Hot answers tagged bandwidth
That particular RAID controller claims 8-lane PCI Express 2.0 compliancy meaning that effectively you'll already be limited to 8 * 4 Gbs = 32 Gbs (or 4000 MB/s) regardless of what's connected to the RAID card. Each SAS SFF8088 connector will cary 4 SAS lanes over a single cable, when each link is at the maximum 6 Gbs port speed theoretically you indeed get ...
Based on my experience with similar controllers like Smart Array P420i from ProLiant ML350p Gen8 or ServeRAID M5015 SAS/SATA Controller from IBM x3560 M3 I'd say: 6Gbps per mini-SAS (i.e. 12Gbps) - best possible scenario. I have not tested two SFF8088 ports, only one, and I've hit 6 gbps limit.
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