VERITAS Volume Manager 4.1 Administrator's Guide

Administering Volumes
Disabling FastResync
Chapter 8 301
Disabling FastResync
Use the vxvol command to turn off Persistent or Non-Persistent
FastResync for an existing volume, as shown here:
# vxvol [-g diskgroup] set fastresync=off volume
Turning FastResync off releases all tracking maps for the specified
volume. All subsequent reattaches will not use the FastResync facility,
but perform a full resynchronization of the volume. This occurs even if
FastResync is later turned on.