-
2 drive striped sata
Hello All,
Is anyone using a 2 sata drives striped in a raid 0 wth the IO La? I am trying to pin down issues with dropped frames mentioned in a previous post.
Thanks
marc -
20 Replies
-
What is your system setup?
-
I am using the following:
Macbook Pro 2ghz 2gb ram
Firmtek Sata II Express Card
Firmtek 2 drive Sata II Enclosure
2 Maxtor Maxline III Sata Drives with 16mb cache
AJA IO LAI have benchmarked the drives with a few tools and they benchmark at 122mb per second. However the kona benchmark tools show some drops in writes to about 80mb per second. I am curious if 2 Sata drives are enough for 10 bit uncompressed SD. Any thoughts would be appreciated.
Marc
-
I forgot to mention but I am only experiencing dropped frames on capture.
-
That should be plenty of bandwidth. Are you sure you are digitizing to the array and not your internal drive? Did you setup your preferences? Have you loaded the latest firmware and drivers for the io? You are on a macbook pro so you will need the V3 universal binary drivers to run properly. Do an uninstall of the io drivers, then do a reinstall to make sure everything is seated properly. You can download an uninstaller and the latest drivers/firmware/control panel here:
https://www.aja.com/html/support_Io_swd.html
Jeremy
-
I have done all that more than once and still having issues. I am begining to think it may be a problem with the express card slot on the mac itself maintaining the data rate.
marc
-
Don’t you love being the beta tester for the new express 34 cards? I’d call firmtek or whoever the card is from. Perhaps you can call your dealer. I have a Firmtek 2 drive enclosure for my powerbook and I cannot get the RAID speeds, but everything is working on it. 10 bit is a no go for me here. maybe there’s new firmware/software for the express 34 card? I know that when I inquired about getting a SATA enclosure, the make, model, and version number of the drives were extremely important. Some work, some don’t. The ones that don’t you need a windows pc to reconfigure. Where’d you get your stuff from? Call them.
Jeremy
-
It does kinda suck to be beta testing both the express cards and the macbook pro. But you would figure with 120mb capturing 30 should not be an issue. Do you think 2 sata drives should work for 10 bit on a g5?
Thanks
Marc -
The thing is you have the bandwidth, something is awry in your system somewhere. Yes, it is possible to 10 bit with two striped SATA drives on a G5. I would be curious to see if you hooked that up to your G5 if the array worked. That would pretty much nail it down to your Express-34 card or your laptop. Call Firmtek. Any other firewire devices connected to your laptop?
Jeremy
-
No other firewire devices when the aja la is connected because I only have the one fw400 port. I am thinking of buying sata card for my g5 to test the array and capturing. This way I can solve the issue but if it does not work then I am out another 100 dollars. Thanks for all the help
Marc
-
Can afford to break the stripe? If so, try breaking the stripe and see if you can digitize that way. Oh yeah, Call Firmtek.
Jeremy
Reply to this Discussion! Login or Sign Up