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Low write rate on LaCie Raid Array.
I have a LaCie SATA Raid Array (Biggest S2S) hooked up to a Dual G5 2.0 machine (3gigs of Ram, FCP 5 on Tiger) with a Kona LS card installed. It’s been aborting renders, not every time but at least half the time on our 1 hour program that we edit on the machine. It says a write I/O error. When I ran the Kona system test utility, it says the array is only writing at 12MB/s rate which I know is low. everyting else seems to be working right. Any ideas? The SATA card and the Kona card are both in slots suggested by AJA.
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3 Replies
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a single SATA drive will give you about 68mb/sec. Aside from throwing it in the garbage, I suggest that you xfer your SATA material to Firewire as a backup, and reinit the SATA drive (wipe it out), and try the AJA Kona System test again. I no longer use Lacie products, but ANY single SATA drive will give you 68mb/sec, and two drives striped RAID 0 will do over 120mb/sec.
Once you reinit the Lacie, if you can’t get this performance, you have got a problem with your drive.
Bob Zelin
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[donwalker] “When I ran the Kona system test utility, it says the array is only writing at 12MB/s rate which I know is low. everyting else seems to be working right. Any ideas? The SATA card and the Kona card are both in slots suggested by AJA.”
I’m running the S2S on a Dual 2.0 G5 and we’re getting about 135mb/sec using the Kona Utility. Did you erase and initialize the drive before you started using it? I have the K2 in Slot 3 and the SATA card in Slot 4 as this gives the best drive performance. We’re running in RAID +1 so that’s four drives striped together with the 5 as the standby.
Walter Biscardi, Jr.
https://www.biscardicreative.comDirector, “The Rough Cut”
https://www.theroughcutmovie.comNow Posting “Good Eats” in HD for the Food Network
“I reject your reality and substitute my own!” – Adam Savage, Mythbusters
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[Bob Zelin] “a single SATA drive will give you about 68mb/sec.”
The S2S is a 5 drive array.
[Bob Zelin] “Aside from throwing it in the garbage, I suggest that you xfer your SATA material to Firewire as a backup”
We’ve been running an S2S in our second suite here since January cutting 8bit uncompressed SD all day almost every day and it’s a solid product. I highly recommend the S2S if you’re looking for a SATA solution.
Walter Biscardi, Jr.
https://www.biscardicreative.comDirector, “The Rough Cut”
https://www.theroughcutmovie.comNow Posting “Good Eats” in HD for the Food Network
“I reject your reality and substitute my own!” – Adam Savage, Mythbusters
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