Bug 1732850

Summary:	[Docs][RFE][Compute] Document how to attach a single volume to multiple instances simultaneously
Product:	Red Hat OpenStack	Reporter:	Mikey Ariel <mariel>
Component:	documentation	Assignee:	Irina <igallagh>
Status:	CLOSED CURRENTRELEASE	QA Contact:	RHOS Documentation Team <rhos-docs>
Severity:	unspecified	Docs Contact:
Priority:	urgent
Version:	14.0 (Rocky)	CC:	igallagh, nlevinki, ravsingh
Target Milestone:	---	Keywords:	Documentation, Triaged
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-07-06 11:19:04 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:
Bug Depends On:	1033185
Bug Blocks:	1744051

Description Mikey Ariel 2019-07-24 14:06:00 UTC

User story:

As an administrator, I want to attach a Cinder volume to multiple instances to support active/active or active/standby scenarios, and in order to deploy clustered database systems, such as MSSQL, Oracle, etc.

Purpose of function:

The ability to attach a volume to multiple hosts/servers simultaneously in both Cinder and Nova with read/write (RW) mode, to address the clustered application workloads use case that typically requires active/active or active/standby scenarios. In order to do this R/W there are a number of issues involved with respect to data corruption etc.

Comment 4 Irina 2021-07-06 11:19:04 UTC

Updated content available on the Customer Portal:

https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/16.1/html-single/instances_and_images_guide/index#attaching-a-volume-to-multiple-instances_instances