Be careful, monitor your disk system more often...Arvosana 3/5
I bought and installed two new disks (WDC WD40EFPX-68C6CN0) in the NAS configured in RAID 1.
After seven months, I heard the characteristic sounds of a disk restarting. SMART displayed unusual results for one of the disks. Diagnostics revealed that one of the disks had stopped working, resulting in a degraded RAID. Be careful, monitor your disk system more often.
Tuli