외장하드(자체클라우드 서버) I/0 오류

Question

데비안이 설치된 라즈베리 파이에 자체 클라우드 서버 설정이 있습니다. 대용량 저장소로 나는Intenso 500GB USB 드라이브이는LogiLink USB 허브라즈베리 파이는 USB 드라이브 자체에 전원을 공급할 수 없기 때문입니다. Raspi를 부팅하면 모든 것이 잘 작동하고 파일 동기화가 시작됩니다. 1h 다음과 같은 오류가 발생합니다.

Data directory (/media/usb1/owncloud/data) not writable by ownCloud
Permissions can usually be fixed by giving the webserver write access to the ownCloud directory

SSH를 통해 드라이브에 액세스하려고 하면 다음과 같은 메시지가 나타납니다.

pi@raspberrypi ~ $ ls /media/usb1
ls: reading directory /media/usb1: Input/output error

그리고 루트로 시도할지 여부는 중요하지 않습니다.

내 syslog를 살펴본 결과 이전에 여러 번 드라이브를 마운트하고 마운트 해제한 것을 발견했습니다.

Dec 22 13:13:51 thecabbage kernel: [    2.610218] usb 1-1: New USB device found, idVendor=0424, idProduct=9512
Dec 22 13:13:51 thecabbage kernel: [    2.618633] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
Dec 22 13:13:51 thecabbage kernel: [    2.628570] hub 1-1:1.0: USB hub found
Dec 22 13:13:51 thecabbage kernel: [    2.634990] hub 1-1:1.0: 3 ports detected
Dec 22 13:13:51 thecabbage kernel: [    2.919641] usb 1-1.1: new high-speed USB device number 3 using dwc_otg
Dec 22 13:13:51 thecabbage kernel: [    3.039878] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00
Dec 22 13:13:51 thecabbage kernel: [    3.048428] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
Dec 22 13:13:51 thecabbage kernel: [    3.062073] smsc95xx v1.0.4
Dec 22 13:13:51 thecabbage kernel: [    3.125592] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-bcm2708_usb-1.1, smsc95xx USB 2.0 Ethernet, b8:27:eb:b3:7a:73
Dec 22 13:13:51 thecabbage kernel: [    3.249669] usb 1-1.2: new high-speed USB device number 4 using dwc_otg
Dec 22 13:13:51 thecabbage kernel: [    3.381573] usb 1-1.2: New USB device found, idVendor=05e3, idProduct=0608
Dec 22 13:13:51 thecabbage kernel: [    3.396388] usb 1-1.2: New USB device strings: Mfr=0, Product=1, SerialNumber=0
Dec 22 13:13:51 thecabbage kernel: [    3.410539] usb 1-1.2: Product: USB2.0 Hub
Dec 22 13:13:51 thecabbage kernel: [    3.422131] hub 1-1.2:1.0: USB hub found
Dec 22 13:13:51 thecabbage kernel: [    3.430220] hub 1-1.2:1.0: 4 ports detected
Dec 22 13:13:51 thecabbage kernel: [    3.719824] usb 1-1.2.1: new high-speed USB device number 5 using dwc_otg
Dec 22 13:13:51 thecabbage kernel: [    3.841101] usb 1-1.2.1: New USB device found, idVendor=13fd, idProduct=1840
Dec 22 13:13:51 thecabbage kernel: [    3.859642] usb 1-1.2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Dec 22 13:13:51 thecabbage kernel: [    3.871457] usb 1-1.2.1: Product: USB 2.0 Drive
Dec 22 13:13:51 thecabbage kernel: [    3.877793] usb 1-1.2.1: Manufacturer: PI-239
Dec 22 13:13:51 thecabbage kernel: [    3.884178] usb 1-1.2.1: SerialNumber: 533252594A39434431313731
Dec 22 13:13:51 thecabbage kernel: [    3.892819] usb-storage 1-1.2.1:1.0: USB Mass Storage device detected
Dec 22 13:13:51 thecabbage kernel: [    3.901643] scsi0 : usb-storage 1-1.2.1:1.0
Dec 22 13:13:51 thecabbage kernel: [    4.900648] scsi 0:0:0:0: Direct-Access     PI-239   USB 2.0 Drive    1.08 PQ: 0 ANSI: 4
Dec 22 13:13:51 thecabbage kernel: [    4.933311] sd 0:0:0:0: [sda] 976773168 512-byte logical blocks: (500 GB/465 GiB)
Dec 22 13:13:51 thecabbage kernel: [    4.963305] sd 0:0:0:0: [sda] Write Protect is off
Dec 22 13:13:51 thecabbage kernel: [    4.989392] sd 0:0:0:0: [sda] Mode Sense: 23 00 00 00
Dec 22 13:13:51 thecabbage kernel: [    4.990187] sd 0:0:0:0: [sda] No Caching mode page found
Dec 22 13:13:51 thecabbage kernel: [    4.997069] sd 0:0:0:0: [sda] Assuming drive cache: write through
Dec 22 13:13:51 thecabbage kernel: [    5.035068] sd 0:0:0:0: [sda] No Caching mode page found
Dec 22 13:13:51 thecabbage kernel: [    5.059342] sd 0:0:0:0: [sda] Assuming drive cache: write through
Dec 22 13:13:51 thecabbage kernel: [    5.089366]  sda: sda1
Dec 22 13:13:51 thecabbage kernel: [    5.096949] sd 0:0:0:0: [sda] No Caching mode page found
Dec 22 13:13:51 thecabbage kernel: [    5.113466] sd 0:0:0:0: [sda] Assuming drive cache: write through
Dec 22 13:13:51 thecabbage kernel: [    5.140575] sd 0:0:0:0: [sda] Attached SCSI disk
Dec 22 13:13:51 thecabbage kernel: [    6.302336] bcm2708-i2s bcm2708-i2s.0: Failed to create debugfs directory
Dec 22 13:13:51 thecabbage kernel: [   15.139041] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
Dec 22 13:13:51 thecabbage kernel: [   15.627170] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
Dec 22 13:13:51 thecabbage kernel: [   24.054213] EXT4-fs (sda1): recovery complete
Dec 22 13:13:51 thecabbage kernel: [   24.063171] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)

하지만 그 당시에는 여전히 작동했습니다. 약 1시간 후에 다음과 같은 오류가 발생했습니다.

Dec 22 14:33:12 thecabbage kernel: [  470.843026] usb 1-1.2: USB disconnect, device number 4
Dec 22 14:33:12 thecabbage kernel: [  470.843063] usb 1-1.2.1: USB disconnect, device number 5
Dec 22 14:33:12 thecabbage kernel: [  470.853453] Buffer I/O error on device sda1, logical block 38034432
Dec 22 14:33:12 thecabbage kernel: [  470.853499] Buffer I/O error on device sda1, logical block 38034433
Dec 22 14:33:12 thecabbage kernel: [  470.853519] Buffer I/O error on device sda1, logical block 38034434
Dec 22 14:33:12 thecabbage kernel: [  470.853535] Buffer I/O error on device sda1, logical block 38034435
Dec 22 14:33:12 thecabbage kernel: [  470.853551] Buffer I/O error on device sda1, logical block 38034436
Dec 22 14:33:12 thecabbage kernel: [  470.853567] Buffer I/O error on device sda1, logical block 38034437
Dec 22 14:33:12 thecabbage kernel: [  470.853583] Buffer I/O error on device sda1, logical block 38034438
Dec 22 14:33:12 thecabbage kernel: [  470.853599] Buffer I/O error on device sda1, logical block 38034439
Dec 22 14:33:12 thecabbage kernel: [  470.853614] Buffer I/O error on device sda1, logical block 38034440
Dec 22 14:33:12 thecabbage kernel: [  470.853632] Buffer I/O error on device sda1, logical block 38034441
Dec 22 14:33:12 thecabbage kernel: [  470.853648] Buffer I/O error on device sda1, logical block 38034442
Dec 22 14:33:12 thecabbage kernel: [  470.853665] Buffer I/O error on device sda1, logical block 38034443
Dec 22 14:33:12 thecabbage kernel: [  470.853681] Buffer I/O error on device sda1, logical block 38034444
Dec 22 14:33:12 thecabbage kernel: [  470.853698] Buffer I/O error on device sda1, logical block 38034445
Dec 22 14:33:12 thecabbage kernel: [  470.853713] Buffer I/O error on device sda1, logical block 38034446
Dec 22 14:33:12 thecabbage kernel: [  470.853729] Buffer I/O error on device sda1, logical block 38034447
Dec 22 14:33:12 thecabbage kernel: [  470.853746] Buffer I/O error on device sda1, logical block 38034448q

이 오류의 원인이 무엇인지 아는 사람이 있나요? 내 용의자는 USB 허브와 전원 관리인데 확인하는 방법을 모르겠습니다. 하드 드라이브에 결함이 있는 것은 아닐까요? /etc/fstab에 따라 마운트됩니다.

UUID=915a8f36-5c7d-40e3-a451-a3babb0fa610       /media/usb1     ext4    defaults          0       0

미리 도움을 주셔서 감사합니다!