Code:
bash-3.2# ldm list-config
factory-default [next poweron]
config_initial
bash-3.2# ldm set-vcpu 32 primary
bash-3.2# ldm list-config
factory-default [next poweron]
config_initial
bash-3.2#
bash-3.2# prtdiag -v|more
System Configuration: Oracle Corporation sun4v T5240
Memory size: 65312 Megabytes
================================ Virtual CPUs ================================
CPU ID Frequency Implementation Status
------ --------- ---------------------- -------
0 1165 MHz SUNW,UltraSPARC-T2+ on-line
1 1165 MHz SUNW,UltraSPARC-T2+ on-line
2 1165 MHz SUNW,UltraSPARC-T2+ on-line
3 1165 MHz SUNW,UltraSPARC-T2+ on-line
4 1165 MHz SUNW,UltraSPARC-T2+ on-line
5 1165 MHz SUNW,UltraSPARC-T2+ on-line
6 1165 MHz SUNW,UltraSPARC-T2+ on-line
7 1165 MHz SUNW,UltraSPARC-T2+ on-line
8 1165 MHz SUNW,UltraSPARC-T2+ on-line
9 1165 MHz SUNW,UltraSPARC-T2+ on-line
10 1165 MHz SUNW,UltraSPARC-T2+ on-line
11 1165 MHz SUNW,UltraSPARC-T2+ on-line
12 1165 MHz SUNW,UltraSPARC-T2+ on-line
13 1165 MHz SUNW,UltraSPARC-T2+ on-line
14 1165 MHz SUNW,UltraSPARC-T2+ on-line
15 1165 MHz SUNW,UltraSPARC-T2+ on-line
16 1165 MHz SUNW,UltraSPARC-T2+ on-line
17 1165 MHz SUNW,UltraSPARC-T2+ on-line
18 1165 MHz SUNW,UltraSPARC-T2+ on-line
19 1165 MHz SUNW,UltraSPARC-T2+ on-line
20 1165 MHz SUNW,UltraSPARC-T2+ on-line
21 1165 MHz SUNW,UltraSPARC-T2+ on-line
22 1165 MHz SUNW,UltraSPARC-T2+ on-line
23 1165 MHz SUNW,UltraSPARC-T2+ on-line
24 1165 MHz SUNW,UltraSPARC-T2+ on-line
25 1165 MHz SUNW,UltraSPARC-T2+ on-line
26 1165 MHz SUNW,UltraSPARC-T2+ on-line
27 1165 MHz SUNW,UltraSPARC-T2+ on-line
28 1165 MHz SUNW,UltraSPARC-T2+ on-line
29 1165 MHz SUNW,UltraSPARC-T2+ on-line
30 1165 MHz SUNW,UltraSPARC-T2+ on-line
31 1165 MHz SUNW,UltraSPARC-T2+ on-line
======================= Physical Memory Configuration ========================
bash-3.2#
bash-3.2# ldm add-config primary
bash-3.2#
bash-3.2#
bash-3.2# ldm list-config
factory-default
config_initial
primary [current]
bash-3.2#
bash-3.2#