Vérifier l’état d’un disque dur avec smartmontools

J’ai rencontré quelques soucis avec un disque Seagate IronWolf placé dans mon serveur Dell PowerEdge T310 depuis à peine quelques mois dans un RAID5 comme je l’évoque dans ce post. Il est sans cesse rejeté par le RAID que je dois reconstruire à chaque fois, et ça prend des heures. Pourtant je n’ai pas d’erreur de disques SMART flagrantes. Pour mémoire SMART est une technologie qui permet de monitorer les disques. Dans un récent post, j’avais expliqué comment utiliser smartmontools sous linux pour vérifier les disques avant de lancer une sauvegarde, dans ce post je vais détailler comment on peut vérifier l’état de santé avec cet outil dont l’équivalent pourrait être Seatools de Seagate sous windows.

Tout d’abord pour vérifier l’état du disque on tapera la commande suivante qui va lancer un test court

 smartctl -t short -d megaraid,7 -a /dev/sdb
 

L’option -d correspond au device pour ma part je pointe sur le disque de mon RAID à la septième position qui correspond à mon disque naze. Pour un disque SATA normalement le -d est inutile, en revanche pour un disque branché en USB (via un adaptateur ou une boîtier), vous avez le choix de mettre comme variable derrière -d sat, usbsunplus, usbcypress et usbjmicron. Dans la pratique, il faudra taper lsusb, vous allez retrouver votre disque dur branché enUSB, exemple avec un adaptateur SATA/USB

Bus 002 Device 010: ID 7825:a2a4 ULT-Best Best USB Device

Maintenant il faut se rendre sur cette page et voir à quel device correspond votre adaptateur ou boîtier, attention tous les périphériques ne sont pas listés, il faudra donc faire des tests avec tous les devices énumérés plus haut, pour ma part ça était -d sat.à la fois pour l’adaptateur SATA/USB et à la fois pour le boîtier USB. Avantage à linux car sous windows avec Seatools la plupart du temps il ne reconnait pas les adaptateurs et boîtiers USB.

Revenons au résultat du test court, cela donne un résultat comme cela

smartctl 7.0 2018-12-30 r4883 [x86_64-linux-5.6.6-server-1.mga7] (local build)
Copyright (C) 2002-18, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Seagate IronWolf
Device Model:     ST3000VN007-2AH16M
Serial Number:    ZGY6KHBC
LU WWN Device Id: 5 000c50 0c47c70df
Firmware Version: SC60
User Capacity:    3 000 592 982 016 bytes [3,00 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:    Sat Nov 21 09:29:23 2020 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART Status not supported: ATA return descriptor not supported by controller firmware
SMART overall-health self-assessment test result: PASSED
Warning: This result is based on an Attribute check.

General SMART Values:
Offline data collection status:  (0x00)	Offline data collection activity
					was never started.
					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: 		(  601) seconds.
Offline data collection
capabilities: 			 (0x73) SMART execute Offline immediate.
					Auto Offline data collection on/off support.
					Suspend Offline collection upon new
					command.
					No 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: 	 ( 525) 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   079   064   044    Pre-fail  Always       -       78583125
  3 Spin_Up_Time            0x0003   095   095   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       8
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   085   060   045    Pre-fail  Always       -       345223728
  9 Power_On_Hours          0x0032   094   094   000    Old_age   Always       -       6111 (85 55 0)
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       8
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
188 Command_Timeout         0x0032   100   099   000    Old_age   Always       -       4295032835
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   082   073   040    Old_age   Always       -       18 (Min/Max 15/25)
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       -       0
193 Load_Cycle_Count        0x0032   075   075   000    Old_age   Always       -       50402
194 Temperature_Celsius     0x0022   018   040   000    Old_age   Always       -       18 (0 14 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   193   193   000    Old_age   Always       -       25
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       1894 (198 60 0)
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       17183414698
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       6251948358

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%      6102         -
# 2  Short offline       Completed without error       00%      6078         -
# 3  Short offline       Completed without error       00%      6054         -
# 4  Short offline       Completed without error       00%      6030         -
# 5  Short offline       Completed without error       00%      6006         -
# 6  Extended offline    Completed without error       00%      5990         -
# 7  Short offline       Completed without error       00%      5982         -
# 8  Short offline       Completed without error       00%      5958         -
# 9  Short offline       Completed without error       00%      5934         -
#10  Short offline       Completed without error       00%      5910         -
#11  Short offline       Completed without error       00%      5886         -
#12  Short offline       Completed without error       00%      5862         -
#13  Short offline       Completed without error       00%      5838         -

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.

=== START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===
Sending command: "Execute SMART Short self-test routine immediately in off-line mode".
Drive command "Execute SMART Short self-test routine immediately in off-line mode" successful.
Testing has begun.
Please wait 1 minutes for test to complete.
Test will complete after Sat Nov 21 09:30:23 2020

Use smartctl -X to abort test.

On attend une petite minute et on retape la commande ci-dessous pour avoir le résultat final du test

smartctl -d megaraid,7 -a /dev/sdb

Si ce n’est pas flagrant vous pouvez tenter un test intensif en tapant

smartctl -t long -d megaraid,7 -a /dev/sdb

Suivant la taille du disque cela peut prendre plusieurs heures, voilà le résultat

smartctl 7.0 2018-12-30 r4883 [x86_64-linux-5.6.6-server-1.mga7] (local build)
Copyright (C) 2002-18, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Seagate IronWolf
Device Model:     ST3000VN007-2AH16M
Serial Number:    ZGY6KHBC
LU WWN Device Id: 5 000c50 0c47c70df
Firmware Version: SC60
User Capacity:    3 000 592 982 016 bytes [3,00 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:    Sat Nov 21 09:36:58 2020 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART Status not supported: ATA return descriptor not supported by controller firmware
SMART overall-health self-assessment test result: PASSED
Warning: This result is based on an Attribute check.

General SMART Values:
Offline data collection status:  (0x00)	Offline data collection activity
					was never started.
					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: 		(  601) seconds.
Offline data collection
capabilities: 			 (0x73) SMART execute Offline immediate.
					Auto Offline data collection on/off support.
					Suspend Offline collection upon new
					command.
					No 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: 	 ( 525) 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   079   064   044    Pre-fail  Always       -       78583125
  3 Spin_Up_Time            0x0003   095   095   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       8
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   085   060   045    Pre-fail  Always       -       345234219
  9 Power_On_Hours          0x0032   094   094   000    Old_age   Always       -       6111 (71 225 0)
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       8
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
188 Command_Timeout         0x0032   100   099   000    Old_age   Always       -       4295032835
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   082   073   040    Old_age   Always       -       18 (Min/Max 15/25)
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       -       0
193 Load_Cycle_Count        0x0032   075   075   000    Old_age   Always       -       50405
194 Temperature_Celsius     0x0022   018   040   000    Old_age   Always       -       18 (0 14 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   193   193   000    Old_age   Always       -       25
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       1894 (157 172 0)
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       17183414698
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       6251948358

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%      6111         -
# 2  Short offline       Completed without error       00%      6102         -
# 3  Short offline       Completed without error       00%      6078         -
# 4  Short offline       Completed without error       00%      6054         -
# 5  Short offline       Completed without error       00%      6030         -
# 6  Short offline       Completed without error       00%      6006         -
# 7  Extended offline    Completed without error       00%      5990         -
# 8  Short offline       Completed without error       00%      5982         -
# 9  Short offline       Completed without error       00%      5958         -
#10  Short offline       Completed without error       00%      5934         -
#11  Short offline       Completed without error       00%      5910         -
#12  Short offline       Completed without error       00%      5886         -
#13  Short offline       Completed without error       00%      5862         -
#14  Short offline       Completed without error       00%      5838         -

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.

=== START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===
Sending command: "Execute SMART Extended self-test routine immediately in off-line mode".
Drive command "Execute SMART Extended self-test routine immediately in off-line mode" successful.
Testing has begun.
Please wait 525 minutes for test to complete.
Test will complete after Sat Nov 21 18:21:59 2020

Use smartctl -X to abort test.

En gros cela va durer 525 minutes (soit presque 9 heures pour un disque de 3To !!). Pour voir l’état d’avancement de la commande il faudra taper régulièrement

smartctl -a -d megaraid,7 -a /dev/sdb

on va voir apparaître (extrait)

Self-test execution status:      ( 246)	Self-test routine in progress...
					60% of test remaining.

ou bien encore dans la même commande

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Extended offline    Self-test routine in progress 90%      6111         -

Dans le fichier journal système, on voit également des indications d’avancement

nov. 21 14:23:04 mana.kervao.fr smartd[6132]: Device: /dev/bus/0 [megaraid_disk_07] [SAT], self-test in progress, 20% remaining

Dans le cas présent malgré le fait que le disque soit rejeté par le RAID, il n’y a pas d’erreurs flagrantes et c’est bien ennuyeux pour le retour en garantie.

Maintenant voilà ce que ça donne avec un disque qui a plein d’erreurs, c’est un ancien disque qui était dans mon RAID5.

smartctl 7.0 2018-12-30 r4883 [x86_64-linux-5.7.19-desktop-3.mga7] (local build)
Copyright (C) 2002-18, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Seagate Barracuda 7200.14 (AF)
Device Model:     ST2000DM001-1ER164
Serial Number:    Z4Z2CEHK
LU WWN Device Id: 5 000c50 07ac2d868
Firmware Version: CC25
User Capacity:    2 000 398 934 016 bytes [2,00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ACS-2, ACS-3 T13/2161-D revision 3b
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Sun Nov 22 19:08:14 2020 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART Status not supported: Incomplete response, ATA output registers missing
SMART overall-health self-assessment test result: PASSED
Warning: This result is based on an Attribute check.

General SMART Values:
Offline data collection status:  (0x00)	Offline data collection activity
					was never started.
					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: 		(   80) seconds.
Offline data collection
capabilities: 			 (0x73) SMART execute Offline immediate.
					Auto Offline data collection on/off support.
					Suspend Offline collection upon new
					command.
					No 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: 	 ( 208) minutes.
Conveyance self-test routine
recommended polling time: 	 (   2) minutes.
SCT capabilities: 	       (0x1085)	SCT Status 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   100   094   006    Pre-fail  Always       -       138697940
  3 Spin_Up_Time            0x0003   096   096   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   065   060   030    Pre-fail  Always       -       3660043
  9 Power_On_Hours          0x0032   059   059   000    Old_age   Always       -       36617
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       69
183 Runtime_Bad_Block       0x0032   100   100   000    Old_age   Always       -       0
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   088   088   000    Old_age   Always       -       12
188 Command_Timeout         0x0032   100   100   000    Old_age   Always       -       0 0 0
189 High_Fly_Writes         0x003a   099   099   000    Old_age   Always       -       1
190 Airflow_Temperature_Cel 0x0022   080   066   045    Old_age   Always       -       20 (Min/Max 20/20)
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       -       9
193 Load_Cycle_Count        0x0032   007   007   000    Old_age   Always       -       187614
194 Temperature_Celsius     0x0022   020   040   000    Old_age   Always       -       20 (0 7 0 0 0)
197 Current_Pending_Sector  0x0012   099   099   000    Old_age   Always       -       272
198 Offline_Uncorrectable   0x0010   099   099   000    Old_age   Offline      -       272
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       0
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       20860h+08m+08.480s
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       2621623756
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       7556213911

SMART Error Log Version: 1
ATA Error Count: 12 (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 12 occurred at disk power-on lifetime: 34776 hours (1449 days + 0 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
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 6e ff ff ff 4f 00  34d+16:52:44.064  READ FPDMA QUEUED
  2f 00 01 10 00 00 00 00  34d+16:52:44.006  READ LOG EXT
  60 00 6f ff ff ff 4f 00  34d+16:52:39.564  READ FPDMA QUEUED
  2f 00 01 10 00 00 00 00  34d+16:52:39.506  READ LOG EXT
  60 00 70 ff ff ff 4f 00  34d+16:52:35.063  READ FPDMA QUEUED

Error 11 occurred at disk power-on lifetime: 34776 hours (1449 days + 0 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
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 6f ff ff ff 4f 00  34d+16:52:39.564  READ FPDMA QUEUED
  2f 00 01 10 00 00 00 00  34d+16:52:39.506  READ LOG EXT
  60 00 70 ff ff ff 4f 00  34d+16:52:35.063  READ FPDMA QUEUED
  2f 00 01 10 00 00 00 00  34d+16:52:35.005  READ LOG EXT
  60 00 71 ff ff ff 4f 00  34d+16:52:30.563  READ FPDMA QUEUED

Error 10 occurred at disk power-on lifetime: 34776 hours (1449 days + 0 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
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 70 ff ff ff 4f 00  34d+16:52:35.063  READ FPDMA QUEUED
  2f 00 01 10 00 00 00 00  34d+16:52:35.005  READ LOG EXT
  60 00 71 ff ff ff 4f 00  34d+16:52:30.563  READ FPDMA QUEUED
  2f 00 01 10 00 00 00 00  34d+16:52:30.505  READ LOG EXT
  60 00 72 ff ff ff 4f 00  34d+16:52:26.062  READ FPDMA QUEUED

Error 9 occurred at disk power-on lifetime: 34776 hours (1449 days + 0 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
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 71 ff ff ff 4f 00  34d+16:52:30.563  READ FPDMA QUEUED
  2f 00 01 10 00 00 00 00  34d+16:52:30.505  READ LOG EXT
  60 00 72 ff ff ff 4f 00  34d+16:52:26.062  READ FPDMA QUEUED
  2f 00 01 10 00 00 00 00  34d+16:52:26.005  READ LOG EXT
  60 00 73 ff ff ff 4f 00  34d+16:52:21.562  READ FPDMA QUEUED

Error 8 occurred at disk power-on lifetime: 34776 hours (1449 days + 0 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
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 72 ff ff ff 4f 00  34d+16:52:26.062  READ FPDMA QUEUED
  2f 00 01 10 00 00 00 00  34d+16:52:26.005  READ LOG EXT
  60 00 73 ff ff ff 4f 00  34d+16:52:21.562  READ FPDMA QUEUED
  2f 00 01 10 00 00 00 00  34d+16:52:21.504  READ LOG EXT
  60 00 74 ff ff ff 4f 00  34d+16:52:17.061  READ FPDMA QUEUED

SMART Self-test log structure revision number 1
No self-tests have been logged.  [To run self-tests, use: smartctl -t]

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.

Résultat des courses je me retrouve avec un RAID5 qui marche sur 3 disques, donc pas terrible et un disque que je considère comme HS, comme quoi SMART n’est pas la panacée et ne permet pas de statuer de manière fiable sur l’état d’un disque.

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