ora-09925 unable to create audit trail file no such file or directory

Question

I have just installed a oracle 12c 12.1.0 DB on a linux machine.

after completing the installation i tried to login to database as sysdba

[oracle@bjorn adump]$ sqlplus sys as sysdba/welcome

SQL*Plus: Release 12.1.0.2.0 Production on Wed Oct 12 16:41:17 2016

Copyright (c) 1982, 2014, Oracle.  All rights reserved.

Enter password:
Connected to an idle instance.

Now i tried to startup the DB using below command

SQL> startup mount
ORA-09925: Unable to create audit trail file
Linux-x86_64 Error: 2: No such file or directory
Additional information: 9925

and this error pop up !

my ENV variable are --

[oracle@bjorn adump]$ echo $ORACLE_BASE
/oracle
[oracle@bjorn adump]$ echo $ORACLE_HOME
/oracle/product/12.1.0/db_1

I have checked into pfile which is $ORACLE_HOME/dbs/init.ora

there is the entry for audit file

audit_file_dest="/oracle/admin/orcl/adump"

I also go to this location and check if the folder exists or nt but the folder was there and it aleady has some files in it like

orcl_m000_21634_20161012143245012051143795.aud

there are lots of file with names like this.

I gave permission to this folder

chmod -R 755 /oracle/admin/orcl/adump

tried creating a new file using

touch afile

and file get created.

It also got connect to the idle session but when i tried to do a startup the error pops up !

Please suggest what i am overlooking here which needs to be corrected.

Answer 1

Usually this could happen because:

1. AUDIT_FILE_DEST is not writable(chown +w $AUDIT_FILE_DEST)
2. $ORACLE_BASE/admin/$ORACLE_SID/adump exists and is not writable
3. $ORACLE_HOME/rdbms/audit is not writable

PS: Make sure to check permissions for the oracle user

Also please check for disk space availability

Answer 2

In our case, one of the drives in one of our 2-node RAC servers was failing - the reason why the OS (Linux) limited anyone's access, including root, to read-only.

The amber light was suppose to turn on but it didn't. It only turned on when we restarted that particular node.

Answer 3

You also have 3 things to verify: - As already mentionned, check free space with df -have - Check if the file system are Read/Write or read-only: cat /proc/mounts - Finally, you can check free inodes space with df -i

Detailled information can be found here: https://www.oracle-scripts.net/unable-to-create-audit-trail-file-read-only-file-system/