坏块处理一
查看oracle incident 有
adrci> show incident -orderby CREATE_TIME desc -last 3
ADR Home = /u02/app/diag/tnslsnr/asm1/asm:
*************************************************************************
0 rows fetched
ADR Home = /u02/app/diag/asm/+asm/+ASM:
*************************************************************************
0 rows fetched
ADR Home = /u02/app/diag/rdbms/ora11g/ora11g:
*************************************************************************
INCIDENT_ID PROBLEM_KEY CREATE_TIME
-------------------- ----------------------------------------------------------- ----------------------------------------
43614 ORA 1578 2014-05-13 03:55:22.592000 +08:00
43613 ORA 1578 2014-05-13 03:55:16.843000 +08:00
43612 ORA 1578 2014-05-13 03:55:11.351000 +08:00
First 3 rows fetched (*** more available ***)
adrci> show incident -mode detail -p "incident_id=43614"
DR Home = /u02/app/diag/tnslsnr/asm1/asm:
*************************************************************************
0 rows fetched
<INCIDENT_INFO mode="detail">
<ADR_HOME name="/u02/app/diag/tnslsnr/asm1/asm">
ADR Home = /u02/app/diag/asm/+asm/+ASM:
*************************************************************************
0 rows fetched
</ADR_HOME>
<ADR_HOME name="/u02/app/diag/asm/+asm/+ASM">
ADR Home = /u02/app/diag/rdbms/ora11g/ora11g:
*************************************************************************
**********************************************************
INCIDENT INFO RECORD 1
**********************************************************
INCIDENT_ID 43614
STATUS ready
CREATE_TIME 2014-05-13 03:55:22.592000 +08:00
PROBLEM_ID 2
CLOSE_TIME <NULL>
FLOOD_CONTROLLED none
ERROR_FACILITY ORA
ERROR_NUMBER 1578
ERROR_ARG1 2
ERROR_ARG2 32903
ERROR_ARG3 <NULL>
ERROR_ARG4 <NULL>
ERROR_ARG5 <NULL>
ERROR_ARG6 <NULL>
ERROR_ARG7 <NULL>
ERROR_ARG8 <NULL>
ERROR_ARG9 <NULL>
ERROR_ARG10 <NULL>
ERROR_ARG11 <NULL>
ERROR_ARG12 <NULL>
SIGNALLING_COMPONENT CACHE_RCV
SIGNALLING_SUBCOMPONENT <NULL>
SUSPECT_COMPONENT <NULL>
SUSPECT_SUBCOMPONENT <NULL>
ECID <NULL>
IMPACTS 0
PROBLEM_KEY ORA 1578
FIRST_INCIDENT 11053
FIRSTINC_TIME 2014-02-12 08:26:46.733000 +08:00
LAST_INCIDENT 45042
LASTINC_TIME 2014-05-16 04:40:38.523000 +08:00
IMPACT1 34668552
IMPACT2 34668545
IMPACT3 0
IMPACT4 0
KEY_NAME Client ProcId
KEY_VALUE [email protected]_3077392064
KEY_NAME PQ
KEY_VALUE (16777220, 1399924521)
KEY_NAME ProcId
KEY_VALUE 37.1
KEY_NAME SID
KEY_VALUE 48.1
OWNER_ID 1
INCIDENT_FILE /u02/app/diag/rdbms/ora11g/ora11g/incident/incdir_43614/ora11g_j002_20238_i43614.trc
OWNER_ID 1
INCIDENT_FILE /u02/app/diag/rdbms/ora11g/ora11g/trace/ora11g_j002_20238.trc
1 rows fetched
tail -f /u02/app/diag/rdbms/ora11g/ora11g/trace/ora11g_j002_20238.trc
DDE rules only execution for: ORA 1110
----- START Event Driven Actions Dump ----
---- END Event Driven Actions Dump ----
----- START DDE Actions Dump -----
Executing SYNC actions
----- START DDE Action: 'DB_STRUCTURE_INTEGRITY_CHECK' (Async) -----
Successfully dispatched
----- END DDE Action: 'DB_STRUCTURE_INTEGRITY_CHECK' (SUCCESS, 0 csec) -----
Executing ASYNC actions
----- END DDE Actions Dump (total 0 csec) -----
Byte offset to file# 2 block# 32903 is 269541376
sskgds_getexecname: using /proc/self/status and $ORACLE_HOME/bin to get /u02/app/oracle/bin/oracle
*** 2014-05-13 03:54:57.771
Incident 43610 created, dump file: /u02/app/diag/rdbms/ora11g/ora11g/incident/incdir_43610/ora11g_j002_20238_i43610.trc
ORA-01578: ORACLE data block corrupted (file # 2, block # 32903)
ORA-01110: data file 2: '+DATA/ora11g/datafile/sysaux.257.832151447'
*** 2014-05-13 03:55:07.497
DDE: Problem Key 'ORA 1110' was flood controlled (0x1) (no incident)
ORA-01110: data file 2: '+DATA/ora11g/datafile/sysaux.257.832151447'
Byte offset to file# 2 block# 32903 is 269541376
*** 2014-05-13 03:55:08.166
Incident 43611 created, dump file: /u02/app/diag/rdbms/ora11g/ora11g/incident/incdir_43611/ora11g_j002_20238_i43611.trc
ORA-01578: ORACLE data block corrupted (file # 2, block # 32903)
ORA-01110: data file 2: '+DATA/ora11g/datafile/sysaux.257.832151447'
DDE: Problem Key 'ORA 1110' was flood controlled (0x1) (no incident)
ORA-01110: data file 2: '+DATA/ora11g/datafile/sysaux.257.832151447'
Byte offset to file# 2 block# 32903 is 269541376
Incident 43612 created, dump file: /u02/app/diag/rdbms/ora11g/ora11g/incident/incdir_43612/ora11g_j002_20238_i43612.trc
ORA-01578: ORACLE data block corrupted (file # 2, block # 32903)
ORA-01110: data file 2: '+DATA/ora11g/datafile/sysaux.257.832151447'
freeing in-flux r/w latch for process state: 34bcef84
... in-flux r/w latch 33aa83c8 Child cache buffers chains level=1 child#=959
Location from where latch is held: No latch:
Context saved from call: 0
state=busy(shared) [value=0x40000001] wlstate=free [value=0]
waiters [orapid (seconds since: put on list, posted, alive check)]:
12 (2, 1399924515, 2)
waiter count=1
DDE: Problem Key 'ORA 1110' was flood controlled (0x1) (no incident)
ORA-01110: data file 2: '+DATA/ora11g/datafile/sysaux.257.832151447'
Byte offset to file# 2 block# 32903 is 269541376
[/home/oracle]$ dbv file=+DATA/ora11g/datafile/sysaux.257.832151447 userid=sys/oracle
DBVERIFY: Release 11.2.0.1.0 - Production on Fri May 16 04:50:02 2014
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
DBVERIFY - Verification starting : FILE = +DATA/ora11g/datafile/sysaux.257.832151447
csc(0x0000.00b2c0bb) higher than block scn(0x0000.00000000)
Page 32903 failed with check code 6054
Page 32911 is marked corrupt
Corrupt block relative dba: 0x0080808f (file 2, block 32911)
Bad header found during dbv:
Data in bad block:
type: 11 format: 2 rdba: 0x00c00001
last change scn: 0x0000.00000000 seq: 0x1 flg: 0x04
spare1: 0x0 spare2: 0x0 spare3: 0x0
consistency value in tail: 0x00000b01
check value in block header: 0x242a
computed block checksum: 0x0
DBV-00200: Block, DBA 8421511, already marked corrupt
DBVERIFY - Verification complete
Total Pages Examined : 99080
Total Pages Processed (Data) : 31044
Total Pages Failing (Data) : 1
Total Pages Processed (Index): 27669
Total Pages Failing (Index): 0
Total Pages Processed (Lob) : 9356
Total Pages Failing (Lob) : 0
Total Pages Processed (Other): 17044
Total Pages Processed (Seg) : 0
Total Pages Failing (Seg) : 0
Total Pages Empty : 13966
Total Pages Marked Corrupt : 2
Total Pages Influx : 0
Total Pages Encrypted : 0
Highest block SCN : 0 (0.0)
找到坏块对象
SQL> select * from v$database_block_corruption;
FILE# BLOCK# BLOCKS CORRUPTION_CHANGE# CORRUPTIO
---------- ---------- ---------- ------------------ ---------
2 32911 1 0 FRACTURED
2 32903 1 0 FRACTURED
SQL> Select tablespace_name,segment_type,owner,segment_name From dba_extents Where file_id=2 andblock_id between 32911 and 32911+blocks-1;
TABLESPACE_NAME SEGMENT_TYPE OWNER
------------------------------ ------------------ ------------------------------
SEGMENT_NAME
--------------------------------------------------------------------------------
SYSAUX INDEX SYSMAN
MGMT_TARGETS_IDX_01
进行索引的重建
alter index MGMT_TARGETS_IDX_01 rebuild;
SQL> Select tablespace_name,segment_type,owner,segment_name From dba_extents Where file_id=2 andblock_id between 32911 and 32911+blocks-1;
no rows selected
dbv file=+DATA/ora11g/datafile/sysaux.257.832151447 userid=sys/oracle 有点慢
SQL> select tablespace_id,header_file, header_block from sys_dba_segs where segment_name = 'MGMT_TARGETS_IDX_01';
TABLESPACE_ID HEADER_FILE HEADER_BLOCK
------------- ----------- ------------
1 2 64394
dbv segment_id=1.2.64394 userid=sys/oracle
no rows selected
SQL> select * from v$database_block_corruption;
FILE# BLOCK# BLOCKS CORRUPTION_CHANGE# CORRUPTIO
---------- ---------- ---------- ------------------ ---------
2 32903 1 0 FRACTURED
32903不是在表上的坏块，也是在唯一索引上的，不是表上很难用DBMS_REPAIR去跳过修复，理想用备份，然后用rman blockrecover datafile x block xx
没有备份只能是BBED或者exp+10231
如果没有备份只能是
注：使用dbv工具检验数据文件是否有坏块
dbv工具可以用来验证数据文件的有效性，在数据库恢复之前可以使用该命令对备份文件进行有效性检查，
防止因备份文件本身的问题导致数据库无法恢复。
当然，dbv命令也可以对在线的数据文件进行检查。
注意，dbv工具只可以对数据文件进行检查，无法使用它完成控制文件和日志文件的检查。
1.dbv命令语法
dbverify ::=
dbv [ USERID=username/password ]
FILE = filename
| { START = block_address | END = block_address }
| BLOCKSIZE = integer
| HIGH_SCN = integer
| LOGFILE = filename
| FEEDBACK = integer
| HELP = { Y | N }
| PARFILE = filename
End of description.
参考自Oracle官方文档http://download.oracle.com/docs/cd/E11882_01/server.112/e10701/img_text/dbverify.htm
2.查看帮助文档
从语法定义中我们看到“HELP = { Y | N }”选项，我们可以使用它查看dbv的帮助信息。
ticket@secDB /home/oracle$ dbv help=y
DBVERIFY: Release 11.2.0.1.0 - Production on Wed Mar 31 19:47:36 2010
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
Keyword Description (Default)
----------------------------------------------------
FILE File to Verify (NONE)
START Start Block (First Block of File)
END End Block (Last Block of File)
BLOCKSIZE Logical Block Size (8192)
LOGFILE Output Log (NONE)
FEEDBACK Display Progress (0)
PARFILE Parameter File (NONE)
USERID Username/Password (NONE)
SEGMENT_ID Segment ID (tsn.relfile.block) (NONE)
HIGH_SCN Highest Block SCN To Verify (NONE)
(scn_wrap.scn_base OR scn)
帮助信息中描述了dbv命令的使用方法，不赘述。
3.体验dbv工具的效果
1）查看系统中的数据文件名称
sys@ticket> col name for a60
sys@ticket> select name from v$datafile;
NAME
------------------------------------------------------------
/oracle/ora11gR2/oradata/ticket/system01.dbf
/oracle/ora11gR2/oradata/ticket/sysaux01.dbf
/oracle/ora11gR2/oradata/ticket/undotbs01.dbf
/oracle/ora11gR2/oradata/ticket/users01.dbf
2）使用dbv工具对users01.dbf进行检查
（1）使用最简单的参数
sys@ticket> !dbv file=/oracle/ora11gR2/oradata/ticket/users01.dbf
DBVERIFY: Release 11.2.0.1.0 - Production on Wed Mar 31 19:50:59 2010
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
DBVERIFY - Verification starting : FILE = /oracle/ora11gR2/oradata/ticket/users01.dbf
DBVERIFY - Verification complete
Total Pages Examined : 35520
Total Pages Processed (Data) : 33029
Total Pages Failing (Data) : 0
Total Pages Processed (Index): 20
Total Pages Failing (Index): 0
Total Pages Processed (Other): 402
Total Pages Processed (Seg) : 0
Total Pages Failing (Seg) : 0
Total Pages Empty : 2069
Total Pages Marked Corrupt : 0
Total Pages Influx : 0
Total Pages Encrypted : 0
Highest block SCN : 9291961 (0.9291961)
在实际使用中重点关注以下信息：
Total Pages Failing (Data) : 0
Total Pages Failing (Index): 0
Total Pages Failing (Seg) : 0
Total Pages Marked Corrupt : 0
如果以上信息返回结果不为0，需要重点关注！及时排查原因。
（2）如果指定logfile参数，检查结果将只记录在日志文件中，屏幕上不显示
sys@ticket> !dbv file=/oracle/ora11gR2/oradata/ticket/users01.dbf logfile=dbv_users01.log
DBVERIFY: Release 11.2.0.1.0 - Production on Wed Mar 31 19:52:20 2010
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
此时可以使用SQL*Plus的edit命令查看生成的日志文件内容。
sys@ticket> ed dbv_users01.log