Managing the memory configuration of a logical partition

You can use the Hardware Management Console (HMC) to change the memory configuration of a logical partition. For example, you can change the Virtual I/O Server logical partitions that are assigned to a logical partition that uses shared memory, change the memory mode of a logical partition, and dynamically add and remove dedicated or shared memory to and from a logical partition.

Changing the paging VIOS partitions assigned to a shared memory partition
You can use the Hardware Management Console (HMC) to change the primary and secondary Virtual I/O Server logical partitions (hereafter referred to as paging VIOS partitions) that are assigned to a logical partition that uses shared memory. You can also add or remove a secondary paging VIOS partition to or from a logical partition that uses shared memory (hereafter referred to as a shared memory partition).
Changing the Active Memory Expansion factor for AIX logical partitions
You can dynamically change the Active Memory™ Expansion factor for an AIX® logical partition by using the Hardware Management Console (HMC). Changing the Active Memory Expansion factor for a logical partition increases or decreases the desired degree of expanded memory capacity for the logical partition.
Changing the memory weight of a shared memory partition
You can use the Hardware Management Console (HMC) to change the memory weight of a logical partition that uses shared memory (hereafter referred to as a shared memory partition). Changing the memory weight changes the probability that the shared memory partition receives physical memory from the shared memory pool in relation to other shared memory partitions.
Changing the memory mode of a logical partition
You can create multiple partition profiles for a logical partition by using the Hardware Management Console (HMC). Some of the partition profiles can specify dedicated memory and some of the partition profiles can specify shared memory. By creating partition profiles that specify both dedicated memory and shared memory for the same logical partition, you can change the memory mode of the logical partition by activating different partition profiles.
Managing dedicated memory dynamically
You can add, remove, and move physical memory dynamically to and from running logical partitions that use dedicated memory by using the Hardware Management Console (HMC). This allows you to adjust the physical memory allocated to each logical partition that uses dedicated memory without having to shut down the logical partitions.
Managing shared memory dynamically
You can dynamically add and remove logical memory and I/O entitled memory to and from a logical partition that uses shared memory (hereafter referred to as a shared memory partition) using the Hardware Management Console (HMC).

Parent topic: Managing logical partitions

Last updated: Fri, July 05, 2019