2009/10/29 Michaël Grünewald <michaelgrunew...@yahoo.fr>: > Hello David, > > thank you for your comments, > > David N wrote: >> >> 2009/10/29 Michaël Grünewald <michaelgrunew...@yahoo.fr>: >>> >>> === START OF READ SMART DATA SECTION === >>> SMART Self-test log structure revision number 1 >>> Num Test_Description Status Remaining >>> LifeTime(hours) >>> LBA_of_first_error >>> # 1 Extended offline Completed without error 00% 458 >>> - >>> # 2 Extended offline Aborted by host 70% 456 > > [...] >> >> If your smartctl says it has used up a spare block >> (Reallocated_Sector_Ct), replace the drive ASAP. The drives will tend >> to get more and more bad blocks after the the first one is found, >> usually because the head is damaging the disks or the head itself is >> damaged, or other reasons. If its under warranty they usually replace >> is, talk to the manufacturer before hand. > > > I have Reallocated_Sector_Ct=0 for the faulty drive. Where can I find a key > fo reading all the other exciting numbers listed under the banner > > ``SMART Attributes Data Structure revision number: 10 > Vendor Specific SMART Attributes with Thresholds:'' ? > > > On the hard-drive I use for my backups, a SAMSUNG HD501LJ, all the numbers > I read looks fine to me, but I want to be sure. Thus it would be nice have a > key for the table that `smartctl -a /dev/ad6' outputs. My two other drives, > I use to store my OS and my data, are MAXTOR STM3250820AS (I do not have a > RAID setup, it just happens that I have twin hard drives). They both have > `Reallocated_Sector_Ct=0' but have positive `Raw_Read_Error_Rate', > `Seek_Error_Rate'. Additionally, the faulty drive has positive > `Reported_incorrect=119',`Current_Pending_Sector=4294967295' and > `Offline_Uncorrectable=4294967295'. > > As looking for hints on google leads to many threads discussing hard-drive > failures, I did not find what a pleasant description of the signification of > these numbers. > -- > Kind regards, > Michaël > >
More information http://en.wikipedia.org/wiki/S.M.A.R.T. > `Seek_Error_Rate'. Additionally, the faulty drive has positive > `Reported_incorrect=119',`Current_Pending_Sector=4294967295' and > `Offline_Uncorrectable=4294967295'. It looks like your drive is trying to remap a bad block, but can't seem to do so. You may need to do a cold boot. Or force a read/write from that sector to tell the drive to try to remap it again. dd if=/dev/adX of=/dev/null skip=4294967295 count=1 (Read from the block#) Looks like your HDD with the positive Current_Pending_Sector and Offline_Uncorrectable with that is going bad. Once it manages to remap the block, your Reallocated_Sector_Ct will increase/decrease (depends on the counter), once it reaches the THRESH counter, its out of blocks to map. I would recommend you change HDD as soon as possible. Regards David N _______________________________________________ email@example.com mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"