Preparing Existing Database Storage for Oracle Disk Manager

Non-Quick I/O files in a VxFS file system work with Oracle Disk Manager without any changes. The files are found and identified for Oracle Disk Manager I/O by default. To take full advantage of Oracle Disk Manager datafiles, files should not be fragmented. See Understanding Fragmentation for information on defragmenting a file.

If you are using Quick I/O files in a VxFS file system and you want to move to Oracle Disk Manager, convert the Quick I/O files to normal files using the qio_convertdbfiles -u command. See Converting Quick I/O Files to Oracle Disk Manager Files for more information.

If you plan to convert to Oracle9i or later, convert your database and then migrate your storage to VxFS files.