Newsgroup: it.comp.hardware
Titolo: L'hard disk mi sta lasciando?

Ciao a tutti, è da qualche giorno che noto il pc parecchio più lento, 
specialmente nell'avvio dei programmi, e la spia dell'hard disk resta 
spesso accesa per diverso tempo.
Ho effettuato il test smart completo e il programma (gestore dischi di 
Linux) mi dice che il "disco è OK" ma "Autovalutazione: Soglia non 
superata" e tutti i singoli elementi hanno nella colonna valutazione un 
"OK"; sinceramente non so come interpretarli, quindi li allego in calce 
al post.
Stamattina il sistema è andato in crash e il kernel mi ha riferito 
errori riferiti alla partizione di sistema, sdb2 e quindi sto copiando i 
dati (sdb5) su un altro hard disk. Mi sto accorgendo ora con dmesg che 
anche sdb5 sta dando errori che però evidentemente il kernel riesce a 
correggere. Ora mi chiedo, i dati SMART sono affidabili? Come faccio a 
capire se sintomi del genere sono dovuti a problemi sulla partizione o 
danni al disco?
Anche perchè, ammesso che butti il Western Digital, a questo punto non 
mi sento nemmeno tanto sicuro dell'altro disco, un Seagate da 500GB, 
meno sfruttato del WD: 6 mesi e 2 giorni secondo smart contro 1 anno, 
sei mesi e 12 giorni, ma di un paio d'anni più vecchio.
Ci sono dei metodi affidabili per fare diagnosi sugli hard disk?
Grazie.
 
 
 
=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Caviar Green
Device Model:     WDC WD5000AADS-00S9B0
Serial Number:    WD-WCAV93214107
LU WWN Device Id: 5 0014ee 1ad31639b
Firmware Version: 01.00A01
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 2.6, 3.0 Gb/s
Local Time is:    Thu Jun  1 23:28:47 2017 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:  (0x84)	Offline data collection activity
					was suspended by an interrupting command from host.
					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: 		(10200) 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: 	 ( 120) 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     0x002f   200   200   051    Pre-fail 
Always       -       0
   3 Spin_Up_Time            0x0027   146   143   021    Pre-fail 
Always       -       3675
   4 Start_Stop_Count        0x0032   098   098   000    Old_age 
Always       -       2053
   5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail 
Always       -       0
   7 Seek_Error_Rate         0x002e   200   200   000    Old_age 
Always       -       0
   9 Power_On_Hours          0x0032   082   082   000    Old_age 
Always       -       13437
  10 Spin_Retry_Count        0x0032   100   100   000    Old_age 
Always       -       0
  11 Calibration_Retry_Count 0x0032   100   100   000    Old_age 
Always       -       0
  12 Power_Cycle_Count       0x0032   098   098   000    Old_age 
Always       -       2044
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always 
       -       670
193 Load_Cycle_Count        0x0032   001   001   000    Old_age   Always 
       -       1267453
194 Temperature_Celsius     0x0022   104   097   000    Old_age   Always 
       -       39
196 Reallocated_Event_Count 0x0032   200   200   000    Old_age   Always 
       -       0
197 Current_Pending_Sector  0x0032   200   200   000    Old_age   Always 
       -       0
198 Offline_Uncorrectable   0x0030   200   200   000    Old_age 
Offline      -       0
199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always 
       -       9994
200 Multi_Zone_Error_Rate   0x0008   200   200   000    Old_age 
Offline      -       0
 
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  Extended offline    Completed without error       00%     13330 
     -
# 2  Short offline       Completed without error       00%     11827 
     -
# 3  Short offline       Completed without error       00%      3348 
     -
 
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 questo punto vi mando anche i dati dell'altro disco:
=== START OF INFORMATION SECTION ===
Model Family:     Seagate Barracuda 7200.11
Device Model:     ST3500320AS
Serial Number:    6QM0KXZ1
LU WWN Device Id: 5 000c50 009c95994
Firmware Version: SD1A
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 Jun  1 23:40:22 2017 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: 		(  642) 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: 	 ( 119) minutes.
Conveyance self-test routine
recommended polling time: 	 (   2) minutes.
SCT capabilities: 	       (0x103b)	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   111   099   006    Pre-fail 
Always       -       31522665
   3 Spin_Up_Time            0x0003   095   094   000    Pre-fail 
Always       -       0
   4 Start_Stop_Count        0x0032   099   099   020    Old_age 
Always       -       1747
   5 Reallocated_Sector_Ct   0x0033   100   100   036    Pre-fail 
Always       -       0
   7 Seek_Error_Rate         0x000f   075   060   030    Pre-fail 
Always       -       
8662159527
 
   9 Power_On_Hours          0x0032   095   095   000    Old_age 
Always       -       4439
  10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail 
Always       -       8
  12 Power_Cycle_Count       0x0032   099   099   020    Old_age 
Always       -       1741
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   098   000    Old_age   Always 
       -       541174136969
189 High_Fly_Writes         0x003a   098   098   000    Old_age   Always 
       -       2
190 Airflow_Temperature_Cel 0x0022   059   048   045    Old_age   Always 
       -       41 (Min/Max 30/42)
194 Temperature_Celsius     0x0022   041   052   000    Old_age   Always 
       -       41 (0 16 0 0 0)
195 Hardware_ECC_Recovered  0x001a   051   029   000    Old_age   Always 
       -       31522665
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
 
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%      4329 


        -       9994
 
Puo' essere banalmente un problema di connessione, prova a cambiare il 
cavo SATA con uno il piu' corto possibile e che non faccia giri strani.
Il piu' delle volte si risolve cosi'.
 
angelo