure a dedicated VMkernel adapter for witness traffic, which can typically handle higher latency than standard vSAN data traffic. Registration:

Add the appliance to vCenter as a standalone ESXi host before assigning it to the cluster. Dell Technologies Info Hub Performance & Reliability Recent industry reviews from Gartner Peer Insights

highlight that while vSAN is highly scalable and resilient, the witness appliance setup requires meticulous network planning

to avoid configuration errors. Once established, however, it is praised for its seamless integration with the broader VMware stack. step-by-step guide for configuring the witness traffic on your management network

To download and set up the VMware vSAN Witness Appliance, you must use the Broadcom Support Portal, as VMware downloads have migrated there. Step 1: Download from Broadcom Portal download vsan witness appliance

You can find the appliance by following these steps on the Broadcom Support Portal: Log In: Sign in to your account.

Navigate to Downloads: Select My Downloads from the left-hand sidebar.

Select Product: Choose VMware Cloud Foundation or search for VMware vSphere.

Find vSAN: Under the product selection, click on VMware vSAN and select the version that matches your environment. Access Drivers & Tools: Click the Drivers & Tools tab.

Search for Witness: Type "Witness" in the search bar. Look for the VMware vSAN Witness Appliance entry and expand it to download the OVA file. Step 2: Deploy the Appliance

Once downloaded, you can install the appliance via the vSphere Client:

vSAN Witness Appliance is a virtual ESXi host used in Stretched Cluster or 2-node configurations to maintain a quorum without requiring a physical third host. Since the VMware transition to Broadcom, all downloads have moved to the Broadcom Support Portal Broadcom support portal How to Download the vSAN Witness Appliance

To download the appliance, follow these specific steps on the Broadcom Support Portal

: Log in to your account. Access to these downloads typically requires an active entitlement or license. Navigate to Downloads My Downloads from the left-hand navigation menu. Choose Product VMware Cloud Foundation (or search for VMware vSphere Select vSphere Edition : Click on VMware vSphere - Standard

(or Enterprise, depending on your license) and select the release version you need (e.g., 8.0 or 7.0). Go to Drivers & Tools : Select the Drivers & Tools tab at the top of the product page. Search for "Witness"

: In the search bar within that tab, type "Witness" or "Appliance". Choose Variant : Download the OVA file corresponding to your architecture: : Original Storage Architecture. : Express Storage Architecture. Broadcom support portal Deployment Quick Facts

Downloading and Deploying the vSAN Witness Appliance: A Comprehensive Guide

As a crucial component of VMware's vSAN (Virtual SAN) architecture, the vSAN Witness Appliance plays a vital role in ensuring the availability and consistency of data across a vSAN cluster. In this article, we will walk you through the process of downloading and deploying the vSAN Witness Appliance, highlighting its importance, prerequisites, and step-by-step instructions. Select the exact version that matches your vSAN

What is the vSAN Witness Appliance?

The vSAN Witness Appliance is a virtual appliance that acts as a witness to the data availability and consistency across a vSAN cluster. Its primary function is to monitor the health and status of the vSAN cluster, ensuring that data is properly replicated and available across the cluster. The Witness Appliance is a critical component of the vSAN architecture, as it helps to:

Why Download and Deploy the vSAN Witness Appliance?

Downloading and deploying the vSAN Witness Appliance is essential for ensuring the proper functioning of your vSAN cluster. Here are some reasons why:

Prerequisites for Downloading and Deploying the vSAN Witness Appliance

Before downloading and deploying the vSAN Witness Appliance, ensure that you meet the following prerequisites:

Downloading the vSAN Witness Appliance

To download the vSAN Witness Appliance, follow these steps:

Deploying the vSAN Witness Appliance

Once you have downloaded the vSAN Witness Appliance OVA file, follow these steps to deploy it:

Configuring the vSAN Witness Appliance

After deploying the vSAN Witness Appliance, you need to configure it to work with your vSAN cluster. Here are the steps:

Best Practices and Troubleshooting Tips

Here are some best practices and troubleshooting tips to keep in mind when working with the vSAN Witness Appliance:

Conclusion

In conclusion, downloading and deploying the vSAN Witness Appliance is a critical step in ensuring the availability and consistency of data across a vSAN cluster. By following the steps outlined in this article, you can successfully deploy the Witness Appliance and ensure that your vSAN cluster is highly available and resilient. Remember to regularly monitor the Witness Appliance and follow best practices to ensure optimal performance.

This is a complete guide on how to download, deploy, and configure the VMware vSAN Witness Appliance.

The vSAN Witness Appliance is a critical component for vSAN Stretched Clusters and 2-Node vSAN Clusters. It acts as a "tie-breaker" (the third vote) to maintain quorum and prevent data loss or a "split-brain" scenario if one site or node fails.

Once you have successfully executed the download vSAN Witness Appliance, what next? Here is a rapid deployment checklist:

Before diving into the download process, it is crucial to understand what this appliance does. The vSAN Witness Appliance is a lightweight, pre-configured virtual machine (VM) that acts as a tiebreaker in a two-node vSAN cluster.

Even experienced administrators make these errors. Avoid them:

After selecting your version, scroll past the main ISO images for ESXi (you do not need those for the Witness). Look for a section titled “Release Components” or “Additional Software.”

Here, you will find a line item specifically named:

“VMware vSAN Witness Appliance - OVA”

Alternative naming in older versions:

“vSAN 2-Node Cluster Witness Appliance” Summary: Download the vSphere ISO from VMware Customer