Veritas Storage Foundation 5.1 SP1 Advanced Features Administrator"s Guide (5900-1503, April 2011)

Then...If...
the Quick I/O file is not recreated and a
warning message is displayed.
a Quick I/O file is missing and the regular
VxFS file that it is symbolically linked to is
not the original VxFS file
the Quick I/O file is not recreated and a
warning message is displayed.
a Quick I/O file is smaller than the size listed
in the mkqio.dat file
Disabling Quick I/O
Before disabling Quick I/O, make sure the following condition has been met:
The file system you are planning to remount must be located in the
/etc/fstab file.
Prerequisite
The following example shows how to remount file system with Quick I/O disabled:
# /opt/VRTS/bin/mount -V vxfs -o remount,noqio \
/dev/vx/dsk/dbdg/vol01
/db01
Improving DB2 performance with Veritas Quick I/O
Disabling Quick I/O
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