Date: Fri, 8 Feb 2008 21:31:20 +0100 From: Ulrich Spoerlein <uspoerlein@gmail.com> To: Miroslav Lachman <000.fbsd@quip.cz> Cc: usb@freebsd.org, Dag-Erling =?utf-8?B?U23DuHJncmF2?= <des@des.no>, scsi@freebsd.org Subject: Re: SMART over USB Message-ID: <20080208203120.GC1479@roadrunner.spoerlein.net> In-Reply-To: <47AA4765.8090601@quip.cz> References: <86ir19vx09.fsf@ds4.des.no> <47AA4765.8090601@quip.cz>
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On Thu, 07.02.2008 at 00:48:53 +0100, Miroslav Lachman wrote: > Dag-Erling Smørgrav wrote: > > Consider a PATA or SATA disk attached over USB. AFAIK, the USB mass > > storage protocol is basically SCSI over USB. Is there a way to access > > the disk's SMART data over SCSI / USB? Perhaps as mode pages? Has > > anyone tried this? > > > > The reason I'm asking is this: > > > > http://www.sharkoon.com/html/produkte/externe_gehaeuse/sata_quickport/index.html > > > > This could be extremely useful to quickly extract SMART error logs from > > failing disks after you've replaced them, not to mention wipe them > > before RMAing them. Unfortunately, it doesn't have an eSATA connector. > > I tested many PATA/SATA to USB convertors and disc enclosures - none of them > allowed access to SMART (under FreeBSD, nor Windows). Maybe it is I/O chip > implementation problem. Did you try with atausb(4)? Perhaps it's a limitation of our SCSI layer? Cheers, Ulrich Spoerlein -- It is better to remain silent and be thought a fool, than to speak, and remove all doubt.
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