[ltp] USB Drive Transfer Rate

linux-thinkpad@linux-thinkpad.org linux-thinkpad@linux-thinkpad.org
Thu, 11 Mar 2004 11:39:04 +0100


	Hi,

Be aware that all USB ports may not be connected to the same USB =
controller.

On my T40, the lower port is USB2.0 ans the upper one is USB1. For =
each, my
Fedora loads a different module.

You may use lsusb or brows /proc/bus/usb to see how your disk is =
connected.

++, Mathieu.

> -----Message d'origine-----
> De : Frank Schaeckermann [mailto:p8f9oz9d02@sneakemail.com]=20
> Envoy=E9 : jeudi 11 mars 2004 11:21
> =C0 : linux-thinkpad@linux-thinkpad.org
> Objet : [ltp] USB Drive Transfer Rate
>=20
>=20
> Hi everybody!
>=20
> I just discovered, that my external disk attached by means of an=20
> external USB harddrive adapter that supposedly is USB 2.0 capable is=20
> really slow. The transfer rate I get between my ThinkPad T40p=20
> with Red=20
> Hat 9 Linux and the drive is about 500Kb per second (from hdparm -tT=20
> /dev/sda).
>=20
> I guess I am not using the right USB 2.0 capable drivers?=20
> Does anybody=20
> have an idea what I can do to hike this up some?
>=20
> Any tip is highly appreciated!
>=20
> Frank
>=20
> --=20
> The linux-thinkpad mailing list home page is at:=20
http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpad