I contacted both sellers. This is the reply from the seller sellitoff508 that I linked in the previous post.
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During testing of these drives we pulled SMART data on every single one and saved it away. I made sure that every drive's SMART data didn't indicate any failures of any kind. It seems though that these drives have limited SMART data in comparison to what i'm used to seeing on other drives. But that's a function of how much SMART data the manufacturer decided to program into the firmware.. Either way though.. see below for an example of the SMART data exposed on one of these 2TB drives.. Hopefully it is in line with what you're hoping to see..
I cant seem to find any markings on the drives to indicate a MFG date.. but I think they're about 3 years old. But the power on time is only 2 years according to smart data.
Vendor: STEC
Product: Z16IZF2E-2TBUCZ
Revision: C22F
User Capacity: 2,000,398,934,016 bytes [2.00 TB]
Logical block size: 512 bytes
Logical Unit id: 0x5000a72030097b5d
Serial number: STM000191A29
Device type: disk
Transport protocol: SAS
Local Time is: Sat Jan 13 17:46:11 2018 EST
Device supports SMART and is Enabled
Temperature Warning Enabled
SMART Health Status: OK
SS Media used endurance indicator: 0%
Current Drive Temperature: 38 C
Drive Trip Temperature: 65 C
Elements in grown defect list: 0
Error counter log:
Errors Corrected by Total Correction Gigabytes Total
ECC rereads/ errors algorithm processed uncorrected
fast | delayed rewrites corrected invocations [10^9 bytes] errors
read: 25698178196 0 25698178196 25698178196 25698178196 127274.547 0
write: 0 0 0 0 0 4922.233 0
Non-medium error count: 0
No self-tests have been logged
Long (extended) Self Test duration: 600 seconds [10.0 minutes]
Background scan results log
Status: scan is active
Accumulated power on time, hours:minutes 18181:14 [1090874 minutes]
Number of background scans performed: 363, scan progress: 27.43%
Number of background medium scans performed: 0