POWER7 information

Memory resource assignment in partition profiles

When you create a partition profile for a logical partition, you set up the desired, minimum, and maximum amounts of memory resources that you want for the logical partition.

When you create a partition profile that is set to use dedicated memory, the desired, minimum, and maximum amounts of memory that you specify refer to physical memory in the system. If the desired amount of physical memory is available on the managed system when you activate the partition profile, the logical partition starts with the desired amount of physical memory. However, if the desired amount of physical memory is not available when you activate the partition profile, the physical memory on your managed system is over committed. In that case, if the amount of physical memory that is available on the managed system is equal to or greater than the minimum amount of physical memory in the partition profile, the logical partition starts with the available amount of physical memory. If the minimum amount of physical memory is not available, then the logical partition does not start.

When you create a partition profile that is set to use shared memory, the desired, minimum, and maximum amounts of memory that you specify refer to logical memory. When you activate the partition profile, the logical partition starts with the desired amount of logical memory. You can dynamically add and remove logical memory to and from a running logical partition within the minimum and maximum values set in the partition profile.



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Last updated: Thu, September 20, 2018