http://blog.linuxbrujo.net/enThu, 11 Feb 2016 08:41:34 GMThttps://getnikola.com/http://blogs.law.harvard.edu/tech/rsshttp://blog.linuxbrujo.net/posts/how-to-knock-sense-into-hdd/Linux Brujo<div><p class="lead">A couple of days ago I saved two my HDDs using a sort of magic.</p> <p>Symptoms were almost identical: during the boot up OS dumped on a terminal a bunch of errors, and the same errors regularly appeared in logs. It was somewhat like this:</p> <pre class="literal-block"> Mar 31 07:31:31 rohan kernel: [ 1.640757] ata5.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0 Mar 31 07:31:31 rohan kernel: [ 1.641114] ata5.00: irq_stat 0x40000008 Mar 31 07:31:31 rohan kernel: [ 1.641317] ata5.00: failed command: READ FPDMA QUEUED Mar 31 07:31:31 rohan kernel: [ 1.641582] ata5.00: cmd 60/08:00:50:00:02/00:00:00:00:00/40 tag 0 ncq 4096 in Mar 31 07:31:31 rohan kernel: [ 1.641582] res 41/40:00:52:00:02/00:00:00:00:00/40 Emask 0x409 (media error) &lt;F&gt; Mar 31 07:31:31 rohan kernel: [ 1.642365] ata5.00: status: { DRDY ERR } Mar 31 07:31:31 rohan kernel: [ 1.642570] ata5.00: error: { UNC } Mar 31 07:31:31 rohan kernel: [ 1.650046] ata5.00: configured for UDMA/133 Mar 31 07:31:31 rohan kernel: [ 1.650057] sd 4:0:0:0: [sdb] Unhandled sense code Mar 31 07:31:31 rohan kernel: [ 1.650061] sd 4:0:0:0: [sdb] Mar 31 07:31:31 rohan kernel: [ 1.650064] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Mar 31 07:31:31 rohan kernel: [ 1.650067] sd 4:0:0:0: [sdb] Mar 31 07:31:31 rohan kernel: [ 1.650069] Sense Key : Medium Error [current] [descriptor] Mar 31 07:31:31 rohan kernel: [ 1.650075] Descriptor sense data with sense descriptors (in hex): Mar 31 07:31:31 rohan kernel: [ 1.650078] 72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00 Mar 31 07:31:31 rohan kernel: [ 1.650094] 00 02 00 52 Mar 31 07:31:31 rohan kernel: [ 1.650101] sd 4:0:0:0: [sdb] Mar 31 07:31:31 rohan kernel: [ 1.650104] Add. Sense: Unrecovered read error - auto reallocate failed Mar 31 07:31:31 rohan kernel: [ 1.650108] sd 4:0:0:0: [sdb] CDB: Mar 31 07:31:31 rohan kernel: [ 1.650110] Read(10): 28 00 00 02 00 50 00 00 08 00 Mar 31 07:31:31 rohan kernel: [ 1.650123] end_request: I/O error, dev sdb, sector 131154 Mar 31 07:31:31 rohan kernel: [ 1.650416] Buffer I/O error on device sdb2, logical block 1 Mar 31 07:31:31 rohan kernel: [ 1.650711] ata5: EH complete </pre> <p><a href="http://blog.linuxbrujo.net/posts/how-to-knock-sense-into-hdd/">Read more…</a> (1 min remaining to read)</p></div>hardwaremagichttp://blog.linuxbrujo.net/posts/how-to-knock-sense-into-hdd/Sat, 12 Apr 2014 09:11:16 GMT