Oracle 11g 文件损坏处理

rman 备份时报以下错误:

RMAN-00571: ===========================================================

RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============

RMAN-00571: ===========================================================

RMAN-03002: failure of backup plus archivelog command at 08/20/2015 17:33:37

ORA-19566: exceeded limit of 0 corrupt blocks for file /app/oracle/oradata/orcl/system01.dbf

由报错信息可知  /app/oracle/oradata/orcl/system01.dbf 损坏

查找坏块:

[oracle@zhoux backup]$ dbv file=/app/oracle/oradata/orcl/system01.dbf

DBVERIFY: Release 11.2.0.1.0 - Production on Thu Aug 20 17:35:46 2015

Copyright (c) 1982, 2009, Oracle and/or its affiliates.  All rights reserved.

DBVERIFY - Verification starting : FILE = /app/oracle/oradata/orcl/system01.dbf

Page 72303 is marked corrupt

Corrupt block relative dba: 0x00411a6f (file 1, block 72303)

Bad check value found during dbv:

Data in bad block:

 type: 6 format: 2 rdba: 0x00411a6f

 last change scn: 0x0000.000bd526 seq: 0x1 flg: 0x06

 spare1: 0x0 spare2: 0x0 spare3: 0x0

 consistency value in tail: 0xd5260601

 check value in block header: 0x3388

 computed block checksum: 0x2000

使用SQL语句：

SELECT tablespace_name,segment_type,owner,segment_name FROM dba_extents WHERE file_id = 1 AND 72303 between block_id AND block_id+blocks-1;

找到错误的地方，根据情况处理问题．