E5660 (DE6600) is not a JBOD but a disk array (https://www.netapp.com/media/19764-ds-3643.pdf).
If you got a E5660, you need to create disk groups and volumes, and present volumes to hosts.
E5600 documentation: https://mysupport.netapp.com/documentation/docweb/index.html?productID=62002
Stand-alone enclosures (no controller, aka "expansion enclosures") are JBODs, and on those you'd see individual disks, but you may need two cables rather than just one. NetApp doesn't sell stand-alone expansion enclosures (JBOD storage), so none of the documents contain instructions for direct attachment of JBODs.
JBODs are always supposed to be attached to the controller shelf (as the E5660 documentation shows, for example) and Linux/Windows/ESXi clients connect indirectly, through controllers.
