Re: [Discuss-gnuradio] Hard Disk Bottleneck

[Eric Blossom]

On Fri, Feb 09, 2007 at 10:11:48AM +0100, Vincenzo Pellegrini wrote:
> Hi everybody,
> 
> just a quick question: has anybody managed so far to provide the usrp
> with the 8 Complex Msps needed to transmit an 8 MHz wide band?
> 
> My problem is that such a bandwidth yields a 32MiBps throughput and,
> even if the USB2 bus and the CPU speed of my machine are all right with
> this, it looks like my IDE HARD DISK cannot provide such a data rate.
> 
> Can anyone please confirm whether he's been successful in something
> similar, and, if so, with what kind of HD?
> 
> thanks
> vincenzo 

Buy a new disk and controller ;)

Lots of commodity 7200 RPM SATA drives can sustain 40 - 60 MB/sec,
no problem.  Take a look at the Seagate Barracuda 7200.10

Zipzoomfly.com has the 300GB version for $100.
http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=101457

Eric