# vxvol [-g diskgroup] set drl=off volume
# vxvol [-g diskgroup] set drl=on volume
# vxvol [-g diskgroup] set drl=sequential volume
You can use these commands to change the DRL policy on a volume by first disabling and then re-enabling DRL as required. If a data change map (DCM, used with Veritas Volume Replicator) is attached to a volume, DRL is automatically disabled .