6.0

Procedure
1 In the vSphere Client inventory, right-click the virtual machine and select Edit Settings.
2 Click the Resources tab and select Memory.
3 Allocated the memory capacity for this virtual machine.
Option Description
Shares
The values Low, Normal, High, and Custom are compared to the sum of
all shares of all virtual machines on the server. You can use share
allocation symbolic values to configure their conversion into numeric
values.
Reservation
Guaranteed memory allocation for this virtual machine.
Limit
Upper limit for this virtual machine’s memory allocation.
Unlimited
No upper limit is specified.
4 Click OK to save your changes.
Change Memory Hot-Add Settings in the vSphere Client
Memory hot add lets you add memory resources for a virtual machine while the machine is powered on.
Prerequisites
n
The virtual machine has a guest operating system that supports Memory hot add functionality.
n
The virtual machine is using hardware version 7 or later.
n
VMware Tools is installed.
Procedure
1 In the vSphere Client inventory, right-click the virtual machine and select Edit Settings.
2 Click the Options tab and under Advanced, select Memory/CPU Hotplug.
3 Enable or disable memory hot add.
n
Enable memory hot add for this virtual machine.
n
Disable memory hot add for this virtual machine.
4 Click OK to save your changes.
Associate Memory Allocations with a NUMA Node in the vSphere Client
You can specify that all future memory allocations on a virtual machine use pages associated with a single
NUMA node (also known as manual memory affinity). When the virtual machine uses local memory, the
performance improves on that virtual machine.
The following conditions apply to memory optimization with NUMA:
n
The NUMA option is available on the Advanced Memory Resources page only if the host uses NUMA
memory architecture.
n
Affinity settings are meaningful only when used to modify the performance of a specific set of virtual
machines on one host. This option is not available when the virtual machine resides on a DRS cluster.
All affinity values are cleared when you move the virtual machine to a new host.
n
You can specify nodes to use for future memory allocations only if you have also specified CPU affinity.
If you make manual changes only to the memory affinity settings, automatic NUMA rebalancing does
not work properly.
Chapter 15 Configuring Virtual Machines in the vSphere Client
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