-.I blocksize
-This relation specifies the default blocksize if the user does not
-specify a blocksize on the command line, and the filesystem-type
-specific section of the configuration file does not specify a blocksize.
-.TP
-.I hash_alg
-This relation specifies the default hash algorithm used for the
-new filesystems with hashed b-tree directories. Valid algorithms
-accepted are:
-.IR legacy ,
-.IR half_md4 ,
-and
-.IR tea .
-.TP
-.I inode_ratio
-This relation specifies the default inode ratio if the user does not
-specify one on the command line, and the filesystem-type
-specific section of the configuration file does not specify a default
-inode ratio.
-.TP
-.I inode_size
-This relation specifies the default inode size if the user does not
-specify one on the command line, and the filesystem-type
-specific section of the configuration file does not specify a default
-inode size.
-.TP
-.I reserved_ratio
-This relation specifies the default percentage of filesystem blocks
-reserved for the super-user, if the user does not
-specify one on the command line, and the filesystem-type
-specific section of the configuration file does not specify a default
-reserved ratio. This value can be a floating point number.
-.TP