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. The -o qio and -o noqio mount options enable and disable, respectively, Quick I/O when a file system is mounted.
To enable or disable Quick I/O
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Specify the -o qio mount option to enable Quick I/O:
# mount -V vxfs -o qio MyFS
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Specify the -o noqio mount option to disable Quick I/O:
# mount -V vxfs -o noqio MyFS
