Dell PowerEdge C6220 II Owner's Manual page 277

Figure 3-90. Cable Routing−Bottom Middle Plane to Direct Backplane for 24 x2.5"
Hard-Drive Configuration
Item Cable
Hard-drive
backplane
cable
Hard-drive
backplane
cable
Hard-drive
backplane
cable
From
(Bottom Middle Plane)
Mini-SAS connector for
system board 1 and 2
(hard drive 1, 2, 3 and 4)
(J1)
Mini-SAS connector for
system board 1 and 2
(hard drive 5 and 6) (J2)
Mini-SAS connector for
system board 3 and 4
(hard drive 1, 2, 3 and 4)
(J3)
Removing and Installing System Components | 277
To
(Direct Backplane)
SATA2 hard drive
connectors 1 to 4 for
system board 2 (from
right to left)
SATA2 hard drive
connectors 5 to 6 for
system board 2 (from
right to left)
SATA2 hard drive
connectors 1 to 4 for
system board 4 (from
right to left)