Voici smartctl après avoir lancé deux tests long (plusieurs heures chacun)
Il y a donc bien des erreurs de lecture dans les 20% à la fin du disque :
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed: read failure 20% 40054 844622245
# 2 Extended offline Completed: read failure 20% 40048 844630767
# 3 Extended offline Completed without error 00% 2 -
# 4 Short offline Completed without error 00% 0 -
Par contre cela n'a pas incrèmenté les erreurs détaillées, qui sont toujours à "Error 95 occurred at disk power-on lifetime: 38179 hours (1590 days + 19 hours)"
# smartctl -a /dev/sda
smartctl 6.4 2014-10-07 r4002 [x86_64-linux-3.19.0-22-generic] (local build)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Seagate Barracuda ES.2
Device Model: ST3500320NS
Serial Number: 9QMCNF1W
LU WWN Device Id: 5 000c50 01fea7d58
Add. Product Id: DELL(tm)
Firmware Version: MA0D
User Capacity: 500 107 862 016 bytes [500 GB]
Sector Size: 512 bytes logical/physical
Rotation Rate: 7200 rpm
Device is: In smartctl database [for details use: -P show]
ATA Version is: ATA8-ACS T13/1699-D revision 4
SATA Version is: SATA 2.6, 3.0 Gb/s
Local Time is: Thu Jul 23 10:26:13 2015 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: ( 114) The previous self-test completed having
the read element of the test failed.
Total time to complete Offline
data collection: ( 625) 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: ( 110) minutes.
Conveyance self-test routine
recommended polling time: ( 2) minutes.
SCT capabilities: (0x103d) 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 074 054 044 Pre-fail Always - 239281957
3 Spin_Up_Time 0x0003 099 099 000 Pre-fail Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 40
5 Reallocated_Sector_Ct 0x0033 091 091 036 Pre-fail Always - 188
7 Seek_Error_Rate 0x000f 080 060 030 Pre-fail Always - 22023540966
9 Power_On_Hours 0x0032 055 055 000 Old_age Always - 40064
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 037 020 Old_age Always - 40
184 End-to-End_Error 0x0032 100 100 099 Old_age Always - 0
187 Reported_Uncorrect 0x0032 080 080 000 Old_age Always - 20
188 Command_Timeout 0x0032 100 099 000 Old_age Always - 65
189 High_Fly_Writes 0x003a 100 100 000 Old_age Always - 0
190 Airflow_Temperature_Cel 0x0022 071 060 045 Old_age Always - 29 (Min/Max 26/35)
194 Temperature_Celsius 0x0022 029 040 000 Old_age Always - 29 (0 18 0 0 0)
195 Hardware_ECC_Recovered 0x001a 040 029 000 Old_age Always - 239281957
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 540
198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 540
199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always - 0
SMART Error Log Version: 1
ATA Error Count: 95 (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 95 occurred at disk power-on lifetime: 38179 hours (1590 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
-- -- -- -- -- -- -- -- ---------------- --------------------
60 00 00 ff ff ff 4f 00 8d+07:34:07.080 READ FPDMA QUEUED
60 00 00 ff ff ff 4f 00 8d+07:34:07.079 READ FPDMA QUEUED
60 00 00 ff ff ff 4f 00 8d+07:34:06.974 READ FPDMA QUEUED
60 00 00 ff ff ff 4f 00 8d+07:34:06.973 READ FPDMA QUEUED
60 00 00 ff ff ff 4f 00 8d+07:34:06.970 READ FPDMA QUEUED
Error 94 occurred at disk power-on lifetime: 38156 hours (1589 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
-- -- -- -- -- -- --
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 00 ff ff ff 4f 00 7d+09:05:32.647 READ FPDMA QUEUED
ea 00 00 00 00 00 a0 00 7d+09:05:32.635 FLUSH CACHE EXT
60 00 00 ff ff ff 4f 00 7d+09:05:32.615 READ FPDMA QUEUED
61 00 08 ff ff ff 4f 00 7d+09:05:32.615 WRITE FPDMA QUEUED
ea 00 00 00 00 00 a0 00 7d+09:05:32.542 FLUSH CACHE EXT
Error 93 occurred at disk power-on lifetime: 38156 hours (1589 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
-- -- -- -- -- -- --
40 51 00 ff ff ff 0f Error: WP 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
-- -- -- -- -- -- -- -- ---------------- --------------------
61 00 e0 38 6e c5 41 00 7d+08:45:28.971 WRITE FPDMA QUEUED
60 00 08 ff ff ff 4f 00 7d+08:45:28.968 READ FPDMA QUEUED
61 00 68 ff ff ff 4f 00 7d+08:45:28.968 WRITE FPDMA QUEUED
27 00 00 00 00 00 e0 00 7d+08:45:28.937 READ NATIVE MAX ADDRESS EXT [OBS-ACS-3]
ec 00 00 00 00 00 a0 00 7d+08:45:28.935 IDENTIFY DEVICE
Error 92 occurred at disk power-on lifetime: 38156 hours (1589 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
-- -- -- -- -- -- --
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 08 ff ff ff 4f 00 7d+08:45:25.290 READ FPDMA QUEUED
60 00 08 ff ff ff 4f 00 7d+08:45:25.285 READ FPDMA QUEUED
61 00 20 40 15 45 43 00 7d+08:45:25.285 WRITE FPDMA QUEUED
61 00 28 80 11 45 43 00 7d+08:45:25.284 WRITE FPDMA QUEUED
61 00 20 60 ff 44 43 00 7d+08:45:25.284 WRITE FPDMA QUEUED
Error 91 occurred at disk power-on lifetime: 38156 hours (1589 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
-- -- -- -- -- -- --
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 00 ff ff ff 4f 00 7d+08:45:20.387 READ FPDMA QUEUED
60 00 00 ff ff ff 4f 00 7d+08:45:20.385 READ FPDMA QUEUED
60 00 00 ff ff ff 4f 00 7d+08:45:20.383 READ FPDMA QUEUED
ea 00 00 00 00 00 a0 00 7d+08:45:20.368 FLUSH CACHE EXT
60 00 00 ff ff ff 4f 00 7d+08:45:20.367 READ FPDMA QUEUED
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 20% 40054 844622245
# 2 Extended offline Completed: read failure 20% 40048 844630767
# 3 Extended offline Completed without error 00% 2 -
# 4 Short 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
A noter que avant de lancer les tests, j'ai récupéré avec sucés toutes les données du disque.
Pour 90% des données, j'avais un checksum (SHA256) et j'ai été étonné de n'avoir aucune erreur de checksum.