On Sat, Aug 20, 2011 at 07:54:30PM +0200, Alex Samorukov wrote: > You can run long self-test in smartmontools (-t long). Then you can > get failed sector number from the smartmontools (-l selftest) and > then you can use DD to write zero to the specific sector.
This is inaccurate advice. I covered this in my reply already as well: http://lists.freebsd.org/pipermail/freebsd-stable/2011-August/063665.html Quote: "The SMART tests you did didn't really amount to anything; no surprise. short and long tests usually do not test the surface of the disk. There are some drives which do it on a long test, but as I said before, everything varies from drive to drive." TL;DR version: smartctl -t long != smartctl -t select. The OP's drive does not support selective scans (-t select), and long turned up nothing (no surprise there either). So, using dd to find the bad LBAs is the only choice he has. > Also i am highly recommending to setup smartd as daemon and to monitor > number of relocated sectors. If they will grow again - then it is a > good time to utilize this disk. You have to know what you're looking at and how to interpret the data smartd gives you for it to be useful. -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, US | | Making life hard for others since 1977. PGP 4BD6C0CB | _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
