Why does df output reports Input/output error.

Solution Verified - Updated -

Issue

  • df command shows Input/output error for specific mount point.
  • dmesg output
.FAT: FAT read failed (blocknr 6)
scsi 838:0:0:0: rejecting I/O to dead device
FAT: FAT read failed (blocknr 6)
  • df output
[root@server tmp]# df -h
Filesystem            Size  Used Avail Use% Mounted on
....
....
....
df: `/path/to/mountpoint': Input/output error

Environment

  • Red Hat Enterprise Linux 4
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6

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