Just use the command createcpg with flag -rs (row size), and after creating virtual volumes, associated with that cpg, you will see equal logical disk sizes and equal row size of each logical disk as well.
For example:
cli% createcpg -rs 10 -sdgs 126g -p -devtype FC -t r5 -ha cage test
cli% showld -d
Id Name CPG RAID Own SizeMB RSizeMB RowSz StepKB SetSz Refcnt Avail CAvail -----CreationTime------ ---CreationPattern----
70 b.usr.0 test 5 0/1/3/2 64512 86016 7 128 4 0 cage cage 2014-05-16 16:29:06 FET -p -devtype FC
71 b.usr.1 test 5 1/0/2/3 64512 86016 7 128 4 0 cage cage 2014-05-16 16:29:06 FET -p -devtype FC
72 b.usr.2 test 5 2/3/1/0 64512 86016 7 128 4 0 cage cage 2014-05-16 16:29:06 FET -p -devtype FC
73 b.usr.3 test 5 3/2/0/1 64512 86016 7 128 4 0 cage cage 2014-05-16 16:29:06 FET -p -devtype FC
Also, don't forget to calculate and implement CPG's Growth Increment accorging to your hardware and logical configuration.
