Virtual SAN Configuration on an ESXi Host Might Fail

In certain circumstances, the task of configuring Virtual SAN on a particular host might fail.

Problem

An ESXi host that joins a Virtual SAN cluster fails to have Virtual SAN configured.

Cause

If a host does not meet hardware requirements or experiences other problems, Virtual SAN might fail to configure the host. For example, insufficient memory on the host might prevent Virtual SAN from being configured.

Solution

1. Place the host that causes the failure in Maintenance Mode.
2. Move the host out of the Virtual SAN cluster.
3. Resolve the problem that prevents the host to have Virtual SAN configured.
4. Exit Maintenance Mode.
5. Move the host back into the Virtual SAN cluster.