Re: File Systems Compared

Luke Lonergan wrote:

>Brian,
>
>On 12/6/06 8:40 AM, "Brian Hurt" <bhurt@janestcapital.com> wrote:
>
>  
>
>>But actually looking things up, I see that PCI-Express has a theoretical 8
>>Gbit/sec, or about 800Mbyte/sec. It's PCI-X that's 533 MByte/sec.  So there's
>>still some headroom available there.
>>    
>>
>
>See here for the official specifications of both:
>  http://www.pcisig.com/specifications/pcix_20/
>
>Note that PCI-X version 1.0 at 133MHz runs at 1GB/s.  It's a parallel bus,
>64 bits wide (8 bytes) and runs at 133MHz, so 8 x 133 ~= 1 gigabyte/second.
>
>PCI Express with 16 lanes (PCIe x16) can transfer data at 4GB/s.  The Arecas
>use (PCIe x8, see here:
>http://www.areca.com.tw/products/html/pcie-sata.htm), so they can do 2GB/s.
>
>- Luke 
>
>
>
>
>  
>
Thanks.  I stand corrected (again).

Brian