I would like to configure the C6100 12 bay for 3 machines using SAS w/4 Disks each.  Will be installing SAS6G Cards with 4 internal and 4 external drives.  Basically will keep one machine for a hot spare.

What cables do I need for the mid plane connections?  Typically, one SAS card will have the internal SFF8087, but the mid plane 7/9 appears to be fine for machines 1 & 2, but 8/10 are split with 2 ports each.  Is this possible to do?