oracle 11G 的核心日志位置

oracle 10g 核心日志的位置默认位于admin/bdump 下alter_sid.ora，但是oracle11g呢？看了一下admin下面只有adump dpdump没有bdump

查询文档发现

SQL> select value from v$diag_info where name ='Diag Alert';


 select value from v$diag_info where name ='Diag Trace';
VALUE
--------------------------------------------------------------------------------
/opt/u01/app/oracle/diag/rdbms/cwt/cwt/alert

其实就是在diag/rdbms/sid下面的 

/opt/u01/app/oracle/diag/rdbms/cwt/cwt/alert 这个文件只有xml

[oracle@rhel6-5 ~]$ sqlplus "/as sysdba"

SQL*Plus: Release 11.2.0.4.0 Production on Wed May 21 21:12:51 2014

Copyright (c) 1982, 2013, Oracle. All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> select value from v$diag_info where name ='Diag Trace';

VALUE
--------------------------------------------------------------------------------
/opt/u01/app/oracle/diag/rdbms/cwt/cwt/trace

/opt/u01/app/oracle/diag/rdbms/cwt/cwt/trace 这个目录下面就是原来的bdump目录。