SATA I and II and a Mac Pro

Z

Zimbop

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My Mac Pro manual says that the hard drives "must meets these specifications" - SATA 3GB/s (commonly called SATA II i believe). There's no mention of compatibility with SATA I - anyone know anything about that?
 
SATA 2 can slow done to SATA 1 speeds, I believe it is backward compatible. One question, why would want something slower?
 
really can't find an answer online about this one - would have through it would be ok but there's absolutely no mention of backwards compatibility - anyone actually using an SATA 1 drive in a Mac Pro?
 
Zimbop said:
My Mac Pro manual says that the hard drives "must meets these specifications" - SATA 3GB/s (commonly called SATA II i believe). There's no mention of compatibility with SATA I - anyone know anything about that?
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OK, this is an excellent question. Firstly, while the SATA-1 port can access at 150-MB/sec, and a SATA-2 can access at 300-MB/sec, the drives are mechanically limited to around 80-MB/sec. The whole discussion becomes performance irrelevant in the face of these performance constraints. That's why raids are still popular even with a SATA-2 port <grin>.

I don't care which kind of port you have, the hard drives remain the slowest part of the drive subsystem <grin>.

-Paul
 
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