Pessoal,

Alguém sabe porque o erro abaixo aconteceu?

Obs: resolvi o problema com o problema fazendo uma recuperação, mas tenho medo 
deste erro voltar a acontecer.


S.O
Linux gi-ora-03 2.6.9-42.ELsmp #1 SMP Wed Jul 12 23:27:17 EDT 2006 i686 i686 
i386 GNU/Linux

Oracle
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - Prod


Segue log de alerta

Sun Aug  2 00:26:13 2009
Thread 1 cannot allocate new log, sequence 734
Private strand flush not complete
  Current log# 2 seq# 733 mem# 0: /u02/oradata/prod02/redo/redoB02.rdo
  Current log# 2 seq# 733 mem# 1: /u02/oradata/prod02/redo/redoA02.rdo
Sun Aug  2 00:26:13 2009
Thread 1 advanced to log sequence 734 (LGWR switch)
  Current log# 4 seq# 734 mem# 0: /u02/oradata/prod02/redo/redoA04.rdo
  Current log# 4 seq# 734 mem# 1: /u02/oradata/prod02/redo/redoB04.rdo
Sun Aug  2 00:51:06 2009
Thread 1 cannot allocate new log, sequence 735
Private strand flush not complete
  Current log# 4 seq# 734 mem# 0: /u02/oradata/prod02/redo/redoA04.rdo
  Current log# 4 seq# 734 mem# 1: /u02/oradata/prod02/redo/redoB04.rdo
Sun Aug  2 00:51:08 2009
Thread 1 advanced to log sequence 735 (LGWR switch)
  Current log# 3 seq# 735 mem# 0: /u02/oradata/prod02/redo/redoA03.rdo
  Current log# 3 seq# 735 mem# 1: /u02/oradata/prod02/redo/redoB03.rdo
Sun Aug  2 04:35:31 2009
Errors in file /u01/app/oracle/admin/prod02/bdump/prod02_lgwr_20790.trc:
ORA-00345: redo log write error block 29819 count 2
ORA-00312: online log 3 thread 1: '/u02/oradata/prod02/redo/redoA03.rdo'
ORA-27072: File I/O error
Linux Error: 5: Input/output error
Additional information: 4
Additional information: 29819
Additional information: -1
ORA-00345: redo log write error block 29819 count 2
ORA-00312: online log 3 thread 1: '/u02/oradata/prod02/redo/redoB03.rdo'
ORA-27072: File I/O error
Linux Error: 5: Input/output error
Additional information: 4
Additional information: 29819
Additional information: -1
Sun Aug  2 04:35:40 2009
Errors in file /u01/app/oracle/admin/prod02/bdump/prod02_lgwr_20790.trc:
ORA-00340: IO error processing online log 3 of thread 1
ORA-00345: redo log write error block 29819 count 2
ORA-00312: online log 3 thread 1: '/u02/oradata/prod02/redo/redoA03.rdo'
ORA-27072: File I/O error
Linux Error: 5: Input/output error
Additional information: 4
Additional information: 29819
Additional information: -1
ORA-00345: redo log write error block 29819 count 2
ORA-00312: online log 3 thread 1: '/u02/oradata/prod02/redo/redoB03.rdo'
ORA-27072: File I/O error
Linux Error: 5: Input/output error
Additional information: 4
Additional information: 29819
Additional information: -1
Sun Aug  2 04:35:40 2009
LGWR: terminating instance due to error 340
Instance terminated by LGWR, pid = 20790

Atenciosamente,

Dalton

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