Add dynamic adjust disk qos support

Registered by Trump.Zhang on 2014-03-11

Currently, OpenStack has support set the disk's QoS when creating Instance or attaching volume to instance. The related blueprints is [1] and [2].

However, we have no method to dynamic adjust the disk's QoS during the instance is running or without detaching the volume.

The implementation of [1] and [2] is based on libvirt driver's capability, and libvirt driver has already support online-tune the disk's QoS. We can add this feature to libvirt driver.

[1] https://wiki.openstack.org/wiki/InstanceResourceQuota
[2] https://blueprints.launchpad.net/cinder/+spec/pass-ratelimit-info-to-nova

Blueprint information

Status:
Started
Approver:
None
Priority:
Undefined
Drafter:
LiangChen
Direction:
Needs approval
Assignee:
LiangChen
Definition:
Drafting
Series goal:
None
Implementation:
Started
Milestone target:
None
Started by
Trump.Zhang on 2014-03-14

Related branches

Sprints

Whiteboard

Removed from next, as next is now reserved for near misses from the last milestone --johnthetubaguyRemoved from next, as next is now reserved for near misses from the last milestone --johnthetubaguy

If you are still working on this, please re-submit via nova-specs. If not, please mark as obsolete, and add a quick comment to describe why. --johnthetubaguy (20th April 2014)

Gerrit topic: https://review.openstack.org/#q,topic:bp/dynamic-adjust-disk-qos,n,z

Addressed by: https://review.openstack.org/88756
    Add dynamic adjust disk qos support

Spec not approved yet, un-targeting blueprint from juno-1 --johnthetubaguy (28th May 2014)

You should not set a milestone target unless the blueprint has been properly prioritized by the project drivers.

(?)

Work Items

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