After performing a reboot on an ESXi 6.0 server, and in some cases upgrading to version 6.0, I noticed the following error for a few of my ESXi hosts:
“Deprecated VMFS volume(s) found on the host. Please consider upgrading volume(s) to the latest version”
I proceeded to check the volumes and noticed that everything was already upgraded to VMFS5:
After a bit of research, I came across this article from VMware saying that the error is a false positive and is currently impacting all existing builds of ESXi 6.0.X with no available fix. However, there is a way to remove the error.
To fix the issue, turn on SSH on the problematic host and log in to the host with a putty session. Next, restart services with commands:
This will briefly restart some services on the VMware host such as high availability. If there are monitoring tools in the environment, be prepared for some errors to be reported. Once all services restarted, the error disappeared on the ESXi host.
In a VMware vSphere 6 environment, the ESXi hosts display a false positive warning: Deprecated VMFS volume(s) (2109735), http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2109735. Accessed December 1, 2015