VMware vCenter Storage Views: Partial/No Redundancy

While exploring my virtual environment I noticed that all my VM’s on every host are reporting a “Partial/No Redundancy” status within the Multipathing Status even though I have dual HBA cards and PowerPath in place; thus 2 paths to the storage.



 

This behavior is a bug as confirmed by VMware Technical Support. The rule for displaying the “Multipathing Status” is as follows:

If there exists 2 or more distinct adapters AND 2 or more distinct targets
MPStatus = Up (Full Redundancy)
else If there exists at least one path whose status is “Up”
MPStatus = degraded (Partial/No Redundancy)
else If there exists at least one path whose status is “Unknown”
MPStatus = unknown (Unknown)
else (for all other cases)
MPStatus = down (All Paths Down)