-- On Fri, 9/18/09, Mike <mike.dogho...@googlemail.com> wrote:
> So in my fw800, a drive connected to the
> ata100 bus would  
> read/write faster than one connected via a pci card?

The fw800 only has 33MHz PCI slots but they are 64bit capable.
That means that a 32bit PCI card would clock a maximum of 4 bytes every 30.3nS 
or 132MBytes/s.

I guess that's fast enough for an ATA/100 drive, and about the same as a 
1.5Gbits/s SATA drive. However, it will limit a newer 3Gbits/s SATA drive, 
unless you can find a 33MHz/64bit SATA PCI card, which I don't think anybody 
makes.

On the other hand a pair of raid striped U160 SCSI drives attached to an ATTO 
UL3D 64bit PCI card could max out at 264MBytes/s and could be spinning at 
15Krpm!



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