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- Joined
- 12 Jun 2007
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- 1,629
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- East London
Hey guys,
Got a bit of an issue with a drive i've got in a video playback machine (for picture to projector playback). We have a drive RAID array of Seagate Barracudas (ST38081) totalling 2TB.
Using picture playback software 'vcube' the drive read latency times average at 15-16ms. However, there is an issue occuring as roughly every 8minutes the drive read time peaks to 150ms (and subsequently drops a couple of frames of video). This causes inaccurate picture playback.
I'm not entirely sure of what is causing the read spike. I've uninstalled everything that isn't required and stripped the XP installation (pro with SP3) to bare minimum even removing windows components (IE, outlook etc.). I've also changed visual performance to bare minimum to take load off the computer in general.
My first instinct is to believe it could be an autosave feature in a program that is just writing to the RAID array (and taking the priority for drive access away from Vcube software), but even after all the uninstalling of programs - no joy!
Anyone had this before? Could it be the RAID array itself or another problem? Any help is appreciated! Thanks.
Got a bit of an issue with a drive i've got in a video playback machine (for picture to projector playback). We have a drive RAID array of Seagate Barracudas (ST38081) totalling 2TB.
Using picture playback software 'vcube' the drive read latency times average at 15-16ms. However, there is an issue occuring as roughly every 8minutes the drive read time peaks to 150ms (and subsequently drops a couple of frames of video). This causes inaccurate picture playback.
I'm not entirely sure of what is causing the read spike. I've uninstalled everything that isn't required and stripped the XP installation (pro with SP3) to bare minimum even removing windows components (IE, outlook etc.). I've also changed visual performance to bare minimum to take load off the computer in general.
My first instinct is to believe it could be an autosave feature in a program that is just writing to the RAID array (and taking the priority for drive access away from Vcube software), but even after all the uninstalling of programs - no joy!
Anyone had this before? Could it be the RAID array itself or another problem? Any help is appreciated! Thanks.