Bug 984291 - volume clone operation change allocation type to pre-allocated [LVM]
Summary: volume clone operation change allocation type to pre-allocated [LVM]
Keywords:
Status: CLOSED UPSTREAM
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: openstack-cinder
Version: 3.0
Hardware: x86_64
OS: Linux
high
high
Target Milestone: rc
: 5.0 (RHEL 7)
Assignee: Eric Harney
QA Contact: Dafna Ron
URL:
Whiteboard: stalled_upstream
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-07-14 14:04 UTC by Haim
Modified: 2016-04-26 17:52 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: Enhancement
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-03-20 16:23:04 UTC
Target Upstream Version:
Embargoed:

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System ID Private Priority Status Summary Last Updated
Launchpad 1224671 0 None None None Never

Description Haim 2013-07-14 14:04:23 UTC 
Description of problem:


while cloning a 2G volume, I noticed it take quite some time for operation to complete, then I noticed that cinder basically dd source volume. 
note that source volume is empty from data POV. 

expected results:

thin-provisioning allocation (write only used data)

current results:

every volume is pre-allocated.
Comment 1 Eric Harney 2013-07-17 12:51:08 UTC 
To clarify, this is about the LVM driver, right?
Comment 2 Haim 2013-08-20 09:54:02 UTC 
(In reply to Eric Harney from comment #1)
> To clarify, this is about the LVM driver, right?

indeed.
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