ORA-01157: Cannot Identify/Lock Data File and ORA-27050

(Doc ID 268061.1)

Last updated on AUGUST 31, 2016

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 9.2 to 11.2]
Information in this document applies to any platform.
***Checked for relevance on 29-Aug-2016***


The following messages are signalled in the alert.log when issuing alter database datafile:

ORA-01157: cannot identify/lock data file # - see DBWR trace file
ORA-01110: data file #: 'filename'
ORA-27050: function called with invalid FIB/IOV structure
Additional information: 11

You also see the following messages in the alert.log on startup:

Oracle instance running on a system with low open file descriptor limit.


Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms