Hard Drive Health Smartctl
Command
sudo smartctl -a /dev/<disk>
SATA drive
=== START OF INFORMATION SECTION ===
Device Model: ST18000NM000J-2TV103
Serial Number: <removed>
LU WWN Device Id: 5 000c50 0db8f6278
Firmware Version: SNA1
User Capacity: 18,000,207,937,536 bytes [18.0 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 7200 rpm
Form Factor: 3.5 inches
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: ACS-4 (minor revision not indicated)
SATA Version is: SATA 3.3, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Thu Jun 9 07:53:30 2022 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: (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: ( 559) 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: (1532) minutes.
Conveyance self-test routine
recommended polling time: ( 2) minutes.
SCT capabilities: (0x70bd) 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 083 064 044 Pre-fail Always - 196036912
3 Spin_Up_Time 0x0003 090 089 000 Pre-fail Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 68
5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0
7 Seek_Error_Rate 0x000f 079 060 045 Pre-fail Always - 75482958
9 Power_On_Hours 0x0032 099 099 000 Old_age Always - 1139
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 68
18 Unknown_Attribute 0x000b 100 100 050 Pre-fail Always - 0
187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0
188 Command_Timeout 0x0032 100 100 000 Old_age Always - 0
190 Airflow_Temperature_Cel 0x0022 069 063 000 Old_age Always - 31 (Min/Max 26/34)
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 62
193 Load_Cycle_Count 0x0032 100 100 000 Old_age Always - 1773
194 Temperature_Celsius 0x0022 031 040 000 Old_age Always - 31 (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
200 Multi_Zone_Error_Rate 0x0023 100 100 001 Pre-fail Always - 0
240 Head_Flying_Hours 0x0000 100 253 000 Old_age Offline - 690 (128 138 0)
241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 29875440714
242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 163532060127
SMART Error Log Version: 1
No Errors Logged
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% 1081 -
# 2 Short offline Completed without error 00% 1009 -
# 3 Short offline Completed without error 00% 870 -
# 4 Short offline Completed without error 00% 725 -
# 5 Short offline Completed without error 00% 505 -
# 6 Short offline Completed without error 00% 457 -
# 7 Short offline Completed without error 00% 412 -
# 8 Short offline Completed without error 00% 336 -
# 9 Short offline Completed without error 00% 308 -
#10 Short offline Completed without error 00% 177 -
#11 Short offline Completed without error 00% 102 -
#12 Conveyance offline Completed without error 00% 0 -
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.
The 2 big parameters to look at are the read and write Reallocated_Sector_Ct and Current_Pending_Sector. If both are non-zero this is a strong indication of a disk that is on its way out.
SAS drive
=== START OF INFORMATION SECTION ===
Vendor: SEAGATE
Product: ST91000640SS
Revision: 0001
Compliance: SPC-3
User Capacity: 1,000,204,886,016 bytes [1.00 TB]
Logical block size: 512 bytes
Rotation Rate: 7200 rpm
Form Factor: 2.5 inches
Logical Unit id: 0x5000c50033f374e7
Serial number: <removed>
Device type: disk
Transport protocol: SAS (SPL-3)
Local Time is: Thu Jun 9 07:47:42 2022 CEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
Temperature Warning: Enabled
=== START OF READ SMART DATA SECTION ===
SMART Health Status: OK
Current Drive Temperature: 34 C
Drive Trip Temperature: 68 C
Accumulated power on time, hours:minutes 69502:43
Manufactured in week of year 20
Specified cycle count over device lifetime: 10000
Accumulated start-stop cycles: 138
Specified load-unload count over device lifetime: 300000
Accumulated load-unload cycles: 1511
Elements in grown defect list: 5
Vendor (Seagate Cache) information
Blocks sent to initiator = 3540208858
Blocks received from initiator = 2852120752
Blocks read from cache and sent to initiator = 1364406119
Number of read and write commands whose size <= segment size = 1683632186
Number of read and write commands whose size > segment size = 79251
Vendor (Seagate/Hitachi) factory information
number of hours powered up = 69502.72
number of minutes until next internal SMART test = 48
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: 777070558 0 0 777070558 0 428423.099 0
write: 0 0 22 22 22 39134.001 0
Non-medium error count: 53
SMART Self-test log
Num Test Status segment LifeTime LBA_first_err [SK ASC ASQ]
Description number (hours)
# 1 Background short Completed - 65535 - [- - -]
# 2 Background long Aborted (device reset ?) - 65535 - [- - -]
# 3 Background long Completed - 65535 - [- - -]
# 4 Background long Completed - 65535 - [- - -]
# 5 Background short Completed - 65535 - [- - -]
# 6 Background short Completed - 65535 - [- - -]
# 7 Background short Completed - 65535 - [- - -]
# 8 Background short Completed - 65535 - [- - -]
# 9 Background long Completed - 65535 - [- - -]
#10 Background short Completed - 65535 - [- - -]
#11 Background short Completed - 65535 - [- - -]
#12 Background short Completed - 65535 - [- - -]
#13 Background short Completed - 65535 - [- - -]
#14 Background short Completed - 65535 - [- - -]
#15 Background short Completed - 65535 - [- - -]
#16 Background long Completed - 65535 - [- - -]
#17 Background short Completed - 65535 - [- - -]
#18 Background short Completed - 65535 - [- - -]
#19 Background short Completed - 65535 - [- - -]
#20 Background short Completed - 65535 - [- - -]
Long (extended) Self-test duration: 12198 seconds [203.3 minutes]
The 2 big parameters to look at are the read and write Total Uncorrected Errors and Elements in grown defect list. If both are non-zero this is a strong indication of a disk that is on its way out.