Bug 1196945

Summary:	[RFE][nova]: Tracking shared storage in scheduler
Product:	Red Hat OpenStack	Reporter:	RHOS Integration <rhos-integ>
Component:	RFEs	Assignee:	RHOS Maint <rhos-maint>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	unspecified	CC:	markmc, yeylon
Target Milestone:	---	Keywords:	FutureFeature
Target Release:	7.0 (Kilo)
Hardware:	Unspecified
OS:	Unspecified
URL:	https://blueprints.launchpad.net/nova/+spec/tracking-shared-storage
Whiteboard:	upstream_milestone_none upstream_definition_new upstream_status_unknown
Fixed In Version:		Doc Type:	Enhancement
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:		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 2015-02-27 05:02:00 UTC

Cloned from launchpad blueprint https://blueprints.launchpad.net/nova/+spec/tracking-shared-storage.

Description:

We should tracking the shared storage. There are some benefit for this:

1. we needn't specified 'on_shared_storage' parameter when evacuate. Also needn't specified 'block_migration' when live-migration.

2. We also can implement rescheduler when start stopped instance.  Currently the start/stop instance won't release the instance resource on the compute node, also won't reschedule after start the stopped instance.

3. And when live-migrate and evacuate, scheduler can choice host that have shared-storage with previous host.


Specification URL (additional information):

None