Ok, I saw more sectors on a drive yesterday, so this morning, no one was
running on it, and I took it out of use, then bounced it onto a DVD, and
ran fsck -c (check for bad blocks). It finished. I bounce the server.
And SMARTD reports the sectors as "currently unreadable (pending)
sectors", and "offline uncorrectable sectors".
Does smartd cache its info somewhere, or is it reading what fsck already
marked as bad? And this has happened before, under 5.3, and under
continuing current updates of 5.4....
mark
On 02/25/2010 02:25 PM, m.roth at 5-cent.us wrote:> Ok, I saw more sectors on a drive yesterday, so this morning, no one was > running on it, and I took it out of use, then bounced it onto a DVD, and > ran fsck -c (check for bad blocks). It finished. I bounce the server. > > And SMARTD reports the sectors as "currently unreadable (pending) > sectors", and "offline uncorrectable sectors". > > Does smartd cache its info somewhere, or is it reading what fsck already > marked as bad? And this has happened before, under 5.3, and under > continuing current updates of 5.4....smartd queries the drive directly. Running "fsck -c" will have caused the drive to discover all of the unreadable sectors within that file system and mark them as "pending reallocation". Those sectors will remain in the "pending" state and visibly bad to the OS until the next time they are written. If you were able to copy all of the files from that FS without error, that suggests that all of the bad sectors are in free space, and you could stimulate reallocation by filling all of the free space with zeros: mount /dev/{whatever} /mnt dd if=/dev/zero of=/mnt/xxxxxx bs=64k sync rm /mnt/xxxxxx umount /mnt Then run "smartctl -A" on the drive and see if it still reports pending sectors. Of course if that drive is continuing to develop new bad sectors you should get rid of it immediately. -- Bob Nichols "NOSPAM" is really part of my email address. Do NOT delete it.
m.roth at 5-cent.us wrote:> Ok, I saw more sectors on a drive yesterday, so this morning, no one was > running on it, and I took it out of use, then bounced it onto a DVD, and > ran fsck -c (check for bad blocks). It finished. I bounce the server. > > And SMARTD reports the sectors as "currently unreadable (pending) > sectors", and "offline uncorrectable sectors".I recommend to replace that disc ASAP. When they start having to reallocate more sectors, they are in a pending complete failure state. Mike -- p="p=%c%s%c;main(){printf(p,34,p,34);}";main(){printf(p,34,p,34);} Oppose globalization and One World Governments like the UN. This message made from 100% recycled bits. You have found the bank of Larn. I speak only for myself, and I am unanimous in that!