Date: Sun, 18 Sep 2005 13:05:10 +0200 From: Hans Petter Selasky <hselasky@c2i.net> To: freebsd-usb@freebsd.org Subject: Re: USB 2.0 external hard drive only 1.000MB/s transfers Message-ID: <200509181305.11061.hselasky@c2i.net> In-Reply-To: <200509160845.51758.hselasky@c2i.net> References: <0C9AA1AB019C4A44AE29659CF2BB203202EA26@gir.routemaster.net> <200509160845.51758.hselasky@c2i.net>
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On Friday 16 September 2005 08:45, Hans Petter Selasky wrote: > On Thursday 15 September 2005 14:01, Chris Richards wrote: > > Hi, > > > > I bought a USB 2.0 external hard drive and USB 2.0 PCI card to use for > > backups on my FreeBSD box but the drive is recognised as only being able > > to do 1.000MB/s transfers. Obviously a USB 2.0 drive should be able to > > transfer data a lot faster... I have checked my config and can't see any > > issues. > > > > Can someone point me in the right direction or see an issue with my > > config? I have included a "dmesg" and "kernel config" below. > > > > Thank you in advance for your help. > > > > Cheers. > > > > -Chris > > The umass driver does not display the right number. What does > "dd if=/dev/daXXX of=/dev/null" show ? The speed depends very much on the block size used: Also try this: dd if=/dev/da0 of=/dev/null bs=64000 --HPS
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