Date: Wed, 17 Aug 2016 17:48:53 -0400 From: Jonathan Stewart <jonathan@kc8onw.net> To: Ian Smith <smithi@nimnet.asn.au> Cc: freebsd-questions@freebsd.org Subject: Re: Lexar flash drive dead? Message-ID: <159c6f79-7de6-1234-b5c5-588df8041085@kc8onw.net> In-Reply-To: <20160817210437.M79687@sola.nimnet.asn.au> References: <mailman.3901.1471411882.74901.freebsd-questions@freebsd.org> <20160817210437.M79687@sola.nimnet.asn.au>
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On 8/17/2016 7:34 AM, Ian Smith wrote: > In freebsd-questions Digest, Vol 637, Issue 3, Message: 20 > On Tue, 16 Aug 2016 21:31:12 -040 Jonathan Stewart <jonathan@kc8onw.net> wrote: > > > (Please CC me as I'm not subscribed right now) > > And please cc me on any reply; I take the -digest. > > > I have a Lexar USB3 128GB flash drive that has quit working. I get the > > following on the console and in dmesg when I plug the drive in, is there > > any hope other than a professional recovery company for this drive? On a > > Windows machine it does some kind of disconnect/reconnect loop but just > > triggers the text below on FreeBSD. > > Have you tried it on other FreeBSD boxes too? I don't have any other FreeBSD systems to test it on. The two Windows machines I have both do the disconnect/reconnect loop. > > ugen1.3: <Lexar> at usbus1 > > umass0: <Lexar USB Flash Drive, class 0/0, rev 2.10/11.00, addr 3> on usbus1 > > umass0: SCSI over Bulk-Only; quirks = 0x8100 > > umass0:9:0:-1: Attached to scbus9 > > da4 at umass-sim0 bus 0 scbus9 target 0 lun 0 > > da4: <Lexar USB Flash Drive 1100> Removable Direct Access SPC-4 SCSI device > > da4: Serial Number AAUAYQ9QH3OH4ONS > > da4: 40.000MB/s transfers > > da4: 122104MB (250068992 512 byte sectors: 255H 63S/T 15566C) > > da4: quirks=0x2<NO_6_BYTE> > > (da4:umass-sim0:0:0:0): READ(10). CDB: 28 00 0e e7 bf fe 00 00 01 00 > > (da4:umass-sim0:0:0:0): CAM status: SCSI Status Error > > (da4:umass-sim0:0:0:0): SCSI status: Check Condition > > (da4:umass-sim0:0:0:0): SCSI sense: NOT READY asc:3a,0 (Medium not present) > > (da4:umass-sim0:0:0:0): Error 6, Unretryable error > > (da4:umass-sim0:0:0:0): READ(10). CDB: 28 00 0e e7 bf ff 00 00 01 00 > > (da4:umass-sim0:0:0:0): CAM status: SCSI Status Error > > (da4:umass-sim0:0:0:0): SCSI status: Check Condition > > (da4:umass-sim0:0:0:0): SCSI sense: NOT READY asc:3a,0 (Medium not present) > > (da4:umass-sim0:0:0:0): Error 6, Unretryable error > > (da4:umass-sim0:0:0:0): READ(10). CDB: 28 00 00 00 00 01 00 00 01 00 > > (da4:umass-sim0:0:0:0): CAM status: SCSI Status Error > > (da4:umass-sim0:0:0:0): SCSI status: Check Condition > > (da4:umass-sim0:0:0:0): SCSI sense: NOT READY asc:3a,0 (Medium not present) > > (da4:umass-sim0:0:0:0): Error 6, Unretryable error > > When that's finished logging, does /dev/da4 still exist? If not, I > don't know. 'Medium not present' looks pretty serious. > > But if so, you may be able to recover most of its contents, less any bad > blocks (which will be replaced by NUL bytes), using something like: > > # dd if=/dev/da4 of=recovered.img conv=noerror,sync bs=512 > The device is still present but dd gives me the following. storage% sudo dd if=/dev/da4 of=/testdump.bin dd: /dev/da4: Device not configured 0+0 records in 0+0 records out 0 bytes transferred in 0.001363 secs (0 bytes/sec) My best guess (assuming the error is accurate) is that I cracked the BGA array and the controller chip is fine but it can't talk to the flash chip. In which case a recovery company can probably either remount it or dismount it and read it externally I hope. Damned expensive though most likely. Thanks, Jonathan
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