Bonjour à tous,
Je viens de remarquer que mon disque optique branché en SATA ne parvenait plus à être monté par mon système (16.04.4 LTS). Ce matin, je l'utilisais. Maintenant, il semble ne plus exister.
Pour info, je l'utilise en soutien à mon SSD, le système n'y est pas installé, mais j'y stocke tous mes documents (!).
Les symptômes :
- Quand je lance Gparted un message d'erreur d'entrée-sortie apparaît.
- L’utilitaire Disques reconnaît la présence du disque, mais ne trouve aucune partition.
- La commande
mount /dev/sdb1 donne « mount: /dev/sdb1: Aucun fichier ou dossier de ce type »
- La commande
blkid ne voit aucune partition sur /dev/sdb
Je ne sais pas du tout comment réagir, et dans quel ordre faire les choses. Mes objectifs :
→ 1. L'urgence est bien sûr de récupérer mes données ;
→ 2. Déterminer si la panne est bénigne, ou suffisamment sérieuse pour devoir changer le disque.
Voici pour commencer ce que me donne SMARTMONTOOLS :
jonathan@Sacapuces:~$ sudo smartctl -s on -a /dev/sdb
[sudo] Mot de passe de jonathan :
smartctl 6.5 2016-01-24 r4214 [x86_64-linux-4.13.0-45-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Western Digital Caviar Green
Device Model: WDC WD5000AACS-00G8B0
Serial Number: WD-WCAUF0845145
LU WWN Device Id: 5 0014ee 201e0e3a2
Firmware Version: 05.04C05
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: Mon Jul 2 10:10:01 2018 CEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF ENABLE/DISABLE COMMANDS SECTION ===
SMART 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: (14760) 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: ( 172) 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 - 3
3 Spin_Up_Time 0x0027 235 134 021 Pre-fail Always - 1241
4 Start_Stop_Count 0x0032 098 098 000 Old_age Always - 2670
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
7 Seek_Error_Rate 0x002e 200 200 051 Old_age Always - 0
9 Power_On_Hours 0x0032 046 046 000 Old_age Always - 40091
10 Spin_Retry_Count 0x0032 100 100 051 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 100 100 051 Old_age Always - 0
12 Power_Cycle_Count 0x0032 098 098 000 Old_age Always - 2666
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 741
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 2668
194 Temperature_Celsius 0x0022 109 092 000 Old_age Always - 38
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 4
198 Offline_Uncorrectable 0x0030 200 200 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0008 200 200 051 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 Conveyance offline Completed without error 00% 22738 -
# 2 Short offline Completed: read failure 50% 22738 2050
# 3 Short offline Completed: read failure 50% 22738 2050
# 4 Short offline Aborted by host 90% 22738 -
# 5 Conveyance offline Completed: read failure 40% 17954 383166
# 6 Extended offline Aborted by host 90% 17954 -
# 7 Short offline Completed without error 00% 17954 -
# 8 Conveyance offline Completed: read failure 40% 17951 383166
# 9 Short offline Completed without error 00% 17951 -
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.
Avec
fdisk -lu, on voit par contre que ma partition /dev/sdb1 existe toujours :
jonathan@Sacapuces:~$ sudo fdisk -lu
Disque /dev/sda : 111,8 GiB, 120034123776 octets, 234441648 secteurs
Unités : sectors of 1 * 512 = 512 octets
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x000bae36
Périphérique Amorçage Start Fin Secteurs Size Id Type
/dev/sda1 * 2048 30722047 30720000 14,7G 83 Linux
/dev/sda2 217917438 234440703 16523266 7,9G 5 Étendue
/dev/sda3 30722048 217915391 187193344 89,3G 83 Linux
/dev/sda5 217917440 234440703 16523264 7,9G 82 partition d'échange Linux / Solaris
Partition table entries are not in disk order.
Disque /dev/zram0 : 981,9 MiB, 1029582848 octets, 251363 secteurs
Unités : sectors of 1 * 4096 = 4096 octets
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disque /dev/zram1 : 981,9 MiB, 1029582848 octets, 251363 secteurs
Unités : sectors of 1 * 4096 = 4096 octets
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disque /dev/zram2 : 981,9 MiB, 1029582848 octets, 251363 secteurs
Unités : sectors of 1 * 4096 = 4096 octets
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disque /dev/zram3 : 981,9 MiB, 1029582848 octets, 251363 secteurs
Unités : sectors of 1 * 4096 = 4096 octets
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disque /dev/sdb : 465,8 GiB, 500107862016 octets, 976773168 secteurs
Unités : sectors of 1 * 512 = 512 octets
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x00000000
Périphérique Amorçage Start Fin Secteurs Size Id Type
/dev/sdb1 63 976773167 976773105 465,8G 83 Linux
Que se passe-t-il ? Dois-je tenter une reconstruction de la table de partition ?
Merci d'avance pour votre aide ! 🙂