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Targol

Taux d'écriture sur HDD qui chute...

Bonjour à tous,

lors de mes recherches pour déterminer les raisons des plantages aléatoires de mon système, j'ai testé mes disques durs et j'ai constaté une chute assez importante de la vitesse d'accès au disque dur.
Voici une capture du test sur 10000 échantillons :

Comme vous pouvez le constater, la vitesse passe de +/-180Mo/s au départ à +/-96Mo/s après 10000 échantillons.
A priori, je n'ai pas eu d'alertes SMART.
Est-ce normal ou mon disque est en train de rendre l'âme ?

Merci d'avance pour tout éclaircissement.

Dernière modification par cqfd93 (Le 22/06/2020, à 14:03)

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Ubuntu, c'est bon, mangez-en !!

Targol

Re : Taux d'écriture sur HDD qui chute...

Pour information, voici le résultat de la commande "sudo smartctl -a /dev/sda"

smartctl 7.1 2019-12-30 r5022 [x86_64-linux-5.4.0-37-generic] (local build)
Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Seagate Barracuda 7200.14 (AF)
Device Model:     ST1000DM003-1CH162
Serial Number:    Z1DB2NGM
LU WWN Device Id: 5 000c50 066a82347
Firmware Version: CC47
User Capacity:    1000204886016 bytes [1,00 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:    Mon Jun 22 13:32:55 2020 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: 		(  592) 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: 	 ( 109) minutes.
Conveyance self-test routine
recommended polling time: 	 (   2) minutes.
SCT capabilities: 	       (0x3085)	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   115   099   006    Pre-fail  Always       -       98352816
  3 Spin_Up_Time            0x0003   097   097   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   098   098   020    Old_age   Always       -       2312
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   081   060   030    Pre-fail  Always       -       140294827
  9 Power_On_Hours          0x0032   072   072   000    Old_age   Always       -       25169
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   098   098   020    Old_age   Always       -       2281
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   100   100   000    Old_age   Always       -       0
188 Command_Timeout         0x0032   100   099   000    Old_age   Always       -       0 0 2
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   067   055   045    Old_age   Always       -       33 (Min/Max 22/34)
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       -       78
193 Load_Cycle_Count        0x0032   099   099   000    Old_age   Always       -       2481
194 Temperature_Celsius     0x0022   033   045   000    Old_age   Always       -       33 (0 11 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   200   200   000    Old_age   Always       -       0
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       25148h+16m+38.396s
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       19084898072
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       24744839735

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       Aborted by host               90%     25143         -

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.

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Ubuntu, c'est bon, mangez-en !!

Targol

Re : Taux d'écriture sur HDD qui chute...

Bonjour,
Personne n'a la moindre idée du caractère normal ou pas de ces courbes ?

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Ubuntu, c'est bon, mangez-en !!