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SATA Oddity – can anyone confirm?
I have a DP 2.5 G5 with two HDDs; one with OS X 10.3.9 / FCP 4.5 /QT 6.52 and the other with Tiger, FCP 5.02 and QT 7.01.
I ended up with this because I installed (as a test) a Swiftdata 200 bracket and three more SATA drives.
https://www.transintl.com/store/category.cfm?Category=2490
This comes with a Seritek four port SATA card https://www.firmtek.com/seritek/seritek-1v4/
This rig, with the 10.3.9 / FCP 4.5 /QT 6.52 HDD installed gives me six uncompressed 10bit video tracks in FCP 4.5 BUT with the Tiger, FCP 5.02 and QT 7.01 HDD installed I get NO MORE than two video tracks playing back in realtime. If I add a third video track it soon starts dropping frames.
So, this is the same DP 2.5 G5 with a Kona 2 in slot 3 and the Seritek in Slot 4 (the PCI-X 133 slot): all I am doing is changing the internal hard disk (and the software thereon).
Is anyone in a position to repeat this experiment?
I plan to do the same test with a UL4D and a four-bay Storcase U320 SCSI enclosure (in place of the Seritek and SATA) next week, but I was curious to know whether anyone else is seeing this sort of drop-off in FCP 5 and QT 7.01?
Rupert Watson
ROOT6 Ltd
44 7787 554801 -
10 Replies
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What are your RT settings set at? Not dynamic I hope. This might lead to dropped frames.
What drives are you using? The SeriTek page has a warning about using early Hitachi SATA drives that shows they are incompatible. Make sure your drives are on their approved list.
Andy
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[Andy Edwards] “What are your RT settings set at? Not dynamic I hope.
What drives are you using?”
I am using Seagate Barracuda and everything is set to “high” and “best” where possible; I meant to test the worst case scenario as far as performance goes.
As I mentioned in the original post, this ALL THE SAME METAL except for the internal hard drive (and therefore the OS, FCP, QT, Kona drivers). It works like a champ in FCP 4.5 and like a dog under FCP 5.02.
All I am asking is whether anyone else is in a position to verify this? At the moment I have done this test inside one G5.
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I would try trashing your FCP 5 preferences
https://www.apple.com/downloads/macosx/video/fcprescue.html
I also read that RAIDs made with Panther are slower than RAIDs made with Tiger, but only by about 10%.
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[guy] “RAIDs made with Panther are slower than RAIDs made with Tiger, but only by about 10%.”
hmm, I can tell you that RAIDs made in Tiger dont reappear when I go back to Panther.
As for the speed, it makes no odds whether it is made in Panther or Tiger. It is slower under Tiger.
Have you got the ability to try playing uncompressed 10bit in a 4.5 FCP and a 5.02 FCP environment on the same metal?
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I have the same problem, Rupert. I don’t have an answer except that its in the hands of Apple. People everywhere have been complaining of the speed problems of Tiger 10.4.2 and FCP 5.02.
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Wayne Carey
Schazam Productions -
Really? where? Not here, have they?
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Rupert –
Hey man, it’s Bob Zelin – put the AJA Kona in Slot 4 (the PCI-X slot) and put the Seritek in Slot 2 or 3 – this will work. Trust me (and report back your results).Bob Zelin
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Hi there, Bob.
Yes I thought that might be an idea, except the Seritek manual said to use the PCI-X 133.
Also the reason I had not changed it was that it works like a champ when I use the hard disk with OS X 10.3.9 / QT 6.5.2 /FCP 4.5 on it.
But I did change the slot order and there is no change when the Seritek is in slot 3 and the Kona 2 is in slot 4 (the PCI-X 133).
Now I am going to put in a UL4D SCSI card and see if I see the same problem with SCSI.
It does look like it is solidly an FCP 5, QT 7 problem, though.
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I am in the process of escalating this issue to Tier 3 support at Apple – I will let you know the outcome
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Well, we hooked the G5 onto a Terrablock and all works well uder FCP 5.02 and Tiger etc. I guess that points to the Seritek or the SATA drives. Odd that they work fine with FCP 4.5 and Panther.
Being a reseller really sucks some days…
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