1.使用dbv检查

D:oradataeygle>dbv file=EYGLE.DBF blocksize=8192

DBVERIFY: Release10.1.0.4.0 - Production on星期六6月11 17:36:37 2005

Copyright (c) 1982, 2004, Oracle. All rights reserved.

DBVERIFY -开始验证: FILE = EYGLE.DBF

页219标记为损坏

Corrupt block relative dba: 0x010000db (file 4, block 219)

Bad check value found during dbv:

Data in bad block:

type: 6 format: 2 rdba: 0x010000db

last change scn: 0x0000.0005ee6d seq: 0x2 flg: 0x04

spare1: 0x0 spare2: 0x0 spare3: 0x0

consistency value in tail: 0xee6d0602

check value in block header: 0x9779

computed block checksum: 0x6141

页1258标记为损坏

Corrupt block relative dba: 0x010004ea (file 4, block 1258)

Bad check value found during dbv:

Data in bad block:

type: 6 format: 2 rdba: 0x010004ea

last change scn: 0x0000.00042681 seq: 0x2 flg: 0x06

spare1: 0x0 spare2: 0x0 spare3: 0x0

consistency value in tail: 0x26810602

check value in block header: 0x660b

computed block checksum: 0x9317

DBVERIFY -验证完成

检查的页总数: 1280

处理的页总数(数据): 150

失败的页总数(数据): 0

处理的页总数(索引): 127

失败的页总数(索引): 0

处理的页总数(其它):1001

处理的总页数(段) : 0

失败的总页数(段) : 0

空的页总数: 0

标记为损坏的总页数: 2

流入的页总数: 0

Highest block SCN : 428223 (0.428223)

2.使用RMAN检查坏块

D:oradataeygle>rman target /

恢复管理器:版本9.2.0.6.0 - Production

Copyright (c) 1995, 2002, Oracle Corporation. All rights reserved.

连接到目标数据库: EYGLE (DBID=1365961916)

RMAN> backup validate datafile 4;

启动backup于11-6月-05

正在使用目标数据库控制文件替代恢复目录

分配的通道: ORA_DISK_1

通道ORA_DISK_1: sid=17 devtype=DISK

通道ORA_DISK_1:正在启动full数据文件备份集

通道ORA_DISK_1:正在指定备份集中的数据文件

输入数据文件fno=00004 name=D:ORADATAEYGLEEYGLE.DBF

通道ORA_DISK_1:备份集已完成,经过时间:00:00:03

完成backup于11-6月-05

RMAN>

SQL> select * from v$database_block_corruption;

FILE# BLOCK# BLOCKS CORRUPTION_CHANGE# CORRUPTIO

---------- ---------- ---------- ------------------ ---------

4 219 1 0 FRACTURED

4 1258 1 0 FRACTURED