​http://industrial.adata.com/ao/product/518

Uses a Silicon Motion SM2246EN controller

Output from smartctl -x /dev/sdX > smartctl-VENDOR-MODEL.txt attached.

Full datasheet attached.

Request to update db for shucked WDC Easystore 14 TB drive.

ATA Attributes are reported as FAIL: NOW if VALUE <= THRESH since the early days of smartmontools (2002). The same applies to FAIL: PAST if WORST <= THRESH.

This is possibly because the original SMART specs did not specify whether <= or < should be used. The official ATA specs never defined SMART attributes and declared SMART READ DATA as obsolete in ACS-4 (2017).

Some recent drives return 255 for all three values which results in a bogus FAIL: NOW status (see ticket #1396):

Device Model:     Seagate IronWolfPro ZA3840NX10001-2ZH104
...
ID# ATTRIBUTE_NAME          FLAGS    VALUE WORST THRESH FAIL RAW_VALUE
...
246 Unknown_Attribute       PO----   255   255   255    NOW  0
...
                            |______ P prefailure warning

Comparison should be changed to VALUE < THRESH to better handle such corner cases.