In any event, the inconsistency is slightly confusing.
 
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Adding 2 disks 
 
          /var/hda/files/drives/sdb1
          /var/hda/files/drives/sdc1
 
... I assumed the shares would go likewise, e.g. 
 
          Photos -> /var/hda/files/drives/sdb1/Photos
          Movies -> /var/hda/files/drives/sdc1/Movies
 
... but to my surprise the files loaded into /dev/sda (system disk). 
Then I noticed that the Amahi Jome Server > Storage page showed the 
new disks as:
 
          /var/hda/files/drives/drive1
          /var/hda/files/drives/drive2
 
.... consequently for going to the new disks the shares had to be created 
respectively:
 
          Photos -> /var/hda/files/drives/drive1/Photos
          Movies -> /var/hda/files/drives/drive2/Movies
 
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