John Francis wrote: > On Thu, Oct 12, 2006 at 01:34:50PM -0400, Matt Kelch wrote: > >> Gonz wrote: >> >>> [EMAIL PROTECTED] wrote: >>> >>> >>>> Forget about the K10D. Heck, forget even about a Leica M8. >>>> >>>> This is what I really need: >>>> >>>> http://red.com/ >>>> >>>> 12 Megapixels, 60 frames per second. 24x14mm sensor. >>>> >>>> >>> Thats one heck of a data rate, what 60 times say 10Mb per frame, that >>> would be 600Mb/sec. What do disk drives do these days, can they keep up? >>> >>> >>> >> I think you mean 600MB/s... Thats basically an impossible transfer rate >> for any single hard disk. The highest maintained transfer rate I have >> seen is around 120MB/s. I'm not sure how they intend to record data >> when this cam is running at full tilt. >> > > That's easy. Note that they already offer a RAID storage system. > Most people think of RAID in terms of protection against data loss, > but it also offers the ability to do what is called "striping", > and distribute data across multiple disk drives to increase the > bandwidth of the system. Stripe data across eight 120MB/s drives > and you can get close to 1GB/s data transfer rates. Plus you can > put several GB of buffer cache in the system; that doesn't help > you in sustained long transfers, but it can allow you to exceed > the sustained transfer rate for bursts of ten or more seconds. > > > Not going to be too portable is it? haha. Even then, assuming you had 8x 750GB drives (6TB) that would only give you somewhere around 800 minutes of recording time. Thats a shocking amount of data.
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