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RAID vs. Raptor + PCI raid controller question

S

slackerinabox

Lifer
I'm thinking about using either a 74gb raptor or two 7200 rpm drives (probably seagates) as my main drive (RAID 0). Which would offer faster real world performance? I do a lot of video editing and such so it's pretty HD intense work. I have an external 400gb drive to archive the footage but need a fast working system disk.

Also, what's a good and affordable SATA raid pci solution? I had a cheapy card but the CPU utilization on it was very high.

Thanks!
 
A 2-disk RAID0 of 7200RPM drives will blow away the Raptor in terms of STR. The Raptor will still have lower seek times.

In other words: it depends. If your workload is mostly dealing with huge video files in a sequential manner (for instance, cutting and/or re-encoding files several hundred to several thousand megs in size), the RAID0 will probably be superior.

Of course, it might be even faster to keep the two 7200RPM drives separate, and use one as the source and one as the destination for your operations (so you are only reading from one and only writing to one). This way you won't be wasting time thrashing as you try to read and write on the same drive simultaneously. Or, even more ideally, set up two RAID0 arrays and work between those.
 
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