VERITAS File System 4.1 Administrator's Guide

Quick I/O for Databases
Enabling and Disabling Quick I/O
Chapter 11172
Enabling and Disabling Quick I/O
If the Quick I/O feature is licensed and installed, Quick I/O is enabled by default when a file
system is mounted. Alternatively, the VxFS mount -o qio command enables Quick I/O. The
mount -o noqio command disables Quick I/O.
If Quick I/O is not installed or licensed, a file system mounts by default without Quick I/O and
no error message is displayed. However, if you specify the -o qio option, the mount command
terminates without mounting the file system.