[Ti] no FW800

John McDaniel johnmcd at one.net
Wed Jan 11 05:18:47 PST 2006


On Jan 10, 2006, at 11:05 PM, Chris Olson wrote:

> To keep up with Firewire 800 you need a hard disk that can deliver  
> sustained 100 MB/sec I/O speed.  The only thing that comes close is  
> SCSI or SATA.  With a hard disk that can deliver FW800 I/O a true  
> benchmark has to deliver data over the interconnect from RAM to  
> disk.  Transferring from disk to disk will always be throttled by  
> the I/O bandwidth of the slowest disk, and FW800 far exceeds the I/ 
> O capability of EIDE disks.

Bingo. And we haven't even discussed what I/O bandwidth a PowerBook  
internal HD can deliver (especially one at a slower rotational speed!).

Methinks Trevor *perceives* faster data transfer, but it ain't really  
happening!  ;)

j mcd

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John McDaniel
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