Hi all. I just wanted to share a small success story, partly for the archives.
I have an OpenBSD 6.5 amd64 server whose smartd has been whining about: smartd[666]: Device: /dev/sd0c, 1 Currently unreadable (pending) sectors smartctl -a /dev/sd0c showed attribute 197 Current_Pending_Sector to be 1. The disk is part of a softraid mirror sd2, so I offlined the disk and rebuilt the mirror, thusly: bioctl -O /dev/sd0a sd2 bioctl -R /dev/sd0a sd2 After a few hours of parity rebuild smartd has stopped spamming /var/log/messages, and smartctl -a shows Current_Pending_Sector to be 0. The parity rebuild, as expected, must have re-written the broken sector and the disk reallocated the sector. Sysadmin is happy! Except that smartctl -a informs me that the disk predicts its power-on lifetime to be 382 days, which apparently is not good. The other disk in the mirror says nothing of this, so I have a very early warning about getting a new disk... (sd0a's Reallocated_Sector_Ct is 148 while sd0b's is 0) Best regards -- / Raimo Niskanen, Erlang/OTP, Ericsson AB