Veritas File System 4.1 Administrator's Guide (HP-UX 11i v3, February 2007)

Quick I/O for Databases
Using VxFS Files as Raw Character Devices
Chapter 11 147
Using VxFS Files as Raw Character Devices
When VxFS with Quick I/O is installed, there are two ways of accessing a file:
• The VxFS interface treats the file as a regular VxFS file
• The Quick I/O interface treats the same file as if it were a raw character device, having performance
similar to a raw device
This allows a database server to use the Quick I/O interface while a backup server uses the VxFS interface.