My RAID 10 Array wont even play HDV smoothly

funkytwig

May 21, 2012 7:31:18 PM

I have a 4 bay StarTech RAID enclosure (S354UFER) with 4x2GB Samsung Spinpoint Drives configured for RAID 10 (striped+mirrored). When I test the speed with Blackmagic speed test tool it shows 50-60 MB/s and if I look in system monitor I can get this. Thing is if I try to play HDV or prores off it event so ofter (i.e. 30 secs) I get a little jitter and the video stops playing briefly then resumes. HDV only needs around 3 MB/s. I have tried doing a clean install of Lion and Snow Leopard and it makes no difference. I am using Final Cut Pro 7.0.3.

Any idea what is going on?

Ben

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RealBeast

Storage Expert

May 22, 2012 2:14:58 AM

The drives are parking the heads and causing the stutter in playback.

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FireWire2

June 10, 2012 2:16:25 AM

funkytwig said:

I have a 4 bay StarTech RAID enclosure (S354UFER) with 4x2GB Samsung Spinpoint Drives configured for RAID 10 (striped+mirrored). When I test the speed with Blackmagic speed test tool it shows 50-60 MB/s and if I look in system monitor I can get this. Thing is if I try to play HDV or prores off it event so ofter (i.e. 30 secs) I get a little jitter and the video stops playing briefly then resumes. HDV only needs around 3 MB/s. I have tried doing a clean install of Lion and Snow Leopard and it makes no difference. I am using Final Cut Pro 7.0.3.

Any idea what is going on?

Ben

There is something wrong with the enclosure.... Seriously !

Each drive can do easily 75~100MB/s, now you stripe and mirror and get 60MB/s.. Ouch! Call and exchange!

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