Volker Armin Hemmann <[email protected]> [14-07-26 18:00]: > Am 26.07.2014 14:16, schrieb [email protected]: > > Volker Armin Hemmann <[email protected]> [14-07-26 14:08]: > >> Am 26.07.2014 12:26, schrieb [email protected]: > >>> Mick <[email protected]> [14-07-26 11:28]: > >>>> On Saturday 26 Jul 2014 02:49:15 [email protected] wrote: > >>>>> Hi, > >>>>> > >>>>> After running smartctl for an extended offline test I got > >>>>> a badblock (information extracted from the report): > >>>>> > >>>>> SMART Self-test log structure revision number 1 > >>>>> Num Test_Description Status Remaining > >>>>> LifeTime(hours) > >>>>> LBA_of_first_error # 1 Extended offline Completed: read failure > >>>>> > >>>>> 90% 14460 4288352511 197 Current_Pending_Sector 0x0032 > >>>>> 200 > >>>>> 200 000 Old_age Always - 1 > >>>>> > >>>>> I found a explanation to map the LBA to a partition here: > >>>>> http://smartmontools.sourceforge.net/badblockhowto.html > >>>>> > >>>>> My partition layout is: > >>>>> #> sudo fdisk -lu /dev/sda > >>>>> > >>>>> Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors > >>>>> Units: sectors of 1 * 512 = 512 bytes > >>>>> Sector size (logical/physical): 512 bytes / 512 bytes > >>>>> I/O size (minimum/optimal): 512 bytes / 512 bytes > >>>>> Disklabel type: dos > >>>>> Disk identifier: 0x07ec16a2 > >>>>> > >>>>> Device Boot Start End Blocks Id System > >>>>> /dev/sda1 * 2048 104447 51200 83 Linux > >>>>> /dev/sda2 104448 12687359 6291456 82 Linux swap / Solaris > >>>>> /dev/sda3 12687360 222402559 104857600 83 Linux > >>>>> /dev/sda4 222402560 1953525167 865561304 5 Extended > >>>>> /dev/sda5 222404608 232890367 5242880 83 Linux > >>>>> /dev/sda6 232892416 442607615 104857600 83 Linux > >>>>> /dev/sda7 442609664 652324863 104857600 83 Linux > >>>>> /dev/sda8 652326912 862042111 104857600 83 Linux > >>>>> /dev/sda9 862044160 1071759359 104857600 83 Linux > >>>>> /dev/sda10 1071761408 1281476607 104857600 83 Linux > >>>>> /dev/sda11 1281478656 1491193855 104857600 83 Linux > >>>>> /dev/sda12 1491195904 1953525167 231164632 83 Linux > >>>>> 4288352511 <<< The number reported by smartctl > >>>>> > >>>>> > >>>>> Following the linked document... > >>>>> It seems the bad LBA is not on the checked harddisk. > >>>>> > >>>>> Or (more obvious) I did something wrong... > >>>> You are probably comparing different units. The Start and End of fdisk > >>>> are > >>>> reporting sectors, each sector being 512 bytes. Therefore if the LBA is > >>>> reported by smartctl in bytes, you have: > >>>> > >>>> 4,288,352,511 ÷ 512 = 8,375,688.5 > >>>> > >>>> which would place it within your swap partition. > >>>> > >>>> I would do this: > >>>> > >>>> swapoff /dev/sda2 > >>>> > >>>> dd if=/dev/zero of=/dev/sda2 bs=512 conv=notrunc > >>>> > >>>> mkswap -L swap -c /dev/sda2 > >>>> > >>>> swapon /dev/sda2 > >>>> > >>>> and hopefully the problem will be gone when you run the next smartctl > >>>> test. > >>>> > >>>> -- > >>>> Regards, > >>>> Mick > >>> Sorry for stuutering postings...overlocked this one: > >>> #>dd if=/dev/zero of=/dev/sda2 bs=512 conv=notrunc > >>> dd: error writing ‘/dev/sda2’: Input/output error > >>> > >>> Hrrrmpfff... > >>> > >>> Why does it nt remap those ones? > >>> > >>> Best regards, > >>> mcc > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >> smartctl -a /dev/sda > >> > >> without those information: crystal ball. > >> > >> that said: it is swap. You shouldn't have to do anything. Don't touch dd. > >> > >> > >> > > > so you got one defective sector, the drive knows about it, it has 200 > spares and will use one when the need arises. > > >
Unfortunaltely: No it doesnt. I did a dd (as reported previously) of zeroes accross the affected partition and dd fails to write ot the sector in question (IO error). The selftest following again reports that sector as bad. So...? Best regards, mcc
