Hi Ahmad –
excellent post, excellent question. I am surprised that you did not bother to list the manufacturers of these products, as most people would find these numbers obscure !
The iT8 and the CineRaid chassis are made by the same company. Both are excellent products. At NAB, NO ONE demonstrated these products working. The ARC-1883x was demonstrated USING A PC (not a Mac) at the Sans Digital booth, showing about 3500 MB/sec with 6g drives in a 24 bay drive enclosure (RAID 0, not RAID 5). CineRaid did not demonstrate the speed of the product.
I just got an ARC-1883x and it is NOT faster than the ARC-1882x in a Mac Pro with a 6g SAS expander from Areca. I am promised that with the new 12G SAS expander from Areca, that it will be faster on the Mac, but I don’t have one yet, so I cannot test it (but I will – I promise – and it might even be this week). So both CI and CineRaid simply don’t have the 12G expander yet for the chassis that you are mentioning – it’s too early, and too new. Be patient, and these products will all have the 12G SAS expander that will match the ARC-1883x.
Will it work better on the PC – yes. Will it work better on the Mac – I don’t know – I will find out. Both the iT8 and the CineRaid are excellent products, made by the same company.
Bob Zelin
Bob Zelin
Rescue 1, Inc.
maxavid@cfl.rr.com