Appliance — Download Vsan Witness

Once the VM is deployed and powered on:

If you have vSphere 7.0 Update 1 or newer, you can download the Witness Appliance directly without visiting the Customer Connect portal:

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.

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

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

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: Once the VM is deployed and powered on:

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. Add to vCenter:

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

| Item | Requirement | |------|--------------| | ESXi version | The Witness Appliance version must exactly match the vSAN version running on your primary and secondary sites. | | Deployment format | OVA (Open Virtual Appliance) | | vSAN License | Stretched Cluster license feature required | | Networking | Layer 2 or Layer 3 connectivity between Witness and both data sites | | Storage | The Witness Appliance requires a dedicated datastore (does not use vSAN storage) |