I've run a few tests with 4 Hard discs, connected all to one FastTrak 100 TX2. Config:
(1) IDE1 Master: WD 1200 JB
(2) IDE2 Master: WD 1200 JB
(3) IDE1 Slave: WD 800 BB
(4) IDE2 Slave: WD 800 BB
(1) and (2) are standalone drives, while (3)+(4) form one Raid-0 Array.
When copying from (1) or (2) to (3)+(4), I get easily 30 MB/s, althout in theory the 2 drives, which share one channel (which are (1) and (3) as well as (2) and (4)), should slow down each other.
Is it possible that these slow down affects which one can often see with such configurations are only caused by bad chipsets and bad chipset drivers, and that IDE itself is not the problem?
That FastTrak controller seems to be able to access 2 drives sharing one channel pretty well.
It's astonishing how fast SupRip and DVD2AVI run with that configuration