HP-UX Virtual Partitions Administrator's Guide (includes A.03.05 and A.04.05)

— keira1# vparmodify -p keira2 -a cpu::2
keira1# vparmodify -p keira2 -d cpu::1
— keira1# vparmodify -p keira2 -a mem::1024
keira1# vparmodify -p keira2 -d mem::512
• In the same command, you cannot make changes to both memory and CPU. For example,
the following are illegal:
— keira1# vparmodify -p keira2 -a cpu::2 -a mem::1024
CPU: Deleting CPUs Summary
• The current boot processor can not be deleted from a virtual partition. (Use vparstatus
-v to determine the current boot processor.) If you wish to delete a specific CPU that is being
used as a boot processor by a booted virtual partition, you will need to shutdown the virtual
partition and then delete the desired CPU.
CPU: vparstatus
• When a virtual partition is down, the CPUs assigned to that partition are reserved to that
partition and cannot be used for other partitions. For example, vparstatus does not show
any CPU assigned as the boot processor. The boot processor is not assigned until the virtual
partition is actually booted.
• If a virtual partition is down and assigned only one CPU, a CPU will be reserved by the
vPars Monitor, making it unavailable. The specific CPU reserved is not determined until
boot time. As a result, while the virtual partition is down, vparstatus -A, which shows
available resources, will show all the possible paths of unassigned CPUs but the count of
available CPUs will be one less. The count reflects the actual number of available CPUs
because one CPU is reserved for the down virtual partition.
CPU: Counts Summary
• At all times, the rule of min<=total<=max is enforced.
• When adding by CLP, the total count changes whether the partition is up or down.
• When adding by hardware path, the total count changes only when the partition is up. The
total does not change if the specified CPU is already assigned to the partition.
• When adding by hardware path and the partition is down, you cannot have the number of
CPUs added by hardware path exceed the current total value.
CPU: Notes on vPars Syntax, Rules, and Output 199