I saw this in the Known limitations section. This sounds like what you are seeing:
Symantec High Availability home page will not be available on the vSphere Web Client, and the operations related to Symantec High Availability License Management,...
A checksum is provided on the download page for each patch (highlighted below).
Many changes are taking place during the seperation of Veritas from Symantec. There has been discussion regarding the secure download of patches. Look for a new impl...
The command that VOM uses for Storage Foujndation discovery is "vxlist" (not a typo). Unless you find a simple explanation for this behavior using this utility, please open a case with technical support for an analysis of the discovery process for t...