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OT
Slightly OT, but might be interesting. Especially for those looking for a high performing, relatively low-cost protected array. We just bought an Infortrend RAID box, and a dual channel 4GB Atto Celerity card, the 42ES.
Loaded with 16 Hitachi 250GB drives, and configured as a RAID 50, we’re getting some nice results. Using Quickbench, reads have peaked at 780MB/s but generally average between 500-600 MB/s. I’m not sure what’s causing the variation. Writes are much more constant at between 620-640MB/s.
This is installed on a Quad G5, so I can’t give you results from Blackmagic’s Speed Test. If the Multibridge Extreme shows up in the next couple of weeks, I’ll report back. Otherwise it’ll be AJA’s utility …
Rory – sorry not to reply. The box is not on a SAN, but it certainly should have the extra headroom to cope. We’re going to be editing some footage we shot with Arri’s D20 which will suck up a lot of bandwidth.
cheers,
Tom
Split Image
http://www.split-image.co.uk -
18 Replies
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hi
is the a OSX driver for the 42ES
and what is the pricejean-yves le moine
temps r
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Did you try to fill-up the array, like till 80% and then run the tests again ?
-Yves
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Yes there is an OS X driver – it’s just not labelled as such! We’re running the Celerity 2.30 drivers without any problem.
We paid
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No. This is on a completely clean array, so I’d expect the numbers to go down as it fills up. Apart from anything else, I don’t have a spare 4TB of data hanging around … will post back once we’ve loaded all our footage onto it, which was about 3hrs of HDCAM SR.
cheers,
Tom
Split Image
http://www.split-image.co.uk -
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and tyhe pricez of the array the infortrend box tom?
jean-yves le moine
temps r
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The bare box was
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So if you loaded this up with 16 SATA 500GB drives, you would get a superfast 8TB RAID for around
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Hi Tom,
It looks like that unit supports RAID 6 and RAID 60. Did you give any thought the implementing one of these? I am wondering if the ASIC would compensate for the overhead for RAID 6 writes.
Thanks,
Gary -
[Tom Bridges] “reads have peaked at 780MB/s but generally average between 500-600 MB/s. I’m not sure what’s causing the variation.”
A complaint I’ve heard about the Infotrend raids is the variation – “all over the map” is how one dealer who evaluated the system put it. The average is still good, but not if it dips to 200MB/S in the valleys. So please know how far it dipped as well as at 80% full when you can do the test.
David
AllinOneFilms.com
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