Installing and Managing HP-UX Virtual Partitions (A.01.01)

Monitor and Shell Commands
Adding and Removing CPU Resources
Chapter 5 111
the hardware path 41, modify min to one, and modify total number
to one:
# vparmodify -p winona2 -d cpu:41 -m cpu:::1 -m cpu::1
NOTE: If you delete only hw_path and leave total as two and leave
min as two, you will still have two bound CPUs.
NOTE When executing any operations relating to bound CPUs (adding,
modifying, or deleting), the target partition must be down.
Migrating an Unbound CPU
After min bound CPUs are assigned to a partition, ( total - min ) CPUs
are assigned to the partition as unbound CPUs. Therefore, to migrate
unbound CPUs, specify total such that ( total - min ) is the number of
unbound CPUs assigned to the target partition.
Examples • To create the partition winona2 with two bound CPUs and one
unbound CPU, set total to three and min to two:
# vparcreate -p winona2 -a cpu::3 -a cpu:::2
• To add an unbound CPU to an existing partition, use the vparmodify
command to either modify the total number of CPUs (-m
cpu:: total ) or add to the total number of CPUs (-a cpu:: total ).
For example, to add one unbound CPU to the partition winona2,
which already has three CPUs, two of which are bound, you can
either modify total to four:
winona1# vparmodify -p winona2 -m cpu::4
or add one to total :
winona1# vparmodify -p winona2 -a cpu::1
• To delete one unbound CPU from the partition winona2, which
already has four CPUs:
winona1# vparmodify -p winona2 -m cpu::3
or
winona1# vparmodify -p winona2 -d cpu::1