Using VERITAS Extension for Oracle Disk Manager

VERITAS Extension for Oracle Disk Manager is specifically designed for Oracle9i or later to enhance file management and disk I/O throughput. The features of Oracle Disk Manager are best suited for databases that reside in a file system contained in VERITAS File System. Oracle Disk Manager allows Oracle9i or later users to improve database throughput for I/O intensive workloads with special I/O optimization.

Oracle Disk Manager reduces administrative overhead by providing enhanced support for Oracle Managed Files. VERITAS Extension for Oracle Disk Manager has Quick I/O-like capabilities, but is transparent to the user. Unlike VERITAS Quick I/O, files managed using VERITAS Extension for Oracle Disk Manager do not require special file naming conventions. The Oracle Disk Manager interface uses regular database files. With Oracle9i or later, you can access both Oracle Disk Manager and Quick I/O files so you have the option to convert or not to convert your old Quick I/O files.

This chapter describes how to set up and use the Oracle Disk Manager feature.

Topics covered in this chapter include:

• Understanding Oracle Disk Manager
• Oracle Disk Manager and Oracle Managed Files
• Setting Up VERITAS Extension for Oracle Disk Manager
• Preparing Existing Database Storage for Oracle Disk Manager
• Converting Quick I/O Files to Oracle Disk Manager Files
• Verifying that Oracle Disk Manager is Configured
• Disabling the Oracle Disk Manager Feature