ORACLE 12C ASM 新特性:共享密码文件

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标题:ORACLE 12C ASM 新特性:共享密码文件

作者:惜分飞©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]

在ORACLE 12C之前大家都知道密码文件是存放在?/dbs或者?/database中,如果要修改修改sysdba权限的用户密码时候,会去修改密码文件,而在rac数据库的sys密码文件是存在各个节点中,这个时候修改sysdba权限的密码就需要在两个节点都要做同样的操作,而对于数据库来说本身是只要在一个节点上修改即可,因为密码是记录在user$中,就是因为密码文件非共享且在各个节点中都有,因此需要在各个节点均要执行修改密码命令,确保密码文件被正常修改。因为rac 密码文件非共享的机制存在,导致修改sysdba权限密码繁琐,有些时候甚至有节点忘记修改,导致需要使用密码文件操作数据库的时候不能正常进行,DG传输日志异常等故障。在ORACLE 12C中为了解决这个问题,引入了密码文件可以存入ASM新特性,从而使得密码文件存储在ASM中实现所有节点共享,从而解决该问题.
ASM存储密码文件前提条件 COMPATIBLE.ASM>= 12.1
查询ASM信息

SQL>  select * from v$version;
BANNER                                                                               CON_ID
-------------------------------------------------------------------------------- ----------
Oracle Database 12c Enterprise Edition Release 12.1.0.1.0 - 64bit Production              0
PL/SQL Release 12.1.0.1.0 - Production                                                    0
CORE    12.1.0.1.0      Production                                                        0
TNS for Linux: Version 12.1.0.1.0 - Production                                            0
NLSRTL Version 12.1.0.1.0 - Production                                                    0
SQL> select NAME,COMPATIBILITY from v$asm_diskgroup;
NAME                           COMPATIBILITY
------------------------------ ------------------------------------------------------------
DATA                           12.1.0.0.0

查询crs中关于db配置

[grid@xifenfei ~]$  srvctl config database -d cdb
Database unique name: cdb
Database name: cdb
Oracle home: /u01/app/oracle/product/12.1/db_1
Oracle user: oracle
Spfile: +DATA/cdb/spfilecdb.ora
Password file:
Domain:
Start options: open
Stop options: immediate
Database role: PRIMARY
Management policy: MANUAL
Database instance: cdb
Disk Groups: DATA
Services:

这里db的password file为空,即表示使用默认值,也就是为$ORACLE_HOME/dbs/orapwxifenfei

创建密码文件存储在ASM中

--创建db新密码文件
[oracle@xifenfei ~]$ orapwd file='+data/CDB/orapwdxifenfei' dbuniquename='cdb'
Enter password for SYS:
----输入sys用户密码
--创建asm新密码文件
orapwd file='+data/ASM/orapwasm' asm=y
----asm=y 表示创建的密码文件为asm的
--使用老密码文件创建db/asm新密码文件
orapwd input_file='/oraclegrid/dbs/orapwasm' file='+data/ASM/orapwasm' [asm=y]
----input_file 表示使用老的密码文件创建新的存储在ASM中的密码文件

查看ASM中密码文件

ASMCMD> showversion
ASM version         : 12.1.0.1.0
ASMCMD> pwd
+data/cdb
ASMCMD>  ls -l orapwdxifenfei
Type      Redund  Striped  Time             Sys  Name
PASSWORD  UNPROT  COARSE   MAY 31 19:00:00  N    orapwdxifenfei => +DATA/CDB/PASSWORD/pwdcdb.290.816897265

配置crs中password file项

[grid@xifenfei ~]$ srvctl modify database -db cdb -pwfile  +data/CDB/orapwdxifenfei

查询crs中关于db配置

[grid@xifenfei ~]$  srvctl config database -d cdb
Database unique name: cdb
Database name: cdb
Oracle home: /u01/app/oracle/product/12.1/db_1
Oracle user: oracle
Spfile: +DATA/cdb/spfilecdb.ora
Password file: +data/CDB/orapwdxifenfei
Domain:
Start options: open
Stop options: immediate
Database role: PRIMARY
Management policy: MANUAL
Database instance: cdb
Disk Groups: DATA
Services:

至此数据库启动使用密码ASM中的密码文件完成,补充说明,该方式配置在ASM中的密码文件,只能是通过crs方式启动db才会生效,如果手工使用sqlplus启动数据库不会使用该密码文件,还是使用默认密码文件。这里也就提醒大家操作规范:在RAC环境(包含单节点的GI环境)中,对数据库的启动关闭操作强烈建议使用crs相关命令来完成,而不推荐使用sqlplus命令

监控asm disk磁盘性能

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标题:监控asm disk磁盘性能

作者:惜分飞©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]

使用ASM的朋友估计都有一个困惑,ASM就是一个黑盒子,怎么才能够做到类似如裸设备或者文件系统一样,通过系统的命令(iostat)来监控其磁盘IO的运行性能.其实ORACLE在设计ASM的过程中,也就考虑到了这个需求,把磁盘相关的情况都记录到了ASM相关视图中v$asm_disk和v$asm_disk_stat(这两个视图功能相同,只是查询v$asm_disk需要每次访问磁盘头获取数据,v$asm_disk_stat是磁盘头存储在内存中的数据,查询v$asm_disk_stat对磁盘影响非常小),所以我们可以通过查询v$asm_disk_stat中的数据,然后做减法就可以获得asm disk某个时间段的磁盘io性能情况.ORACLE提供了相关工具叫做asmiostat用来监控,具体可以参考ASMIOSTAT Script to collect iostats for ASM disks [ID 437996.1]

确保TIMED_STATISTICS=TRUE
虽然是默认值,多检查无错,因为到该值为false之时READ_TIME/WRITE_TIME为0

[grid@xifenfei tmp]$ sqlplus / as sysdba
SQL*Plus: Release 12.1.0.1.0 Production on Fri Feb 1 08:29:01 2013
Copyright (c) 1982, 2013, Oracle.  All rights reserved.
Connected to:
Oracle Database 12c Enterprise Edition Release 12.1.0.1.0 - 64bit Production
With the Automatic Storage Management option
SQL> show parameter TIMED_STATISTICS
NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
timed_statistics                     boolean     TRUE

asmiostat使用

[grid@xifenfei tmp]$ ./asmiostat.sh help=y
Invalid parameter: <interval> must be > 0; <count> must be >= 0
./asmiostat.sh [-s ASM ORACLE_SID] [-h ASM ORACLE_HOME] [-g diskgroup] [<interval>] [<count>]
Output:
  DiskPath - Path to ASM disk
  DiskName - ASM disk name
  Gr       - ASM disk group number
  Dsk      - ASM disk number
  Reads    - Reads
  Writes   - Writes
  AvRdTm   - Average read time (in msec)
  AvWrTm   - Average write time (in msec)
  KBRd     - Kilobytes read
  KBWr     - Kilobytes written
  AvRdSz   - Average read size (in bytes)
  AvWrSz   - Average write size (in bytes)
  RdEr     - Read errors
  WrEr     - Write errors

相关值说明

  DiskPath - Path to ASM disk
  DiskName - ASM disk name
  Gr       - ASM disk group number
  Dsk      - ASM disk number
  Reads    - 指定时间内I/O读请求次数
  Writes   - 指定时间内I/O写请求次数
  AvRdTm   - 平均每次I/O读请求所需时间 (in msec)
  AvWrTm   - 平均每次I/O写请求所需时间 (in msec)
  KBRd     - 指定时间内读操作的量(KB)
  KBWr     - 指定时间内写操作的量(KB)
  AvRdSz   - 平均每次I/O读请求得到的数据量(B)
  AvWrSz   - 平均每次I/O写请求得到的数据量(B)
  RdEr     - 指定时间内I/O读请求错误次数
  WrEr     - 指定时间内I/O写请求错误次数

asmiostat效果展示

[grid@xifenfei tmp]$ ./asmiostat.sh -s $ORACLE_SID -h $ORACLE_HOME -g DATA 1 3
Date: Fri Feb  1 08:31:45 CST 2013    Interval: 1 secs    Disk Group: DATA
DiskPath - DiskName                      Gr Dsk    Reads   Writes AvRdTm AvWrTm     KBRd     KBWr  AvRdSz  AvWrSz RdEr WrEr
/dev/sdb - DATA_0000                      1   0        0        0    0.0    0.0        0        0       0       0    0    0
Date: Fri Feb  1 08:31:47 CST 2013    Interval: 1 secs    Disk Group: DATA
DiskPath - DiskName                      Gr Dsk    Reads   Writes AvRdTm AvWrTm     KBRd     KBWr  AvRdSz  AvWrSz RdEr WrEr
/dev/sdb - DATA_0000                      1   0        4        3    0.6 1006.1        0        0       0       0    0    0
Date: Fri Feb  1 08:31:49 CST 2013    Interval: 1 secs    Disk Group: DATA
DiskPath - DiskName                      Gr Dsk    Reads   Writes AvRdTm AvWrTm     KBRd     KBWr  AvRdSz  AvWrSz RdEr WrEr
/dev/sdb - DATA_0000                      1   0        8        2    1.3    1.5        0        0       0       0    0    0

asmiostat下载

ASM中磁盘组权限设置

联系:手机/微信(+86 17813235971) QQ(107644445)

标题:ASM中磁盘组权限设置

作者:惜分飞©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]

aix平台11gr2单库使用使用grid和oracle用户分别部署gi和db,在添加磁盘的时候,使用设置磁盘所属用户和组为grid与oinstall,设置权限为755.添加磁盘成功后,数据库直接crash.
asm添加磁盘操作

SQL>  alter diskgroup DATA add disk '/dev/rhdisk15'
NOTE: Assigning number (2,7) to disk (/dev/rhdisk15)
NOTE: requesting all-instance membership refresh for group=2
NOTE: initializing header on grp 2 disk DATA_0007
NOTE: requesting all-instance disk validation for group=2
Wed Apr 03 22:09:03 2013
NOTE: skipping rediscovery for group 2/0xa026f7ec (DATA) on local instance.
NOTE: requesting all-instance disk validation for group=2
NOTE: skipping rediscovery for group 2/0xa026f7ec (DATA) on local instance.
NOTE: initiating PST update: grp = 2
Wed Apr 03 22:09:03 2013
GMON updating group 2 at 21 for pid 17, osid 22610284
NOTE: PST update grp = 2 completed successfully
NOTE: membership refresh pending for group 2/0xa026f7ec (DATA)
GMON querying group 2 at 22 for pid 13, osid 20643916
NOTE: cache opening disk 7 of grp 2: DWDATAGRP_0007 path:/dev/rhdisk15
GMON querying group 2 at 23 for pid 13, osid 20643916
SUCCESS: refreshed membership for 2/0xa026f7ec (DATA)
NOTE: starting rebalance of group 2/0xa026f7ec (DATA) at power 1
SUCCESS:  alter diskgroup DATA add disk '/dev/rhdisk15'
Starting background process ARB0
Wed Apr 03 22:09:07 2013
ARB0 started with pid=22, OS id=14155890
NOTE: assigning ARB0 to group 2/0xa026f7ec (DATA) with 1 parallel I/O
NOTE: Attempting voting file refresh on diskgroup DATA
Wed Apr 03 22:09:19 2013
SQL>  alter diskgroup DATA add disk '/dev/rhdisk11'
Wed Apr 03 22:09:20 2013
NOTE: stopping process ARB0
NOTE: rebalance interrupted for group 2/0xa026f7ec (DATA)
NOTE: Assigning number (2,8) to disk (/dev/rhdisk11)
NOTE: requesting all-instance membership refresh for group=2
NOTE: initializing header on grp 2 disk DATA_0008
NOTE: requesting all-instance disk validation for group=2
NOTE: skipping rediscovery for group 2/0xa026f7ec (DATA) on local instance.
NOTE: requesting all-instance disk validation for group=2
NOTE: skipping rediscovery for group 2/0xa026f7ec (DATA) on local instance.
NOTE: initiating PST update: grp = 2
Wed Apr 03 22:09:23 2013
GMON updating group 2 at 24 for pid 17, osid 22610284
NOTE: PST update grp = 2 completed successfully
NOTE: membership refresh pending for group 2/0xa026f7ec (DATA)
GMON querying group 2 at 25 for pid 13, osid 20643916
NOTE: cache opening disk 8 of grp 2: DATA_0008 path:/dev/rhdisk11
GMON querying group 2 at 26 for pid 13, osid 20643916
SUCCESS: refreshed membership for 2/0xa026f7ec (DATA)
NOTE: starting rebalance of group 2/0xa026f7ec (DATA) at power 1
SUCCESS:  alter diskgroup DATA add disk '/dev/rhdisk11'
Starting background process ARB0
Wed Apr 03 22:09:26 2013
ARB0 started with pid=22, OS id=22872116
NOTE: assigning ARB0 to group 2/0xa026f7ec (DATA) with 1 parallel I/O
NOTE: Attempting voting file refresh on diskgroup DATA
Wed Apr 03 22:14:41 2013
NOTE: ASM client xifenfei:xifenfei disconnected unexpectedly.
NOTE: check client alert log.
NOTE: Trace records dumped in trace file /u01/diag/asm/+asm/+ASM/trace/+ASM_ora_15073468.trc
Wed Apr 03 22:16:53 2013
NOTE: client xifenfei:xifenfei registered, osid 20709378, mbr 0x0
Wed Apr 03 22:20:33 2013
NOTE: client xifenfei:xifenfei deregistered

这里可看到增加磁盘操作正常并且开始做rebalance,但是也看到关于client xifenfei异常断开连接(本质就是数据库crash)

crash时的alert日志

Wed Apr 03 22:00:00 2013
Setting Resource Manager plan SCHEDULER[0x318B]:DEFAULT_MAINTENANCE_PLAN via scheduler window
Setting Resource Manager plan DEFAULT_MAINTENANCE_PLAN via parameter
Wed Apr 03 22:00:00 2013
Starting background process VKRM
Wed Apr 03 22:00:00 2013
VKRM started with pid=31, OS id=22413426
Wed Apr 03 22:09:06 2013
ORA-15025: could not open disk "/dev/rhdisk15"
ORA-27041: unable to open file
IBM AIX RISC System/6000 Error: 13: Permission denied
Additional information: 11
Wed Apr 03 22:09:06 2013
SUCCESS: disk DATA_0007 (7.2092304189) added to diskgroup DATA
Wed Apr 03 22:09:26 2013
ORA-15025: could not open disk "/dev/rhdisk15"
ORA-27041: unable to open file
IBM AIX RISC System/6000 Error: 13: Permission denied
Additional information: 11
Wed Apr 03 22:09:26 2013
SUCCESS: disk DATA_0008 (8.2092304190) added to diskgroup DATA
Wed Apr 03 22:14:40 2013
Errors in file /oracle/diag/rdbms/xifenfei/xifenfei/trace/xifenfei_dbw0_17367438.trc:
ORA-15080: synchronous I/O operation to a disk failed
WARNING: failed to write mirror side 1 of virtual extent 1 logical extent 0 of file 261 in
group 2 on disk 7 allocation unit 464
KCF: read, write or open error, block=0x6a online=1
        file=1 '+DATA/xifenfei/datafile/system.261.788373447'
        error=15081 txt: ''
Errors in file /oracle/diag/rdbms/xifenfei/xifenfei/trace/xifenfei_dbw0_17367438.trc:
Errors in file /oracle/diag/rdbms/xifenfei/xifenfei/trace/xifenfei_dbw0_17367438.trc:
ORA-63999: data file suffered media failure
ORA-01114: IO error writing block to file 1 (block # 106)
ORA-01110: data file 1: '+DATA/xifenfei/datafile/system.261.788373447'
ORA-15081: failed to submit an I/O operation to a disk
ORA-15081: failed to submit an I/O operation to a disk
DBW0 (ospid: 17367438): terminating the instance due to error 63999

这里可以看到数据库异常crash是因为/dev/rhdisk15没有权限去操作该文件,导致dbw0进程异常,从而出现该数据库crash

尝试重启数据库(asm重启正常)

SQL> startup
ORACLE instance started.
Total System Global Area 1.2827E+10 bytes
Fixed Size                  2233480 bytes
Variable Size            1711278968 bytes
Database Buffers         1.1073E+10 bytes
Redo Buffers               40894464 bytes
Database mounted.
ORA-01113: file 1 needs media recovery
ORA-01110: data file 1: '+DATA/xifenfei/datafile/system.261.788373447'

这里提示file 1需要恢复,查看alert日志,出现以下错误

Completed: ALTER DATABASE   MOUNT
Wed Apr 03 22:17:02 2013
ALTER DATABASE OPEN
Errors in file /oracle/diag/rdbms/xifenfei/xifenfei/trace/xifenfei_ora_11534798.trc:
ORA-27041: unable to open file
IBM AIX RISC System/6000 Error: 13: Permission denied
Additional information: 3
Additional information: 4
Additional information: 4194306
WARNING: Write Failed. group:2 disk:8 AU:462 offset:16384 size:16384
Errors in file /oracle/diag/rdbms/xifenfei/xifenfei/trace/xifenfei_ora_11534798.trc:
ORA-15080: synchronous I/O operation to a disk failed
WARNING: failed to write mirror side 1 of virtual extent 0 logical extent 0 of file 261 in
group 2 on disk 8 allocation unit 462
Errors in file /oracle/diag/rdbms/xifenfei/xifenfei/trace/xifenfei_ora_11534798.trc:
ORA-27041: unable to open file
IBM AIX RISC System/6000 Error: 13: Permission denied
Additional information: 3
Additional information: 4
Additional information: 4194306
WARNING: Write Failed. group:2 disk:8 AU:690 offset:16384 size:16384
Errors in file /oracle/diag/rdbms/xifenfei/xifenfei/trace/xifenfei_ora_11534798.trc:
ORA-27041: unable to open file
IBM AIX RISC System/6000 Error: 13: Permission denied
Additional information: 3
Additional information: 4
Additional information: 4194306
WARNING: Write Failed. group:2 disk:8 AU:918 offset:16384 size:16384
Errors in file /oracle/diag/rdbms/xifenfei/xifenfei/trace/xifenfei_ora_11534798.trc:
ORA-15080: synchronous I/O operation to a disk failed
WARNING: failed to write mirror side 1 of virtual extent 0 logical extent 0 of file 263 in
group 2 on disk 8 allocation unit 918
Errors in file /oracle/diag/rdbms/xifenfei/xifenfei/trace/xifenfei_ora_11534798.trc:
ORA-15080: synchronous I/O operation to a disk failed
WARNING: failed to write mirror side 1 of virtual extent 0 logical extent 0 of file 262 in
group 2 on disk 8 allocation unit 690
Errors in file /oracle/diag/rdbms/xifenfei/xifenfei/trace/xifenfei_ora_11534798.trc:
ORA-01110: data file 3: '+DATA/xifenfei/datafile/undotbs1.263.788373475'
ORA-01114: IO error writing block to file 3 (block # 1)
ORA-15081: failed to submit an I/O operation to a disk
ORA-15081: failed to submit an I/O operation to a disk
Errors in file /oracle/diag/rdbms/xifenfei/xifenfei/trace/xifenfei_ora_11534798.trc:
ORA-01110: data file 2: '+DATA/xifenfei/datafile/sysaux.262.788373463'
ORA-01114: IO error writing block to file 2 (block # 1)
ORA-15081: failed to submit an I/O operation to a disk
ORA-15081: failed to submit an I/O operation to a disk

recover database 操作

SQL> recover database;
ORA-00283: recovery session canceled due to errors
ORA-01201: file 1 header failed to write correctly
Wed Apr 03 22:18:49 2013
ALTER DATABASE RECOVER  database
Media Recovery Start
 started logmerger process
Wed Apr 03 22:18:50 2013
Errors in file /oracle/diag/rdbms/xifenfei/xifenfei/trace/xifenfei_pr00_12714126.trc:
ORA-27041: unable to open file
IBM AIX RISC System/6000 Error: 13: Permission denied
Additional information: 3
Additional information: 4
Additional information: 4194306
WARNING: Write Failed. group:2 disk:8 AU:462 offset:16384 size:16384
Errors in file /oracle/diag/rdbms/xifenfei/xifenfei/trace/xifenfei_pr00_12714126.trc:
ORA-27041: unable to open file
IBM AIX RISC System/6000 Error: 13: Permission denied
Additional information: 3
Additional information: 4
Additional information: 4194306

依然是这里的提示依然是因为磁盘无读写权限从而出现数据库无法写数据文件问题,修改刚刚加入的磁盘文件权限问为660(4读2写1执行),表明与oinstall相同组的oracle用户对该磁盘也有读写权限.
这个事故是一个很简单,而且随着11g中asm使用grid和oracle用户的客户越来越多,相关的事故也越来越多,因为大多数使用人习惯直接给某个文件授权为755,而在这样的grid和oracle分开安装的系统中,将出现增加磁盘后,数据库crash,而且不能起来(因为oracle用户对磁盘只有读权限,无写权限),一种比较好的规范:在11gr2的asm系统中(grid和oracle用户),建议设置磁盘为grid.oinstall,权限设置为660

asmlib异常报ORA-00600[kfklLibFetchNext00]

联系:手机/微信(+86 17813235971) QQ(107644445)

标题:asmlib异常报ORA-00600[kfklLibFetchNext00]

作者:惜分飞©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]

一个朋友的历史库出现故障,在linux 4的平台上asm的10.2.0.1的单库,asm使用asmlib来处理。
asm不能正常mount磁盘组,可以看到asmdisk,alert日志报ORA-00600[kfklLibFetchNext00]
操作系统内核是:2.6.9-78
oracleasmlib是:2.0.2-1
asm磁盘组mount失败

--以前故障
SQL> ALTER DISKGROUP ALL MOUNT
Thu Sep  6 14:23:16 2012
NOTE: cache registered group DGARC number=1 incarn=0x2bf96274
NOTE: cache registered group DGDATA number=2 incarn=0x2c196275
NOTE: cache registered group DGSYS number=3 incarn=0x2c196276
Thu Sep  6 14:23:16 2012
Errors in file /opt/app/oracle/admin/+ASM/bdump/+asm_rbal_10204.trc:
ORA-15183: ASMLIB initialization error [driver/agent not installed]
Thu Sep  6 14:23:16 2012
Errors in file /opt/app/oracle/admin/+ASM/bdump/+asm_rbal_10204.trc:
ORA-15183: ASMLIB initialization error [/opt/oracle/extapi/64/asm/orcl/1/libasm.so]
ORA-15183: ASMLIB initialization error [driver/agent not installed]
Thu Sep  6 14:23:16 2012
ERROR: no PST quorum in group 1: required 2, found 0
Thu Sep  6 14:23:16 2012
NOTE: cache dismounting group 1/0x2BF96274 (DGARC)
NOTE: dbwr not being msg'd to dismount
ERROR: diskgroup DGARC was not mounted
Thu Sep  6 14:23:16 2012
ERROR: no PST quorum in group 2: required 2, found 0
Thu Sep  6 14:23:16 2012
NOTE: cache dismounting group 2/0x2C196275 (DGDATA)
NOTE: dbwr not being msg'd to dismount
ERROR: diskgroup DGDATA was not mounted
Thu Sep  6 14:23:16 2012
ERROR: no PST quorum in group 3: required 2, found 0
Thu Sep  6 14:23:16 2012
NOTE: cache dismounting group 3/0x2C196276 (DGSYS)
NOTE: dbwr not being msg'd to dismount
ERROR: diskgroup DGSYS was not mounted
--现在故障
Thu Jan 24 13:49:45 2013
SQL> ALTER DISKGROUP ALL MOUNT
Thu Jan 24 13:49:45 2013
NOTE: cache registered group DGARC number=1 incarn=0xf388cee9
NOTE: cache registered group DGDATA number=2 incarn=0xf3a8ceea
NOTE: cache registered group DGSYS number=3 incarn=0xf3a8ceeb
Thu Jan 24 13:49:45 2013
Errors in file /opt/app/oracle/admin/+ASM/bdump/+asm_rbal_13449.trc:
ORA-00600: internal error code, arguments: [kfklLibFetchNext00],
[18446744073709551614], [0], [], [], [], [], []
Thu Jan 24 13:49:46 2013
Errors in file /opt/app/oracle/admin/+ASM/bdump/+asm_rbal_13449.trc:
ORA-00600: internal error code, arguments: [kfklLibFetchNext00],
[18446744073709551614], [0], [], [], [], [], []
Thu Jan 24 13:49:46 2013
ERROR: no PST quorum in group 1: required 2, found 0
Thu Jan 24 13:49:46 2013
NOTE: cache dismounting group 1/0xF388CEE9 (DGARC)
NOTE: dbwr not being msg'd to dismount
ERROR: diskgroup DGARC was not mounted
Thu Jan 24 13:49:46 2013
ERROR: no PST quorum in group 2: required 2, found 0
Thu Jan 24 13:49:46 2013
NOTE: cache dismounting group 2/0xF3A8CEEA (DGDATA)
NOTE: dbwr not being msg'd to dismount
ERROR: diskgroup DGDATA was not mounted
Thu Jan 24 13:49:46 2013
ERROR: no PST quorum in group 3: required 2, found 0
Thu Jan 24 13:49:46 2013
NOTE: cache dismounting group 3/0xF3A8CEEB (DGSYS)
NOTE: dbwr not being msg'd to dismount
ERROR: diskgroup DGSYS was not mounted
Shutting down instance: further logons disabled

trace文件信息

----- Call Stack Trace -----
calling              call     entry                argument values in hex
location             type     point                (? means dubious value)
-------------------- -------- -------------------- ----------------------------
ksedst()+31          call     ksedst1()            000000000 ? 000000001 ?
                                                   000000000 ? 000000000 ?
                                                   000000000 ? 000000001 ?
ksedmp()+610         call     ksedst()             000000000 ? 000000001 ?
                                                   000000000 ? 000000000 ?
                                                   000000000 ? 000000001 ?
ksfdmp()+21          call     ksedmp()             000000003 ? 000000001 ?
                                                   000000000 ? 000000000 ?
                                                   000000000 ? 000000001 ?
kgerinv()+161        call     ksfdmp()             000000003 ? 000000001 ?
                                                   000000000 ? 000000000 ?
                                                   000000000 ? 000000001 ?
kgesinv()+33         call     kgerinv()            006469D40 ? 0064E1C58 ?
                                                   000000000 ? 000000000 ?
                                                   000000001 ? 000000001 ?
kgesinw()+166        call     kgesinv()            006469D40 ? 0064E1C58 ?
                                                   000000000 ? 000000000 ?
                                                   000000001 ? 000000001 ?
kfklLibScanNext()+2  call     kgesinw()            006469D40 ? 000000000 ?
39                                                 000000001 ? 000000000 ?
                                                   FFFFFFFFFFFFFFFE ?
                                                   000000000 ?
kfkLibFetchNext()+3  call     kfklLibScanNext()    0064DDD70 ? 7FBFFFDCD0 ?
43                                                 000000001 ? 000000000 ?
                                                   FFFFFFFFFFFFFFFE ?
                                                   000000000 ?
kfuitrnInit()+524    call     kfkLibFetchNext()    006469D40 ? 2A971DFF90 ?
                                                   000000001 ? 000000000 ?
                                                   FFFFFFFFFFFFFFFE ?
                                                   000000000 ?
kfkLibIterInit()+18  call     kfuitrnInit()        006469D40 ? 2A971DFCB0 ?
0                                                  2A971DFF90 ? 000000009 ?
                                                   000000009 ? 000000000 ?
kfkLoadAllLibs()+36  call     kfkLibIterInit()     000000000 ? 00646C7E0 ?
3                                                  2A971DFF90 ? 000000009 ?
                                                   000000009 ? 000000000 ?
kfkDiscoverString()  call     kfkLoadAllLibs()     000000000 ? 00646C7E0 ?
+107                                               2A971DFF90 ? 000000009 ?
                                                   000000009 ? 000000000 ?
Cannot find symbol
Cannot find symbol
Cannot find symbol
kfdDiscoverString()  call     kfkDiscoverString()  067A53768 ? 00646C7E0 ?
+28                                                2A971DFF90 ? 000000009 ?
                                                   000000009 ? 000000000 ?
kfdDiscoverShallow(  call     kfdDiscoverString()  067A53768 ? 000000000 ?
)+315                                              2A971DFF90 ? 000000009 ?
                                                   000000009 ? 000000000 ?
kfgbDriver()+1174    call     kfdDiscoverShallow(  000000180 ? 000000000 ?
                              )                    2A971DFF90 ? 000000009 ?
                                                   000000009 ? 000000000 ?
ksbabs()+564         call     kfgbDriver()         7FBFFFE5C0 ? 000000048 ?
                                                   000000000 ? 000000009 ?
                                                   000000009 ? 000000000 ?
ksbrdp()+727         call     ksbabs()             7FBFFFE5C0 ? 000000048 ?
                                                   000000000 ? 000000009 ?
                                                   000000009 ? 000000000 ?
opirip()+616         call     ksbrdp()             7FBFFFE5C0 ? 000000048 ?
                                                   000000001 ? 06002C770 ?
                                                   000000009 ? 000000000 ?
opidrv()+582         call     opirip()             000000032 ? 000000004 ?
                                                   7FBFFFF6C8 ? 06002C770 ?
                                                   000000009 ? 000000000 ?
sou2o()+114          call     opidrv()             000000032 ? 000000004 ?
                                                   7FBFFFF6C8 ? 06002C770 ?
                                                   000000009 ? 000000000 ?
opimai_real()+317    call     sou2o()              7FBFFFF6A0 ? 000000032 ?
                                                   000000004 ? 7FBFFFF6C8 ?
                                                   000000009 ? 000000000 ?
main()+116           call     opimai_real()        000000003 ? 7FBFFFF730 ?
                                                   000000004 ? 7FBFFFF6C8 ?
                                                   000000009 ? 000000000 ?
<0x3c9fb1c40b>       call     main()               000000003 ? 7FBFFFF730 ?
                                                   000000004 ? 7FBFFFF6C8 ?
                                                   000000009 ? 000000000 ?
--------------------- Binary Stack Dump ---------------------

因为客户的库是一个历史库,基本上不怎么使用,在2012年启动asm就出现了ORA-15183错误,然后在2013年重启机器后,再次启动asm就出现了ORA-00600[kfklLibFetchNext00]错误,通过2012年的错误提示,我们大概可以判断出来该问题和ASMLIB有关系,查询mos发现429945.1,发现Call Stack Trace完全一致,可以定位是该问题(如果想深入分析,可以通过strace继续分析)

ORA-600: [kfklLibFetchNext00], [18446744073709551614], [0] when mounting diskgroup in ASM

Applies to:
Linux OS - Version: 2.0.1-1 and later   [Release: RHEL4 and later ]
Information in this document applies to any platform.
Linux Kernel - Version: 2.0.1
Symptoms
 3 RAC db.
2 nodes are up and functioning except for 1 node - ASM did not come back up after
the reboot eventhough all disks show available from asmlib's perspective:
Changes
 All that was done with resources were stopped on Node1 and an extra LUN added.
 A reboot was then performed.
Cause
 The cause of the issue is libasm.o corruption
Ran the following to confirm that disks are ok:
/dev/oracleasm listdisks
/usr/sbin/asmtool -I -l /dev/oracleasm -n /dev/sdg1 -a label
/usr/sbin/oracleasm-discover 'ORCL:*'
dd if=/dev/sdg1 bs=8192 count=1 | od -c
==> output checked out fine
.
kfod asm_diskstring='ORCL:*'
==> this failed on Node1
KFOD-00600: file not found; argument [610][kfklLibFetchNext00] even though libasm.o exists
You might see the following call stack as well
----- Call Stack Trace -----
kfklLibScanNext
kfkLibFetchNext
kfuitrnInit
kfkLibIterInit
kfkLoadAllLibs
kfkDiscoverString
kfdDiscoverString
kfdDiscoverShallow
kfgbDriver
strace showed
 Node1-failing
-------
stat("/opt/oracle/extapi/64/asm/orcl/1/libasm.so", {st_mode=S_IFREG|0777, st_size=19344, ...}) = 0
 getdents64(4, /* 0 entries */, 4096) = 0 <<<<
 close(4) = 0
 open("/opt/oracle/product/10.2.0/db_1/rdbms/mesg/kfodus.msb", O_RDONLY) = -1
 ENOENT (No such file or directory)
 open("/opt/oracle/product/10.2.0/db_1/rdbms/mesg/kfodus.msb", O_RDONLY) = -1
 ENOENT (No such file or directory)
 fstat(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 2), ...}) = 0
 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2a9750d000
write(1, "KFOD-00600: file not found; argu"..., 69) = 69
Node2-working
 -----
 stat("/opt/oracle/extapi/64/asm/orcl/1/libasm.so", {st_mode=S_IFREG|0755, st_size=19344, ...}) = 0
 open("/opt/oracle/extapi/64/asm/orcl/1/libasm.so", O_RDONLY) = 4
read(4, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\20\23\0"..., 832) = 832
fstat(4, {st_mode=S_IFREG|0755, st_size=19344, ...}) = 0
mmap(NULL, 1066104, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) 0x2a9750d000

通过MOS的描述,可以明确定位到问题是:libasm.o异常导致

解决方案

To implement the solution, reinstall the ASMlib RPM
>rpm -Uvh oracleasmlib-2.0.0-1
This replaces the /opt/oracle/extapi/64/asm/orcl/1/libasm.so

How to Get the Contents of an Spfile on ASM when ASM/GRID is down

联系:手机/微信(+86 17813235971) QQ(107644445)

标题:How to Get the Contents of an Spfile on ASM when ASM/GRID is down

作者:惜分飞©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]

在11g中asm的spfile文件是存放在asm中的,如果asm不能正常启动是否可以获得其spfile信息.这里通过gpnptool来获得spfile文件信息,给大家提供了在11gr2的rac是怎么利用asm 中的spfile启动asm的思路
asm spfile信息

[grid@rac1 ~]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Fri Dec 21 01:41:31 2012
Copyright (c) 1982, 2011, Oracle.  All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production
With the Real Application Clusters and Automatic Storage Management options
SQL> create pfile='/tmp/pfile' from spfile;
File created.
SQL> !more /tmp/pfile
+ASM1.__oracle_base='/u01/app/gridbase'#ORACLE_BASE set from in memory value
+ASM2.asm_diskgroups='XIFENFEI'#Manual Mount
+ASM1.asm_diskgroups='XIFENFEI'#Manual Mount
*.asm_diskstring='/dev/oracleasm/disks/*'
*.asm_power_limit=1
*.diagnostic_dest='/u01/app/gridbase'
*.instance_type='asm'
*.large_pool_size=12M
*.remote_login_passwordfile='EXCLUSIVE'

关闭集群(asm已关闭)

[root@rac1 ~]# crsctl stop crs
[root@rac1 ~]# ps -ef|grep pmon
root      8768  6372  0 02:53 pts/1    00:00:00 grep pmon
[root@rac1 ~]# crsctl stat res
CRS-4535: Cannot communicate with Cluster Ready Services
CRS-4000: Command Status failed, or completed with errors.

gpnptool命令获取asm disk信息

[root@rac1 ~]# gpnptool get -o-
<?xml version="1.0" encoding="UTF-8"?>
<gpnp:GPnP-Profile Version="1.0" xmlns="http://www.grid-pnp.org/2005/11/gpnp-profile"
xmlns:gpnp="http://www.grid-pnp.org/2005/11/gpnp-profile"
xmlns:orcl="http://www.oracle.com/gpnp/2005/11/gpnp-profile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.grid-pnp.org/2005/11/gpnp-profile gpnp-profile.xsd" ProfileSequence="4"
ClusterUId="885339054e904f1dbfa646b41d7a0edb" ClusterName="rac-cluster" PALocation="">
<gpnp:Network-Profile>
<gpnp:HostNetwork id="gen" HostName="*">
<gpnp:Network id="net1" IP="192.168.1.0" Adapter="eth0" Use="public"/>
<gpnp:Network id="net2" IP="10.10.1.0" Adapter="eth1" Use="cluster_interconnect"/>
</gpnp:HostNetwork>
</gpnp:Network-Profile>
<orcl:CSS-Profile id="css" DiscoveryString="+asm" LeaseDuration="400"/>
--重点关注信息(asm disk 信息)
<orcl:ASM-Profile id="asm" DiscoveryString="/dev/oracleasm/disks/*"
SPFile="+DATA/rac-cluster/asmparameterfile/registry.253.776955291"/>
<ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
<ds:SignedInfo>
<ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
<ds:SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/>
<ds:Reference URI="">
<ds:Transforms><ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/>
<ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#">
<InclusiveNamespaces xmlns="http://www.w3.org/2001/10/xml-exc-c14n#" PrefixList="gpnp orcl xsi"/>
</ds:Transform></ds:Transforms><ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
<ds:DigestValue>T2Q3r+5sER2Rp0VfeqzYh461f2s=</ds:DigestValue>
</ds:Reference>
</ds:SignedInfo>
<ds:SignatureValue>
LwcQEtlsPGfywzdYJrOqiTp4cZNFGB/S9Ts8OCvYOGf/Z8HDT2yN5p2nCuxArUfW+KzaPzPHHihpRVaTcAY31nJ2Rcf2vMqYp4e++shliQXC8mg
1oGxQGifkjZwA4pTTEK5MBmr4FTZnR3VArZjjVfJdsmOMfyH4YeSMU5HPjdA=
</ds:SignatureValue>
</ds:Signature>
</gpnp:GPnP-Profile>
Success.
Error CLSGPNP_NO_DAEMON getting profile.

获得asm spfile信息
通过kfed找磁盘中的kfdhdb.sp|ausize来获得asm spfile相关信息

[root@rac1 ~]# ls /dev/oracleasm/disks/
VOL1  VOL2  VOL3  VOL4
[root@rac1 ~]# kfed dev=/dev/oracleasm/disks/VOL1 op=READ | egrep "kfdhdb.sp|ausize"
kfdhdb.ausize:                  1048576 ; 0x0bc: 0x00100000
kfdhdb.spfile:                       22 ; 0x0f4: 0x00000016
kfdhdb.spfflg:                        1 ; 0x0f8: 0x00000001
[root@rac1 ~]# kfed dev=/dev/oracleasm/disks/VOL2 op=READ | egrep "kfdhdb.sp|ausize"
kfdhdb.ausize:                  1048576 ; 0x0bc: 0x00100000
kfdhdb.spfile:                        0 ; 0x0f4: 0x00000000
kfdhdb.spfflg:                        0 ; 0x0f8: 0x00000000
[root@rac1 ~]# kfed dev=/dev/oracleasm/disks/VOL3 op=READ | egrep "kfdhdb.sp|ausize"
kfdhdb.ausize:                  1048576 ; 0x0bc: 0x00100000
kfdhdb.spfile:                        0 ; 0x0f4: 0x00000000
kfdhdb.spfflg:                        0 ; 0x0f8: 0x00000000
[root@rac1 ~]# kfed dev=/dev/oracleasm/disks/VOL4 op=READ | egrep "kfdhdb.sp|ausize"
kfdhdb.ausize:                  1048576 ; 0x0bc: 0x00100000
kfdhdb.spfile:                        0 ; 0x0f4: 0x00000000
kfdhdb.spfflg:                        0 ; 0x0f8: 0x00000000

这里可以看出来asm spfile信息在磁盘VOL1中,spfile从第22个au开始,1个au(1M).

获得asm spfile 内容

[root@rac1 ~]# dd if=/dev/oracleasm/disks/VOL1 bs=1M skip=22 count=1 > /tmp/spfile
1+0 records in
1+0 records out
1048576 bytes (1.0 MB) copied, 1.47474 seconds, 711 kB/s
[root@rac1 ~]# strings /tmp/spfile
+ASM1.__oracle_base='/u01/app/gridbase'#ORACLE_BASE set from in memory value
+ASM2.asm_diskgroups='XIFENFEI'#Manual Mount
+ASM1.asm_diskgroups='XIFENFEI'#Manual Mount
*.asm_diskstring='/dev/oracleasm/disks/*'
*.asm_power_limit=1
*.diagnostic_dest='/u01/app/gridbase'
*.instance_type='asm'
*.large_pool_size=12M
*.remote_login_passwordfile='EXCLUSIVE'

通过对比发现,在asm实例未正常启动的情况下,也可以通过其他方面来获得asm spfile文件.本实验只是对于spfile在asm中位置的定位(大家去猜测11gr2的rac是怎么利用asm 中的spfile启动asm的思路),实际生产环境中请勿模仿,gpnptool命令有较大风险

使用asm disk header 自动备份信息恢复异常asm disk header

联系:手机/微信(+86 17813235971) QQ(107644445)

标题:使用asm disk header 自动备份信息恢复异常asm disk header

作者:惜分飞©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]

通过参考kamus的Where is the backup of ASM disk header block,发现从10.2.0.5开始的asm确实存在自动备份asm disk header功能.有了这个功能对于那些不备份asm disk header的同学,提供了一层保证,也增加了asm的安全性.
对于10.2.0.5.0以及以后版本,不管au size是多少,asm disk header自动备份存储的位置是第2个au的倒数第2个block.
计算方法:AU中包含的block num[AU_SIZE/block_size]*2-2[因为从第一个块从0计数],通过该方法计算结论为:
1M AU在510
2M AU在1022
4M AU在2046
8M AU在4094
16M AU在8190
32M AU在16382
64M AU在32766
1.对比备份asm disk header

SQL> select * from v$version;
BANNER
----------------------------------------------------------------
Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - Prod
PL/SQL Release 10.2.0.5.0 - Production
CORE    10.2.0.5.0      Production
TNS for Linux: Version 10.2.0.5.0 - Production
NLSRTL Version 10.2.0.5.0 - Production
SQL> select to_char(sysdate,'yyyy-mm-dd hh24:mi:ss') "xifenfei.com"  from dual;
xifenfei.com
-------------------
2012-06-17 09:41:19
SQL>  select group_number,DISK_NUMBER,PATH,HEADER_STATUS
   2  from v$asm_disk where group_number<>0;
GROUP_NUMBER DISK_NUMBER PATH            HEADER_STATU
------------ ----------- --------------- ------------
           1           1 /dev/raw/raw2   MEMBER
           1           0 /dev/raw/raw1   MEMBER
SQL> select group_number,name,BLOCK_SIZE,ALLOCATION_UNIT_SIZE from v$asm_diskgroup;
GROUP_NUMBER NAME                           BLOCK_SIZE ALLOCATION_UNIT_SIZE
------------ ------------------------------ ---------- --------------------
           1 DATA                                 4096              1048576
rac1->  kfed read /dev/raw/raw1 blknum=510|>/tmp/xifenfei.510
rac1->  kfed read /dev/raw/raw1 blknum=0|>/tmp/xifenfei.0
rac1-> ll /tmp/xifenfei*
-rw-r--r--  1 oracle oinstall 6606 Jun 14 04:11 /tmp/xifenfei.0
-rw-r--r--  1 oracle oinstall 6606 Jun 14 04:12 /tmp/xifenfei.510
rac1-> diff /tmp/xifenfei.510 /tmp/xifenfei.0
--通过对比发现两者无不同记录返回,证明他们记录内容完全相同

2.尝试破坏asm disk header

rac1-> dd if=/dev/zero of=/dev/raw/raw1 bs=4096 count=1
1+0 records in
1+0 records out
rac1->  kfed read /dev/raw/raw1 blknum=0
kfbh.endian:                          0 ; 0x000: 0x00
kfbh.hard:                            0 ; 0x001: 0x00
kfbh.type:                            0 ; 0x002: KFBTYP_INVALID
kfbh.datfmt:                          0 ; 0x003: 0x00
kfbh.block.blk:                       0 ; 0x004: T=0 NUMB=0x0
kfbh.block.obj:                       0 ; 0x008: TYPE=0x0 NUMB=0x0
kfbh.check:                           0 ; 0x00c: 0x00000000
kfbh.fcn.base:                        0 ; 0x010: 0x00000000
kfbh.fcn.wrap:                        0 ; 0x014: 0x00000000
kfbh.spare1:                          0 ; 0x018: 0x00000000
kfbh.spare2:                          0 ; 0x01c: 0x00000000
SQL> select group_number,DISK_NUMBER,PATH,HEADER_STATUS
   2 from v$asm_disk where group_number<>0;
GROUP_NUMBER DISK_NUMBER PATH            HEADER_STATU
------------ ----------- --------------- ------------
           1           1 /dev/raw/raw2   MEMBER
           1           0 /dev/raw/raw1   CANDIDATE
SQL> alter diskgroup  data dismount;
Diskgroup altered.
SQL> alter diskgroup  data mount;
alter diskgroup  data mount
*
ERROR at line 1:
ORA-15032: not all alterations performed
ORA-15063: ASM discovered an insufficient number of disks for diskgroup "DATA"

3.使用kfed repair修改损坏asm disk header

rac1-> kfed  repair '/dev/raw/raw1'
rac1->  kfed read /dev/raw/raw1 blknum=0
kfbh.endian:                          1 ; 0x000: 0x01
kfbh.hard:                          130 ; 0x001: 0x82
kfbh.type:                            1 ; 0x002: KFBTYP_DISKHEAD
kfbh.datfmt:                          1 ; 0x003: 0x01
kfbh.block.blk:                       0 ; 0x004: T=0 NUMB=0x0
kfbh.block.obj:              2147483648 ; 0x008: TYPE=0x8 NUMB=0x0
kfbh.check:                   883602253 ; 0x00c: 0x34aab34d
kfbh.fcn.base:                        0 ; 0x010: 0x00000000
kfbh.fcn.wrap:                        0 ; 0x014: 0x00000000
kfbh.spare1:                          0 ; 0x018: 0x00000000
kfbh.spare2:                          0 ; 0x01c: 0x00000000
…………
SQL> alter diskgroup  data mount;
Diskgroup altered.

4.使用kfed merge恢复asm disk header

rac1-> dd if=/dev/zero of=/dev/raw/raw1 bs=4096 count=1
1+0 records in
1+0 records out
rac1->  kfed read /dev/raw/raw1 blknum=0
kfbh.endian:                          0 ; 0x000: 0x00
kfbh.hard:                            0 ; 0x001: 0x00
kfbh.type:                            0 ; 0x002: KFBTYP_INVALID
kfbh.datfmt:                          0 ; 0x003: 0x00
kfbh.block.blk:                       0 ; 0x004: T=0 NUMB=0x0
kfbh.block.obj:                       0 ; 0x008: TYPE=0x0 NUMB=0x0
kfbh.check:                           0 ; 0x00c: 0x00000000
kfbh.fcn.base:                        0 ; 0x010: 0x00000000
kfbh.fcn.wrap:                        0 ; 0x014: 0x00000000
kfbh.spare1:                          0 ; 0x018: 0x00000000
kfbh.spare2:                          0 ; 0x01c: 0x00000000
SQL> alter diskgroup  data dismount;
Diskgroup altered.
SQL> alter diskgroup  data mount;
alter diskgroup  data mount
*
ERROR at line 1:
ORA-15032: not all alterations performed
ORA-15063: ASM discovered an insufficient number of disks for diskgroup "DATA"
rac1->  kfed merge /dev/raw/raw1 /tmp/xifenfei.510
SQL> alter diskgroup  data mount;
Diskgroup altered.

通过试验证明在10.2.0.5及其以后版本中,对于备份的asm disk header我们可以通过使用kfed repair和kfed merge来恢复.

asm备份元数据之md_backup和md_restore

联系:手机/微信(+86 17813235971) QQ(107644445)

标题:asm备份元数据之md_backup和md_restore

作者:惜分飞©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]

在11g的asm中增加了md_backup和md_restore命令,用来备份和还原asm的元数据信息
当前磁盘组相关信息

SQL> select PATH,b.NAME from v$asm_disk a,v$asm_diskgroup b where a.GROUP_NUMBER=b.GROUP_NUMBER;
PATH                                     NAME
---------------------------------------- ----------
/dev/oracleasm/disks/VOL2                DATA
/dev/oracleasm/disks/VOL1                DATA
/dev/oracleasm/disks/VOL4                XIFENFEI
/dev/oracleasm/disks/VOL3                XIFENFEI

md_backup操作

--备份所有mount磁盘组
ASMCMD> md_backup /tmp/xifenfei.md
Disk group metadata to be backed up: DATA
Disk group metadata to be backed up: XIFENFEI
Current alias directory path: XFF/ARCHIVELOG
Current alias directory path: XFF/ARCHIVELOG/2012_04_30
Current alias directory path: XFF/ONLINELOG
Current alias directory path: rac-cluster/OCRFILE
Current alias directory path: XFF/ARCHIVELOG/2012_05_01
Current alias directory path: XFF/CONTROLFILE
Current alias directory path: XFF/ARCHIVELOG/2012_04_13
Current alias directory path: rac-cluster/ASMPARAMETERFILE
Current alias directory path: rac-cluster
Current alias directory path: XFF
Current alias directory path: XFF/ARCHIVELOG/2012_03_03
Current alias directory path: XFF/PARAMETERFILE
Current alias directory path: XFF/DATAFILE
Current alias directory path: ASM/DATAFILE
Current alias directory path: XFF/CONTROLFILE
Current alias directory path: XFF
Current alias directory path: XFF/ONLINELOG
Current alias directory path: XFF/TEMPFILE
Current alias directory path: ASM
--备份指定磁盘组
ASMCMD> md_backup /tmp/xifenfei_data.md -G DATA
Disk group metadata to be backed up: DATA
Current alias directory path: XFF/ARCHIVELOG/2012_03_03
Current alias directory path: XFF/CONTROLFILE
Current alias directory path: XFF/ARCHIVELOG/2012_05_01
Current alias directory path: XFF/ARCHIVELOG
Current alias directory path: rac-cluster/OCRFILE
Current alias directory path: XFF/ARCHIVELOG/2012_05_24
Current alias directory path: XFF/ONLINELOG
Current alias directory path: XFF/ARCHIVELOG/2012_04_30
Current alias directory path: rac-cluster/ASMPARAMETERFILE
Current alias directory path: rac-cluster
Current alias directory path: XFF
Current alias directory path: XFF/ARCHIVELOG/2012_04_13

md_restore操作

--生产sql文件(未执行)
ASMCMD> md_restore -S  /tmp/get_dg_sql -G data /tmp/xifenfei_data.md
Current Diskgroup metadata being restored: DATA
破坏XIFENFEI磁盘组中的其中一个asm disk(/dev/oracleasm/disks/VOL3)
[root@rac1 tmp]#  dd if=/dev/zero of=/dev/sdb1 bs=4096 count=1
1+0 records in
1+0 records out
4096 bytes (4.1 kB) copied, 4.8629e-05 seconds, 84.2 MB/s
--尝试还原磁盘组(操作单位是磁盘组)
ASMCMD>  md_restore /tmp/xifenfei.md --silent -G xifenfei
Current Diskgroup metadata being restored: XIFENFEI
ASMCMD-9352: CREATE DISKGROUP failed
ORA-15018: diskgroup cannot be created
ORA-15033: disk /dev/oracleasm/disks/VOL4 belongs to diskgroup "XIFENFEI" (DBD ERROR: OCIStmtExecute)
--如果一个磁盘组中某个asm disk 出了问题,这种方法不能生效,甚至需要先dd 处理掉所有该磁盘组中的asm disk

总结说明
md_backup和md_restore是磁盘组级别的备份和还原,如果一个磁盘组的某个asm disk出现问题,使用这对命令解决起来还是很麻烦,甚至根本不可行(因为代价太大:要删除该磁盘组其他asm disk header,然后要重新还原所有数据文件),这样的情景下dd或者kfed的备份还是非常有必要,ASM DISK HEADER 备份与恢复.如果是一个磁盘组都损坏,需要还原磁盘组,这个时候这个命令非常的完美(至少比起dd和kfed方便很多).md_backup/md_restore和dd与kfed是互补的命令,而不是md_backup/md_restore出现使得dd和kfed在asm元数据的备份恢复上就没有用武之地.

通过ftp/http拷贝asm中文件

联系:手机/微信(+86 17813235971) QQ(107644445)

标题:通过ftp/http拷贝asm中文件

作者:惜分飞©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]

1.检查Oracle XML Database组件

SQL> select comp_name, status, version from DBA_REGISTRY where comp_name='Oracle XML Database';
COMP_NAME                 STATUS                 VERSION
------------------------- ---------------------- ------------------------------
Oracle XML Database       VALID                  11.2.0.3.0
SQL> select count(*) from dba_objects where owner='XDB' and status='INVALID';
  COUNT(*)
----------
         0

2.配置xdb的ftp和http

[oracle@rac1 ~]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Tue May 1 12:05:27 2012
Copyright (c) 1982, 2011, Oracle.  All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options
SQL> execute dbms_xdb.sethttpport(8080);
PL/SQL procedure successfully completed.
SQL> execute dbms_xdb.setftpport(2100);
PL/SQL procedure successfully completed.
SQL> commit;
Commit complete.
SQL> select dbms_xdb.GETFTPPORT() from dual;
DBMS_XDB.GETFTPPORT()
---------------------
                 2100
SQL> select dbms_xdb.GETHTTPPORT() from dual;
DBMS_XDB.GETHTTPPORT()
----------------------
                  8080
--根据你的需求,可以选择一个即可
SQL> show parameter dispatchers;
NAME                                 TYPE        VALUE
------------------------------------ ----------- -------------------------------
dispatchers                          string      (PROTOCOL=TCP) (SERVICE=XFFXDB)
--dispatchers参数会自动配置,这里需要说明,MOS中说的sidxdb是不恰当的,我这里是db_namexdb
--因为我这里是rac,sid为XFF1,总之相信自动配置

3.查看监听

[oracle@rac1 ~]$ lsnrctl status
LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 01-MAY-2012 12:09:14
Copyright (c) 1991, 2011, Oracle.  All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 11.2.0.3.0 - Production
Start Date                01-MAY-2012 11:51:13
Uptime                    0 days 0 hr. 18 min. 1 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /u01/app/11.2.0/grid/network/admin/listener.ora
Listener Log File         /u01/app/gridbase/diag/tnslsnr/rac1/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.31)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.33)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=rac1)(PORT=8080))(Presentation=HTTP)(Session=RAW))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=rac1)(PORT=2100))(Presentation=FTP)(Session=RAW))
Services Summary...
Service "+ASM" has 1 instance(s).
  Instance "+ASM1", status READY, has 1 handler(s) for this service...
Service "XFF" has 1 instance(s).
  Instance "XFF1", status READY, has 1 handler(s) for this service...
Service "XFFXDB" has 1 instance(s).
  Instance "XFF1", status READY, has 1 handler(s) for this service...
The command completed successfully
--以下两条监听是自动增加上去,如果没有自动增加,需要手工增加并且重启或者重新加载监听
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=rac1)(PORT=8080))(Presentation=HTTP)(Session=RAW))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=rac1)(PORT=2100))(Presentation=FTP)(Session=RAW))

4.ftp基本操作

[oracle@rac1 ~]$ ftp -n
ftp> open rac1 2100
Connected to rac1.
220- rac1
Unauthorised use of this FTP server is prohibited and may be subject to civil and criminal prosecution.
220 rac1 FTP Server (Oracle XML DB/Oracle Database) ready.
530  Please login with USER and PASS.
530  Please login with USER and PASS.
KERBEROS_V4 rejected as an authentication type
ftp> user system xifenfei
331 pass required for SYSTEM
230 SYSTEM logged in
ftp> ls
227 Entering Passive Mode (192,168,1,31,181,5)
150 ASCII Data Connection
drw-r--r--   2 SYS      oracle         0 SEP 18 17:49 OLAP_XDS
drw-r--r--   2 SYS      oracle         0 SEP 18 17:47 home
drw-r--r--   2 SYS      oracle         0 SEP 18 18:02 images
drw-r--r--   2 SYS      oracle         0 SEP 18 17:49 olap_data_security
drw-r--r--   2 SYS      oracle         0 SEP 18 17:43 public
drw-r--r--   2 SYS      oracle         0 SEP 18 17:44 sys
-rw-r--r--   1 SYS      oracle         0 MAY 01 04:06 xdbconfig.xml
drw-r--r--   2 SYS      oracle         0 SEP 18 17:49 xds
226 ASCII Transfer Complete
ftp> cd sys
250 CWD Command successful
ftp> cd asm
250 CWD Command successful
ftp> ls
227 Entering Passive Mode (192,168,1,31,98,133)
150 ASCII Data Connection
drw-r--r--   2 SYS      oracle         0 MAY 01 04:14 XIFENFEI
drw-r--r--   2 SYS      oracle         0 MAY 01 04:14 DATA
226 ASCII Transfer Complete
ftp> cd xifenfei
250 CWD Command successful
ftp> ls
227 Entering Passive Mode (192,168,1,31,151,70)
150 ASCII Data Connection
drw-r--r--   2 SYS      oracle         0 MAY 01 04:15 XFF
drw-r--r--   2 SYS      oracle         0 MAY 01 04:15 ASM
226 ASCII Transfer Complete
ftp> cd xff
250 CWD Command successful
ftp> ls
227 Entering Passive Mode (192,168,1,31,100,14)
150 ASCII Data Connection
drw-r--r--   2 SYS      oracle         0 MAY 01 04:15 DATAFILE
drw-r--r--   2 SYS      oracle         0 MAY 01 04:15 CONTROLFILE
drw-r--r--   2 SYS      oracle         0 MAY 01 04:15 ONLINELOG
drw-r--r--   2 SYS      oracle         0 MAY 01 04:15 TEMPFILE
drw-r--r--   2 SYS      oracle         0 MAY 01 04:15 PARAMETERFILE
-rw-r--r--   1 SYS      oracle      3584 MAY 01 04:15 spfileXFF.ora
226 ASCII Transfer Complete
ftp> cd xff/datafile
250 CWD Command successful
ftp> ls
227 Entering Passive Mode (192,168,1,31,30,63)
150 ASCII Data Connection
-rw-r--r--   1 SYS      oracle  744497152 MAY 01 04:20 SYSTEM.256.776961315
-rw-r--r--   1 SYS      oracle  618668032 MAY 01 04:20 SYSAUX.257.776961315
-rw-r--r--   1 SYS      oracle  83894272 MAY 01 04:20 UNDOTBS1.258.776961317
-rw-r--r--   1 SYS      oracle   6291456 MAY 01 04:20 user_dd.dbf
-rw-r--r--   1 SYS      oracle  26222592 MAY 01 04:20 UNDOTBS2.264.776961693
-rw-r--r--   1 SYS      oracle  157294592 MAY 01 04:20 xifenfei01.dbf
226 ASCII Transfer Complete
ftp> get xifenfei01.dbf
local: xifenfei01.dbf remote: xifenfei01.dbf
227 Entering Passive Mode (192,168,1,31,143,34)
150 ASCII Data Connection
550- Error Response
ORA-31198: Mismatch in number of bytes transferred due to non-binary mode
550 End Error Response
270340 bytes received in 0.053 seconds (5e+03 Kbytes/s)
ftp> binary
200  Type set to I.
ftp> get xifenfei01.dbf
local: xifenfei01.dbf remote: xifenfei01.dbf
227 Entering Passive Mode (192,168,1,31,9,112)
150 BIN Data Connection
226 BIN Transfer Complete
157294592 bytes received in 14 seconds (1.1e+04 Kbytes/s)
--主要需要设置为二进制传输模式,默认是ASCII方式的,可能会报错
ftp> quit
221 QUIT Goodbye.

这篇文章主要参考How to configure XDB for using ftp and http protocols with ASM [ID 357714.1],但是在自己试验过程中,发现文档中有些地方不太合适,这里做个补充说明
1.ftp服务端不需要启动(这里只是用到了操作系统的ftp客户端功能,如果使用其他客户端工具,连操作系统客户端都省了)
2.dispatchers 中的SERVICE=XDB不准确,系统自动配置的XDB亦可以正常工作,更相信数据库自动配置
3.ftp和http两个功能,只需要配置一个即可(选择你需要的)
4.下图展示的是通过http方式访问结果(system用户登录)
http_asm

ASM未正常启动,使用dd找回数据文件

联系:手机/微信(+86 17813235971) QQ(107644445)

标题:ASM未正常启动,使用dd找回数据文件

作者:惜分飞©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]

本篇主要测试在ASM未启动状态下,如何找出找出文件文件对应的AU,并且通过dd还原出数据文件
参考文档:ASM的文件管理深入解析(内含开源的ASM文件挖掘研究版程序)
模拟测试数据

SQL> alter database datafile '+XIFENFEI/xff/datafile/xifenfei.268.781905429' resize 50M ;
Database altered.
SQL> alter database datafile '+XIFENFEI/xff/datafile/xifenfei.268.781905429' autoextend off;
Database altered.
SQL> select GROUP_NUMBER from V$ASM_DISKGROUP where NAME like '%XIFENFEI%';
GROUP_NUMBER
------------
           2
SQL> select DISK_NUMBER,path from v$asm_disk where GROUP_NUMBER=2;
DISK_NUMBER PATH
----------- ---------------------------------------------
          1 /dev/oracleasm/disks/VOL4
          0 /dev/oracleasm/disks/VOL3
SQL> create table t_xifenfei tablespace xifenfei
  2  as
  3  select  * from dba_objects;
Table created.
SQL> select count(*)  from t_xifenfei;
  COUNT(*)
----------
     74537

kfed找出相关AU映射

------------------------------------------------------------------------------
1号文件的第一个AU(0号盘2号AU)中,只能保存1至255号文件的。
从256号文件开始,AU的分布信息保存在1号文件第二个AU中,也就是(1号盘,64号AU)。
其中第一个块(0号块),对应256号文件。1号块对应257号文件,等等,依此类推。
------------------------------------------------------------------------------
[grid@rac1 disks]$  kfed read /dev/oracleasm/disks/VOL3 aun=2 blkn=1|more
kfffde[0].xptr.au:                    2 ; 0x4a0: 0x00000002
kfffde[0].xptr.disk:                  0 ; 0x4a4: 0x0000
kfffde[0].xptr.flags:                 0 ; 0x4a6: L=0 E=0 D=0 S=0
kfffde[0].xptr.chk:                  40 ; 0x4a7: 0x28
kfffde[1].xptr.au:                   64 ; 0x4a8: 0x00000040
kfffde[1].xptr.disk:                  1 ; 0x4ac: 0x0001
kfffde[1].xptr.flags:                 0 ; 0x4ae: L=0 E=0 D=0 S=0
kfffde[1].xptr.chk:                 107 ; 0x4af: 0x6b
kfffde[2].xptr.au:           4294967295 ; 0x4b0: 0xffffffff
kfffde[2].xptr.disk:              65535 ; 0x4b4: 0xffff
kfffde[2].xptr.flags:                 0 ; 0x4b6: L=0 E=0 D=0 S=0
kfffde[2].xptr.chk:                  42 ; 0x4b7: 0x2a
[grid@rac1 disks]$  kfed read /dev/oracleasm/disks/VOL4 aun=64 blkn=12|more
kfffde[0].xptr.au:                  681 ; 0x4a0: 0x000002a9
kfffde[0].xptr.disk:                  0 ; 0x4a4: 0x0000
kfffde[0].xptr.flags:                 0 ; 0x4a6: L=0 E=0 D=0 S=0
kfffde[0].xptr.chk:                 129 ; 0x4a7: 0x81
kfffde[1].xptr.au:                 1092 ; 0x4a8: 0x00000444
kfffde[1].xptr.disk:                  1 ; 0x4ac: 0x0001
kfffde[1].xptr.flags:                 0 ; 0x4ae: L=0 E=0 D=0 S=0
kfffde[1].xptr.chk:                 107 ; 0x4af: 0x6b
kfffde[2].xptr.au:                 1093 ; 0x4b0: 0x00000445
kfffde[2].xptr.disk:                  1 ; 0x4b4: 0x0001
kfffde[2].xptr.flags:                 0 ; 0x4b6: L=0 E=0 D=0 S=0
kfffde[2].xptr.chk:                 106 ; 0x4b7: 0x6a
kfffde[3].xptr.au:                  682 ; 0x4b8: 0x000002aa
kfffde[3].xptr.disk:                  0 ; 0x4bc: 0x0000
kfffde[3].xptr.flags:                 0 ; 0x4be: L=0 E=0 D=0 S=0
kfffde[3].xptr.chk:                 130 ; 0x4bf: 0x82
kfffde[4].xptr.au:                 1094 ; 0x4c0: 0x00000446
kfffde[4].xptr.disk:                  1 ; 0x4c4: 0x0001
kfffde[4].xptr.flags:                 0 ; 0x4c6: L=0 E=0 D=0 S=0
kfffde[4].xptr.chk:                 105 ; 0x4c7: 0x69
kfffde[5].xptr.au:                 1095 ; 0x4c8: 0x00000447
kfffde[5].xptr.disk:                  1 ; 0x4cc: 0x0001
kfffde[5].xptr.flags:                 0 ; 0x4ce: L=0 E=0 D=0 S=0
kfffde[5].xptr.chk:                 104 ; 0x4cf: 0x68
kfffde[6].xptr.au:                  683 ; 0x4d0: 0x000002ab
kfffde[6].xptr.disk:                  0 ; 0x4d4: 0x0000
kfffde[6].xptr.flags:                 0 ; 0x4d6: L=0 E=0 D=0 S=0
kfffde[6].xptr.chk:                 131 ; 0x4d7: 0x83
kfffde[7].xptr.au:                 1096 ; 0x4d8: 0x00000448
kfffde[7].xptr.disk:                  1 ; 0x4dc: 0x0001
kfffde[7].xptr.flags:                 0 ; 0x4de: L=0 E=0 D=0 S=0
kfffde[7].xptr.chk:                 103 ; 0x4df: 0x67
kfffde[8].xptr.au:                  684 ; 0x4e0: 0x000002ac
kfffde[8].xptr.disk:                  0 ; 0x4e4: 0x0000
kfffde[8].xptr.flags:                 0 ; 0x4e6: L=0 E=0 D=0 S=0
kfffde[8].xptr.chk:                 132 ; 0x4e7: 0x84
kfffde[9].xptr.au:                 1097 ; 0x4e8: 0x00000449
kfffde[9].xptr.disk:                  1 ; 0x4ec: 0x0001
kfffde[9].xptr.flags:                 0 ; 0x4ee: L=0 E=0 D=0 S=0
kfffde[9].xptr.chk:                 102 ; 0x4ef: 0x66
kfffde[10].xptr.au:                1098 ; 0x4f0: 0x0000044a
kfffde[10].xptr.disk:                 1 ; 0x4f4: 0x0001
kfffde[10].xptr.flags:                0 ; 0x4f6: L=0 E=0 D=0 S=0
kfffde[10].xptr.chk:                101 ; 0x4f7: 0x65
kfffde[11].xptr.au:                 685 ; 0x4f8: 0x000002ad
kfffde[11].xptr.disk:                 0 ; 0x4fc: 0x0000
kfffde[11].xptr.flags:                0 ; 0x4fe: L=0 E=0 D=0 S=0
kfffde[11].xptr.chk:                133 ; 0x4ff: 0x85
kfffde[12].xptr.au:                1099 ; 0x500: 0x0000044b
kfffde[12].xptr.disk:                 1 ; 0x504: 0x0001
kfffde[12].xptr.flags:                0 ; 0x506: L=0 E=0 D=0 S=0
kfffde[12].xptr.chk:                100 ; 0x507: 0x64
kfffde[13].xptr.au:                 686 ; 0x508: 0x000002ae
kfffde[13].xptr.disk:                 0 ; 0x50c: 0x0000
kfffde[13].xptr.flags:                0 ; 0x50e: L=0 E=0 D=0 S=0
kfffde[13].xptr.chk:                134 ; 0x50f: 0x86
kfffde[14].xptr.au:                1100 ; 0x510: 0x0000044c
kfffde[14].xptr.disk:                 1 ; 0x514: 0x0001
kfffde[14].xptr.flags:                0 ; 0x516: L=0 E=0 D=0 S=0
kfffde[14].xptr.chk:                 99 ; 0x517: 0x63
kfffde[15].xptr.au:                1101 ; 0x518: 0x0000044d
kfffde[15].xptr.disk:                 1 ; 0x51c: 0x0001
kfffde[15].xptr.flags:                0 ; 0x51e: L=0 E=0 D=0 S=0
kfffde[15].xptr.chk:                 98 ; 0x51f: 0x62
kfffde[16].xptr.au:                 687 ; 0x520: 0x000002af
kfffde[16].xptr.disk:                 0 ; 0x524: 0x0000
kfffde[16].xptr.flags:                0 ; 0x526: L=0 E=0 D=0 S=0
kfffde[16].xptr.chk:                135 ; 0x527: 0x87
kfffde[17].xptr.au:                1102 ; 0x528: 0x0000044e
kfffde[17].xptr.disk:                 1 ; 0x52c: 0x0001
kfffde[17].xptr.flags:                0 ; 0x52e: L=0 E=0 D=0 S=0
kfffde[17].xptr.chk:                 97 ; 0x52f: 0x61
kfffde[18].xptr.au:                1103 ; 0x530: 0x0000044f
kfffde[18].xptr.disk:                 1 ; 0x534: 0x0001
kfffde[18].xptr.flags:                0 ; 0x536: L=0 E=0 D=0 S=0
kfffde[18].xptr.chk:                 96 ; 0x537: 0x60
kfffde[19].xptr.au:                 688 ; 0x538: 0x000002b0
kfffde[19].xptr.disk:                 0 ; 0x53c: 0x0000
kfffde[19].xptr.flags:                0 ; 0x53e: L=0 E=0 D=0 S=0
kfffde[19].xptr.chk:                152 ; 0x53f: 0x98
kfffde[20].xptr.au:                1104 ; 0x540: 0x00000450
kfffde[20].xptr.disk:                 1 ; 0x544: 0x0001
kfffde[20].xptr.flags:                0 ; 0x546: L=0 E=0 D=0 S=0
kfffde[20].xptr.chk:                127 ; 0x547: 0x7f
kfffde[21].xptr.au:                 689 ; 0x548: 0x000002b1
kfffde[21].xptr.disk:                 0 ; 0x54c: 0x0000
kfffde[21].xptr.flags:                0 ; 0x54e: L=0 E=0 D=0 S=0
kfffde[21].xptr.chk:                153 ; 0x54f: 0x99
kfffde[22].xptr.au:                1105 ; 0x550: 0x00000451
kfffde[22].xptr.disk:                 1 ; 0x554: 0x0001
kfffde[22].xptr.flags:                0 ; 0x556: L=0 E=0 D=0 S=0
kfffde[22].xptr.chk:                126 ; 0x557: 0x7e
kfffde[23].xptr.au:                1106 ; 0x558: 0x00000452
kfffde[23].xptr.disk:                 1 ; 0x55c: 0x0001
kfffde[23].xptr.flags:                0 ; 0x55e: L=0 E=0 D=0 S=0
kfffde[23].xptr.chk:                125 ; 0x55f: 0x7d
kfffde[24].xptr.au:                 690 ; 0x560: 0x000002b2
kfffde[24].xptr.disk:                 0 ; 0x564: 0x0000
kfffde[24].xptr.flags:                0 ; 0x566: L=0 E=0 D=0 S=0
kfffde[24].xptr.chk:                154 ; 0x567: 0x9a
kfffde[25].xptr.au:                1107 ; 0x568: 0x00000453
kfffde[25].xptr.disk:                 1 ; 0x56c: 0x0001
kfffde[25].xptr.flags:                0 ; 0x56e: L=0 E=0 D=0 S=0
kfffde[25].xptr.chk:                124 ; 0x56f: 0x7c
kfffde[26].xptr.au:                 691 ; 0x570: 0x000002b3
kfffde[26].xptr.disk:                 0 ; 0x574: 0x0000
kfffde[26].xptr.flags:                0 ; 0x576: L=0 E=0 D=0 S=0
kfffde[26].xptr.chk:                155 ; 0x577: 0x9b
kfffde[27].xptr.au:                1108 ; 0x578: 0x00000454
kfffde[27].xptr.disk:                 1 ; 0x57c: 0x0001
kfffde[27].xptr.flags:                0 ; 0x57e: L=0 E=0 D=0 S=0
kfffde[27].xptr.chk:                123 ; 0x57f: 0x7b
kfffde[28].xptr.au:                1109 ; 0x580: 0x00000455
kfffde[28].xptr.disk:                 1 ; 0x584: 0x0001
kfffde[28].xptr.flags:                0 ; 0x586: L=0 E=0 D=0 S=0
kfffde[28].xptr.chk:                122 ; 0x587: 0x7a
kfffde[29].xptr.au:                 692 ; 0x588: 0x000002b4
kfffde[29].xptr.disk:                 0 ; 0x58c: 0x0000
kfffde[29].xptr.flags:                0 ; 0x58e: L=0 E=0 D=0 S=0
kfffde[29].xptr.chk:                156 ; 0x58f: 0x9c
kfffde[30].xptr.au:                1110 ; 0x590: 0x00000456
kfffde[30].xptr.disk:                 1 ; 0x594: 0x0001
kfffde[30].xptr.flags:                0 ; 0x596: L=0 E=0 D=0 S=0
kfffde[30].xptr.chk:                121 ; 0x597: 0x79
kfffde[31].xptr.au:                1111 ; 0x598: 0x00000457
kfffde[31].xptr.disk:                 1 ; 0x59c: 0x0001
kfffde[31].xptr.flags:                0 ; 0x59e: L=0 E=0 D=0 S=0
kfffde[31].xptr.chk:                120 ; 0x59f: 0x78
kfffde[32].xptr.au:                 693 ; 0x5a0: 0x000002b5
kfffde[32].xptr.disk:                 0 ; 0x5a4: 0x0000
kfffde[32].xptr.flags:                0 ; 0x5a6: L=0 E=0 D=0 S=0
kfffde[32].xptr.chk:                157 ; 0x5a7: 0x9d
kfffde[33].xptr.au:                1112 ; 0x5a8: 0x00000458
kfffde[33].xptr.disk:                 1 ; 0x5ac: 0x0001
kfffde[33].xptr.flags:                0 ; 0x5ae: L=0 E=0 D=0 S=0
kfffde[33].xptr.chk:                119 ; 0x5af: 0x77
kfffde[34].xptr.au:                 694 ; 0x5b0: 0x000002b6
kfffde[34].xptr.disk:                 0 ; 0x5b4: 0x0000
kfffde[34].xptr.flags:                0 ; 0x5b6: L=0 E=0 D=0 S=0
kfffde[34].xptr.chk:                158 ; 0x5b7: 0x9e
kfffde[35].xptr.au:                1113 ; 0x5b8: 0x00000459
kfffde[35].xptr.disk:                 1 ; 0x5bc: 0x0001
kfffde[35].xptr.flags:                0 ; 0x5be: L=0 E=0 D=0 S=0
kfffde[35].xptr.chk:                118 ; 0x5bf: 0x76
kfffde[36].xptr.au:                1114 ; 0x5c0: 0x0000045a
kfffde[36].xptr.disk:                 1 ; 0x5c4: 0x0001
kfffde[36].xptr.flags:                0 ; 0x5c6: L=0 E=0 D=0 S=0
kfffde[36].xptr.chk:                117 ; 0x5c7: 0x75
kfffde[37].xptr.au:                 695 ; 0x5c8: 0x000002b7
kfffde[37].xptr.disk:                 0 ; 0x5cc: 0x0000
kfffde[37].xptr.flags:                0 ; 0x5ce: L=0 E=0 D=0 S=0
kfffde[37].xptr.chk:                159 ; 0x5cf: 0x9f
kfffde[38].xptr.au:                1115 ; 0x5d0: 0x0000045b
kfffde[38].xptr.disk:                 1 ; 0x5d4: 0x0001
kfffde[38].xptr.flags:                0 ; 0x5d6: L=0 E=0 D=0 S=0
kfffde[38].xptr.chk:                116 ; 0x5d7: 0x74
kfffde[39].xptr.au:                1116 ; 0x5d8: 0x0000045c
kfffde[39].xptr.disk:                 1 ; 0x5dc: 0x0001
kfffde[39].xptr.flags:                0 ; 0x5de: L=0 E=0 D=0 S=0
kfffde[39].xptr.chk:                115 ; 0x5df: 0x73
kfffde[40].xptr.au:                 696 ; 0x5e0: 0x000002b8
kfffde[40].xptr.disk:                 0 ; 0x5e4: 0x0000
kfffde[40].xptr.flags:                0 ; 0x5e6: L=0 E=0 D=0 S=0
kfffde[40].xptr.chk:                144 ; 0x5e7: 0x90
kfffde[41].xptr.au:                1117 ; 0x5e8: 0x0000045d
kfffde[41].xptr.disk:                 1 ; 0x5ec: 0x0001
kfffde[41].xptr.flags:                0 ; 0x5ee: L=0 E=0 D=0 S=0
kfffde[41].xptr.chk:                114 ; 0x5ef: 0x72
kfffde[42].xptr.au:                 697 ; 0x5f0: 0x000002b9
kfffde[42].xptr.disk:                 0 ; 0x5f4: 0x0000
kfffde[42].xptr.flags:                0 ; 0x5f6: L=0 E=0 D=0 S=0
kfffde[42].xptr.chk:                145 ; 0x5f7: 0x91
kfffde[43].xptr.au:                1118 ; 0x5f8: 0x0000045e
kfffde[43].xptr.disk:                 1 ; 0x5fc: 0x0001
kfffde[43].xptr.flags:                0 ; 0x5fe: L=0 E=0 D=0 S=0
kfffde[43].xptr.chk:                113 ; 0x5ff: 0x71
kfffde[44].xptr.au:                1119 ; 0x600: 0x0000045f
kfffde[44].xptr.disk:                 1 ; 0x604: 0x0001
kfffde[44].xptr.flags:                0 ; 0x606: L=0 E=0 D=0 S=0
kfffde[44].xptr.chk:                112 ; 0x607: 0x70
kfffde[45].xptr.au:                 698 ; 0x608: 0x000002ba
kfffde[45].xptr.disk:                 0 ; 0x60c: 0x0000
kfffde[45].xptr.flags:                0 ; 0x60e: L=0 E=0 D=0 S=0
kfffde[45].xptr.chk:                146 ; 0x60f: 0x92
kfffde[46].xptr.au:                1120 ; 0x610: 0x00000460
kfffde[46].xptr.disk:                 1 ; 0x614: 0x0001
kfffde[46].xptr.flags:                0 ; 0x616: L=0 E=0 D=0 S=0
kfffde[46].xptr.chk:                 79 ; 0x617: 0x4f
kfffde[47].xptr.au:                 699 ; 0x618: 0x000002bb
kfffde[47].xptr.disk:                 0 ; 0x61c: 0x0000
kfffde[47].xptr.flags:                0 ; 0x61e: L=0 E=0 D=0 S=0
kfffde[47].xptr.chk:                147 ; 0x61f: 0x93
kfffde[48].xptr.au:                1121 ; 0x620: 0x00000461
kfffde[48].xptr.disk:                 1 ; 0x624: 0x0001
kfffde[48].xptr.flags:                0 ; 0x626: L=0 E=0 D=0 S=0
kfffde[48].xptr.chk:                 78 ; 0x627: 0x4e
kfffde[49].xptr.au:                1122 ; 0x628: 0x00000462
kfffde[49].xptr.disk:                 1 ; 0x62c: 0x0001
kfffde[49].xptr.flags:                0 ; 0x62e: L=0 E=0 D=0 S=0
kfffde[49].xptr.chk:                 77 ; 0x62f: 0x4d
kfffde[50].xptr.au:                 700 ; 0x630: 0x000002bc
kfffde[50].xptr.disk:                 0 ; 0x634: 0x0000
kfffde[50].xptr.flags:                0 ; 0x636: L=0 E=0 D=0 S=0
kfffde[50].xptr.chk:                148 ; 0x637: 0x94
--到此截止
kfffde[51].xptr.au:          4294967295 ; 0x638: 0xffffffff
kfffde[51].xptr.disk:             65535 ; 0x63c: 0xffff
kfffde[51].xptr.flags:                0 ; 0x63e: L=0 E=0 D=0 S=0
kfffde[51].xptr.chk:                 42 ; 0x63f: 0x2a

dd操作

[grid@rac1 disks]$ dd if=/dev/oracleasm/disks/VOL3 bs=1024k count=1 skip=681 seek=0 of=/tmp/xifenfei01.dbf
1+0 records in
1+0 records out
1048576 bytes (1.0 MB) copied, 0.0924808 seconds, 11.3 MB/s
[grid@rac1 disks]$ dd if=/dev/oracleasm/disks/VOL4 bs=1024k count=1 skip=1092 seek=1 of=/tmp/xifenfei01.dbf
1+0 records in
1+0 records out
1048576 bytes (1.0 MB) copied, 0.051765 seconds, 20.3 MB/s
[grid@rac1 disks]$ dd if=/dev/oracleasm/disks/VOL4 bs=1024k count=1 skip=1093 seek=2 of=/tmp/xifenfei01.dbf
1+0 records in
1+0 records out
1048576 bytes (1.0 MB) copied, 0.0695681 seconds, 15.1 MB/s
[grid@rac1 disks]$ dd if=/dev/oracleasm/disks/VOL3 bs=1024k count=1 skip=682 seek=3 of=/tmp/xifenfei01.dbf
1+0 records in
1+0 records out
1048576 bytes (1.0 MB) copied, 0.0516708 seconds, 20.3 MB/s
…………类此处理…………
[grid@rac1 disks]$ dd if=/dev/oracleasm/disks/VOL4 bs=1024k count=1 skip=1122 seek=49 of=/tmp/xifenfei01.dbf
1+0 records in
1+0 records out
1048576 bytes (1.0 MB) copied, 0.0699421 seconds, 15.0 MB/s
[grid@rac1 disks]$ dd if=/dev/oracleasm/disks/VOL3 bs=1024k count=1 skip=700 seek=50 of=/tmp/xifenfei01.dbf
1+0 records in
1+0 records out
1048576 bytes (1.0 MB) copied, 0.0650649 seconds, 16.1 MB/s

修改所有者

[root@rac1 ~]#  chown oracle.oinstall /tmp/xifenfei01.dbf
[root@rac1 ~]# ll /tmp/xifenfei01.dbf
-rw-r--r-- 1 oracle oinstall 53477376 Apr 30 12:57 /tmp/xifenfei01.dbf

dbv验证数据文件

[oracle@rac1 ~]$ dbv file='+XIFENFEI/xff/datafile/xifenfei.268.781905429' userid=sys/xifenfei
DBVERIFY: Release 11.2.0.3.0 - Production on Mon Apr 30 12:53:32 2012
Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.
DBVERIFY - Verification starting : FILE = +XIFENFEI/xff/datafile/xifenfei.268.781905429
DBVERIFY - Verification complete
Total Pages Examined         : 6400
Total Pages Processed (Data) : 1066
Total Pages Failing   (Data) : 0
Total Pages Processed (Index): 0
Total Pages Failing   (Index): 0
Total Pages Processed (Other): 156
Total Pages Processed (Seg)  : 0
Total Pages Failing   (Seg)  : 0
Total Pages Empty            : 5178
Total Pages Marked Corrupt   : 0
Total Pages Influx           : 0
Total Pages Encrypted        : 0
Highest block SCN            : 0 (0.0)
[oracle@rac1 ~]$ dbv file='/tmp/xifenfei01.dbf'
DBVERIFY: Release 11.2.0.3.0 - Production on Mon Apr 30 12:53:50 2012
Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.
DBVERIFY - Verification starting : FILE = /tmp/xifenfei01.dbf
DBVERIFY - Verification complete
Total Pages Examined         : 6400
Total Pages Processed (Data) : 1066
Total Pages Failing   (Data) : 0
Total Pages Processed (Index): 0
Total Pages Failing   (Index): 0
Total Pages Processed (Other): 156
Total Pages Processed (Seg)  : 0
Total Pages Failing   (Seg)  : 0
Total Pages Empty            : 5178
Total Pages Marked Corrupt   : 0
Total Pages Influx           : 0
Total Pages Encrypted        : 0
Highest block SCN            : 1039267 (0.1039267)

数据库验证数据文件

SQL> alter database datafile '+XIFENFEI/xff/datafile/xifenfei.268.781905429' offline;
Database altered.
SQL> alter database rename file '+XIFENFEI/xff/datafile/xifenfei.268.781905429'
  2  to '/tmp/xifenfei01.dbf';
Database altered.
SQL>  recover datafile '/tmp/xifenfei01.dbf';
Media recovery complete.
SQL> alter database datafile '/tmp/xifenfei01.dbf' online;
Database altered.
SQL> select count(*) from t_xifenfei;
  COUNT(*)
----------
     74537

bbed修改ASM中数据

联系:手机/微信(+86 17813235971) QQ(107644445)

标题:bbed修改ASM中数据

作者:惜分飞©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]

本篇文章演示了如何从ASM中通过dd拷贝出某种表的记录,然后通过bbed修改相关记录,再拷贝到库中.说的简单点就是通过dd拷贝出最少的需要对象数据块,然后通过bbed绕过数据库级别对相关记录进行修改
模拟测试数据

--ORACLE数据库中执行
SQL> create tablespace xifenfei datafile '+xifenfei' size 30M autoextend on maxsize 10G;
Tablespace created.
SQL> create table t_xifenfei (id number,name varchar2(10)) tablespace xifenfei;
Table created.
SQL> insert into t_xifenfei values(1,'xifenfei');
1 row created.
SQL> insert into t_xifenfei values(2,'XFF');
1 row created.
SQL> SELECT * FROM T_XIFENFEI;
        ID NAME
---------- ----------
         1 xifenfei
         2 XFF
SQL> commit;
Commit complete.
SQL> select EXTENT_ID, BLOCK_ID, BLOCKS, FILE_ID from dba_extents
  2  where SEGMENT_NAME='T_XIFENFEI' and OWNER='SYS';
 EXTENT_ID   BLOCK_ID     BLOCKS    FILE_ID
---------- ---------- ---------- ----------
         0        128          8          6
SQL> select name from v$datafile where file#=6;
NAME
----------------------------------------------------
+XIFENFEI/xff/datafile/xifenfei.268.781905429
SQL> select GROUP_NUMBER from V$ASM_DISKGROUP where NAME like '%XIFENFEI%';
GROUP_NUMBER
------------
           2

在ASM用户中查询相关数据

--ASM中执行
SQL> SELECT disk_kffxp, au_kffxp, xnum_kffxp
  2  FROM x$kffxp
  3   WHERE GROUP_KFFXP=2
  4  AND NUMBER_KFFXP=268;
DISK_KFFXP   AU_KFFXP XNUM_KFFXP
---------- ---------- ----------
         0        681          0
         1       1092          1
         1       1093          2
         0        682          3
         1       1094          4
         1       1095          5
         0        683          6
         1       1096          7
         0        684          8
         1       1097          9
         1       1098         10
DISK_KFFXP   AU_KFFXP XNUM_KFFXP
---------- ---------- ----------
         0        685         11
         1       1099         12
         0        686         13
         1       1100         14
         1       1101         15
         0        687         16
         1       1102         17
         1       1103         18
         0        688         19
         1       1104         20
         0        689         21
DISK_KFFXP   AU_KFFXP XNUM_KFFXP
---------- ---------- ----------
         1       1105         22
         1       1106         23
         0        690         24
         1       1107         25
         0        691         26
         1       1108         27
         1       1109         28
         0        692         29
         1       1110         30
31 rows selected.
--数据文件6的AU分配情况
SQL> select 128*8/1024 from dual;
128*8/1024
----------
         1
SQL> select 8*8/1024 from dual;
  8*8/1024
----------
     .0625
--可以得出该表T_XIFENFEI的数据分布在第二块AU中(DISK_KFFXP=1/AU_KFFXP=1092/XNUM_KFFXP=1)
SQL> select name, path from v$asm_disk where group_number=2
  2  and disk_number=1;
NAME                           PATH
------------------------------ --------------------------
XIFENFEI_0001                  /dev/oracleasm/disks/VOL4

找出对应磁盘或者分区

[grid@rac1 ~]$ /etc/init.d/oracleasm querydisk -d VOL4
Disk "VOL4" is a valid ASM disk on device [8,18]
[grid@rac1 ~]$ cat /proc/partitions |grep "8       18"
   8       18    3879697 sdb2

因为这里的block_id=128,刚好是下一个AU的起点,所以dd操作的起点是第二个AU(DISK_KFFXP=1/AU_KFFXP=1092),而终点是8*8=64K(第二个AU中offset 64KB)

执行dd导出表数据

of=/dev/sdb2
sb=1K
skip=1092*1024=1118208
count=64
[root@rac1 ~]# dd if=/dev/sdb2 bs=1k count=64 skip=1118208|strings
64+0 records in
64+0 records out
65536 bytes (66 kB) copied, 0.000656471 seconds, 99.8 MB/s
XFF,
xifenfei
[root@rac1 ~]# dd if=/dev/sdb2 bs=1k count=64 skip=1118208 of=/tmp/t_xifenfe.tab
64+0 records in
64+0 records out
65536 bytes (66 kB) copied, 0.00226337 seconds, 29.0 MB/s
[root@rac1 ~]# chown oracle.oinstall /tmp/t_xifenfe.tab
[root@rac1 ~]# ll /tmp/t_xifenfe.tab
-rw-r--r-- 1 oracle oinstall 65536 Apr 29 21:54 /tmp/t_xifenfe.tab

bbed 修改数据内容

[oracle@rac1 ~]$ bbed
Password:
BBED: Release 2.0.0.0.0 - Limited Production on Sun Apr 29 22:43:56 2012
Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.
************* !!! For Oracle Internal Use only !!! ***************
BBED> set filename '/tmp/t_xifenfe.tab'
        FILENAME        /tmp/t_xifenfe.tab
BBED> set block 4
        BLOCK#          4
BBED> set mode edit
        MODE            Edit
BBED> set blocksize 8192
        BLOCKSIZE       8192
BBED> map
 File: /tmp/t_xifenfe.tab (0)
 Block: 4                                     Dba:0x00000000
------------------------------------------------------------
 KTB Data Block (Table/Cluster)
 struct kcbh, 20 bytes                      @0
 struct ktbbh, 72 bytes                     @20
 struct kdbh, 14 bytes                      @100
 struct kdbt[1], 4 bytes                    @114
 sb2 kdbr[2]                                @118
 ub1 freespace[8041]                        @122
 ub1 rowdata[25]                            @8163
 ub4 tailchk                                @8188
BBED> p kdbr
sb2 kdbr[0]                                 @118      8073
sb2 kdbr[1]                                 @120      8063
BBED> find /c XFF
 File: /tmp/t_xifenfe.tab (0)
 Block: 4                Offsets: 8170 to 8191           Dba:0x00000000
------------------------------------------------------------------------
 5846462c 010202c1 02087869 66656e66 65690106 ba33
 <32 bytes per line>
BBED> dump /v
 File: /tmp/t_xifenfe.tab (0)
 Block: 4       Offsets: 8170 to 8191  Dba:0x00000000
-------------------------------------------------------
 5846462c 010202c1 02087869 66656e66 l XFF,......xifenf
 65690106 ba33                       l ei...3
 <16 bytes per line>
BBED> m /c xff
 File: /tmp/t_xifenfe.tab (0)
 Block: 4                Offsets: 8170 to 8191           Dba:0x00000000
------------------------------------------------------------------------
 7866662c 010202c1 02087869 66656e66 65690106 ba33
 <32 bytes per line>
BBED> dump /v
 File: /tmp/t_xifenfe.tab (0)
 Block: 4       Offsets: 8170 to 8191  Dba:0x00000000
-------------------------------------------------------
 7866662c 010202c1 02087869 66656e66 l xff,......xifenf
 65690106 ba33                       l ei...3
 <16 bytes per line>
BBED> find /c xifenfei
 File: /tmp/t_xifenfe.tab (0)
 Block: 4                Offsets: 8180 to 8191           Dba:0x00000000
------------------------------------------------------------------------
 78696665 6e666569 0106ba33
 <32 bytes per line>
BBED> dump /v
 File: /tmp/t_xifenfe.tab (0)
 Block: 4       Offsets: 8180 to 8191  Dba:0x00000000
-------------------------------------------------------
 78696665 6e666569 0106ba33          l xifenfei...3
 <16 bytes per line>
BBED> m /c XIFENFEI
 File: /tmp/t_xifenfe.tab (0)
 Block: 4                Offsets: 8180 to 8191           Dba:0x00000000
------------------------------------------------------------------------
 58494645 4e464549 0106ba33
 <32 bytes per line>
BBED> dump /v
 File: /tmp/t_xifenfe.tab (0)
 Block: 4       Offsets: 8180 to 8191  Dba:0x00000000
-------------------------------------------------------
 58494645 4e464549 0106ba33          l XIFENFEI...3
 <16 bytes per line>
BBED> sum
Check value for File 0, Block 4:
current = 0xd332, required = 0xf332
BBED> sum apply
Check value for File 0, Block 4:
current = 0xf332, required = 0xf332
BBED> set offset 8073
        OFFSET          8073
BBED> dump /v
 File: /tmp/t_xifenfe.tab (0)
 Block: 4       Offsets: 8073 to 8191  Dba:0x00000000
-------------------------------------------------------
 00000000 00000000 00000000 00000000 l ................
 00000000 00000000 00000000 00000000 l ................
 00000000 00000000 00000000 00000000 l ................
 00000000 00000000 00000000 00000000 l ................
 00000000 00000000 00000000 00000000 l ................
 00000000 00000000 00002c01 0202c103 l ..........,.....
 03786666 2c010202 c1020858 4946454e l .xff,......XIFEN
 46454901 06ba33                     l FEI...3
 <16 bytes per line>
BBED> exit

dd导入修改后数据验证

--会话1关闭数据库
[oracle@rac1 ~]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Sun Apr 29 22:48:51 2012
Copyright (c) 1982, 2011, Oracle.  All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options
SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
--会话2导入bbed修改后数据
[root@rac1 ~]# dd of=/dev/sdb2 bs=1k count=64 seek=1118208 if=/tmp/t_xifenfe.tab
64+0 records in
64+0 records out
65536 bytes (66 kB) copied, 0.0014908 seconds, 44.0 MB/s
--会话1启动数据库库查询
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options
[oracle@rac1 ~]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Sun Apr 29 22:51:00 2012
Copyright (c) 1982, 2011, Oracle.  All rights reserved.
Connected to an idle instance.
SQL> startup
ORACLE instance started.
Total System Global Area  535662592 bytes
Fixed Size                  1346140 bytes
Variable Size             411043236 bytes
Database Buffers          117440512 bytes
Redo Buffers                5832704 bytes
Database mounted.
Database opened.
SQL> select * from t_xifenfei;
        ID NAME
---------- ----------
         1 XIFENFEI
         2 xff