Huhu,
spontan würde ich mal drauf tippen, das der USB Port oder sogar ein Teil
vom USB Controller die Hufe hoch gerissen hat.
Wie verhält sich denn die Platte an einem anderen System?

Gruß
Frank
Am 05.11.2014 um 12:41 schrieb J. Echter:
> Hallo,

> habe CentOS 6.5 x64, an diesem Rechner habe ich eine USB-Platte auf die
> mein Backup Programm Sicherungen macht.

> Diese Platte hört plötzlich auf zu funktionieren und ist auch erst
> wieder nach einem Reboot nutzbar.

> Wenn ich die Platte tausche und eine andere anschliesse dann wird diese
> auch, bis zum Reboot, nicht erkannt.

> dmesg spuckt folgendes aus:

> usb 2-1.5: USB disconnect, device number 4
> usb 2-1.5: new high speed USB device number 5 using ehci_hcd
> usb 2-1.5: New USB device found, idVendor=1759, idProduct=5000
> usb 2-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
> usb 2-1.5: Product: MassStorage Device
> usb 2-1.5: Manufacturer: USB 3.0
> usb 2-1.5: SerialNumber:            73K4S4RGS
> usb 2-1.5: configuration #1 chosen from 1 choice
> scsi8 : SCSI emulation for USB Mass Storage devices
> usb-storage: device found at 5
> usb-storage: waiting for device to settle before scanning
> usb-storage: device scan complete
> scsi 8:0:0:0: Direct-Access     USB 3.0  LucidPort USB300 0100 PQ: 0
> ANSI: 4
> sd 8:0:0:0: Attached scsi generic sg3 type 0
> sd 8:0:0:0: [sdc] 625142448 512-byte logical blocks: (320 GB/298 GiB)
> sd 8:0:0:0: [sdc] Write Protect is off
> sd 8:0:0:0: [sdc] Mode Sense: 03 00 00 00
> sd 8:0:0:0: [sdc] Assuming drive cache: write through
> sd 8:0:0:0: [sdc] Assuming drive cache: write through
>  sdc: sdc1
> sd 8:0:0:0: [sdc] Assuming drive cache: write through
> sd 8:0:0:0: [sdc] Attached SCSI disk
> EXT4-fs (sdc1): mounted filesystem with ordered data mode. Opts:
> ...
> ganz viel davon
> ...
> EXT4-fs (sdc1): mounted filesystem with ordered data mode. Opts:
> usb 2-1.5: USB disconnect, device number 5
> usb 2-1.5: new high speed USB device number 6 using ehci_hcd
> usb 2-1.5: New USB device found, idVendor=1759, idProduct=5000
> usb 2-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
> usb 2-1.5: Product: MassStorage Device
> usb 2-1.5: Manufacturer: USB 3.0
> usb 2-1.5: SerialNumber:      WD-WX71A8295652
> usb 2-1.5: configuration #1 chosen from 1 choice
> scsi9 : SCSI emulation for USB Mass Storage devices
> usb-storage: device found at 6
> usb-storage: waiting for device to settle before scanning
> usb-storage: device scan complete
> scsi 9:0:0:0: Direct-Access     USB 3.0  LucidPort USB300 0100 PQ: 0
> ANSI: 4
> sd 9:0:0:0: Attached scsi generic sg3 type 0
> sd 9:0:0:0: [sdc] 625142448 512-byte logical blocks: (320 GB/298 GiB)
> sd 9:0:0:0: [sdc] Write Protect is off
> sd 9:0:0:0: [sdc] Mode Sense: 03 00 00 00
> sd 9:0:0:0: [sdc] Assuming drive cache: write through
> sd 9:0:0:0: [sdc] Assuming drive cache: write through
>  sdc: sdc1
> sd 9:0:0:0: [sdc] Assuming drive cache: write through
> sd 9:0:0:0: [sdc] Attached SCSI disk
> EXT4-fs (sdc1): recovery complete
> EXT4-fs (sdc1): mounted filesystem with ordered data mode. Opts:
> EXT4-fs (sdc1): mounted filesystem with ordered data mode. Opts:
> EXT4-fs (sdc1): mounted filesystem with ordered data mode. Opts:
> EXT4-fs (sdc1): mounted filesystem with ordered data mode. Opts:
> hub 2-1:1.0: cannot reset port 5 (err = -110)
> hub 2-1:1.0: cannot reset port 5 (err = -110)
> hub 2-1:1.0: cannot reset port 5 (err = -110)
> hub 2-1:1.0: cannot reset port 5 (err = -110)
> hub 2-1:1.0: cannot reset port 5 (err = -110)
> hub 2-1:1.0: Cannot enable port 5.  Maybe the USB cable is bad?
> hub 2-1:1.0: cannot disable port 5 (err = -110)
> hub 2-1:1.0: cannot reset port 5 (err = -110)
> usb 2-1.5: reset high speed USB device number 6 using ehci_hcd
> ehci_hcd 0000:00:1d.0: fatal error
> ehci_hcd 0000:00:1d.0: HC died; cleaning up
> ehci_hcd 0000:00:1d.0: force halt; handhake ffffc9000306e024 00004000
> 00004000 -> -110
> ehci_hcd 0000:00:1d.0: HC died; cleaning up
> usb 2-1: USB disconnect, device number 2
> usb 2-1.2: USB disconnect, device number 3
> usb 2-1.5: device descriptor read/all, error -19
> hub 2-1:1.0: cannot disable port 5 (err = -19)
> hub 2-1:1.0: cannot disable port 5 (err = -19)
> sd 9:0:0:0: Device offlined - not ready after error recovery
> sd 9:0:0:0: [sdc]  Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
> sd 9:0:0:0: [sdc] CDB: Write(10): 2a 00 12 9e 3d 48 00 00 08 00
> end_request: I/O error, dev sdc, sector 312360264
> Buffer I/O error on device sdc1, logical block 39044777
> lost page write due to I/O error on sdc1
> sd 9:0:0:0: rejecting I/O to offline device
> sd 9:0:0:0: [sdc] killing request
> sd 9:0:0:0: rejecting I/O to offline device
> ...
> ganz viel davon
> ...
> sd 9:0:0:0: rejecting I/O to offline device
> JBD2: Detected IO errors while flushing file data on sdc1-8
> sd 9:0:0:0: rejecting I/O to offline device
> sd 9:0:0:0: rejecting I/O to offline device
> sd 9:0:0:0: rejecting I/O to offline device
> sd 9:0:0:0: rejecting I/O to offline device
> sd 9:0:0:0: rejecting I/O to offline device
> sd 9:0:0:0: rejecting I/O to offline device
> sd 9:0:0:0: rejecting I/O to offline device
> sd 9:0:0:0: rejecting I/O to offline device
> sd 9:0:0:0: rejecting I/O to offline device
> sd 9:0:0:0: rejecting I/O to offline device
> sd 9:0:0:0: rejecting I/O to offline device
> sd 9:0:0:0: [sdc]  Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK
> sd 9:0:0:0: [sdc] CDB: Write(10): 2a 00 12 85 54 20 00 00 10 00
> end_request: I/O error, dev sdc, sector 310727712
> sd 9:0:0:0: rejecting I/O to offline device
> ...
> ganz viel davon
> ...
> sd 9:0:0:0: rejecting I/O to offline device
> EXT4-fs (sdc1): delayed block allocation failed for inode 12 at logical
> offset 36534272 with max blocks 2048 with error -5

> This should not happen!!  Data will be lost
> sd 9:0:0:0: rejecting I/O to offline device
> ...
> extrem viel davon
> ...
> sd 9:0:0:0: rejecting I/O to offline device
> Aborting journal on device sdc1-8.
> sd 9:0:0:0: rejecting I/O to offline device
> JBD2: I/O error detected when updating journal superblock for sdc1-8.
> JBD2: Detected IO errors while flushing file data on sdc1-8
> usb 2-1.5: USB disconnect, device number 6
> EXT4-fs error (device sdc1): ext4_journal_start_sb: Detected aborted
> journal
> EXT4-fs (sdc1): Remounting filesystem read-only
> EXT4-fs (sdc1): ext4_da_writepages: jbd2_start: 8192 pages, ino 12; err -30

> EXT4-fs error (device sdc1): ext4_read_block_bitmap: Cannot read block
> bitmap - block_group = 2260, block_bitmap = 73924612
> EXT4-fs error (device sdc1): ext4_discard_preallocations: Error reading
> block bitmap for 2260
> Buffer I/O error on device sdc1, logical block 0
> lost page write due to I/O error on sdc1
> EXT4-fs error (device sdc1): ext4_put_super: Couldn't clean up the journal

> kann mir da jemand auf die Sprünge helfen?

> Der Server läuft an sich durch, nur wenn die Platten wieder nicht
> erkannt werden muss ich neu starten.

> Danke

> Jürgen