Date: Thu, 27 Feb 2014 18:52:59 +0100 From: Matthias Apitz <guru@unixarea.de> To: Polytropon <freebsd@edvax.de> Cc: freebsd-questions@freebsd.org Subject: Re: errors from external USB disk Message-ID: <20140227175258.GA3214@La-Habana> In-Reply-To: <20140227150715.e6aa0594.freebsd@edvax.de> References: <20140226121714.GA1532@tiny-r255948> <20140226145527.3cd8eb4b.freebsd@edvax.de> <20140227115934.GA2006@La-Habana> <20140227150715.e6aa0594.freebsd@edvax.de>
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El día Thursday, February 27, 2014 a las 03:07:15PM +0100, Polytropon escribió: > > While copying big files from the failing disk to another with 'cp -Rp' > > I saw: > > > > Feb 23 18:48:07 La-Habana kernel: (da0:umass-sim0:0:0:0): READ(10). CDB: > > 28 00 01 cf d9 cf 00 00 0e 00 > > Feb 23 18:48:07 La-Habana kernel: (da0:umass-sim0:0:0:0): CAM status: > > CCB request completed with an error > > Feb 23 18:48:07 La-Habana kernel: (da0:umass-sim0:0:0:0): Retrying command > > So it's definitely a reading error here. I was today reading the entire disk with # dd if=/dev/da0 of=/dev/null bs=1m and after around 700 GByte it terminated with: dd: /dev/da0: Input/output error 712870+0 records in 712870+0 records out in /var/log/messages I have: Feb 27 18:01:48 La-Habana kernel: (da0:umass-sim0:0:0:0): READ(10). CDB: 28 00 57 05 33 80 00 00 80 00 Feb 27 18:01:48 La-Habana kernel: (da0:umass-sim0:0:0:0): CAM status: SCSI Status Error Feb 27 18:01:48 La-Habana kernel: (da0:umass-sim0:0:0:0): SCSI status: Check Condition Feb 27 18:01:48 La-Habana kernel: (da0:umass-sim0:0:0:0): SCSI sense: MEDIUM ERROR asc:11,0 (Unrecovered read error) Feb 27 18:01:48 La-Habana kernel: (da0:umass-sim0:0:0:0): Error 5, Unretryable error Is there a way, to map away such bad block? Until today I was thinking that the firmware does this by its own, transparently. > > I dis this already, but it does not show much: > > [...] > > Error Counter logging not supported > > > > Device does not support Self Test logging > > Sorry, I forgot to mention: SMART usually does not work over USB. > Do you have the chance to attach the disk, probably a SATA drive, > to a "native" SATA port and try again? I have only laptops with USB external. Thanks matthias -- Matthias Apitz | /"\ ASCII Ribbon Campaign: www.asciiribbon.org E-mail: guru@unixarea.de | \ / - No HTML/RTF in E-mail WWW: http://www.unixarea.de/ | X - No proprietary attachments phone: +49-170-4527211 | / \ - Respect for open standards
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