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[vox-tech] Flash Drive mount failure
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[vox-tech] Flash Drive mount failure



Hi,

While mounting one of the external hard disk we are getting the following error.

Messages from dmesg:
usb 1-5: new high speed USB device using ehci_hcd and address 5
scsi4 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 5
usb-storage: waiting for device to settle before scanning
  Vendor: ST340083  Model: 2A                Rev:  0 0
  Type:   Direct-Access                      ANSI SCSI revision: 00
SCSI device sda: 781422768 512-byte hdwr sectors (400088 MB)
sda: assuming drive cache: write through
SCSI device sda: 781422768 512-byte hdwr sectors (400088 MB)
sda: assuming drive cache: write through
 sda: sda1
Attached scsi disk sda at scsi4, channel 0, id 0, lun 0
usb-storage: device scan complete
SCSI error : <4 0 0 0> return code = 0x8000002
sda: Current: sense key: Medium Error
    Additional sense: Unrecovered read error
end_request: I/O error, dev sda, sector 0
Buffer I/O error on device sda, logical block 0
SCSI error : <4 0 0 0> return code = 0x8000002
sda: Current: sense key: Medium Error
    Additional sense: Unrecovered read error
end_request: I/O error, dev sda, sector 8
Buffer I/O error on device sda, logical block 1
nfs_statfs: statfs error = 116
SCSI error : <4 0 0 0> return code = 0x8000002
sda: Current: sense key: Medium Error
    Additional sense: Unrecovered read error
end_request: I/O error, dev sda, sector 16
Buffer I/O error on device sda, logical block 2
SCSI error : <4 0 0 0> return code = 0x8000002
sda: Current: sense key: Medium Error
    Additional sense: Unrecovered read error
end_request: I/O error, dev sda, sector 24
Buffer I/O error on device sda, logical block 3
SCSI error : <4 0 0 0> return code = 0x8000002
sda: Current: sense key: Medium Error
    Additional sense: Unrecovered read error
end_request: I/O error, dev sda, sector 32
Buffer I/O error on device sda, logical block 4
SCSI error : <4 0 0 0> return code = 0x8000002
sda: Current: sense key: Medium Error
    Additional sense: Unrecovered read error
end_request: I/O error, dev sda, sector 40
Buffer I/O error on device sda, logical block 5
nfs_statfs: statfs error = 116
SCSI error : <4 0 0 0> return code = 0x8000002
sda: Current: sense key: Medium Error
    Additional sense: Unrecovered read error
end_request: I/O error, dev sda, sector 48
Buffer I/O error on device sda, logical block 6
SCSI error : <4 0 0 0> return code = 0x8000002
sda: Current: sense key: Medium Error
    Additional sense: Unrecovered read error
end_request: I/O error, dev sda, sector 56
Buffer I/O error on device sda, logical block 7


We have been working on this disk and suddenly crashed down and later we are not been able to mount it.

Any suggestion how to recover the data would be greatly appriciated.

Thanking you in advance.

Regards
Soumyadeep


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