Oracle Database physical files and file system details
- From: Kenneth Fowler <kenneth.r.fowler@xxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Fri, 12 Oct 2012 16:13:30 -0400
Hi List,
Can anyone tell me if there is a v$, x$ or dba_ table/view that
contains file system details for the physical files that make up an
oracle database?
I recently accepted a job (Oracle DBA) at a new company and I notice
that the standard database layout here sometimes makes use of Unix
soft links. Lets say the database files from dba_data_files look like
this...
SQL> select version from v$instance;
VERSION
-----------------
11.2.0.2.0
SQL> select file_name from dba_data_files;
FILE_NAME
------------------------------------------------------------------------------------------------------------------------------------
/u01/oradata/dbarep/system01.dbf
/u01/oradata/dbarep/sysaux01.dbf
/u01/oradata/dbarep/undotbs01.dbf
/u01/oradata/dbarep/users01.dbf
But there are soft links involved...
$ ls -ald /u01
lrwxrwxrwx 1 oracle dba 4 Feb 4 2011 /u01 -> /mnt/nfsstore/oracle
So the database files are stored in
/mnt/nfsstore/oracle/oradata/dbarep which happens to be an NFS file
system that is giving a lot of trouble lately. I have already set up
an automated process that will collect database metadata for loading
into a DBA repository for analysis and reporting etc. I already
collect dba_data_files, dba_temp_files along with a lot of other stuff
however I checked around (Google mostly) but cannot find any reference
to v$, x$ or dba_ tables/views that can tell me what file system a
file happens to be on and if it is local or NFS etc. I realize that I
could get this information by using Unix commands (df for example) but
that starts to get a bit messy so my hope was that I could somehow get
the information from the database (sqlplus). Any ideas?
Thanks,
Ken.
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