Bonjour,

Un proche m'a signalé des freezes énorme sur son PC. J'ai fais quelques tests sur le disque dur et j'aimerais avoir votre avis sur son état de santé et si d'après vous, le disque dur serait bien l'origine des gros lags malgré son vieux age (3,8 ans d'activité).
J'aimerais aussi savoir si vous avez des astuces pour la récupération des données à l'aide de `dd` sans que le disque ne lâche durant le transfert ?

J'ai fais un test SMART + des tests en lecture et écriture qui sont plutôt faibles.
Le test SMART :
smartctl 6.4 2015-06-04 r4109 [x86_64-linux-4.3.3-3-ARCH] (local build)
Copyright (C) 2002-15, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Caviar Green
Device Model:     WDC WD5000AAVS-00ZTB0
Serial Number:    WD-WCASU0133807
LU WWN Device Id: 5 0014ee 25617a806
Firmware Version: 01.01B01
User Capacity:    500,107,862,016 bytes [500 GB]
Sector Size:      512 bytes logical/physical
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ATA8-ACS (minor revision not indicated)
SATA Version is:  SATA 2.5, 3.0 Gb/s
Local Time is:    Thu Mar 17 16:10:33 2016 UTC
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:  (0x84)	Offline data collection activity
					was suspended by an interrupting command from host.
					Auto Offline Data Collection: Enabled.
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: 		(13980) 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: 	 (   2) minutes.
Extended self-test routine
recommended polling time: 	 ( 163) minutes.
Conveyance self-test routine
recommended polling time: 	 (   5) minutes.
SCT capabilities: 	       (0x303f)	SCT Status supported.
					SCT Error Recovery Control supported.
					SCT Feature Control supported.
					SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
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   200   200   051    Pre-fail  Always       -       27
  3 Spin_Up_Time            0x0003   165   158   021    Pre-fail  Always       -       4733
  4 Start_Stop_Count        0x0032   091   091   000    Old_age   Always       -       9146
  5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000e   200   200   051    Old_age   Always       -       0
  9 Power_On_Hours          0x0032   054   054   000    Old_age   Always       -       34052
 10 Spin_Retry_Count        0x0012   100   100   051    Old_age   Always       -       0
 11 Calibration_Retry_Count 0x0012   100   100   051    Old_age   Always       -       0
 12 Power_Cycle_Count       0x0032   098   098   000    Old_age   Always       -       2237
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       559
193 Load_Cycle_Count        0x0032   142   142   000    Old_age   Always       -       176557
194 Temperature_Celsius     0x0022   118   095   000    Old_age   Always       -       29
196 Reallocated_Event_Count 0x0032   200   200   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0012   200   200   000    Old_age   Always       -       1
198 Offline_Uncorrectable   0x0010   200   200   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       1
200 Multi_Zone_Error_Rate   0x0008   200   200   051    Old_age   Offline      -       1

SMART Error Log Version: 1
ATA Error Count: 2072 (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 2072 occurred at disk power-on lifetime: 34049 hours (1418 days + 17 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 d9 47 3b 40  Error: WP at LBA = 0x003b47d9 = 3885017

  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 08 28 70 50 04 00 00      00:52:55.793  WRITE FPDMA QUEUED
  61 08 10 70 8f 65 00 00      00:52:55.792  WRITE FPDMA QUEUED
  61 08 10 98 b3 5e 00 00      00:52:55.792  WRITE FPDMA QUEUED
  60 10 98 48 a1 51 0e 00      00:52:55.791  READ FPDMA QUEUED
  61 01 48 a0 8d 4a 00 00      00:52:55.791  WRITE FPDMA QUEUED

Error 2071 occurred at disk power-on lifetime: 34049 hours (1418 days + 17 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 d9 47 3b 40  Error: WP at LBA = 0x003b47d9 = 3885017

  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 08 50 e8 b3 62 00 00      00:52:51.522  WRITE FPDMA QUEUED
  61 08 48 90 b3 5e 00 00      00:52:51.522  WRITE FPDMA QUEUED
  61 08 40 a8 b3 62 00 00      00:52:51.522  WRITE FPDMA QUEUED
  61 08 38 a0 9f 5f 00 00      00:52:51.522  WRITE FPDMA QUEUED
  61 08 40 90 b3 62 00 00      00:52:51.522  WRITE FPDMA QUEUED

Error 2070 occurred at disk power-on lifetime: 34049 hours (1418 days + 17 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 d9 47 3b 40  Error: WP at LBA = 0x003b47d9 = 3885017

  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 08 e8 f8 03 63 00 00      00:52:47.311  WRITE FPDMA QUEUED
  61 08 e0 98 b3 5e 00 00      00:52:47.311  WRITE FPDMA QUEUED
  61 08 d8 88 b7 62 00 00      00:52:47.288  WRITE FPDMA QUEUED
  61 08 d0 80 b3 5e 00 00      00:52:47.288  WRITE FPDMA QUEUED
  61 08 f0 a8 44 19 00 00      00:52:47.288  WRITE FPDMA QUEUED

Error 2069 occurred at disk power-on lifetime: 34049 hours (1418 days + 17 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 d9 47 3b 40  Error: WP at LBA = 0x003b47d9 = 3885017

  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 08 28 70 50 04 00 00      00:52:43.105  WRITE FPDMA QUEUED
  61 08 28 70 8f 65 00 00      00:52:43.104  WRITE FPDMA QUEUED
  61 08 30 98 b3 5e 00 00      00:52:43.104  WRITE FPDMA QUEUED
  61 08 28 50 70 04 00 00      00:52:43.103  WRITE FPDMA QUEUED
  60 08 40 d8 47 3b 02 00      00:52:43.103  READ FPDMA QUEUED

Error 2068 occurred at disk power-on lifetime: 34049 hours (1418 days + 17 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 d9 47 3b 40  Error: WP at LBA = 0x003b47d9 = 3885017

  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 08 20 88 b3 5e 00 00      00:52:38.899  WRITE FPDMA QUEUED
  61 08 30 90 b3 5e 00 00      00:52:38.899  WRITE FPDMA QUEUED
  61 08 20 f8 46 2f 12 00      00:52:38.899  WRITE FPDMA QUEUED
  60 08 80 90 a1 51 0e 00      00:52:38.899  READ FPDMA QUEUED
  61 10 30 80 9f 5f 00 00      00:52:38.899  WRITE 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       90%     34050         37439449
# 2  Extended offline    Completed: read failure       90%     34050         37439449
# 3  Short offline       Completed: read failure       90%     34050         37439449
# 4  Short offline       Completed: read failure       90%     34050         37439449
# 5  Short offline       Completed: read failure       90%     34050         37439449
# 6  Short offline       Completed without error       00%     26566         -
# 7  Short offline       Completed without error       00%     22862         -
# 8  Short offline       Completed without error       00%     22762         -

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.
Merci
Ton disque est défaillant -> ATA Error Count: 2072
Ton spin_un_time est élevé et tu as un secteur instable.

Il a bien vécu avec ses 1418 jours soit presque allumé tous le temps sur 3.8 ans, c'est dommage d'avoir reboot le pc autant de fois pour le laisser si longtemps allumé.
Merci pour ton avis.
Le Start_Stop_Count me paraît élevé en effet, n'est-ce pas parce que le disque dur se met en veille ?
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