求帮助，ORA-1578，ORA-01092错误，谢谢
打开数据库的时候遇到ORA-01092: ORACLE instance terminated. Disconnection forced错误，查看alert日志内容如下：
Tue Nov 15 15:47:39 2011
Starting ORACLE instance (normal)
LICENSE_MAX_SESSION = 0
LICENSE_SESSIONS_WARNING = 0
Picked latch-free SCN scheme 2
Using LOG_ARCHIVE_DEST_10 parameter default value as USE_DB_RECOVERY_FILE_DEST
Autotune of undo retention is turned on.
IMODE=BR
ILAT =18
LICENSE_MAX_USERS = 0
SYS auditing is disabled
ksdpec: called for event 13740 prior to event group initialization
Starting up ORACLE RDBMS Version: 10.2.0.1.0.
System parameters with non-default values:
processes = 150
cpu_count = 2
__shared_pool_size = 188743680
__large_pool_size = 4194304
__java_pool_size = 4194304
__streams_pool_size = 0
sga_target = 591396864
control_files = /u01/app/oracle/oradata/orcl/control02.ctl, /u01/app/oracle/oradata/orcl/control03.ctl
db_block_size = 8192
__db_cache_size = 385875968
compatible = 10.2.0.1.0
db_file_multiblock_read_count= 8
db_recovery_file_dest = /u01/app/oracle/flash_recovery_area/
db_recovery_file_dest_size= 2147483648
undo_management = AUTO
undo_tablespace = UNDOTBS1
remote_login_passwordfile= EXCLUSIVE
db_domain =
dispatchers = (PROTOCOL=TCP) (SERVICE=orclXDB)
job_queue_processes = 10
background_dump_dest = /u01/app/oracle/admin/orcl/bdump
user_dump_dest = /u01/app/oracle/admin/orcl/udump
core_dump_dest = /u01/app/oracle/admin/orcl/cdump
audit_file_dest = /u01/app/oracle/admin/orcl/adump
db_name = orcl
open_cursors = 300
pga_aggregate_target = 196083712
PSP0 started with pid=3, OS id=2796
PMON started with pid=2, OS id=2794
MMAN started with pid=4, OS id=2798
DBW0 started with pid=5, OS id=2800
LGWR started with pid=6, OS id=2802
CKPT started with pid=7, OS id=2804
SMON started with pid=8, OS id=2806
RECO started with pid=9, OS id=2808
CJQ0 started with pid=10, OS id=2810
MMON started with pid=11, OS id=2812
Tue Nov 15 15:47:41 2011
starting up 1 dispatcher(s) for network address '(ADDRESS=(PARTIAL=YES)(PROTOCOL=TCP))'...
MMNL started with pid=12, OS id=2814
Tue Nov 15 15:47:41 2011
starting up 1 shared server(s) ...
Tue Nov 15 15:47:42 2011
ALTER DATABASE MOUNT
Tue Nov 15 15:47:46 2011
Setting recovery target incarnation to 2
Tue Nov 15 15:47:46 2011
Successful mount of redo thread 1, with mount id 1295059870
Tue Nov 15 15:47:46 2011
Database mounted in Exclusive Mode
Completed: ALTER DATABASE MOUNT
Tue Nov 15 15:47:53 2011
alter database open
Tue Nov 15 15:47:53 2011
Beginning crash recovery of 1 threads
parallel recovery started with 2 processes
Tue Nov 15 15:47:53 2011
Started redo scan
Tue Nov 15 15:47:54 2011
Completed redo scan
1 redo blocks read, 0 data blocks need recovery
Tue Nov 15 15:47:54 2011
Started redo application at
Thread 1: logseq 14, block 2, scn 735161
Tue Nov 15 15:47:54 2011
Recovery of Online Redo Log: Thread 1 Group 1 Seq 14 Reading mem 0
Mem# 0 errs 0: /u01/app/oracle/oradata/orcl/redo01.log
Mem# 1 errs 0: /u01/app/oracle/oradata/orcl/redo01b.log
Tue Nov 15 15:47:54 2011
Completed redo application
Tue Nov 15 15:47:54 2011
Completed crash recovery at
Thread 1: logseq 14, block 3, scn 755163
0 data blocks read, 0 data blocks written, 1 redo blocks read
Tue Nov 15 15:47:55 2011
Thread 1 advanced to log sequence 15
Thread 1 opened at log sequence 15
Current log# 2 seq# 15 mem# 0: /u01/app/oracle/oradata/orcl/redo02.log
Current log# 2 seq# 15 mem# 1: /u01/app/oracle/oradata/orcl/redo02b.log
Successful open of redo thread 1
Tue Nov 15 15:47:55 2011
MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set
Tue Nov 15 15:47:55 2011
SMON: enabling cache recovery
Tue Nov 15 15:47:56 2011
Errors in file /u01/app/oracle/admin/orcl/udump/orcl_ora_2820.trc:
ORA-01578: ORACLE data block corrupted (file # 2, block # 57)
ORA-01110: data file 2: '/u01/app/oracle/oradata/orcl/undotbs01.dbf'
Tue Nov 15 15:47:56 2011
Errors in file /u01/app/oracle/admin/orcl/bdump/orcl_dbw0_2800.trc:
ORA-01578: ORACLE data block corrupted (file # , block # )
Instance terminated by USER, pid = 2820
ORA-1092 signalled during: alter database open
...
数据库运行在noarchivelog模式下，现在数据库只能mount，open的时候就出现错误：
SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01092: ORACLE instance terminated. Disconnection forced
谢谢啦
[解决办法]
重建一个undo 数据文件。。
[解决办法]
startup mount
[解决办法]
先讲数据库的undo_management设置成 manual
打开数据库后，重建undo表空间
然后 将undo_management 修改成auto 同时修改参数中的undo_tablespace的值
[解决办法]
查看警告日志，看看是否有如下类似的警告信息：
ORA-30012: undo tablespace ‘UNDO_TBS’ does not exist or of wrong type
如果有说明需要重建表空间，具体操作如下：
SQL> startup mount
SQL> select name from v$datafile;
SQL> show parameter undo;
SQL> select name from v$tablespace;
SQL> alter system set undo_tablespace=’undotbs1′ scope=spfile;
SQL> shutdown immediate;
SQL> startup;
[解决办法]
如果联系我，请使用qq，csdn我不是经常上
[解决办法]
试着借助参数_allow_resetlogs_corruption 参数，进行不验证的打开。
[解决办法]
