Bug 1047421

Summary:	[RFE][nova]: Option to prevent dd on compute by deleting lv
Product:	Red Hat OpenStack	Reporter:	RHOS Integration <rhos-integ>
Component:	openstack-nova	Assignee:	RHOS Maint <rhos-maint>
Status:	CLOSED DUPLICATE	QA Contact:	Ami Jeain <ajeain>
Severity:	low	Docs Contact:
Priority:	unspecified
Version:	unspecified	CC:	markmc, ndipanov, sgordon, yeylon
Target Milestone:	Upstream M3	Keywords:	FutureFeature, Triaged, Upstream
Target Release:	5.0 (RHEL 7)
Hardware:	Unspecified
OS:	Unspecified
URL:	https://blueprints.launchpad.net/nova/+spec/lvm-clear-option
Whiteboard:	upstream_milestone_icehouse-3 upstream_status_implemented upstream_definition_approved
Fixed In Version:		Doc Type:	Enhancement
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2014-01-28 19:38:30 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description RHOS Integration 2013-12-31 05:01:14 UTC

Cloned from launchpad blueprint https://blueprints.launchpad.net/nova/+spec/lvm-clear-option.

Description:

To increase the performance of any instances I've tested in combination with libvirt and kvm some cases. KVM + Block devices seems to be the fastest but I've found a show stopper. Every time if i delete an instance nova will do a dd on the deleted volume and this takes a long time and consume a lot of power.

I've found in the code (https://github.com/openstack/nova/blob/master/nova/virt/libvirt/utils.py#L350) a comment to make this configurable as by cinder volumes (scure delete). This should be done otherwise is lvm on a compute in a production system in my cases not usable.

Cheers
Heiko


Specification URL (additional information):

None

Comment 2 Stephen Gordon 2014-01-28 19:38:30 UTC


*** This bug has been marked as a duplicate of bug 1057371 ***