Bug 1258645

Summary:	[RFE][cinder] Volume Replication V2
Product:	Red Hat OpenStack	Reporter:	Sean Cohen <scohen>
Component:	openstack-cinder	Assignee:	Eric Harney <eharney>
Status:	CLOSED ERRATA	QA Contact:	lkuchlan <lkuchlan>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	eharney, mlopes, nlevinki, scohen, sgotliv, yeylon
Target Milestone:	beta	Keywords:	FutureFeature
Target Release:	8.0 (Liberty)
Hardware:	Unspecified
OS:	Unspecified
URL:	http://specs.openstack.org/openstack/cinder-specs/specs/liberty/replication_v2.html
Whiteboard:
Fixed In Version:	openstack-cinder-7.0.0-2.el7ost	Doc Type:	Enhancement
Doc Text:	This enhancement adds a new scaled backend replication implementation (between backends) that leaves the bulk of the work up to the driver, while providing basic admin API methods. This is available where replication is set at the volume types level, and when the cinder driver reports its capabilities. New configuration options are available: replication_enabled - set to True replication_type - async, sync replication_count - Number of replicas	Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-04-07 21:05:46 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Sean Cohen 2015-08-31 22:00:42 UTC

This adds a scaled back replication implementation that leaves the bulk of the work up to the driver.
Providing basic admin API methods to do things like enable/disable and fail-over.  Set up and specification of replication targets for a specific
back end are now intended to be part of the cinder.conf in the driver section itself.

https://blueprints.launchpad.net/cinder/+spec/replication-v2

Comment 4 Sergey Gotliv 2015-11-24 11:10:05 UTC

*** Bug 1256510 has been marked as a duplicate of this bug. ***

Comment 6 lkuchlan 2016-02-01 12:50:54 UTC

Eric, can you provide which drivers support this feature and give a generic example for the configuration?

Comment 9 lkuchlan 2016-04-04 07:56:10 UTC

Since we do not have a relevant driver for volume replication, it was not tested yet. Once we'll have a driver, it will be tested
   
Test plan:
https://polarion.engineering.redhat.com/polarion/#/project/RHELOpenStackPlatform/wiki/Cinder/RFE_1258645-Volume%20Replication%20V2?sidebar=testrun&testrun=LVM%20driver%20-%20over%20subscription%20in%20thin%20provisioning_run_23_11_2015

Comment 11 errata-xmlrpc 2016-04-07 21:05:46 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHEA-2016-0603.html