Romeo,
I’ve noticed that nobody has addressed your post yet, so I figured I would do what I could to help.
You asked: Is there a speed benefit with using raid0, specifically a g-raid, connected with firewire over a single external drive connected with firewire. It seems like from performance notes on raids and single drives that one only gets speed benefits with using a raid with eSATA. I have an 2010 iMac, and if what I write is correct, then getting something like a g-raid would not be anymore beneficial than getting another regular external HD since I am not able to use eSATA.
Answer: Yes, there is a benefit with FireWire in sustained performance across the 2 drives, as opposed to a single drive, (which the performance of the drive is not nearly as sustained) and you’ll obviously have a larger working capacity than with a single drive. Do bear in mind though that in RAID 0 if a drive fails, you have no protection and you’ll lose the array if a drive fails.
You also asked: I currently have one 1TB Lacie d2 Quadra which I’m using as a scratch disc for FCP. It is now 90% full. I am looking for more storage and also to back up all my stuff (internal and external). I was thinking maybe another 1TBish firewire drive for scratch and then a cheap high capacity usb drive to back up all the drives
Answer: You could certainly do what you want to do, or you could go with a 2 bay RAID 1 product like the STARDOM SR2 that has RAID 1 mirroring, so your data is always backed up on the 2nd drive automatically: https://www.stardom-usa.com/product_list.php?sno=0000137 although RAID 1 is slower than RAID 0 you do have automatic back-up of your data, with protection if one of the 2 drives fail.
Hope this helps.
Jonathan Schilling | Sales & Marketing Manager
RAIDON-USA Technology
STARDOM Storage by RAIDON since 2000
15356 East Valley Blvd., Suite B
City of Industry, CA 91746
Tel: 626-333-7888
http://www.stardom-usa.com
Jon Schilling COW LEADER – Stardom Storage Forum