1  –  RUJ Alloc Blocks field

    This field indicates the number of blocks the .ruj file is
    created with. The default value is 127 blocks. You can override
    the default value with the RDM$BIND_RUJ_ALLOC_BLKCNT logical
    name.

2  –  RUJ Extend Blocks field

    This field indicates the number of blocks the .ruj file is
    extended by. The default value is 127 blocks. You can override
    the default value with the RDM$BIND_RUJ_EXTEND_BLKCNT logical
    name.