Disque dur externe USB plus monté

[Nym]

Bonjour.

J'ai un disque dur externe que mon Synology ne monte plus automatiquement. Le Syno monte bien une clef USB et le disque externe est également monté automatique sur mon PC sous Ubuntu. Donc il y a un problème avec la paire {Syno;disque externe}. Quelqu'un aurait-il une piste à explorer ?

[Nym]

Bonsoir.

Je constate un comportement très étrange. Juste après le redémarrage du disque externe la commande "fdisk -l" me donne, entre autres :

Disk /dev/sdq: 298.1 GiB, 320072933376 bytes, 625142448 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x1e47a717

Device     Boot Start       End   Sectors  Size Id Type
/dev/sdq1          63 625002047 625001985  298G 83 Linux

Ce qui correspond bien à mon disque externe.

En revanche, la même commande exécutée quelques minutes après ne fait plus apparaître ces lignes. Une explication ?

[Nym]

Bonjour.

Au cas où ça pourrait vous servir, voici la sortie de dmesg lorsque je branche le disque externe :

[79925.090833] usb 2-1: new high-speed USB device number 7 using ehci_marvell
[79925.272831] usb-storage 2-1:1.0: Quirks match for vid 152d pid 2329: 8020
[79925.280659] scsi4 : usb-storage 2-1:1.0
[79926.281646] scsi 4:0:0:0: Direct-Access     WDC WD32 00AAKS-75L9A0                 PQ: 0 ANSI: 2 CCS
[79926.292223] sd 4:0:0:0: [sdq] 625142448 512-byte logical blocks: (320 GB/298 GiB)
[79926.300425] sd 4:0:0:0: Attached scsi generic sg1 type 0
[79926.306350] sd 4:0:0:0: [sdq] Write Protect is off
[79926.311219] sd 4:0:0:0: [sdq] Mode Sense: 34 00 00 00
[79926.312735] sd 4:0:0:0: [sdq] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[79926.405907]  sdq: sdq1
[79926.411610] sd 4:0:0:0: [sdq] Attached SCSI disk
[79948.826680] usb 2-1: reset high-speed USB device number 7 using ehci_marvell
[79948.986679] usb 2-1: device descriptor read/64, error -71
[79949.256596] usb 2-1: device descriptor read/64, error -71
[79949.516544] usb 2-1: reset high-speed USB device number 7 using ehci_marvell
[79949.676603] usb 2-1: device descriptor read/64, error -71
[79949.946479] usb 2-1: device descriptor read/64, error -71
[79950.206453] usb 2-1: reset high-speed USB device number 7 using ehci_marvell
[79950.636404] usb 2-1: device not accepting address 7, error -71
[79950.786308] usb 2-1: reset high-speed USB device number 7 using ehci_marvell
[79951.216209] usb 2-1: device not accepting address 7, error -71
[79951.222130] usb 2-1: USB disconnect, device number 7
[79951.228910] sd 4:0:0:0: Device offlined - not ready after error recovery
[79951.396320] usb 2-1: new high-speed USB device number 8 using ehci_marvell
[79951.556259] usb 2-1: device descriptor read/64, error -71
[79951.826146] usb 2-1: device descriptor read/64, error -71
[79952.086321] usb 2-1: new high-speed USB device number 9 using ehci_marvell
[79952.246158] usb 2-1: device descriptor read/64, error -71
[79952.516205] usb 2-1: device descriptor read/64, error -71
[79952.775953] usb 2-1: new high-speed USB device number 10 using ehci_marvell
[79953.205858] usb 2-1: device not accepting address 10, error -71
[79953.355843] usb 2-1: new high-speed USB device number 11 using ehci_marvell
[79953.785851] usb 2-1: device not accepting address 11, error -71
[79953.791860] hub 2-0:1.0: unable to enumerate USB device on port 1