某客户的一套11gR2 dataguard环境出现异常，检查发现是备库出现文件损坏，且无法正常情况，已经超过1个多月没同步了。 我们先来看下备库的日志：
.......省略部分内容
See Note 411.1 at My Oracle Support for error and packaging details.
Slave exiting with ORA-600 exception
Errors in file /u01/app/oracle/diag/rdbms/crjnew/crjnew/trace/crjnew_pr0p_9892.trc:
ORA-00600: internal error code, arguments: [3020], [3], [6118], [12589030], [], [], [], [], [], [], [], []
ORA-10567: Redo is inconsistent with data block (file# 3, block# 6118, file offset is 50118656 bytes)
ORA-10564: tablespace UNDOTBS1
ORA-01110: data file 3: '/u01/app/oracle/oradata/CRJNEW/datafile/o1_mf_undotbs1_859l2yrm_.dbf'
ORA-10560: block type 'KTU UNDO BLOCK'
Use ADRCI or Support Workbench to package the incident.
See Note 411.1 at My Oracle Support for error and packaging details.
Slave exiting with ORA-600 exception
Errors in file /u01/app/oracle/diag/rdbms/crjnew/crjnew/trace/crjnew_pr1p_9964.trc:
ORA-00600: internal error code, arguments: [3020], [3], [3740], [12586652], [], [], [], [], [], [], [], []
ORA-10567: Redo is inconsistent with data block (file# 3, block# 3740, file offset is 30638080 bytes)
ORA-10564: tablespace UNDOTBS1
ORA-01110: data file 3: '/u01/app/oracle/oradata/CRJNEW/datafile/o1_mf_undotbs1_859l2yrm_.dbf'
ORA-10560: block type 'KTU UNDO BLOCK'
Recovery interrupted!
Recovered data files to a consistent state at change 12331596958128
MRP0: Background Media Recovery process shutdown (crjnew)
.....省略部分内容
Tue May 27 19:30:03 2014
Errors in file /u01/app/oracle/diag/rdbms/crjnew/crjnew/trace/crjnew_pr1e_21956.trc (incident=444672):
ORA-10567: Redo is inconsistent with data block (file# 16, block# 1016759, file offset is 4034322432 bytes)
ORA-10564: tablespace CRJ
ORA-01110: data file 16: '/u01/app/oracle/oradata/CRJNEW/datafile/crj_data09.dbf'
ORA-10561: block type 'TRANSACTION MANAGED INDEX BLOCK', data object# 77037
Incident details in: /u01/app/oracle/diag/rdbms/crjnew/crjnew/incident/incdir_444672/crjnew_pr1e_21956_i444672.trc
Tue May 27 19:30:06 2014
Dumping diagnostic data in directory=[cdmp_20140527193006], requested by (instance=1, osid=21956 (PR1E)), summary=[incident=444672].
Use ADRCI or Support Workbench to package the incident.
See Note 411.1 at My Oracle Support for error and packaging details.
Slave exiting with ORA-600 exception
Errors in file /u01/app/oracle/diag/rdbms/crjnew/crjnew/trace/crjnew_pr1e_21956.trc:
ORA-00600: internal error code, arguments: [3020], [16], [1016759], [68125623], [], [], [], [], [], [], [], []
ORA-10567: Redo is inconsistent with data block (file# 16, block# 1016759, file offset is 4034322432 bytes)
ORA-10564: tablespace CRJ
ORA-01110: data file 16: '/u01/app/oracle/oradata/CRJNEW/datafile/crj_data09.dbf'
ORA-10561: block type 'TRANSACTION MANAGED INDEX BLOCK', data object# 77037
Tue May 27 19:30:06 2014
Errors in file /u01/app/oracle/diag/rdbms/crjnew/crjnew/trace/crjnew_mrp0_21854.trc (incident=444262):
ORA-00600: internal error code, arguments: [3020], [16], [1016759], [68125623], [], [], [], [], [], [], [], []
ORA-10567: Redo is inconsistent with data block (file# 16, block# 1016759, file offset is 4034322432 bytes)
ORA-10564: tablespace CRJ
ORA-01110: data file 16: '/u01/app/oracle/oradata/CRJNEW/datafile/crj_data09.dbf'
ORA-10561: block type 'TRANSACTION MANAG