Date: Mon, 19 Sep 2005 08:17:36 +1000 From: "Chris Richards" <chrisric@routemaster.net> To: <hselasky@c2i.net>, <freebsd-usb@freebsd.org> Subject: RE: USB 2.0 external hard drive only 1.000MB/s transfers Message-ID: <0C9AA1AB019C4A44AE29659CF2BB203202F19A@gir.routemaster.net>
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Hi, =20 Here is the output with the different block size. =20 root@spunky2:~$ dd if=3D/dev/da0 of=3D/dev/null bs=3D64000 ^C4262+0 records in 4262+0 records out 272768000 bytes transferred in 269.048179 secs (1013826 bytes/sec) =20 Thanks. =20 -Chris ________________________________ From: owner-freebsd-usb@freebsd.org on behalf of Hans Petter Selasky Sent: Sun 18/09/2005 9:05 PM To: freebsd-usb@freebsd.org Subject: Re: USB 2.0 external hard drive only 1.000MB/s transfers 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=3D/dev/daXXX of=3D/dev/null" show ? The speed depends very much on the block size used: Also try this: dd if=3D/dev/da0 of=3D/dev/null bs=3D64000 --HPS _______________________________________________ freebsd-usb@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-usb To unsubscribe, send any mail to "freebsd-usb-unsubscribe@freebsd.org"
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