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1. Re: slow scrubbing along timeline. 30fps footage
joe bloe premiere May 4, 2012 6:54 AM (in response to Saad Khan)Are you using a RAID0 on a dedicated controller for your media drive?
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2. Re: slow scrubbing along timeline. 30fps footage
Saad Khan May 4, 2012 7:55 AM (in response to joe bloe premiere)I'm using a raid0 hard drive. I'll have to finf out what you mean about a dedicated controller. Sorry. I didn't build the machine. Would that make a difference anyway?
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3. Re: slow scrubbing along timeline. 30fps footage
joe bloe premiere May 4, 2012 8:13 AM (in response to Saad Khan)Would that make a difference anyway?
Yes.
A dedicated RAID controller has it's own processor and memory
and will not steal system resources in order to manage the RAID.
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4. Re: slow scrubbing along timeline. 30fps footage
JSS1138 May 4, 2012 10:32 AM (in response to Saad Khan)Would that make a difference anyway?
With this media, probably not. AVCHD is no more disk intensive than DV, and you can easily get DV to run multiple streams from a single drive. It will be even less of a problem coming from a RAID 0.
The issue with AVCHD is the processor. But yours is much more than sufficient, even using software RAID. (You can easilly test this just by opening Task Manager and seeing your CPU usage when playing footage. Likely it is nowhere near maxed out.) So...something else is interfering.
(On a side note, a RAID 0 with tapelss media, for which you have no tape backup in the event of a drive failure, is not the best idea. Ideally you want a RAID level that offers some form of data security. RAID 3 is best, RAID 5 is OK, even RAID 1 is better than 0.)
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5. Re: slow scrubbing along timeline. 30fps footage
joe bloe premiere May 4, 2012 11:40 AM (in response to JSS1138)I agree that RAID0 is not the best place to keep the only copy of original source media.
A drive failure is always possible.
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6. Re: slow scrubbing along timeline. 30fps footage
Saad Khan May 4, 2012 3:41 PM (in response to Saad Khan)Hi. Thanks for the feedback. When you say something else is interfering, is there anything you can think of? I keep a back up of all my data and projects on an external hard drive. I think it's raid 5. It's supposedly the most secure one.
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7. Re: slow scrubbing along timeline. 30fps footage
Harm Millaard May 5, 2012 9:32 AM (in response to JSS1138) -
8. Re: slow scrubbing along timeline. 30fps footage
Saad Khan May 6, 2012 5:15 AM (in response to Harm Millaard)Hi Harm,
so are you implying that there's something else wrong with my machine? That what's happening is abnormal?
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9. Re: slow scrubbing along timeline. 30fps footage
Saad Khan May 6, 2012 5:18 AM (in response to Saad Khan)I found out from the IT guy who built my computer that the Raid0 Drive is run by windows 7 software and not from the bios. Is this a problem?
By the way I hope I've interpreted the above message correctly. I'm pretty sure that's what he told me on the phone.
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10. Re: slow scrubbing along timeline. 30fps footage
joe bloe premiere May 6, 2012 6:41 AM (in response to Saad Khan)the Raid0 Drive is run by windows 7 software and not from the bios. Is this a problem?
An OS level RAID configuration will not deliver the same performance as
a BIOS level RAID... whether controlled from the MB or a dedicated controller.
Even a mid-range priced RAID controller will provide
an appreciable disk read performance boost.







