[ubuntu-uk] fast external hard drive

[Albert Vilella]

BTW, I found this table of information:

http://en.wikipedia.org/wiki/Serial_ATA#eSATA_compared_to_other_buses

On 11/1/06, Albert Vilella <avilella at gmail.com> wrote:
> Has anyone had any luck/problems with firewire hard drives? Anything I
> should be aware of?
>
> On 11/1/06, Alan Pope <alan at popey.com> wrote:
> > On Wed, Nov 01, 2006 at 02:44:43PM +0000, ajb35 at kent.ac.uk wrote:
> > > I'm running my desktop computer completely off a USB hard drive with no problems. As long as you have a USB2.0 port and drive then the maximum transfer rate is 480MBPs. When you consider a standard PATA connection is only 133MBPs it's more than enough. Firewire connections are also faster then hard drives can throughput so you should have no problems with a firewire or USB2 HDD.
> > >
> >
> > Careful, you're mixing bits and bytes there.
> >
> > USB2 has a theoretical maximum of 480Mb/s (that's 480 mega bits per second)
> > PATA has a theoretical maximum of 133MB/s (that's 133 mega bytes per second)
> >
> > 480 (bits) / 8 (bits per byte) = 60
> >
> > Therefore USB2 has a theoretical maximum throughput of 60MB/s (but it's really nearer 55MB/s in
> > the real world) (compared with 133MB/s of PATA), per host adapter.
> >
> > Cheers,
> > Al.
> >
> > --
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> >
>