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Creating Missing Datafile from the Backup when Using ASM Failing with: ORA-01136 (Doc ID 1444075.1)

Last updated on OCTOBER 13, 2019

Applies to:

Oracle Database - Enterprise Edition - Version and later
Information in this document applies to any platform.


Restoring the database. One of the files was not backed up.

Creating the missing datafile failing with errors:

SQL> alter database create datafile '/<oracle_home path>/dbs/UNNAMED00221' as '+<DISKGROUP name>';
alter database create datafile '/<oracle_home path>/dbs/UNNAMED00221' as '+<DISKGROUP name>'
ERROR at line 1:
ORA-01136: specified size of file 221 (3200 blocks) is less than original size
of 131104 blocks
ORA-01111: name for data file 221 is unknown - rename to correct file
ORA-01110: data file 221:
'/<oracle_home path>/dbs/UNNAMED00221'


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