the card I bought is here:http://www.ebay.co.uk/itm/260876763459? ... 398wt_1139
I have made progress with this card, but have not yet got things fully working (due to my lack of technical know how).
The raid card above is based on the SI3114 chipset, and allegedly can do RAID 0,1,5,10, JBOD/Concatenation or simply act as additional SATA ports. Card has installed fine, and does recognise my 2TB SATA3 drive (my onboard SATA1 did not), however the card only runs at SATA1 speeds (ie 1.5GBS).
I'm now having difficulty setting the drives up within webmin. If I use the card simply to add more ports, I can see all attached drives, and have formatted the 'new' SATA3 drive, however I tried to mount it pointing at my /media folder (same as I have done with my SATA2 drive) thinking this would increase the available space for my /media folder from 2TB to 4TB, however the mount fails saying that the /media mount is already allocated (presumably by my SATA2 drive).
If I try to use the RAID side of the card by concatenating the two 2TB disks then when ubuntu launches the mount fails - unfortunately when this happens my log-in via webmin also fails so I cannot get in to see what's happening and my understanding of command line linux is too poor to address from the server itself.
Next step will be to revert back to 'old' set-up, unmount all storage drives, save and then go back into webmin with no mounted drives, but with the two 2TB storage drives concatenated via the raid card (4TB) and see if I can create a new mount to the /media folder.
If anyone can point out any easier ways I'd be grateful of their guidance/assistance.