I wouldn't expect the same latency or transfer rate from a USB drive as an IDE one. I haven't actually done the math, but I don't think that the bus can support it. Your latency and throughput will also depend on what other devices you have plugged into that controller, and the host/os implementation. R's speeds do seem way too slow though. The questions that I have about it are: What speed is the device connected at? What filesystem is on the hard drive? What else is plugged into that controller? leif On Wed, 29 Sep 2004 12:35:16 -0500, Florin Iucha <florin at iucha.net> wrote: > On Wed, Sep 29, 2004 at 10:50:10AM -0500, rpgoldman at real-time.com wrote: > > I was wondering if anyone had any expertise to share about USB hard > > drives. I'm finding that access to mine seems terribly slow; far > > slower than I think it ought to be. > > Mine seems slow. Bandwidth and latency are about half of the IDE > interface. I have a Maxtor 89 Gb USB 2.0 drive. > > florin > > -- > > Don't question authority: they don't know either! > > > > _______________________________________________ > TCLUG Mailing List - Minneapolis/St. Paul, Minnesota > Help beta test TCLUG's potential new home: http://plone.mn-linux.org > Got pictures for TCLUG? Beta test http://plone.mn-linux.org/gallery > tclug-list at mn-linux.org > https://mailman.real-time.com/mailman/listinfo/tclug-list > > > > _______________________________________________ TCLUG Mailing List - Minneapolis/St. Paul, Minnesota Help beta test TCLUG's potential new home: http://plone.mn-linux.org Got pictures for TCLUG? Beta test http://plone.mn-linux.org/gallery tclug-list at mn-linux.org https://mailman.real-time.com/mailman/listinfo/tclug-list