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Determining the DCO version number

The instant snapshot and DRL-enabled DCO features require that a version 20 DCO be associated with a volume, rather than an earlier version 0 DCO.

 To find out the version number of a DCO that is associated with a volume

1. Use the vxprint command on the volume to discover the name of its DCO:

   # DCONAME='vxprint [-g diskgroup] -F%dco_name volume'

2. Use the vxprint command on the DCO to determine its version number:

   # vxprint [-g diskgroup] -F%version $DCONAME