My RAID 10 Array wont even play HDV smoothly

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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More about raid array wont play smoothly
  1. The drives are parking the heads and causing the stutter in playback.
  2. 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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