Be carefull with the Manual, it could be outdated in some lines.
Around a GB, not that much.
From my expierience: yes
Here is the stats of my New drive. yours are propably less. While a filewalk is not even close to 3Mb/s its saturating iops completely. + the normal iops of the node itself.
carefull here, they are maybe, it depends. (it was an fast shot from me)
optimum would be SAS controlers in IT mode.
with PCIE ver3 4 or 8 lanes.(used?)
(the 2. big pcie slot has 8 lanes, if i remember right)
(supports sata, with the right cable, then my knowledge ends here)
The PCIE Standard differs between ver1, 2, 3, 4 (consumer) and the number of lanes that are connected. your controler uses 1 lane ver3.
see here
so in ver3 2 lanes for 6 drives are better than one for 12.(no mater wich mainboard socket you put it.)
