How to Restore the Database Using AMDU after Diskgroup Corruption

renjixinchina發表於2014-02-19
原文網址 : http://blog.itpub.net/15747463/viewspace-1083815/
RESTDatabase
 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 -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 to < newly extracte location>

10. open the database

來自 “ ITPUB部落格 ” ，連結：http://blog.itpub.net/15747463/viewspace-1083815/，如需轉載，請註明出處，否則將追究法律責任。

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