From mboxrd@z Thu Jan 1 00:00:00 1970 From: Zsolt Barat Subject: Re: ATA bus error with external hd on esata Date: Tue, 18 Dec 2007 14:12:06 +0100 Message-ID: <4767C726.7080600@softmonsters.com> References: <47642D9A.4080600@softmonsters.com> <476434C7.6040307@softmonsters.com> <20071217025321.2f7507db.akpm@linux-foundation.org> <87f94c370712170909y691dc2e3rf7f23c64eff8da22@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <87f94c370712170909y691dc2e3rf7f23c64eff8da22@mail.gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: Greg Freemyer Cc: lkml , linux-ide@vger.kernel.org List-Id: linux-ide@vger.kernel.org Greg Freemyer schrieb: > On Dec 17, 2007 5:53 AM, Andrew Morton wrote: > >> On Sat, 15 Dec 2007 21:10:47 +0100 Zsolt Barat wrote: >> >> >>> Zsolt Barat schrieb: >>> >>>> hi list, >>>> >> Let's cc the IDE development list. >> >> >>>> i just bought a "MyBook" called external HD with a fixed enclosure, from >>>> WD. Connected to the SATA port i constantly get "ATA bus error" messages >>>> in the kernel log. Is this a known issue? >>>> >>>> > > As an FYI: I've had a lot of problems with the big prepackaged drives > in the last 6 months even from Windows, so I would not be too quick to > blame Linux. > > ie. > I bought several 500GB / 1000GB Buffalo Drives last month with plans > to use them from Windows via USB. > > I attempted to do a lot of heavy file copying to/from them. I was > getting a bunch of "Delayed Write Failures", > > I finally gave up. > > The 500GB drives had a single hard drive internally, so I opened the > case, removed the drive and connected them via standalone external > carriers I had around. In that mode the drives worked fine (from > Windows). I've used both standalone eSata external carriers and > standalone USB external carriers with these same physical drives with > no issues. > > My conclusion is that the electronics in the prepackaged external > units is just not up to the job if your doing heavy i/o. > > thanks for your answer. the error messages are vanished for now. i switched on/of the power supply for the hd-box sometimes and then it suddenly worked normaly. it even negotiates with 3 Gbps and UDMA/133. Dec 18 13:05:50 proto1 ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) Dec 18 13:05:50 proto1 ata2.00: ATA-6: WD My Book ES, 012, max UDMA/133 maybe it is the cable, i have to investigate it. it also claimes to have an automatic power on/off function, whatever this should mean. best regards zsolt