This issue occurs because the version of the filesystem is not known during the initial detection. Therefore, comparing it against the list of valid filesystems does not return a match.
Resolution
This is a known issue affecting vCenter Server 6.0.
This issue is resolved in vCenter Server 6.0 Update 2, available at VMware Downloads.
To work around this issue, restart the management agents on the impacted hosts to clear the warning.
From the Local Console or SSH:
- Log in to SSH or Local console as root.
- Run these commands:
/etc/init.d/hostd restart
/etc/init.d/vpxa restart