[Sony Xperia XZ2 ROMs, Kernels, Recoveries, & Other] MartinX3:
Self-test execution status: ( 0)	The previous self-test routine completed
without error or no self-test has ever
been run.

Now looking to save the files and reformat the filesystem of 2TB.

Seems like HDD's hate hot swapping and I should never turn of the HDD dock station.

better let the HDD firmware going into standby by itself.

But maybe someone understands SMART better than me.

I see only ATA errors like broken cable or like I did too early shutdown the HDD.

I did a

sudo smartctl -t long /dev/sdb

$ sudo smartctl /dev/sdb -a
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.18.0-16-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family: Toshiba 3.5" DT01ABA... Desktop HDD
Device Model: TOSHIBA DT01ABA300
Serial Number: XXXXXXX
LU WWN Device Id: X XXXXXX XXXXXX
Firmware Version: MZ6OABB0
User Capacity: 3.000.592.982.016 bytes [3,00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 5940 rpm
Form Factor: 3.5 inches
Device is: In smartctl database [for details use: -P show]
ATA Version is: ATA8-ACS T13/1699-D revision 4
SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Thu Mar 21 20:38:58 2019 CET
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: (0x84)	Offline data collection activity
was suspended by an interrupting command from host.
Auto Offline Data Collection: Enabled.
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:	(26282) 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:	( 438) minutes.
SCT capabilities:	(0x003d)	SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000b 100 100 016 Pre-fail Always - 0
2 Throughput_Performance 0x0005 144 144 054 Pre-fail Offline - 81
3 Spin_Up_Time 0x0007 137 137 024 Pre-fail Always - 398 (Average 401)
4 Start_Stop_Count 0x0012 100 100 000 Old_age Always - 2287
5 Reallocated_Sector_Ct 0x0033 100 100 005 Pre-fail Always - 0
7 Seek_Error_Rate 0x000b 100 100 067 Pre-fail Always - 0
8 Seek_Time_Performance 0x0005 138 138 020 Pre-fail Offline - 33
9 Power_On_Hours 0x0012 100 100 000 Old_age Always - 2504
10 Spin_Retry_Count 0x0013 100 100 060 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 2073
192 Power-Off_Retract_Count 0x0032 099 099 000 Old_age Always - 2338
193 Load_Cycle_Count 0x0012 099 099 000 Old_age Always - 2338
194 Temperature_Celsius 0x0002 166 166 000 Old_age Always - 36 (Min/Max 18/55)
196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0
197 Current_Pending_Sector 0x0022 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0008 100 100 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x000a 200 200 000 Old_age Always - 25

SMART Error Log Version: 1
ATA Error Count: 25 (device log contains only the most recent five errors)
CR = Command Register [HEX]
FR = Features Register [HEX]
SC = Sector Count Register [HEX]
SN = Sector Number Register [HEX]
CL = Cylinder Low Register [HEX]
CH = Cylinder High Register [HEX]
DH = Device/Head Register [HEX]
DC = Device Command Register [HEX]
ER = Error register [HEX]
ST = Status register [HEX]
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 25 occurred at disk power-on lifetime: 1531 hours (63 days + 19 hours)
When the command that caused the error occurred, the device was active or idle.

After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
84 51 40 c0 42 6f 0c Error: ICRC, ABRT at LBA = 0x0c6f42c0 = 208618176

Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
61 00 10 00 50 70 40 00 00:14:28.869 WRITE FPDMA QUEUED
61 00 20 00 4c 70 40 00 00:14:28.866 WRITE FPDMA QUEUED
61 00 18 00 48 70 40 00 00:14:28.864 WRITE FPDMA QUEUED
61 00 00 00 44 6f 40 00 00:14:28.861 WRITE FPDMA QUEUED
61 00 08 00 40 6f 40 00 00:14:28.861 WRITE FPDMA QUEUED

Error 24 occurred at disk power-on lifetime: 1460 hours (60 days + 20 hours)
When the command that caused the error occurred, the device was active or idle.

After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
84 51 40 c0 7c ed 06 Error: ICRC, ABRT at LBA = 0x06ed7cc0 = 116227264

Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
61 00 d0 00 28 f7 40 00 00:05:09.932 WRITE FPDMA QUEUED
61 00 00 00 24 f7 40 00 00:05:09.929 WRITE FPDMA QUEUED
61 00 c8 00 20 f7 40 00 00:05:09.926 WRITE FPDMA QUEUED
61 00 c0 00 1c f7 40 00 00:05:09.923 WRITE FPDMA QUEUED
61 00 b8 00 18 f7 40 00 00:05:09.919 WRITE FPDMA QUEUED

Error 23 occurred at disk power-on lifetime: 1327 hours (55 days + 7 hours)
When the command that caused the error occurred, the device was active or idle.

After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
84 51 e0 20 8d 2d 0f Error: ICRC, ABRT at LBA = 0x0f2d8d20 = 254643488

Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
61 00 08 00 f4 2d 40 00 03:34:40.263 WRITE FPDMA QUEUED
61 00 00 00 f0 2d 40 00 03:34:40.252 WRITE FPDMA QUEUED
61 00 d8 00 ec 2d 40 00 03:34:40.240 WRITE FPDMA QUEUED
61 00 d0 00 e8 2d 40 00 03:34:40.228 WRITE FPDMA QUEUED
61 00 c8 00 e4 2d 40 00 03:34:40.216 WRITE FPDMA QUEUED

Error 22 occurred at disk power-on lifetime: 446 hours (18 days + 14 hours)
When the command that caused the error occurred, the device was active or idle.

After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
84 51 00 00 00 00 00 Error: ABRT

Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
ef 05 01 01 00 00 00 00 00:09:04.459 SET FEATURES [Enable APM]
ec 00 01 01 00 00 00 00 00:09:04.458 IDENTIFY DEVICE
ea 00 01 01 00 00 00 04 00:09:04.441 FLUSH CACHE EXT
ea 00 01 01 00 00 00 04 00:09:04.423 FLUSH CACHE EXT
ea 00 01 01 00 00 a0 ff 00:09:04.393 FLUSH CACHE EXT

Error 21 occurred at disk power-on lifetime: 352 hours (14 days + 16 hours)
When the command that caused the error occurred, the device was active or idle.

After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
84 51 00 00 00 00 00 Error: ABRT

Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
ef 05 01 01 00 00 00 00 00:01:33.936 SET FEATURES [Enable APM]
ec 03 01 01 00 00 00 00 00:01:33.935 IDENTIFY DEVICE
ef 03 01 01 00 00 00 04 00:01:33.917 SET FEATURES [Set transfer mode]
ef 03 01 01 00 00 00 04 00:01:33.900 SET FEATURES [Set transfer mode]
ef 03 01 01 00 00 a0 ff 00:01:33.870 SET FEATURES [Set transfer mode]

SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 2502 -

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.