Enable online extend of in-use Cinder volumes

Registered by Paul Marshall

Online volume extend allows volumes that are attached to instances (in-use)
to be extended without first detaching them. This spec defines a Nova
extension that is required by Cinder to issue an online volume extend,
specifically this requires iSCSI rescan and the ability to return the size of
the volume block device from the compute host that the instance is running on.

Blueprint information

Status:
Not started
Approver:
None
Priority:
Undefined
Drafter:
Paul Marshall
Direction:
Needs approval
Assignee:
None
Definition:
New
Series goal:
None
Implementation:
Unknown
Milestone target:
None

Related branches

Sprints

Whiteboard

(?)

Work Items

This blueprint contains Public information 
Everyone can see this information.