Hello

Take a look at the uvconfig file:

# 64BIT_FILES - This sets the default mode used to
# create static hashed and dynamic files.
# A value of 0 results in the creation of 32-bit
# files. 32-bit files have a maximum file size of
# 2 gigabytes. A value of 1 results in the creation
# of 64-bit files (ONLY valid on 64-bit capable platforms).
# The maximum file size for 64-bit
# files is system dependent. The default behavior
# may be overridden by keywords on certain commands.
64BIT_FILES 0