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

CPU: Specifying Min and Max Limits
The syntax to specify min and max CPUs assigned to a virtual partition is:
-[a|m] cpu:::[min][:max]
where:
a is adding (used with vparcreate or vparmodify)
m is modifying (used with vparmodify)
min
is the minimum number of CPUs for the virtual partition to boot and the minimum number
of CPUs that must remain assigned to the partition
max
is the maximum number of CPUs that can be assigned to the virtual partition
NOTE: The virtual partition must be in the down state to set the min or max value.
The total count of CPUs in the virtual partition must always be greater than or equal to min and
less than or equal to max.
See “CPU: Syntax, Rules, and Notes” (page 231) regarding the new concepts and count rules for
min.
Examples
• To set the minimum number of CPUs to 2:
keira1# vparmodify -p keira2 -m cpu:::2
• To set the minimum number of CPUs to 2 and the maximum to 4:
keira1# vparmodify -p keira2 -m cpu:::2:4
CPU: Adding and Deleting by Total
The basic syntax for adding and deleting CPUs is:
-a|d|m cpu::num
where:
a|d|m specifies adding, deleting, or modifying the total count of CPUs
num
specifies the number of CPUs
NOTE: The virtual partition can be either up or down when using the cpu::num syntax.
When the virtual partition is active, CPUs that were added using the cpu::num syntax can be
deleted only by using either:
• cpu::num syntax (deletion by total), or
• cpu:hw_path syntax (deletion by hardware path)
Deletion by total (cpu::num) is recommended over deletion by hardware path (cpu:hw_path).
Total increases or decreases by num when using the -a or -d options and is set to num when
using the -m option.
vparcreate
With the vparcreate command, you would use the -a option and specify as num the number
of CPUs to allocate to the virtual partition.
If no cpu syntax is given on the vparcreate command line, the default value for total is 1.
228 CPU, Memory, and I/O Resources (A.04.xx)