Bug 1254073 – [RFE] Allow creation of gluster volume with arbiter brick

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Bug 1254073 - [RFE] Allow creation of gluster volume with arbiter brick

Summary:	[RFE] Allow creation of gluster volume with arbiter brick

Status:	CLOSED CURRENTRELEASE

Aliases:	None

Product:	ovirt-engine
Classification:	oVirt
Component:	RFEs (Show other bugs)
Sub Component:
Version:	---
Hardware:	Unspecified Unspecified

Priority	medium Severity medium (vote)
Target Milestone:	ovirt-4.1.0-beta
Target Release:	---
Assigned To:	Ramesh N
QA Contact:	RamaKasturi
Docs Contact:

URL:
Whiteboard:
Keywords:	FutureFeature

Depends On:
Blocks:	Gluster-HC-2
	Show dependency tree / graph

Reported:	2015-08-17 02:27 EDT by Sahina Bose
Modified:	2017-02-15 09:57 EST (History)
CC List:	12 users (show)

See Also:
Fixed In Version:	ovirt-4.1.0-beta
Doc Type:	Enhancement
Doc Text:	With this update, support for Gluster arbiter volume creation has been added to Red Hat Virtualization. Arbiter volumes are recommended in place of regular three way replicated volumes to save storage space.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2017-02-15 09:57:05 EST
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	Gluster
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Flags:	sabose: ovirt‑4.1? ylavi: planning_ack? rnachimu: devel_ack+ rule-engine: testing_ack+

Attachments	(Terms of Use)
Attaching screenshot for the arbiter (156.97 KB, image/png) 2017-01-27 08:41 EST, RamaKasturi	no flags	Details
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
oVirt gerrit	52540	None	None	None	2016-12-19 04:25 EST

Groups: None (edit)

Description Sahina Bose 2015-08-17 02:27:50 EDT

Description of problem:

Glusterfs allows the creation of replica volumes with one brick as an arbiter, to solve the possibility of split brain without the need for three times storage capacity.

Allow creation/management of such volumes from oVirt

Version-Release number of selected component (if applicable):
NA

How reproducible:
NA

Comment 1 Yaniv Lavi 2015-12-14 03:47:27 EST

This can't be on 3.6.z since it's a RFE. Why did this move to this target?

Comment 2 Sahina Bose 2016-04-05 10:53:19 EDT

Retargeting to 4.1

Comment 3 RamaKasturi 2016-10-03 03:43:36 EDT

When user creates a arbiter volume from CLI it should be synced into UI with out any issues.

Number of bricks field in the general sub tab should be modified to show as "1 x (2 + 1) = 3"

Replica count filed can be removed from the General sub tab of the volume.

Comment 4 Ramesh N 2017-01-02 04:51:36 EST

Fix is already merged in ovirt-engine-4.1 branch and ovirt-4.1.0-beta build should have the fix.

Comment 5 RamaKasturi 2017-01-27 08:38:51 EST

Verified and works fine with build ovirt-engine-4.1.0.2-0.1.el7.noarch.

With this build user can  create a arbiter volume from UI. There is a checkbox called 'Arbiter Volume' in the "New Volume" dialog box and once user checks that and provide all the required details it creates an arbiter volume. 

When arbiter volume is created using UI, brick path does not contain arbiter flag and logged a separate BZ for that.

https://bugzilla.redhat.com/show_bug.cgi?id=1417101

Comment 6 RamaKasturi 2017-01-27 08:41 EST

Created attachment 1245153 [details]
Attaching screenshot for the arbiter

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