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Lesson 9. Storage Overview > Drive Interfaces

Drive Interfaces

So far, we’ve discussed drive performance factors at a low level and disk configuration at a high level, without looking at how drives connect up to the Mac in the first place. The interfaces between drives and computers put limits on performance, and the technology behind the interface sometimes has greater impact than the raw interface speed might suggest. Even the fastest drive, if connected through a CPU-intensive interface like USB 2.0, won’t reach its maximum potential, and you’re more likely to see dropped frames, stuttering playback, and the like. Likewise, using FireWire both for disks and DV cameras may be simple, but it’s not always the interface that yields the best performance.

ATA

ATA (Advanced Technology Attachment) disk drives are used in G3s, G4s, Xserve G4s, and Xserve RAIDs. They’re commonly available and very affordable. They’re also called IDE (Integrated Drive Electronics) or PATA (Parallel ATA) disks.


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