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Bug 1056380 - [RFE][nova]: Implement shrinking disk for libvirt
Summary: [RFE][nova]: Implement shrinking disk for libvirt
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: RFEs
Version: unspecified
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
: ---
Assignee: RHOS Maint
QA Contact:
Whiteboard: upstream_milestone_none upstream_stat...
Depends On:
TreeView+ depends on / blocked
Reported: 2014-01-22 05:03 UTC by RHOS Integration
Modified: 2015-03-19 17:12 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: Enhancement
Doc Text:
Clone Of:
Last Closed: 2015-03-19 17:12:17 UTC
Target Upstream Version:

Attachments (Terms of Use)

Description RHOS Integration 2014-01-22 05:03:49 UTC
Cloned from launchpad blueprint


The actual implementation of libvirt for openstack does not resize the disk down during a scale down of an instance that needs a disk resize. Then the actual implementation just skip this step silently. (

    We need to add this feature to the driver libvirt.

There is a discuss on:

"""About the risk of the implementation, in the workflow of a resize, every modifications on the disk are doing in a copy. The user is asked to check if all run well: during this step the user can check the console-log and connect itself on the instance to check if all is OK.
    if all is ok he just have to confirm the resize (resize-confirm).
    if something wrong he can do a revert (resize-revert)

The implementation of xenapi seems to support this feature. For vmware, it is not implemented yet (only extend)."""

Specification URL (additional information):


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