yellow% sudo newfs_hfs -h -b 1024 -v TESTDISK /dev/disk2s3
Initialized /dev/rdisk2s3 as a 114345 MB HFS volume
yellow% sudo newfs_hfs -N -v TESTDISK /dev/disk2s3
234179424 sectors (512 bytes per sector)
HFS Plus format parameters:
volume name: "TESTDISK"
block-size: 4096
total blocks: 29272428
first free catalog node id: 16
catalog b-tree node size: 8192
initial catalog file size: 26214400
extents b-tree node size: 4096
initial extents file size: 7340032
initial allocation file size: 3661824 (894 blocks)
data fork clump size: 65536
resource fork clump size: 65536