RandyWang, on June 25th 2005, 01:10 PM, said:
When you're editing - for instance - a feature-length film, you want to be able to have access to huge amounts of data. This includes fast access to hundreds or more 1080p or 720p video clips at sixty frames per second (for an uncompressed datarate not of 1Gbyte per minute, but 3 Gigabits per second), since every scene in a film must be shot a number of times, from half a dozen angles. So we're not talking about simply sticking together a few hours' worth of video, but rather taking hundreds of hours' worth and then selecting absolutely the best from that huge collection of moving images. Even for a relatively short video clip, that's still a huge amount of storage you need - a mere forty minutes of video at the highest possible HD datarate, already in use.
Correct me if I'm wrong but my understanding is that the internal ATA bus can not write data fast enough to digitise HD footage. If you're seriously editing and digitising HD then you need FibreChannel. And don't spring for the xSan, its way too expensive. I'd recommend the EonStor from Infortrend. FibreChannel RAID straight to the G5. Who needs an xServe?
Costs half as much as the xSan but without the snazzy management tools. We have two and they work a treat.