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I do not have picture.. but you will need others SAS cable the 3 nodes config use 4hdd / node
First of all w/o any sata on board you wont get more than 3G SATA (sas drive wont work)
Second you need SAS controller on PCIe or Mezzanine.
I need some info about part no of the cable from middle plane to sas backplane of the C6220 with 4 nods.
I but 1 server with 4 nodes but only 3...