[CentOS-es] Disco usb en Centos 6

[Cesar Augusto Martinez Cobo]

Buenas tardes Compañeros; tengo el siguiente inconveniente con un disco externo con
conexion USB, lo tengo conectado para hacer nackup de el sistema pero cuando lo realiza
sale el siguiente error:
end_request: I/O error, dev sdc, sector 86537887
Buffer I/O error on device sdc1, logical block 10817228
Buffer I/O error on device sdc1, logical block 10817230
Buffer I/O error on device sdc1, logical block 10817231
Buffer I/O error on device sdc1, logical block 10817232
Buffer I/O error on device sdc1, logical block 10817233
Buffer I/O error on device sdc1, logical block 10817234
Buffer I/O error on device sdc1, logical block 10817235
Buffer I/O error on device sdc1, logical block 10817236
Buffer I/O error on device sdc1, logical block 10817237
Buffer I/O error on device sdc1, logical block 10817239
end_request: I/O error, dev sdc, sector 86537895
EXT3-fs error (device sdc1): read_block_bitmap: Cannot read block bitmap -
block_group = 331, block_bitmap = 10846208
Aborting journal on device sdc1.
journal commit I/O error

Message from syslogd en matematicas at Jul 23 02:27:58 ...
 kernel:journal commit I/O error
sd 4:0:0:0: [sdd] Assuming drive cache: write through
sd 4:0:0:0: [sdd] Assuming drive cache: write through
sd 4:0:0:0: [sdd] Assuming drive cache: write through
EXT3-fs error (device sdc1): ext3_find_entry: reading directory #2 offset
0
ext3_abort called.
EXT3-fs error (device sdc1): ext3_journal_start_sb: Detected aborted
journal
Remounting filesystem read-only
EXT3-fs error (device sdc1): ext3_find_entry: reading directory #2 offset
0
EXT3-fs error (device sdc1): ext3_find_entry: reading directory #2 offset
0
EXT3-fs error (device sdc1): ext3_find_entry: reading directory #2 offset
0
EXT3-fs error (device sdc1): ext3_find_entry: reading directory #2 offset
0
EXT3-fs error (device sdc1): ext3_find_entry: reading directory #2 offset
0
EXT3-fs error (device sdc1): ext3_find_entry: reading directory #2 offset
0
EXT3-fs error (device sdc1): ext3_find_entry: reading directory #2 offset
0
EXT3-fs error (device sdc1): ext3_find_entry: reading directory #2 offset
0
EXT3-fs error (device sdc1): ext3_find_entry: reading directory #2 offset
0 
Lugo reinicio el servidor y lo carga normal no se a que se debe esto, les agradeceria su
colaboracion.


De antemano muchas gracias

********************************************
Cesar Augusto Martinez Cobo
Administrador de Sistemas
Facultad de Ciencias Exactas y Naturales
Universidad de Antioquia
Tel: ++57(4)2195604
Medellin - Colombia
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