Citrix Systems 6 manual Display the Dynamic Memory Properties of a VM, Updating Memory Properties

xe vm-param-get uuid=<uuid> param-name=memory-static-{min,max}

For example, the following displays the static maximum memory properties for the VM with the uuid beginning ec77:

xe vm-param-get uuid= \ ec77a893-bff2-aa5c-7ef2-9c3acf0f83c0 \ param-name=memory-static-max; 268435456

This shows that the static maximum memory for this VM is 268435456 bytes (256MB).

Display the Dynamic Memory Properties of a VM

To display the dynamic memory properties, follow the procedure as above but use the command param- name=memory-dynamic:

1.Find the uuid of the required VM:

xe vm-list

2.Note the uuid, and then run the command param-name=memory-dynamic:

xe vm-param-get uuid=<uuid> param-name=memory-dynamic-{min,max}

For example, the following displays the dynamic maximum memory properties for the VM with uuid beginning ec77

xe vm-param-get uuid= \ ec77a893-bff2-aa5c-7ef2-9c3acf0f83c0 \ param-name=memory-dynamic-max; 134217728

This shows that the dynamic maximum memory for this VM is 134217728 bytes (128MB).

Updating Memory Properties

Warning:

It is essential that you use the correct ordering when setting the static/dynamic minimum/ maximum parameters. In addition you must not invalidate the following constraint:

0 ≤ memory-static-min ≤ memory-dynamic-min ≤ memory-dynamic-max

≤memory-static-max

Update the static memory range of a virtual machine:

xe vm-memory-static-range-set uuid=<uuid> min=<value>max=<value>

Update the dynamic memory range of a virtual machine:

xe vm-memory-dynamic-range-set \ uuid=<uuid> min=<value> \ max=<value>

Specifying a target is particularly useful in virtual server environments, and in any situation where you know exactly how much memory you want a guest to use. XenServer will adjust the guest's memory allocation to meet the target you specify. For example:

xe vm-target-set target=<value> vm=<vm-name>

Update all memory limits (static and dynamic) of a virtual machine:

65