1.使amdu可以在oracle 10g环境中使用
2.使kfed可以在oracle 10g环境中使用
3.amdu如何抽取损坏的ASM磁盘组数据
1.使amdu可以在oracle 10g环境中使用在Oracle 10g环境，并没有自带amdu工具，需要自行去下载：
具体可以参考MOS文档：
Placeholder for AMDU binaries and using with ASM 10g, 11g, 12c (文档 ID 553639.1)
> $cd <your directory> > $export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:`pwd` > or $setenv LD_LIBRARY_PATH ${LD_LIBRARY_PATH}:`pwd` > $export PATH=$PATH:`pwd` or setenv PATH ${PATH}:`pwd` > > or > > $cd <your directory> > $export LIBPATH=$LIBPATH:`pwd` > or $setenv LIBPATH ${LIBPATH}:`pwd` > $export PATH=$PATH:`pwd` or setenv PATH ${PATH}:`pwd`注意：如果是AIX平台，则对应的是设置LIBPATH环境变量。我这里是Linux，所以设置LD_LIBRARY_PATH环境变量：
unzip /tmp/amdu_X86-64.zip export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:`pwd` export PATH=$PATH:`pwd` 2.使kfed可以在oracle 10g环境中使用在Oracle 10g环境kfed需要编译：
ASM tools used by Support : KFOD, KFED, AMDU (文档 ID 1485597.1)
KFED executable comes with installation from 11.1 onwards; for the older version you must build it.
编译方法如下：
$cd $ORACLE_HOME/rdbms/lib $make -f ins_rdbms.mk ikfed 3.amdu如何抽取损坏的ASM磁盘组数据在ASM磁盘组损坏时，如何使用amdu工具来抽取数据库文件：
How to Restore the Database Using AMDU after Diskgroup Corruption (文档 ID 1597581.1)
1. Create pfile of lost database , from database alert.log startup messages. 2. Startup database in nomount 3. Get the controlfile number from db alert log , it will show while starting the database here in this eg. its 256 eg., control_files='+DATA/orcl/controlfile/current.256.709676643' If you have controlfile backup already in non-asm location edit the pfile to point to location of non-asm and then mount the database If you dont have controlfile backup then go to step 4 after determining the file# from step 3 4. $ amdu -diskstring <asm_diskstring> -extract DATA.256 5. shutdown the database and change the control_file location to point to the extracted file location 6. startup mount the database 7. once mounted, get the datafile file numbers using "select name from v$datafile" And get online redo logfile from "select * from v$logfile". 8. Extract all datafiles and redolog files in similar manner 9. alter database rename <datafile 1> to < newly extracte location> 10. open the database实际可以做实验去验证下MOS这个步骤的可行性：
1.创建参数文件
2.启动数据库到nomount状态
3.获取到控制文件的number
4.抽出控制文件
5.关闭数据库，修改control_file值
6.启动数据库到mount状态
7.获取到数据文件、日志文件的number
8.抽取数据文件和redo日志文件
9.重命名数据库文件到新位置
10.打开数据库