Problem:
The following message is logged when performing an incremental backup of a datastore that is not accessible using SAN Transport Mode:
Disk 'Virtual Hard disk <n> Data.vmdk' snapshot opened with 'san' transport mode
Solution:
This log message may be generated if you are using a virtual machine as the proxy node. For some versions of vCenter and ESXi, the incorrect transfer mode is reported to Protector. Either ignore the log message or use a physical proxy node to prevent the message.