SQL> conn /as sysdba
ERROR:
ORA-09925: Unable to create audit trail file
Linux-x86_64 Error: 2: No such file or directory
Additional information: 9925
ORA-01075: you are currently logged on


SQL> exit
[oracle@class118 orcldg]$ 
[oracle@class118 orcldg]$ 
[oracle@class118 orcldg]$ 
[oracle@class118 orcldg]$ ps -elf | grep smon
0 S oracle    38487      1  0  80   0 - 259494 semtim 00:19 ?       00:00:00 ora_smon_orcldg
0 S oracle    38788  38662  0  80   0 - 25819 pipe_w 00:32 pts/5    00:00:00 grep smon
[oracle@class118 orcldg]$ kill -9 38487
[oracle@class118 orcldg]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on Sun Mar 1 00:33:10 2020

Copyright (c) 1982, 2009, Oracle.  All rights reserved.

Connected to an idle instance.

SQL>