I apparently cannot find an answer in the documentation, however initdb states: initdb: directory "/mnt/data1" exists but is not empty It contains a dot-prefixed/invisible file, perhaps due to it being a mount point. Using a mount point directly as the data directory is not recommended. Create a subdirectory under the mount point. and effectively /mnt/data1 is a mountpoint, therefore but belongs to the user of the cluster, therefore the only difference I can see is having '..' belonging to root at the mountpoint or the cluster user within a subdirectory. What's wrong with using a mountpoint? Thanks, Luca
