ORA-01205: not a data file – type number in header is 0

数据库open成功，但是有undo文件异常报ORA-00376

Mon Feb 04 07:43:18 中国标准时间 2019
Completed: alter database open
Mon Feb 04 07:43:18 中国标准时间 2019
ALTER SYSTEM disable restricted session;
Mon Feb 04 07:43:19 中国标准时间 2019
ORA-376 encountered when generating server alert SMG-4120
Mon Feb 04 07:43:19 中国标准时间 2019
Errors in file d:\oracle\xff\xff\background\xff_cjq0_5428.trc:
ORA-00604: error occurred at recursive SQL level 1
ORA-00376: file 2 cannot be read at this time
ORA-01110: data file 2: 'K:\ORACLE\SAP\SAPDATA1\UNDO_1\UNDO.DATA1'

检查文件状态

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恢复之后报错
数据库无法正常open,提示ORA-07445 _intel_fast_memset.A和ORA-01205错误

Wed Feb 06 12:51:01 中国标准时间 2019
ALTER DATABASE RECOVER  datafile 2  
Wed Feb 06 12:51:01 中国标准时间 2019
Media Recovery Start
Read of rdba: 0x00800001 (file 2, block 1) failed with ORA-01205.
Trying reread from disk.
Reread of rdba: 0x00800001 (file 2, block 1) failed with ORA-01205
Wed Feb 06 12:51:01 中国标准时间 2019
Errors in file d:\oracle\xff\xff\usertrace\xff_ora_6988.trc:
ORA-07445: exception encountered: core dump [ACCESS_VIOLATION] [_intel_fast_memset.A+44] 
                                    [PC:0x356EA7C] [ADDR:0x7F20000] [UNABLE_TO_WRITE] []
ORA-01205: not a data file - type number in header is 0

Wed Feb 06 12:52:14 中国标准时间 2019
alter database open
Wed Feb 06 12:52:15 中国标准时间 2019
LGWR: STARTING ARCH PROCESSES
ARC0 started with pid=17, OS id=6124
Wed Feb 06 12:52:15 中国标准时间 2019
ARC0: Archival started
ARC1: Archival started
LGWR: STARTING ARCH PROCESSES COMPLETE
ARC1 started with pid=18, OS id=7044
Wed Feb 06 12:52:15 中国标准时间 2019
Thread 1 opened at log sequence 1370107
  Current log# 2 seq# 1370107 mem# 0: D:\ORACLE\xff\ORIGLOGB\LOG_G12M1.DBF
  Current log# 2 seq# 1370107 mem# 1: E:\ORACLE\xff\MIRRLOGB\LOG_G12M2.DBF
Successful open of redo thread 1
Wed Feb 06 12:52:15 中国标准时间 2019
MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set
Wed Feb 06 12:52:15 中国标准时间 2019
ARC0: STARTING ARCH PROCESSES
Wed Feb 06 12:52:15 中国标准时间 2019
ARC1: Becoming the 'no FAL' ARCH
ARC1: Becoming the 'no SRL' ARCH
Wed Feb 06 12:52:15 中国标准时间 2019
ARC2: Archival started
ARC0: STARTING ARCH PROCESSES COMPLETE
ARC0: Becoming the heartbeat ARCH
ARC2 started with pid=19, OS id=3772
Wed Feb 06 12:52:15 中国标准时间 2019
SMON: enabling cache recovery
Wed Feb 06 12:52:15 中国标准时间 2019
Read of rdba: 0x00800001 (file 2, block 1) failed with ORA-01205.
Trying reread from disk.
Reread of rdba: 0x00800001 (file 2, block 1) failed with ORA-01205
Wed Feb 06 12:52:15 中国标准时间 2019
Errors in file d:\oracle\xff\xff\usertrace\xff_ora_5036.trc:
ORA-07445: exception encountered: core dump [ACCESS_VIOLATION] [_intel_fast_memset.A+44]
                                       [PC:0x356EA7C] [ADDR:0xD5F0000] [UNABLE_TO_WRITE] []
ORA-01205: not a data file - type number in header is 0

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恢复成功
有备份,但是因为备份集有损坏无法正常还原,运气不错,通过人工操作正常恢复datafile 2并且正常recover成功,数据库正常open成功

Sat Feb 09 10:09:40 中国标准时间 2019
Successfully onlined Undo Tablespace 1.
Sat Feb 09 10:09:40 中国标准时间 2019
SMON: enabling tx recovery
Sat Feb 09 10:09:40 中国标准时间 2019
Database Characterset is UTF8
Opening with internal Resource Manager plan 
Starting background process QMNC
QMNC started with pid=36, OS id=3888
Sat Feb 09 10:09:42 中国标准时间 2019
Completed: alter database open