В чем может быть проблема, контроллер?

[root@psyx-srv ~]# sha1sum /mnt/raid/backup/20121125030802.tar.gz
9938bc84b41ce121648d035bb03161a4d3d08deb  /mnt/raid/backup/20121125030802.tar.gz


[root@psyx-srv ~]# cp /mnt/raid/backup/20121125030802.tar.gz /tmp/p/
[root@psyx-srv ~]# sha1sum /tmp/p/20121125030802.tar.gz
4f59dcaa0147e99d5eab949141ae5091a61ecf83  /tmp/p/20121125030802.tar.gz

[root@psyx-srv ~]# cp /mnt/raid/backup/20121125030802.tar.gz /mnt/pub/tmp/
[root@psyx-srv ~]# sha1sum /mnt/pub/tmp/20121125030802.tar.gz
8c367ae89cb5cdd329f3545677a6ec3de545cbe3  /mnt/pub/tmp/20121125030802.tar.gz


[root@psyx-srv ~]# md5sum /mnt/raid/backup/20121125030802.tar.gz
bb1b41d64a26956af2de79691ebcff8e  /mnt/raid/backup/20121125030802.tar.gz
[root@psyx-srv ~]# md5sum /tmp/p/20121125030802.tar.gz
e663da324a48dd166611a6f8e4deacc0  /tmp/p/20121125030802.tar.gz
[root@psyx-srv ~]# md5sum /mnt/pub/tmp/20121125030802.tar.gz
b87933821877e9d7a25310b6a4d57720  /mnt/pub/tmp/20121125030802.tar.gz


[root@psyx-srv ~]# for d in /dev/sd?; do echo $d; smartctl -A $d | grep Pre-fail; done
/dev/sda
  1 Raw_Read_Error_Rate     0x002f   200   200   051    Pre-fail  Always       -       2
  3 Spin_Up_Time            0x0027   142   142   021    Pre-fail  Always       -       3875
  5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail  Always       -       0
/dev/sdb
  1 Raw_Read_Error_Rate     0x002f   200   200   051    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0027   179   174   021    Pre-fail  Always       -       4041
  5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail  Always       -       0
/dev/sdc
  1 Raw_Read_Error_Rate     0x002f   200   200   051    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0027   183   175   021    Pre-fail  Always       -       3850
  5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail  Always       -       0
/dev/sdd
  1 Raw_Read_Error_Rate     0x002f   200   200   051    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0027   169   158   021    Pre-fail  Always       -       6550
  5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail  Always       -       0
/dev/sde
  1 Raw_Read_Error_Rate     0x002f   200   200   051    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0027   253   253   021    Pre-fail  Always       -       966
  5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail  Always       -       0
/dev/sdf
  1 Raw_Read_Error_Rate     0x002f   200   200   051    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0027   169   140   021    Pre-fail  Always       -       8541
  5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail  Always       -       0