You can use the Integrated Virtualization Manager to
define a shared memory pool, if the managed system supports the PowerVM™ Active Memory Sharing technology
for using shared memory.
A shared memory
pool is a defined collection of physical memory
blocks that are managed as a single memory pool by the hypervisor.
When
you define a shared memory pool, you specify the Assigned memory and
the Paging storage pool attributes for the memory pool. The assigned
memory value determines the size of the memory pool. The paging storage
pool attribute determines which storage pool provides paging space
devices for shared memory partitions that use the shared memory pool.
Before
you start, complete the following tasks:
- Enter the activation
code for the PowerVM Enterprise Edition.
For instructions,
see Entering the activation
code for PowerVM Editions using
the Integrated Virtualization Manager.
The
ability to share memory among multiple logical partitions is known
as the PowerVM Active Memory Sharing technology.
The PowerVM Active Memory Sharing technology
is available with the PowerVM Enterprise Edition for which
you must obtain and enter a PowerVM Editions activation
code.
- Ensure that your configuration meets the configuration
requirements
for shared memory. To review the requirements, see Configuration requirements
for shared memory.
- Complete the required preparation
tasks. For instructions, see Preparing
to configure shared memory.
- Use any role other than
View Only to perform this task. The View
Only role can view the properties, but it cannot change them.
To define the shared memory pool, complete the following
steps in the Integrated Virtualization Manager:
- From the navigation area, select View/Modify
Shared Memory Pool under Partition Management. The Memory tab of the View/Modify
System Properties page is displayed.
- Click Define
Shared Memory Pool.
- Specify the
amount of physical memory that you want to
assign to the shared memory pool.
- Select a
storage pool that is logical volume-based
to act as the paging storage pool for the shared memory pool. The storage pool that you select as the paging storage pool
provides paging space devices for logical partitions that use shared
memory.
- Click OK. The creation
of the shared memory pool is marked as pending.
- Click Apply to
complete the creation.
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