Joeschmuck, thank you for replying.
The output of the smartctl -a /dev/ada2 is displayed below. This smartctl output was run after I got the 197, 198 errors and had run both the SMART long and short tests. The SMART tests were run on both my FreeNAS system via the smartctl command and via the bootable SeaTools SMART tests. The output of the SeaTools SMART tests (both long and short) just said "PASSED". No other information was given.
If you need it, I also have the output of the smartctl tests which include the original SMART errors (197,198 etc).
I think what the smartctl output is telling me is that errors were found, but have been corrected. Not sure if this means the drive is failing or not. I have contacted Seagate but they appear reluctant to RMA the drive. The drive is only a little under 3 months in use.
I know the FreeNAS community appear to recommend the WD Red drives, but after WD sneaking SMR drives out to the unsuspecting public, I decided to go with the SeaGate IronWolf drives which I knew were CMR.
So please let me know if I should be worried about this drive. In the meantime, I think I'll do some more reading on what SMART really does and how it works.
Thanks for you help.
Greg ...
=== START OF INFORMATION SECTION ===
Model Family: Seagate IronWolf
Device Model: ST4000VN008-2DR166
Serial Number: ZGY7xxxx
LU WWN Device Id: 5 000c50 0c6a0dbbe
Firmware Version: SC60
User Capacity: 4,000,787,030,016 bytes [4.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 5980 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: 3.0 Gb/s)
Local Time is: Fri Nov 13 07:43:23 2020 PST
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: (0x82) Offline data collection activity
was completed without error.
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: ( 591) 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: ( 1) minutes.
Extended self-test routine
recommended polling time: ( 643) minutes.
Conveyance self-test routine
recommended polling time: ( 2) minutes.
SCT capabilities: (0x50bd) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.
SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000f 084 064 044 Pre-fail Always - 230826740
3 Spin_Up_Time 0x0003 094 093 000 Pre-fail Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 34
5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0
7 Seek_Error_Rate 0x000f 075 060 045 Pre-fail Always - 31071951
9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 455 (198 88 0)
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 34
184 End-to-End_Error 0x0032 100 100 099 Old_age Always - 0
187 Reported_Uncorrect 0x0032 095 095 000 Old_age Always - 5
188 Command_Timeout 0x0032 100 100 000 Old_age Always - 0
189 High_Fly_Writes 0x003a 100 100 000 Old_age Always - 0
190 Airflow_Temperature_Cel 0x0022 081 057 040 Old_age Always - 19 (Min/Max 17/19)
191 G-Sense_Error_Rate 0x0032 100 100 000 Old_age Always - 0
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 2
193 Load_Cycle_Count 0x0032 100 100 000 Old_age Always - 47
194 Temperature_Celsius 0x0022 019 043 000 Old_age Always - 19 (0 16 0 0 0)
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always - 0
240 Head_Flying_Hours 0x0000 100 253 000 Old_age Offline - 455 (167 174 0)
241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 10348167458
242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 28674199407
SMART Error Log Version: 1
ATA Error Count: 5
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 5 occurred at disk power-on lifetime: 403 hours (16 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
-- -- -- -- -- -- --
40 51 00 ff ff ff 0f Error: UNC at LBA = 0x0fffffff = 268435455
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
25 00 00 ff ff ff 4f 00 1d+07:10:37.235 READ DMA EXT
25 00 00 ff ff ff 4f 00 1d+07:10:34.255 READ DMA EXT
25 00 00 ff ff ff 4f 00 1d+07:10:31.295 READ DMA EXT
25 00 00 ff ff ff 4f 00 1d+07:10:28.314 READ DMA EXT
25 00 00 ff ff ff 4f 00 1d+07:10:25.388 READ DMA EXT
Error 4 occurred at disk power-on lifetime: 403 hours (16 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
-- -- -- -- -- -- --
40 51 00 ff ff ff 0f Error: UNC at LBA = 0x0fffffff = 268435455
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
25 00 00 ff ff ff 4f 00 1d+07:10:34.255 READ DMA EXT
25 00 00 ff ff ff 4f 00 1d+07:10:31.295 READ DMA EXT
25 00 00 ff ff ff 4f 00 1d+07:10:28.314 READ DMA EXT
25 00 00 ff ff ff 4f 00 1d+07:10:25.388 READ DMA EXT
25 00 00 ff ff ff 4f 00 1d+07:10:25.387 READ DMA EXT
Error 3 occurred at disk power-on lifetime: 403 hours (16 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
-- -- -- -- -- -- --
40 51 00 ff ff ff 0f Error: UNC at LBA = 0x0fffffff = 268435455
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
25 00 00 ff ff ff 4f 00 1d+07:10:31.295 READ DMA EXT
25 00 00 ff ff ff 4f 00 1d+07:10:28.314 READ DMA EXT
25 00 00 ff ff ff 4f 00 1d+07:10:25.388 READ DMA EXT
25 00 00 ff ff ff 4f 00 1d+07:10:25.387 READ DMA EXT
25 00 00 ff ff ff 4f 00 1d+07:10:25.386 READ DMA EXT
Error 2 occurred at disk power-on lifetime: 403 hours (16 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
-- -- -- -- -- -- --
40 51 00 ff ff ff 0f Error: UNC at LBA = 0x0fffffff = 268435455
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
25 00 00 ff ff ff 4f 00 1d+07:10:28.314 READ DMA EXT
25 00 00 ff ff ff 4f 00 1d+07:10:25.388 READ DMA EXT
25 00 00 ff ff ff 4f 00 1d+07:10:25.387 READ DMA EXT
25 00 00 ff ff ff 4f 00 1d+07:10:25.386 READ DMA EXT
25 00 80 ff ff ff 4f 00 1d+07:10:25.386 READ DMA EXT
Error 1 occurred at disk power-on lifetime: 403 hours (16 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
-- -- -- -- -- -- --
40 51 00 ff ff ff 0f Error: UNC at LBA = 0x0fffffff = 268435455
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
25 00 00 ff ff ff 4f 00 1d+07:10:25.388 READ DMA EXT
25 00 00 ff ff ff 4f 00 1d+07:10:25.387 READ DMA EXT
25 00 00 ff ff ff 4f 00 1d+07:10:25.386 READ DMA EXT
25 00 80 ff ff ff 4f 00 1d+07:10:25.386 READ DMA EXT
25 00 80 ff ff ff 4f 00 1d+07:10:25.385 READ DMA EXT
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% 443 -
# 2 Short offline Completed without error 00% 442 -
# 3 Short offline Completed without error 00% 436 -
# 4 Extended offline Completed without error 00% 415 -
# 5 Short offline Completed without error 00% 399 -
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.
