I need to check the healthy of SSD in a Linux System, i'm using smartctl but frankly i'm far to completely understand how to read the report.
By thge way, i has a linux ws that during the boot drops in busybox, after that i run fsck from a live version and at that point the system seems booting correctly but i found a lot of ata error running dmesg and in the syslog reiceving also smarmtd alert by mail.
Just to be sure i have have re-seat the cable and then and all the ata errors disappeared from the syslog and just to be sure i run also the smarctl -a before and after re-seat the cable. Where the main difference of the report was what the Soft Read Error Rate changed in the RAW Value from 53 to 0.
Below the report
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.15.0-64-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Device Model: SK hynix SC308 SATA 512GB
Firmware Version: 30001P10
User Capacity: 512.110.190.592 bytes [512 GB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: Solid State Device
Form Factor: 2.5 inches
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: ACS-2 (minor revision not indicated)
SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Tue Jan 21 13:14:02 2020 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: (0x06) Offline data collection activity
was aborted by the device with a fatal error.
Auto Offline Data Collection: Disabled.
Self-test execution status: ( 121) The previous self-test completed having
the read element of the test failed.
Total time to complete Offline
data collection: ( 113) seconds.
Offline data collection
capabilities: (0x19) SMART execute Offline immediate.
No Auto Offline data collection support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
No Conveyance Self-test supported.
No Selective Self-test supported.
SMART capabilities: (0x0002) Does not save 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: ( 40) minutes.
SMART Attributes Data Structure revision number: 0
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 166 166 006 Pre-fail Always - 0
5 Reallocated_Sector_Ct 0x0032 253 100 036 Old_age Always - 0
9 Power_On_Hours 0x0032 076 076 000 Old_age Always - 21844
12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 90
100 Unknown_Attribute 0x0032 098 098 000 Old_age Always - 89557139
171 Unknown_Attribute 0x0032 253 253 000 Old_age Always - 0
172 Unknown_Attribute 0x0032 253 253 000 Old_age Always - 0
174 Unknown_Attribute 0x0030 100 100 000 Old_age Offline - 44
175 Program_Fail_Count_Chip 0x0032 253 253 000 Old_age Always - 0
176 Erase_Fail_Count_Chip 0x0032 253 253 000 Old_age Always - 0
177 Wear_Leveling_Count 0x0032 037 037 000 Old_age Always - 678
178 Used_Rsvd_Blk_Cnt_Chip 0x0032 100 100 000 Old_age Always - 96
179 Used_Rsvd_Blk_Cnt_Tot 0x0032 100 100 000 Old_age Always - 578
180 Unused_Rsvd_Blk_Cnt_Tot 0x0032 100 100 000 Old_age Always - 10430
181 Program_Fail_Cnt_Total 0x0032 253 253 000 Old_age Always - 0
182 Erase_Fail_Count_Total 0x0032 253 253 000 Old_age Always - 0
183 Runtime_Bad_Block 0x0032 253 253 000 Old_age Always - 0
187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 57
188 Command_Timeout 0x0032 253 253 000 Old_age Always - 0
191 Unknown_SSD_Attribute 0x0032 253 253 000 Old_age Always - 0
194 Temperature_Celsius 0x0002 029 000 000 Old_age Always - 29 (Min/Max 12/67)
195 Hardware_ECC_Recovered 0x0032 086 001 000 Old_age Always - 601307169
199 UDMA_CRC_Error_Count 0x0032 253 253 000 Old_age Always - 0
201 Unknown_SSD_Attribute 0x000e 100 100 000 Old_age Always - 0
204 Soft_ECC_Correction 0x000e 062 001 000 Old_age Always - 2385
231 Temperature_Celsius 0x0033 037 037 010 Pre-fail Always - 64
234 Unknown_Attribute 0x0032 100 100 000 Old_age Always - 737161747424
241 Total_LBAs_Written 0x0032 100 100 000 Old_age Always - 30426218811
242 Total_LBAs_Read 0x0032 100 100 000 Old_age Always - 34274508669
250 Read_Error_Retry_Rate 0x0032 100 100 000 Old_age Always - 40205059
SMART Error Log Version: 1
ATA Error Count: 190 (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 190 occurred at disk power-on lifetime: 21729 hours (905 days + 9 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 41 00 00 00 00 00 Error: UNC at LBA = 0x00000000 = 0
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
60 40 18 40 7f 43 40 40 2d+02:29:23.530 READ FPDMA QUEUED
60 48 10 f0 7e 43 40 40 2d+02:29:23.530 READ FPDMA QUEUED
60 08 08 e0 7e 43 40 40 2d+02:29:23.530 READ FPDMA QUEUED
60 50 00 88 7e 43 40 40 2d+02:29:23.530 READ FPDMA QUEUED
60 08 90 c0 99 0d 40 40 2d+02:29:23.530 READ FPDMA QUEUED
Error 189 occurred at disk power-on lifetime: 21729 hours (905 days + 9 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 41 00 00 00 00 00 Error: UNC at LBA = 0x00000000 = 0
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
60 08 50 c0 99 0d 40 40 2d+02:29:23.490 READ FPDMA QUEUED
60 08 48 b8 99 0d 40 40 2d+02:29:23.490 READ FPDMA QUEUED
60 08 40 b0 99 0d 40 40 2d+02:29:23.490 READ FPDMA QUEUED
60 08 38 a8 99 0d 40 40 2d+02:29:23.490 READ FPDMA QUEUED
60 08 30 a0 99 0d 40 40 2d+02:29:23.490 READ FPDMA QUEUED
Error 188 occurred at disk power-on lifetime: 21729 hours (905 days + 9 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 41 00 00 00 00 00 Error: UNC at LBA = 0x00000000 = 0
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
60 08 c0 78 60 43 40 40 2d+02:29:23.440 READ FPDMA QUEUED
60 10 b8 20 60 43 40 40 2d+02:29:23.440 READ FPDMA QUEUED
60 08 b0 10 60 43 40 40 2d+02:29:23.440 READ FPDMA QUEUED
60 08 48 e0 96 0d 40 40 2d+02:29:23.440 READ FPDMA QUEUED
47 00 01 30 08 00 a0 a0 2d+02:29:23.440 READ LOG DMA EXT
Error 187 occurred at disk power-on lifetime: 21729 hours (905 days + 9 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 41 00 00 00 00 00 Error: UNC at LBA = 0x00000000 = 0
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
60 08 08 e0 96 0d 40 40 2d+02:29:23.400 READ FPDMA QUEUED
60 08 00 d8 96 0d 40 40 2d+02:29:23.400 READ FPDMA QUEUED
60 08 f0 d0 96 0d 40 40 2d+02:29:23.400 READ FPDMA QUEUED
60 08 e8 c8 96 0d 40 40 2d+02:29:23.400 READ FPDMA QUEUED
60 08 e0 c0 96 0d 40 40 2d+02:29:23.400 READ FPDMA QUEUED
Error 186 occurred at disk power-on lifetime: 21729 hours (905 days + 9 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 41 00 00 00 00 00 Error: UNC at LBA = 0x00000000 = 0
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
60 08 c0 38 8b 0d 40 40 2d+02:29:23.340 READ FPDMA QUEUED
47 00 01 30 08 00 a0 a0 2d+02:29:23.340 READ LOG DMA EXT
ef 10 02 00 00 00 a0 a0 2d+02:29:23.340 SET FEATURES [Enable SATA feature]
27 00 00 00 00 00 e0 e0 2d+02:29:23.340 READ NATIVE MAX ADDRESS EXT [OBS-ACS-3]
ec 00 00 00 00 00 a0 a0 2d+02:29:23.340 IDENTIFY DEVICE
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed: read failure 90% 21842 234869464
# 2 Extended offline Completed: read failure 90% 21842 162334216
# 3 Extended offline Completed: read failure 90% 21842 45290872
# 4 Extended offline Completed: read failure 90% 21745 45291120
# 5 Short offline Completed without error 00% 21727 -
# 6 Short offline Completed without error 00% 0 -
Selective Self-tests/Logging not supported
I should say that the disk is fine, but i'm far from completely understand the tool so i'm not really sure. For example i run the extended test three time with the following result
# 1 Extended offline Completed: read failure 90% 21842 234869464
# 2 Extended offline Completed: read failure 90% 21842 162334216
# 3 Extended offline Completed: read failure 90% 21842 45290872
And i don't understand if the read failure are related because historically happened read failure. The Extended test should also run for 40 min but it finished max after one or two minute.
In addition the error below that still appear in the report error like this
Error 190 occurred at disk power-on lifetime: 21729 hours (905 days + 9 hours)
When the command that caused the error occurred, the device was active or idle.
hat i suppose are error happened and registered when the sata cable was badly connetcted...but also in this case i'm not sure...
I'm really confused.
Any advice about tools to check the Health of SSD?
