On 12/19/05, Richard Fish <bigfish@...> wrote:
> On 12/19/05, Drake Donahue <donahue95@...> wrote:
> > usb2.0 external hard drive has to be feasible. less than a $100 for 80gb.
> > nominal 60MB/sec.
> > usb2.0\1394b external hard drive. less than $300 for 300 gb. nominal
> > 60MB\80MB/sec.
>
> Using what hardware?  I've used more than a dozen different models of
> USB2/1394 hard drives on 4 different PCs and have never seen one
> exceed 30MB/s in actual thoughput, although the same disks installed
> internally exceed 60MB/s.
>
> -Richard

Yeah, you won't get much more than 30MB/S out of any 1394a drive on
Linux, and even then you may have to set gap count by hand to get
there. However, faster 1394 performance is available in Linux. Here's
my 1394b drive:

lightning ~ # hdparm -tT /dev/sdb

/dev/sdb:
 Timing cached reads:   2252 MB in  2.00 seconds = 1125.44 MB/sec
 Timing buffered disk reads:  172 MB in  3.03 seconds =  56.72 MB/sec
lightning ~ #

- Mark

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