Sam-CureSolutions.com With the hardware you listed, the T610 and Perc6/i would be able to use the remaining slots. This is because you have both the SAS0 and the SAS1 cables (5FM3N and RM255) that run to both sides of the backplane.  On a side note, the Perc 6/i can support far more than the server can hold, as it supports up to 32 drives per Virtual Disk and up to 64 Virtual Disks per Perc 6/i.  Let me know if this helps.
Our server: Has a 341-8785 : PERC 6/i SAS RAID Controller 2x4 Connectors, Internal, PCIe 256MB Cache listed on the manifest. We would like to know if - as shipped (we have not changed hardware since receiving) - this RAID controller will support drives in all bays without purchasing more hardware. The rest of that line item:
Need help understanding manifest