VERITAS Storage Foundation 4.1 Oracle Administrator's Guide

Chapter 3, Using VERITAS Quick I/O
Prerelease 8 September 2005, 8:54am Understanding Quick I/O
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Depending on whether you are creating a new database or are converting an existing database to
use Quick I/O, you have the following options:
◆ If you are creating a new database:
◆ You can use the qiomkfile command to preallocate space for database files and make
them accessible to the Quick I/O interface. See “Creating Database Files as Quick I/O
Files Using qiomkfile” on page 88 for more information.
◆ You can use the setext command to preallocate space for database files and create the
Quick I/O files. See “Preallocating Space for Quick I/O Files Using the setext Command”
on page 90.
◆ If you are converting an existing database:
◆ You can create symbolic links for existing VxFS files, and use these symbolic links to
access the files as Quick I/O files. See “Accessing Regular VxFS Files as Quick I/O Files”
on page 92 for more information.
◆ You can convert your existing Oracle database files to use the Quick I/O interface using
the qio_getdbfiles and qio_convertdbfiles commands. See “Converting
Oracle Files to Quick I/O Files” on page 94 for more information.