Adds support for dynamic memory in Hyper-V

Registered by Alessandro Pilotti on 2013-05-15

Hyper-V supports memory ballooning to improve VM density with a feature called dynamic memory.

Dynamic memory needs to be enabled at the VM level in the Nova Hyper-V driver.
Smart Paging must be configured as well in order to improve the reliability in case of memory oversubscription.

The configuration dan be done via standard OpenStack configuration options including:

-Enabling / disabling dynamic memory
-Percentage of memory to be initially assigned
-Smart paging file location
-Hyper-V memory buffer percentage

For details:

http://technet.microsoft.com/en-us/library/hh831766.aspx

Blueprint information

Status:
Complete
Approver:
Russell Bryant
Priority:
Low
Drafter:
Alessandro Pilotti
Direction:
Approved
Assignee:
Alessandro Pilotti
Definition:
Approved
Series goal:
Accepted for havana
Implementation:
Implemented
Milestone target:
milestone icon 2013.2
Started by
Alessandro Pilotti on 2013-07-10
Completed by
Alessandro Pilotti on 2013-09-05

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Gerrit topic: https://review.openstack.org/#q,topic:bp/hyper-v-dynamic-memory,n,z

Addressed by: https://review.openstack.org/38791
    Adds Hyper-V dynamic memory support

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