For Linux, the VLDB (volume location database) back-end database file is /var/opt/novell/dfs/vldb.dat. The file is owned by the code-specified DFS user, which is the root user. The DFS code sets POSIX access rights for the file as mode 644. This should not be modified by the administrator.
Whenever the VLDB is updated, it makes a copy of vldb.dat called vldb.bak. Its access rights are set by the code and should not be modified by the administrator.