Home > Veritas Storage Foundation™ for Oracle Manual Pages
QIO_GETDBFILES_ORA (1) |
|
User Commands |
Table of contents
qio_getdbfiles_ora, qio_convertdbfiles_ora - convert VxFS files to Quick
I/O files
qio_getdbfiles_ora
[ -a | -h ]
qio_convertdbfiles_ora [ -a | -f | -h | -i | -u ]
Veritas Storage Foundation for Oracle.
To determine whether this product is installed on an \1 system, enter:
lslpp -L VRTSdbed
These commands are the Oracle-specific version of the
qio_getdbfiles
and
qio_convertdbfiles
commands, which are available in the /opt/VRTSdbed/bin
directory. These commands are used to identify
Oracle database files and convert them to use Quick I/O.
In an Oracle environment, these commands are called directly
by the
qio_getdbfiles
and
qio_convertdbfiles
commands. To use these commands, the
ORACLE_SID
environment variable must be set.
For general usage information for the
qio_getdbfiles
and
qio_convertdbfiles
commands, see the corresponding man pages.
The following options are supported by the
qio_getdbfiles_ora
command:
-
-a
-
Includes all datafiles. The default behavior is to exclude
any database files that the qio_getdbfiles command
identifies as potential sparse files. This option
should be used for debugging only, as sparse database files
are not candidates for use with the Quick I/O driver.
-
-h
-
Shows command information.
The following options are supported by the
qio_convertdbfiles_ora
command:
-
-a
-
Changes regular files to Quick I/O files using absolute pathnames. Use this
option when symbolic links need to point to absolute pathnames.
The default behavior is to use relative pathnames, which are more
portable when moving database directories or recovering from backup.
-
-f
-
Reports on current fragmentation levels for files listed in the mkqio.dat
file. Fragmentation is reported at four levels: not fragmented,
slightly fragmented, fragmented, and highly fragmented.
-
-h
-
Shows command information.
-
-i
-
Creates extra links for all database files and log files in the
/dev directory to support the SAP brbackup command.
-
-u
-
Changes Quick I/O files back to regular files. Use this option to undo changes
made by a previous run of the
qio_convertdbfiles
command.
Converting existing database files to Quick I/O files may not be
the optimal thing to do if these files are fragmented. In this case,
creating new files with the
qiomkfile
command (which are guaranteed not to be fragmented) and converting the
data from the old files (using a command such as dd) is recommended.
You must be logged in as the Oracle Database Administrator (normally
the user oracle) to run these commands.
The qio_getdbfiles_ora command must query the database to gather
a list of datafiles to be converted, which requires direct access to
the database.
The qio_convertdbfiles_ora command expects all files to be owned by the
Database Administrator.
Running the
qio_convertdbfiles_ora
command with any option but
-f
while the database is up and running can cause
severe problems with your database, including data loss and corruption.
Make sure the database is shut down before running this command.
While processing a file named
dbfile,
the
qio_convertdbfiles
command (with no
options specified) renames the file
dbfile
to
.dbfile
and creates a symbolic link to
.dbfile
with the Quick I/O extension. By default, the symbolic link uses a relative
pathname.
$ cd /testvxfs
$ ls -l
-rw-r----- 1 oracle dba 104857600 May 2 13:42 dbfile
$ /opt/VRTSdbed/bin/qio_getdbfiles
$ cat mkqio.dat
/testvxfs/dbfile 104857600
Shut down the Oracle database server and then convert files.
$ /opt/VRTSdbed/bin/qio_convertdbfiles_ora
$ ls -alL d* .d*
-rw-r----- 1 oracle dba 104857600 May 2 13:42 .dbfile
crw-r----- 1 oracle dba 45, 1 May 3 12:18 dbfile
$ ls -al d* .d*
-rw-r----- 1 oracle dba 104857600 May 2 13:42 .dbfile
lrwxrwxrwx 1 oracle dba 17 May 3 12:18 dbfile -> .dbfile::cdev:vxfs:
Start up the Oracle database server.
qio_convertdbfiles(1M),
qio_getdbfiles(1M),
vxgrowfs(1M),
oracle_edition(7)
Veritas Storage Foundation for Oracle Administrator's Guide
Last updated: 15 Jan 2006
Copyright ©2009 Symantec Corporation
All rights reserved.