I’m going to add this just for clarification purposes (and to see if the “boot drive” is really failing or if that error was a one-off.
truenas_admin@truenas[~]$ sudo smartctl -x /dev/sdh
smartctl 7.4 2023-08-01 r5530 [x86_64-linux-6.6.44-production+truenas] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Device Model: 16GB SATA Flash Drive
Serial Number: (removed for the posting)
LU WWN Device Id: 5 dc663a 657a00100
Firmware Version: SFDK002A
User Capacity: 16,013,942,784 bytes [16.0 GB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: Solid State Device
Form Factor: 2.5 inches
TRIM Command: Available
Device is: Not in smartctl database 7.3/5706
ATA Version is: ACS-2 T13/2015-D revision 3
SATA Version is: SATA 3.2, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Sun May 11 13:51:38 2025 CDT
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
AAM feature is: Unavailable
APM feature is: Disabled
Rd look-ahead is: Enabled
Write cache is: Enabled
DSN feature is: Unavailable
ATA Security is: Disabled, NOT FROZEN [SEC1]
Wt Cache Reorder: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
General SMART Values:
Offline data collection status: (0x02) Offline data collection activity
was completed without error.
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: ( 32) seconds.
Offline data collection
capabilities: (0x5b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
No 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: ( 1) minutes.
Extended self-test routine
recommended polling time: ( 1) minutes.
SCT capabilities: (0x0039) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.
SMART Attributes Data Structure revision number: 0
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAGS VALUE WORST THRESH FAIL RAW_VALUE
9 Power_On_Hours -O–C- 100 100 000 - 43064
12 Power_Cycle_Count -O–C- 100 100 000 - 132
163 Unknown_Attribute ------ 100 100 001 - 2421
164 Unknown_Attribute ------ 100 100 001 - 442
166 Unknown_Attribute ------ 100 100 010 - 0
167 Unknown_Attribute -O—K 100 100 000 - 0
168 Unknown_Attribute -O–C- 100 100 000 - 0
175 Program_Fail_Count_Chip PO–C- 100 100 010 - 0
192 Power-Off_Retract_Count -O–C- 100 100 000 - 91
194 Temperature_Celsius -O—K 060 060 030 - 40 (Min/Max 30/60)
241 Total_LBAs_Written -O–CK 100 100 000 - 5170891732
||||||_ K auto-keep
|||||__ C event count
||||___ R error rate
|||____ S speed/performance
||_____ O updated online
|______ P prefailure warning
General Purpose Log Directory Version 1
SMART Log Directory Version 1 [multi-sector log support]
Address Access R/W Size Description
0x00 GPL,SL R/O 1 Log Directory
0x01 SL R/O 1 Summary SMART error log
0x02 SL R/O 51 Comprehensive SMART error log
0x03 GPL R/O 64 Ext. Comprehensive SMART error log
0x04 GPL,SL R/O 8 Device Statistics log
0x06 SL R/O 1 SMART self-test log
0x07 GPL R/O 1 Extended self-test log
0x09 SL R/W 1 Selective self-test log
0x10 GPL R/O 1 NCQ Command Error log
0x11 GPL R/O 1 SATA Phy Event Counters log
0x30 GPL,SL R/O 9 IDENTIFY DEVICE data log
0x80-0x9f GPL,SL R/W 16 Host vendor specific log
0xe0 GPL,SL R/W 1 SCT Command/Status
0xe1 GPL,SL R/W 1 SCT Data Transfer
SMART Extended Comprehensive Error Log Version: 1 (64 sectors)
Device Error Count: 1
CR = Command Register
FEATR = Features Register
COUNT = Count (was: Sector Count) Register
LBA_48 = Upper bytes of LBA High/Mid/Low Registers ] ATA-8
LH = LBA High (was: Cylinder High) Register ] LBA
LM = LBA Mid (was: Cylinder Low) Register ] Register
LL = LBA Low (was: Sector Number) Register ]
DV = Device (was: Device/Head) Register
DC = Device Control Register
ER = Error register
ST = Status register
Powered_Up_Time is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It “wraps” after 49.710 days.
Error 1 [0] occurred at disk power-on lifetime: 40429 hours (1684 days + 13 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER – ST COUNT LBA_48 LH LM LL DV DC
– – – == – == == == – – – – –
00 – 50 00 20 00 00 00 49 a9 c8 40 08 at LBA = 0x0049a9c8 = 4827592
Commands leading to the command that caused the error were:
CR FEATR COUNT LBA_48 LH LM LL DV DC Powered_Up_Time Command/Feature_Name
– == – == – == == == – – – – – --------------- --------------------
61 00 c8 00 20 00 00 00 49 a9 c8 40 08 39d+23:26:01.695 WRITE FPDMA QUEUED
61 00 c8 00 20 00 00 00 49 a9 c8 40 08 39d+23:26:01.632 WRITE FPDMA QUEUED
61 00 08 00 38 00 00 00 49 a9 b8 40 08 39d+23:26:01.600 WRITE FPDMA QUEUED
61 00 20 00 18 00 00 00 43 84 40 40 08 39d+23:26:01.567 WRITE FPDMA QUEUED
61 00 10 00 30 00 00 01 a8 87 70 40 08 39d+23:26:01.535 WRITE FPDMA QUEUED
SMART Extended Self-test Log Version: 1 (1 sectors)
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
1 Extended offline Completed without error 00% 43048 -
2 Short offline Completed without error 00% 39394 -
3 Short offline Completed without error 00% 34395 -
4 Short offline Completed without error 00% 34394 -
5 Short offline Completed without error 00% 34393 -
6 Short offline Completed without error 00% 34392 -
7 Short offline Completed without error 00% 34391 -
8 Short offline Completed without error 00% 34390 -
9 Short offline Completed without error 00% 34389 -
#10 Short offline Completed without error 00% 34388 -
#11 Short offline Completed without error 00% 34387 -
#12 Short offline Completed without error 00% 34386 -
#13 Short offline Completed without error 00% 34385 -
#14 Short offline Completed without error 00% 34384 -
#15 Short offline Completed without error 00% 34383 -
#16 Short offline Completed without error 00% 34382 -
#17 Short offline Completed without error 00% 34381 -
#18 Short offline Completed without error 00% 34380 -
#19 Short offline Completed without error 00% 34379 -
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.
SCT Status Version: 3
SCT Version (vendor specific): 1 (0x0001)
Device State: Active (0)
Current Temperature: 0 Celsius
Power Cycle Min/Max Temperature: --/ 0 Celsius
Lifetime Min/Max Temperature: --/ 0 Celsius
SCT Temperature History Version: 2
Temperature Sampling Period: 1 minute
Temperature Logging Interval: 1 minute
Min/Max recommended Temperature: -127/127 Celsius
Min/Max Temperature Limit: -127/127 Celsius
Temperature History Size (Index): 478 (20)
Index Estimated Time Temperature Celsius
21 2025-05-11 05:54 40 *********************
… …(239 skipped). … *********************
261 2025-05-11 09:54 40 *********************
262 2025-05-11 09:55 ? -
263 2025-05-11 09:56 40 *********************
… …(118 skipped). … *********************
382 2025-05-11 11:55 40 *********************
383 2025-05-11 11:56 ? -
384 2025-05-11 11:57 40 *********************
… …(113 skipped). … *********************
20 2025-05-11 13:51 40 *********************
SCT Error Recovery Control:
Read: 70 (7.0 seconds)
Write: 70 (7.0 seconds)
Device Statistics (GP Log 0x04)
Page Offset Size Value Flags Description
0x01 ===== = = === == General Statistics (rev 2) ==
0x01 0x008 4 132 — Lifetime Power-On Resets
0x01 0x018 6 5170827972 — Logical Sectors Written
0x01 0x020 6 68037338 — Number of Write Commands
0x01 0x028 6 10135136603 — Logical Sectors Read
0x01 0x030 6 550769085 — Number of Read Commands
0x01 0x038 6 155030400000 — Date and Time TimeStamp
0x07 ===== = = === == Solid State Device Statistics (rev 1) ==
0x07 0x008 1 0 N-- Percentage Used Endurance Indicator
|||_ C monitored condition met
||__ D supports DSN
|___ N normalized value
Pending Defects log (GP Log 0x0c) not supported
SATA Phy Event Counters (GP Log 0x11)
ID Size Value Description
0x0001 2 0 Command failed due to ICRC error
0x0002 2 0 R_ERR response for data FIS
0x0003 2 0 R_ERR response for device-to-host data FIS
0x0009 4 3 Transition from drive PhyRdy to drive PhyNRdy
0x000a 4 2 Device-to-host register FISes sent due to a COMRESET
0x000f 2 0 R_ERR response for host-to-device data FIS, CRC
All of the S.M.A.R.T. tests seem to pass, and it seems like that was a one-time error. It very well could have been something that I did at the time, or a power outage at the exact wrong time.
I’m off to flash a USB thumb drive, so I can reinstall. And then look for a drive caddy for the 2.5" drive at the top of the unit (it didn’t come with one, so I want to add one in).
Have a great day. 
Patrick.