ORA-1157 or DB Hang During: ALTER DATABASE OPEN MIGRATE (Doc ID 1533585.1)

Last updated on DECEMBER 19, 2016

Applies to:

Oracle Database - Enterprise Edition - Version and later
Oracle Solaris on SPARC (64-bit)
Oracle Solaris on x86-64 (64-bit)


During the upgrade to, during the step of open database migrate

The following errors are reported in the Alertlog :
Dumping diagnostic data in directory=[cdmp_20130215140512], requested by (instance=1, osid=4700 (DBW0)), summary=[abnormal process termination].
ORA-01157: cannot identify/lock data file 1801 - see DBWR trace file
ORA-01110: data file 1801:
ORA-1157 signalled during: ALTER DATABASE OPEN MIGRATE...

and instance can't open in migrate mode


DB hangs during open the open im Migrate mode .


 upgrading the instance to


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