DATADIR

Where UDM(P) stores its data

In short, for version 1 in /mnt/data/, from version 2 in /data/

The documentation will refer to $DATADIR where needed. To copy&paste examples if required, call export DATADIR=/mnt/data (for version 1) or `export DATADIR=/data" (for version 2 and later) before entering other commands.