RMAN深入解析之--BlockRecover恢复坏块
发表于：2024-09-22 作者：千家信息网编辑
千家信息网最后更新 2024年09月22日，RMAN深入解析之--BlockRecover恢复坏块案例环境：操作系统：RedHat EL5Oracle： Oracle 11gR2案例描述：通过块介质恢复（Block Media Recover:
千家信息网最后更新 2024年09月22日RMAN深入解析之--BlockRecover恢复坏块
RMAN深入解析之--BlockRecover恢复坏块
案例环境：
操作系统：RedHat EL5
Oracle： Oracle 11gR2
案例描述：
通过块介质恢复（Block Media Recover:BMR)执行块级别的恢复操作来修复Oracle数据库上的逻辑或物理上损坏的数据块。
1、模拟数据块被破坏
10:26:48 SYS@ prod>conn scott/tigerConnected.10:26:51 SCOTT@ prod>select * from tab;TNAME TABTYPE CLUSTERID------------------------------ ------- ----------BONUS TABLEDEPT TABLEEMP TABLEEMP1 TABLESALGRADE TABLEElapsed: 00:00:00.1010:26:55 SCOTT@ prod>10:27:37 SYS@ prod>desc dba_segments Name Null? Type ----------------------------------------------------------------- -------- ------------- OWNER VARCHAR2(30) SEGMENT_NAME VARCHAR2(81) PARTITION_NAME VARCHAR2(30) SEGMENT_TYPE VARCHAR2(18) SEGMENT_SUBTYPE VARCHAR2(10) TABLESPACE_NAME VARCHAR2(30) HEADER_FILE NUMBER HEADER_BLOCK NUMBER BYTES NUMBER BLOCKS NUMBER EXTENTS NUMBER INITIAL_EXTENT NUMBER NEXT_EXTENT NUMBER MIN_EXTENTS NUMBER MAX_EXTENTS NUMBER MAX_SIZE NUMBER RETENTION VARCHAR2(7) MINRETENTION NUMBER PCT_INCREASE NUMBER FREELISTS NUMBER FREELIST_GROUPS NUMBER RELATIVE_FNO NUMBER BUFFER_POOL VARCHAR2(7) FLASH_CACHE VARCHAR2(7) CELL_FLASH_CACHE VARCHAR2(7)10:27:41 SYS@ prod>col segment_name for a20 10:27:59 SYS@ prod>select owner,segment_name,SEGMENT_TYPE,HEADER_BLOCK from dba_segments 10:29:06 2 where owner='SCOTT' and segment_name='EMP1';OWNER SEGMENT_NAME SEGMENT_TYPE HEADER_BLOCK------------------------------ -------------------- ------------------ ------------SCOTT EMP1 TABLE 170
通过以上查询，可以知道EMP1 table的segment header block为170；利用Uedit32，打开数据文件（users01.dbf)进行编辑破坏！
以下是计算block 170和block 171在Uedit32编辑中的offset：
10:29:24 SYS@ prod>select to_char(170*8*1024, 'xxxxxxxxxxxxxxxxxxxxx') from dual;
TO_CHAR(170*8*1024,'XX
----------------------
154000
10:30:27 SYS@ prod>select to_char(171*8*1024, 'xxxxxxxxxxxxxxxxxxxxx') from dual;
TO_CHAR(171*8*1024,'XX
----------------------
156000
以下是Uedit32编辑users01.dbf图片：
通过转储数据块验证：
10:30:37 SYS@ prod>alter system dump datafile 4 block 170;
System altered.
[oracle@rh7 ~]$ ls -lt /u01/app/oracle/diag/rdbms/prod/prod/trace/|more
total 14300
-rw-r----- 1 oracle oinstall 4492 Jul 15 11:34 prod_ora_2883.trc-rw-r----- 1 oracle oinstall 69 Jul 15 11:34 prod_ora_2883.trm-rw-r----- 1 oracle oinstall 557756 Jul 15 10:17 alert_prod.log-rw-r----- 1 oracle oinstall 947 Jul 15 10:17 prod_ckpt_2541.trc-rw-r----- 1 oracle oinstall 59 Jul 15 10:17 prod_ckpt_2541.trm-rw-r----- 1 oracle oinstall 1783 Jul 15 10:12 prod_j000_2588.trc-rw-r----- 1 oracle oinstall 80 Jul 15 10:12 prod_j000_2588.trm
查看转储文件：
[oracle@rh7 ~]$ cat /u01/app/oracle/diag/rdbms/prod/prod/trace/prod_ora_2883.trc|more
Trace file /u01/app/oracle/diag/rdbms/prod/prod/trace/prod_ora_2883.trcOracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit ProductionWith the Partitioning, OLAP, Data Mining and Real Application Testing optionsORACLE_HOME = /u01/app/oracle/product/11.2.0/db_1System name: LinuxNode name: rh7Release: 2.6.32-358.el6.x86_64Version: #1 SMP Tue Jan 29 11:47:41 EST 2013Machine: x86_64Instance name: prodRedo thread mounted by this instance: 1Oracle process number: 26Unix process pid: 2883, p_w_picpath: oracle@rh7 (TNS V1-V3)*** 2014-07-15 11:34:50.092*** SESSION ID:(37.32) 2014-07-15 11:34:50.092*** CLIENT ID:() 2014-07-15 11:34:50.092*** SERVICE NAME:(SYS$USERS) 2014-07-15 11:34:50.092*** MODULE NAME:(sqlplus@rh7 (TNS V1-V3)) 2014-07-15 11:34:50.092*** ACTION NAME:() 2014-07-15 11:34:50.092 Start dump data blocks tsn: 4 file#:4 minblk 170 maxblk 170Block dump from cache:Dump of buffer cache at level 4 for tsn=4, rdba=16777386Block dump from disk:buffer tsn: 4 rdba: 0x010000aa (4/170)scn: 0x0000.001f891c seq: 0x02 flg: 0x04 tail: 0x891c2302frmt: 0x02 chkval: 0x8eee type: 0x23=PAGETABLE SEGMENT HEADERHex dump of block: st=0, typ_found=1Dump of memory from 0x00007F7DFC5C7A00 to 0x00007F7DFC5C9A00
7F7DFC5C7A00 0000A223 010000AA 001F891C 04020000 [#...............]
---此行内容与Uedit32打开内容一致
7F7DFC5C7A10 00008EEE 00000000 00000000 00000000 [................]7F7DFC5C7A20 00000000 00000001 00000008 00000A9C [................]7F7DFC5C7A30 00000000 00000008 00000008 010000B0 [................]7F7DFC5C7A40 00000000 00000000 00000000 00000008 [................]7F7DFC5C7A50 00000000 00000000 00000000 00000000 [................]7F7DFC5C7A60 00000008 00000008 010000B0 00000000 [................]7F7DFC5C7A70 00000000 00000000 00000008 010000A8 [................]7F7DFC5C7A80 010000A8 00000000 00000000 00000000 [................]7F7DFC5C7A90 00000000 00000000 00000000 00000000 [................] Repeat 3 times7F7DFC5C7AD0 00000001 00002000 00000000 00001434 [..... ......4...]7F7DFC5C7AE0 00000000 010000A9 00000001 010000A8 [................]7F7DFC5C7AF0 010000A9 00000000 00000000 00000000 [................]7F7DFC5C7B00 00000000 00000000 00000001 00000000 [................]7F7DFC5C7B10 0001257B 10000000 010000A8 00000008 [{%..............]7F7DFC5C7B20 00000000 00000000 00000000 00000000 [................] Repeat 152 times7F7DFC5C84B0 010000A8 010000AB 00000000 00000000 [................]7F7DFC5C84C0 00000000 00000000 00000000 00000000 [................] Repeat 151 times7F7DFC5C8E40 00000000 00000000 010000A9 00000000 [................]7F7DFC5C8E50 00000000 00000000 00000000 00000000 [................] Repeat 185 times7F7DFC5C99F0 00000000 00000000 00000000 891C2302 [.............#..] Extent Control Header ----------------------------------------------------------------- Extent Header:: spare1: 0 spare2: 0 #extents: 1 #blocks: 8 last map 0x00000000 #maps: 0 offset: 2716 Highwater:: 0x010000b0 ext#: 0 blk#: 8 ext size: 8 #blocks in seg. hdr's freelists: 0 #blocks below: 8 mapblk 0x00000000 offset: 0 Unlocked -------------------------------------------------------- Low HighWater Mark : Highwater:: 0x010000b0 ext#: 0 blk#: 8 ext size: 8 #blocks in seg. hdr's freelists: 0 #blocks below: 8 mapblk 0x00000000 offset: 0 Level 1 BMB for High HWM block: 0x010000a8 Level 1 BMB for Low HWM block: 0x010000a8 -------------------------------------------------------- Segment Type: 1 nl2: 1 blksz: 8192 fbsz: 0 L2 Array start offset: 0x00001434 First Level 3 BMB: 0x00000000 L2 Hint for inserts: 0x010000a9 Last Level 1 BMB: 0x010000a8 Last Level II BMB: 0x010000a9 Last Level III BMB: 0x00000000 Map Header:: next 0x00000000 #extents: 1 obj#: 75131 flag: 0x10000000 Inc # 0 Extent Map ----------------------------------------------------------------- 0x010000a8 length: 8 Auxillary Map -------------------------------------------------------- Extent 0 : L1 dba: 0x010000a8 Data dba: 0x010000ab -------------------------------------------------------- Second Level Bitmap block DBAs -------------------------------------------------------- DBA 1: 0x010000a9 End dump data blocks tsn: 4 file#: 4 minblk 170 maxblk 1702、将Uedit32（通过16进制编辑功能）编辑过的数据文件上传到数据库
13:59:58 SYS@ prod>alter system flush buffer_cache;
System altered.
读取数据出错：
14:00:05 SYS@ prod>select * from scott.emp1;select * from scott.emp1*ERROR at line 1:ORA-01578: ORACLE data block corrupted (file # 4, block # 170)ORA-01110: data file 4: '/u01/app/oracle/oradata/prod/users01.dbf'
验证数据文件：
[oracle@rh7 ~]$ dbv file=/u01/app/oracle/oradata/prod/users01.dbf blocksize=8192
DBVERIFY: Release 11.2.0.1.0 - Production on Tue Jul 15 13:59:41 2014Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.DBVERIFY - Verification starting : FILE = /u01/app/oracle/oradata/prod/users01.dbfPage 170 is marked corruptCorrupt block relative dba: 0x010000aa (file 4, block 170)Bad check value found during dbv: Data in bad block: type: 35 format: 2 rdba: 0x010000aa last change scn: 0x0000.001f891c seq: 0x2 flg: 0x04 spare1: 0x0 spare2: 0x0 spare3: 0x0 consistency value in tail: 0x891c2302 check value in block header: 0x8eee computed block checksum: 0x2020Page 171 is marked corruptCorrupt block relative dba: 0x010000ab (file 4, block 171)Bad header found during dbv: Data in bad block: type: 6 format: 2 rdba: 0x012020ab last change scn: 0x2020.201f890b seq: 0x2 flg: 0x04 spare1: 0x20 spare2: 0x20 spare3: 0x2020 consistency value in tail: 0x890b0602 check value in block header: 0xcf8b computed block checksum: 0x2e00Page 172 is marked corruptCorrupt block relative dba: 0x010000ac (file 4, block 172)Bad header found during dbv: Data in bad block: type: 6 format: 2 rdba: 0x012020ac last change scn: 0x2020.201f891c seq: 0x3 flg: 0x06 spare1: 0x20 spare2: 0x20 spare3: 0x2020 consistency value in tail: 0x891c0603 check value in block header: 0xa5b1 computed block checksum: 0x0Page 173 is marked corruptCorrupt block relative dba: 0x010000ad (file 4, block 173)Bad header found during dbv: Data in bad block: type: 6 format: 2 rdba: 0x012020ad last change scn: 0x2020.201f891c seq: 0x1 flg: 0x04 spare1: 0x20 spare2: 0x20 spare3: 0x2020 consistency value in tail: 0x891c0601 check value in block header: 0xf6ab computed block checksum: 0x2020Page 174 is marked corruptCorrupt block relative dba: 0x010000ae (file 4, block 174)Bad header found during dbv: Data in bad block: type: 6 format: 2 rdba: 0x012020ae last change scn: 0x2020.201f891c seq: 0x1 flg: 0x04 spare1: 0x20 spare2: 0x20 spare3: 0x2020 consistency value in tail: 0x891c0601 check value in block header: 0xcef0 computed block checksum: 0x20Page 175 is marked corruptCorrupt block relative dba: 0x010000af (file 4, block 175)Bad header found during dbv: Data in bad block: type: 6 format: 2 rdba: 0x012020af last change scn: 0x2020.201f891c seq: 0x1 flg: 0x04 spare1: 0x20 spare2: 0x20 spare3: 0x2020 consistency value in tail: 0x891c0601 check value in block header: 0x146a computed block checksum: 0x0Page 176 is marked corruptCorrupt block relative dba: 0x010000b0 (file 4, block 176)Bad header found during dbv: Data in bad block: type: 6 format: 2 rdba: 0x012020b0 last change scn: 0x2020.201e6219 seq: 0x1 flg: 0x04 spare1: 0x20 spare2: 0x20 spare3: 0x2020 consistency value in tail: 0x62190601 check value in block header: 0x2185 computed block checksum: 0x2020
DBVERIFY - Verification complete
Total Pages Examined : 12800
Total Pages Processed (Data) : 757
Total Pages Failing (Data) : 0
Total Pages Processed (Index): 2
Total Pages Failing (Index): 0
Total Pages Processed (Other): 12024
Total Pages Processed (Seg) : 0
Total Pages Failing (Seg) : 0
Total Pages Empty : 10
Total Pages Marked Corrupt : 7
Total Pages Influx : 0
Total Pages Encrypted : 0
Highest block SCN : 2066716 (0.2066716)
从以上验证结果看：总共有7个数据块（170-176）被破坏！
3、利用RMAN进行修复
[oracle@rh7 ~]$ rman target /
Recovery Manager: Release 11.2.0.1.0 - Production on Tue Jul 15 14:02:16 2014
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
connected to target database: PROD (DBID=239333010)
RMAN> list backup of database;
using target database control file instead of recovery catalogList of Backup Sets===================BS Key Type LV Size Device Type Elapsed Time Completion Time------- ---- -- ---------- ----------- ------------ ---------------17 Full 1.13G DISK 00:01:21 03-JUL-14 BP Key: 17 Status: AVAILABLE Compressed: NO Tag: TAG20140703T171545 Piece Name: /u01/app/oracle/product/11.2.0/db_1/dbs/0lpcfu61_1_1 List of Datafiles in backup set 17 File LV Type Ckp SCN Ckp Time Name ---- -- ---- ---------- --------- ---- 1 Full 2066885 03-JUL-14 /u01/app/oracle/oradata/prod/system01.dbf 2 Full 2066885 03-JUL-14 /u01/app/oracle/oradata/prod/sysaux01.dbf 3 Full 2066885 03-JUL-14 /u01/app/oracle/oradata/prod/undotbs1.dbf 4 Full 2066885 03-JUL-14 /u01/app/oracle/oradata/prod/users01.dbf 5 Full 2066885 03-JUL-14 /u01/app/oracle/oradata/prod/example01.dbf 6 Full 2066885 03-JUL-14 /u01/app/oracle/oradata/prod/tbs1.dbf 7 Full 2066885 03-JUL-14 /u01/app/oracle/oradata/prod/undotbs2.dbf 8 Full 2066885 03-JUL-14 /u01/app/oracle/oradata/prod/perftbs01.dbf
RMAN> blockrecover datafile 4 block 170,171,172,173,174,175,176;
Starting recover at 15-JUL-14using channel ORA_DISK_1channel ORA_DISK_1: restoring block(s)channel ORA_DISK_1: specifying block(s) to restore from backup setrestoring blocks of datafile 00004channel ORA_DISK_1: reading from backup piece /u01/app/oracle/product/11.2.0/db_1/dbs/0lpcfu61_1_1channel ORA_DISK_1: piece handle=/u01/app/oracle/product/11.2.0/db_1/dbs/0lpcfu61_1_1 tag=TAG20140703T171545channel ORA_DISK_1: restored block(s) from backup piece 1channel ORA_DISK_1: block restore complete, elapsed time: 00:00:01starting media recoverymedia recovery complete, elapsed time: 00:00:07Finished recover at 15-JUL-14
恢复完成，验证：
RMAN> backup validate database;
Starting backup at 15-JUL-14using channel ORA_DISK_1channel ORA_DISK_1: starting full datafile backup setchannel ORA_DISK_1: specifying datafile(s) in backup setinput datafile file number=00001 name=/u01/app/oracle/oradata/prod/system01.dbfinput datafile file number=00002 name=/u01/app/oracle/oradata/prod/sysaux01.dbfinput datafile file number=00008 name=/u01/app/oracle/oradata/prod/perftbs01.dbfinput datafile file number=00004 name=/u01/app/oracle/oradata/prod/users01.dbfinput datafile file number=00005 name=/u01/app/oracle/oradata/prod/example01.dbfinput datafile file number=00007 name=/u01/app/oracle/oradata/prod/undotbs2.dbfinput datafile file number=00006 name=/u01/app/oracle/oradata/prod/tbs1.dbfinput datafile file number=00003 name=/u01/app/oracle/oradata/prod/undotbs1.dbfchannel ORA_DISK_1: backup set complete, elapsed time: 00:00:45List of Datafiles=================File Status Marked Corrupt Empty Blocks Blocks Examined High SCN---- ------ -------------- ------------ --------------- ----------1 OK 0 13407 99852 2117516 File Name: /u01/app/oracle/oradata/prod/system01.dbf Block Type Blocks Failing Blocks Processed ---------- -------------- ---------------- Data 0 67302 Index 0 15344 Other 0 3787 File Status Marked Corrupt Empty Blocks Blocks Examined High SCN---- ------ -------------- ------------ --------------- ----------2 OK 0 17342 66627 2117514 File Name: /u01/app/oracle/oradata/prod/sysaux01.dbf Block Type Blocks Failing Blocks Processed ---------- -------------- ---------------- Data 0 11719 Index 0 7882 Other 0 29617 File Status Marked Corrupt Empty Blocks Blocks Examined High SCN---- ------ -------------- ------------ --------------- ----------3 OK 0 1 128 2056342 File Name: /u01/app/oracle/oradata/prod/undotbs1.dbf Block Type Blocks Failing Blocks Processed ---------- -------------- ---------------- Data 0 0 Index 0 0 Other 0 127 File Status Marked Corrupt Empty Blocks Blocks Examined High SCN---- ------ -------------- ------------ --------------- ----------4 OK 0 11873 12800 2066716 File Name: /u01/app/oracle/oradata/prod/users01.dbf Block Type Blocks Failing Blocks Processed ---------- -------------- ---------------- Data 0 763 Index 0 2 Other 0 162 File Status Marked Corrupt Empty Blocks Blocks Examined High SCN---- ------ -------------- ------------ --------------- ----------5 OK 0 1680 12804 1715036 File Name: /u01/app/oracle/oradata/prod/example01.dbf Block Type Blocks Failing Blocks Processed ---------- -------------- ---------------- Data 0 3987 Index 0 1132 Other 0 6001 File Status Marked Corrupt Empty Blocks Blocks Examined High SCN---- ------ -------------- ------------ --------------- ----------6 OK 0 2 1281 2051631 File Name: /u01/app/oracle/oradata/prod/tbs1.dbf Block Type Blocks Failing Blocks Processed ---------- -------------- ---------------- Data 0 1 Index 0 0 Other 0 1277 File Status Marked Corrupt Empty Blocks Blocks Examined High SCN---- ------ -------------- ------------ --------------- ----------7 OK 0 8833 12800 2117516 File Name: /u01/app/oracle/oradata/prod/undotbs2.dbf Block Type Blocks Failing Blocks Processed ---------- -------------- ---------------- Data 0 0 Index 0 0 Other 0 3967 File Status Marked Corrupt Empty Blocks Blocks Examined High SCN---- ------ -------------- ------------ --------------- ----------8 OK 0 23967 25600 2006072 File Name: /u01/app/oracle/oradata/prod/perftbs01.dbf Block Type Blocks Failing Blocks Processed ---------- -------------- ---------------- Data 0 867 Index 0 261 Other 0 505 channel ORA_DISK_1: starting full datafile backup setchannel ORA_DISK_1: specifying datafile(s) in backup setincluding current control file in backup setincluding current SPFILE in backup setchannel ORA_DISK_1: backup set complete, elapsed time: 00:00:01List of Control File and SPFILE===============================File Type Status Blocks Failing Blocks Examined------------ ------ -------------- ---------------SPFILE OK 0 2 Control File OK 0 594 Finished backup at 15-JUL-14
[oracle@rh7 ~]$ sqlplus '/as sysdba'SQL*Plus: Release 11.2.0.1.0 Production on Tue Jul 15 14:16:27 2014Copyright (c) 1982, 2009, Oracle. All rights reserved.Connected to:Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit ProductionWith the Partitioning, OLAP, Data Mining and Real Application Testing options14:16:27 SYS@ prod>select count(*) from scott.emp1; COUNT(*)---------- 28Elapsed: 00:00:00.0214:16:35 SYS@ prod>select * from scott.emp1; EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO---------- ---------- --------- ---------- --------- ---------- ---------- ---------- 7369 SMITH CLERK 7902 17-DEC-80 800 20 7499 ALLEN SALESMAN 7698 20-FEB-81 1600 300 30 7521 WARD SALESMAN 7698 22-FEB-81 1250 500 30 7566 JONES MANAGER 7839 02-APR-81 2975 20 7654 MARTIN SALESMAN 7698 28-SEP-81 1250 1400 30 7698 BLAKE MANAGER 7839 01-MAY-81 2850 30 7782 CLARK MANAGER 7839 09-JUN-81 2450 10 7788 SCOTT ANALYST 7566 19-APR-87 3000 20 7839 KING PRESIDENT 17-NOV-81 5000 10 7844 TURNER SALESMAN 7698 08-SEP-81 1500 0 30 7876 ADAMS CLERK 7788 23-MAY-87 1100 20 7900 JAMES CLERK 7698 03-DEC-81 950 30 7902 FORD ANALYST 7566 03-DEC-81 3000 20 7934 MILLER CLERK 7782 23-JAN-82 1300 10 7369 SMITH CLERK 7902 17-DEC-80 800 20 7499 ALLEN SALESMAN 7698 20-FEB-81 1600 300 30 7521 WARD SALESMAN 7698 22-FEB-81 1250 500 30 EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO---------- ---------- --------- ---------- --------- ---------- ---------- ---------- 7566 JONES MANAGER 7839 02-APR-81 2975 20 7654 MARTIN SALESMAN 7698 28-SEP-81 1250 1400 30 7698 BLAKE MANAGER 7839 01-MAY-81 2850 30 7782 CLARK MANAGER 7839 09-JUN-81 2450 10 7788 SCOTT ANALYST 7566 19-APR-87 3000 20 7839 KING PRESIDENT 17-NOV-81 5000 10 7844 TURNER SALESMAN 7698 08-SEP-81 1500 0 30 7876 ADAMS CLERK 7788 23-MAY-87 1100 20 7900 JAMES CLERK 7698 03-DEC-81 950 30 7902 FORD ANALYST 7566 03-DEC-81 3000 20 7934 MILLER CLERK 7782 23-JAN-82 1300 1028 rows selected.Elapsed: 00:00:00.07
读取数据成功！
[oracle@rh7 ~]$ dbv file=/u01/app/oracle/oradata/prod/users01.dbf blocksize=8192
DBVERIFY: Release 11.2.0.1.0 - Production on Tue Jul 15 14:17:22 2014Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.DBVERIFY - Verification starting : FILE = /u01/app/oracle/oradata/prod/users01.dbfDBVERIFY - Verification completeTotal Pages Examined : 12800Total Pages Processed (Data) : 763Total Pages Failing (Data) : 0Total Pages Processed (Index): 2Total Pages Failing (Index): 0Total Pages Processed (Other): 12025Total Pages Processed (Seg) : 0Total Pages Failing (Seg) : 0Total Pages Empty : 10Total Pages Marked Corrupt : 0Total Pages Influx : 0Total Pages Encrypted : 0Highest block SCN : 2066716 (0.2066716)[oracle@rh7 ~]$
4、查看告警日志信息
告警日志：
dbv校验生成的日志：
Reading datafile '/u01/app/oracle/oradata/prod/users01.dbf' for corruption at rdba: 0x010000aa (file 4, block 170)Reread (file 4, block 170) found same corrupt dataCorrupt Block Found TSN = 4, TSNAME = USERS RFN = 4, BLK = 170, RDBA = 16777386 OBJN = -1, OBJD = 75131, OBJECT = USERS, SUBOBJECT = SEGMENT OWNER = , SEGMENT TYPE = Temporary SegmentTue Jul 15 14:00:25 2014Trace dumping is performing id=[cdmp_20140715140025]Tue Jul 15 14:00:25 2014Errors in file /u01/app/oracle/diag/rdbms/prod/prod/trace/prod_m000_8954.trc (incident=121488):ORA-01578: ORACLE data block corrupted (file # 4, block # 170)ORA-01110: data file 4: '/u01/app/oracle/oradata/prod/users01.dbf'Hex dump of (file 4, block 176) in trace file /u01/app/oracle/diag/rdbms/prod/prod/incident/incdir_121443/prod_m000_8954_i121443_a.trcCorrupt block relative dba: 0x010000b0 (file 4, block 176)Bad header found during validationData in bad block: type: 6 format: 2 rdba: 0x012020b0 last change scn: 0x2020.201e6219 seq: 0x1 flg: 0x04 spare1: 0x20 spare2: 0x20 spare3: 0x2020 consistency value in tail: 0x62190601 check value in block header: 0x2185 computed block checksum: 0x2020Reread of blocknum=176, file=/u01/app/oracle/oradata/prod/users01.dbf. found same corrupt dataReread of blocknum=176, file=/u01/app/oracle/oradata/prod/users01.dbf. found same corrupt dataReread of blocknum=176, file=/u01/app/oracle/oradata/prod/users01.dbf. found same corrupt dataReread of blocknum=176, file=/u01/app/oracle/oradata/prod/users01.dbf. found same corrupt dataReread of blocknum=176, file=/u01/app/oracle/oradata/prod/users01.dbf. found same corrupt dataHex dump of (file 4, block 170) in trace file /u01/app/oracle/diag/rdbms/prod/prod/incident/incdir_121443/prod_m000_8954_i121443_a.trcCorrupt block relative dba: 0x010000aa (file 4, block 170)Bad check value found during buffer readData in bad block: type: 35 format: 2 rdba: 0x010000aa last change scn: 0x0000.001f891c seq: 0x2 flg: 0x04 spare1: 0x0 spare2: 0x0 spare3: 0x0 consistency value in tail: 0x891c2302 check value in block header: 0x8eee computed block checksum: 0x2020Reading datafile '/u01/app/oracle/oradata/prod/users01.dbf' for corruption at rdba: 0x010000aa (file 4, block 170)Reread (file 4, block 170) found same corrupt dataCorrupt Block Found TSN = 4, TSNAME = USERS RFN = 4, BLK = 170, RDBA = 16777386 OBJN = -1, OBJD = 75131, OBJECT = USERS, SUBOBJECT = SEGMENT OWNER = , SEGMENT TYPE = Temporary SegmentErrors in file /u01/app/oracle/diag/rdbms/prod/prod/trace/prod_m000_8954.trc (incident=121489):ORA-01578: ORACLE data block corrupted (file # 4, block # 170)ORA-01110: data file 4: '/u01/app/oracle/oradata/prod/users01.dbf'Checker run found 7 new persistent data failuresTue Jul 15 14:01:15 2014Sweep [inc][121489]: completedSweep [inc][121488]: completedSweep [inc][121487]: completedSweep [inc][121486]: completedSweep [inc][121485]: completedSweep [inc][121484]: completedSweep [inc][121483]: completedSweep [inc2][121486]: completedSweep [inc2][121485]: completedSweep [inc2][121484]: completedSweep [inc2][121483]: completedSweep [inc2][121443]: completedTue Jul 15 14:03:20 2014alter database recover datafile list clearCompleted: alter database recover datafile list clear
rman recovery的日志：
Started Block Media RecoveryMedia Recovery Log /dsk4/arch2/arch_1_17_851265252.logRecovery of Online Redo Log: Thread 1 Group 3 Seq 18 Reading mem 0 Mem# 0: /dsk1/oradata/prod/redo03a.log Mem# 1: /dsk2/oradata/prod/redo03b.logRecovery of Online Redo Log: Thread 1 Group 1 Seq 19 Reading mem 0 Mem# 0: /dsk1/oradata/prod/redo01a.log Mem# 1: /dsk2/oradata/prod/redo01b.logRecovery of Online Redo Log: Thread 1 Group 2 Seq 20 Reading mem 0 Mem# 0: /dsk1/oradata/prod/redo02a.log Mem# 1: /dsk2/oradata/prod/redo02b.logCompleted Block Media RecoveryTue Jul 15 14:10:26 2014alter database recover datafile list clearCompleted: alter database recover datafile list clearStarted Block Media RecoveryMedia Recovery Log /dsk4/arch2/arch_1_17_851265252.logRecovery of Online Redo Log: Thread 1 Group 3 Seq 18 Reading mem 0 Mem# 0: /dsk1/oradata/prod/redo03a.log Mem# 1: /dsk2/oradata/prod/redo03b.logRecovery of Online Redo Log: Thread 1 Group 1 Seq 19 Reading mem 0 Mem# 0: /dsk1/oradata/prod/redo01a.log Mem# 1: /dsk2/oradata/prod/redo01b.logRecovery of Online Redo Log: Thread 1 Group 2 Seq 20 Reading mem 0 Mem# 0: /dsk1/oradata/prod/redo02a.log Mem# 1: /dsk2/oradata/prod/redo02b.logCompleted Block Media RecoveryTue Jul 15 14:13:28 2014alter database recover datafile list clearCompleted: alter database recover datafile list clearStarted Block Media RecoveryMedia Recovery Log /dsk4/arch2/arch_1_17_851265252.logRecovery of Online Redo Log: Thread 1 Group 3 Seq 18 Reading mem 0 Mem# 0: /dsk1/oradata/prod/redo03a.log Mem# 1: /dsk2/oradata/prod/redo03b.logRecovery of Online Redo Log: Thread 1 Group 1 Seq 19 Reading mem 0 Mem# 0: /dsk1/oradata/prod/redo01a.log Mem# 1: /dsk2/oradata/prod/redo01b.logRecovery of Online Redo Log: Thread 1 Group 2 Seq 20 Reading mem 0 Mem# 0: /dsk1/oradata/prod/redo02a.log Mem# 1: /dsk2/oradata/prod/redo02b.logCompleted Block Media Recovery
@至此，数据块恢复完成！
数据
文件
日志
验证
内容
数据库
案例
一致
成功
操作系统
介质
信息
功能
图片
物理
环境
系统
级别
结果
至此
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