I found this in the manual... IT could help.. Check the mount command in the manual..

After snapshot for iSCSI target has been created and activated, you can access
it by following:
• Go to menu CONFIGURATION -> iSCSI target manager -> Targets ->
[target_name],
• Use function Target volume manger, click on button "add" on the right side of
snapshot you want to have access to. New LUN will be added to the target,
• Now you can connect with your iSCSI initiator and use your snapshot target,
• Example (Microsoft Windows environment). Please download Microsoft iSCSI
Initiator and follow instructions,
• Start the software and add targets,
• Menu Target Portals and enter IP Address of Open-E Data Storage System and
Socket (default 3260),
• In menu Available targets please “Log On” into already added target,
• Now your snapshot target will show up in your system and you can use it.