存储介质损坏ORA-01578数据库无法open案例

存储介质损坏ORA-01578数据库无法open案例

一个10g的数据库由于存储介质异常导致数据库块损坏，数据库无法open

Sun Sep 15 19:42:04 2019
Hex dump of (file 1, block 92) in trace file d:\oracle\product\10.2.0\admin\orcl\bdump\orcl_smon_2036.trc
Corrupt block relative dba: 0x0040005c (file 1, block 92)
Bad check value found during buffer read
Data in bad block:
 type: 6 format: 2 rdba: 0x0040005c
 last change scn: 0x0000.11d6cc54 seq: 0x1 flg: 0x06
 spare1: 0x0 spare2: 0x0 spare3: 0x0
 consistency value in tail: 0xcc540601
 check value in block header: 0xc4e4
 computed block checksum: 0xf4b4
Reread of rdba: 0x0040005c (file 1, block 92) found same corrupted data
Sun Sep 15 19:42:04 2019
Errors in file d:\oracle\product\10.2.0\admin\orcl\bdump\orcl_smon_2036.trc:
ORA-00604: error occurred at recursive SQL level 1
ORA-01578: ORACLE data block corrupted (file # 1, block # 92)
ORA-01110: data file 1: 'D:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\SYSTEM01.DBF'

解决方法：

参考：Extracting Data from a Corrupt Table using DBMS_REPAIR or Event 10231 (文档 ID 33405.1)

 Setting the Event at Instance level
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	This requires that the event be added to the init$ORACLE_SID.ora file
 	used to start the instance:

		shutdown the database

		Edit your init.ora startup configuration file and ADD
		a line that reads:

			event="10231 trace name context forever, level 10"

		  Make sure this appears next to any other EVENT= lines in the
	 	  init.ora file.