CPU: Removing a Bound CPU

To remove a bound CPU from a virtual partition, use the vparmodify command to modify the total and min parameters for the virtual partition.




	NOTE: When executing any operations relating to bound CPUs (adding, modifying, or deleting), the target virtual partition must be `down`.

Example

If the partition winona2 has two bound CPUs and you want only one bound CPU (and you do not want to add any unbound CPUs), set the total and min numbers to one:

winona1# vparmodify -p winona2 -m cpu:::1 -m cpu::1




	NOTE: If you set only the `min` number to one and leave the `total` number set at two, you will still have two CPUs assigned to `winona2`. One bound CPU will be removed from the partition, but one unbound CPU will be added to the partition in order to maintain the `total` of two CPUs.Because one of the value requirements for CPUs is `min` <= `total` and because command line options are processed left to right, when setting both `min` and `total` to one, you need to set `min` to one before setting `total` to one. This is accomplished by specifying the -m cpu:::`min` option before the -m cpu::`total` option.

CPU: Removing a CPU with a Specified Hardware Path

If you had specified a hardware path for a bound CPU, you would delete the specified hw_path and modify the min and total numbers.

Example

If you have two bound CPUs and want to remove the bound CPU at hardware path 41 (and do not want to add any unbound CPUs), delete 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.

CPU: Removing a Bound CPU

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Example

CPU: Removing a CPU with a Specified Hardware Path

Example