I'm running six Seagate Constellation ES.3 drives in RAIDZ2 and recently had to replace one due to a high count of unreadable sectors. Now another of my drives is showing a single unreadable sector. I'd feel bad exchanging another drive with the seller so is there any way of repairing the bad...

Buongiorno a tutti! ;) I have a problem with a disk of my RAID-Z2, are some months the there are 5 pending sectors and I have tried to solve this problem in several ways but without success. This are the SMART results: smartctl 6.5 2016-05-07 r4318 [FreeBSD 10.3-STABLE amd64] (local build)...