Citrix Systems 5.6 manual Updating memory properties

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 static 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

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

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

Note:

•To allocate a specific amount memory to a VM that won't change, set the Dynamic Maximum and Dynamic Minimum to the same value.

•You cannot increase the dynamic memory of a VM beyond the static maximum.

•To alter the static maximum of a VM – you will need to suspend or shut down the VM.

67