Download Vsan Witness Appliance [patched] (INSTANT)

A: Yes. As of vSAN 8.x, there are specific build numbers for OSA and ESA witnesses. Be sure to download the correct version: for vSAN ESA 9.0.2.0, the witness build is 25160897; for OSA, it is 25160898.

The Witness VM requires a dedicated VMkernel port for vSAN traffic and another for management.

Alternative naming in older versions:

Which (e.g., 7.0, 8.0) are you deploying?

In a standard vSAN cluster (three or more hosts), data replicas and witnesses are distributed among the hosts within a single site. However, (data spread across two geographical sites) and two-node clusters lack a third, independent site to break ties. For instance, if the network link between two sites fails, each site might believe it is the active partition, leading to "split-brain" scenarios where conflicting data writes corrupt the datastore. The Witness Appliance, placed in a third physical location (or a fault domain isolated from both data sites), provides the necessary "vote" to determine which site’s data remains valid. download vsan witness appliance

Select the appropriate variant: or Express Storage Architecture (ESA) , depending on your cluster's configuration.

Identify where the witness will be hosted. It must reside on a physical host or cluster separate from the vSAN cluster it is tracking. 2. Step-by-Step: Download the vSAN Witness Appliance A: Yes

| Item | Requirement | |------|--------------| | | 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) |

Concrete checklist before deployment

You deploy this just like any other virtual appliance. Ideally, deploy it to a management cluster or a host that is not part of the vSAN data cluster you are configuring.

To download the vSAN Witness Appliance, you must use the , which is the official repository for all VMware-related downloads following Broadcom's acquisition. The appliance is distributed as an OVA file , a pre-configured virtual machine running a "nested" version of ESXi designed specifically to act as a tie-breaker for 2-node or stretched vSAN clusters. How to Download the vSAN Witness Appliance The Witness VM requires a dedicated VMkernel port