I’ve been running a NAS at home for years.
I recently added 2 new 2TB disks, that were not recognized by SMART.
=== START OF INFORMATION SECTION === Device Model: ST2000DM001-1ER164 Serial Number: W4Z103H5 Firmware Version: CC25 User Capacity: 2,000,398,934,016 bytes Device is: Not in smartctl database [for details use: -P showall] ATA Version is: 9 ATA Standard is: Not recognized. Minor revision code: 0x001f Local Time is: Sun May 15 15:17:35 2016 CEST SMART support is: Available - device has SMART capability. SMART support is: Enabled === START OF READ SMART DATA SECTION ===
Here is how to solve this issue: