The /etc/NCPVolumes file is an XML file that contains an entry for each mounted volume. It lists the volume’s name and the path for the volume’s primary file tree (PRIMARY_ROOT). If the volume is a shadow volume, it also shows the path for the secondary file tree (SHADOW_ROOT). Using this data file, a backup utility can easily locate each mounted NCP volume and find its primary and secondary file trees.
For example, the following XML entry defines the DST shadow volume named VOL1: