The total exported size for a host seems too small
On the Hosts screen, detail pane, Overview view, the sizes reported in the Total Exported Size panel seem too small.
The issue can occur in the unusual situation of a host not having any active paths to a storage system. The lack of active paths causes the size of the exported virtual volumes (relative to the host) to be treated as zero.
This issue is known behavior. After an active path is restored, the Total Exported Size panel for the host will be updated.