Erklärung: I think you may use "Backend-Loop", in German, it is used as quality indication for netstorage systems. Backend definitely is already a common term, while if you use "Schleife" for "loop" you might enter into a Compiler context, which might not be appropriate.
On page 30 of the pdf-document below you have an image of the system (even with 120 disk drives ;-) )
Erklärung: I think you may use "Backend-Loop", in German, it is used as quality indication for netstorage systems. Backend definitely is already a common term, while if you use "Schleife" for "loop" you might enter into a Compiler context, which might not be appropriate.
On page 30 of the pdf-document below you have an image of the system (even with 120 disk drives ;-) )
The translation workplace 
