Excellent. All recent big disks over 8 TB from all vendors have excellent reliability. HGST/WD Helium drives are particularly good; I configured and installed m

Excellent. All recent big disks over 8 TB from all vendors have excellent reliability. HGST/WD Helium drives are particularly good; I configured and installed many hundreds from 6 to 12 TB in the past 4 years, and not a single one failed yet.