I can confirm this, also for U6.
HP Microserver Gen10.
smartctl returns all data es expected
root@freenas[~]# smartctl -a /dev/ada2
smartctl 6.6 2017-11-05 r4594 [FreeBSD 11.2-STABLE amd64] (local build)
Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Western Digital Red
Device Model: WDC WD40EFRX-68N32N0
Serial Number: WD-xxxxxxxxxxx
LU WWN Device Id: 5 0014ee 21069ef1c
Firmware Version: 82.00A82
User Capacity: 4,000,787,030,016 bytes [4.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 5400 rpm
Form Factor: 3.5 inches
Device is: In smartctl database [for details use: -P show]
ATA Version is: ACS-3 T13/2161-D revision 5
SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Mon Oct 14 11:00:47 2019 CEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
General SMART Values:
Offline data collection status: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection: Disabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: (43740) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 464) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SCT capabilities: (0x303d) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Short offline Completed without error 00% 6256 -
# 2 Short offline Completed without error 00% 6233 -
# 3 Short offline Completed without error 00% 6209 -
# 4 Short offline Completed without error 00% 6185 -
# 5 Short offline Completed without error 00% 6161 -
# 6 Short offline Completed without error 00% 6137 -
# 7 Short offline Completed without error 00% 6113 -
# 8 Short offline Completed without error 00% 6089 -
# 9 Short offline Completed without error 00% 6065 -
#10 Short offline Completed without error 00% 6041 -
#11 Short offline Completed without error 00% 6017 -
#12 Short offline Completed without error 00% 5993 -
#13 Short offline Completed without error 00% 5969 -
#14 Short offline Completed without error 00% 5945 -
#15 Short offline Completed without error 00% 5921 -
#16 Short offline Completed without error 00% 5897 -
#17 Short offline Completed without error 00% 5873 -
#18 Short offline Completed without error 00% 5849 -
#19 Short offline Completed without error 00% 5825 -
#20 Short offline Completed without error 00% 5801 -
#21 Short offline Completed without error 00% 5777 -
SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.