Hello,who can explain what is meaning "Non-medium error" in this output. I think my hard disks have some problems.
Disk1
root@nshost2:/home/david # smartctl -a -d cciss,0 /dev/ciss0
smartctl 6.5 2016-05-07 r4318 [FreeBSD 10.3-RELEASE-p4 amd64] (local build)
Copyright (C) 2002-16, Bruce Allen...