in my server I have PCI RAID Controller PERC 6i, it has two cables connected to SAS Backplane. one is mentioned with CTRL 1 (connected to J_SAS_A), and the other CTRL 0 (connected to J_SAS_B).
The disks are connected to SAS Backplane. The SAS Backplane get its power from Power Supply. SAS Backplane has J_PLANAR_BMC cable connected to the Motherboard.
My question is, does the data on the disks transfer to the motherboard through RAID Controller PCI, or through J_PLANAR_BMC connector?