Bug 1997241

Summary:	[RFE][MBS] oVirt Managed Block Storage with Ceph backend is't support live disk migration between pools
Product:	[oVirt] ovirt-engine	Reporter:	Konstantin Shalygin <shalygin.k>
Component:	BLL.Storage	Assignee:	shani <sleviim>
Status:	CLOSED WONTFIX	QA Contact:	Avihai <aefrat>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	4.4.8.4	CC:	ahadas, bugs, bzlotnik
Target Milestone:	---	Keywords:	FutureFeature
Target Release:	---
Hardware:	All
OS:	All
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-12-27 15:48:57 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	Storage	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Konstantin Shalygin 2021-08-24 17:18:19 UTC

Description of problem:

Managed Block Storage with Ceph backend is't support live disk migration between pools.

Version-Release number of selected component (if applicable): 4.4.8


Actual results:

oVirt Host use kernel rbd driver to mount disk. And admin can't use different method.

Expected results:

oVirt administrator optionally can use libvirt rbd driver. The userspace driver can be easy updated without downtime's and in librbd v14.2.2+ rbd migration feature is present.

Additional info:

RBD live-migration: https://docs.ceph.com/en/latest/rbd/rbd-live-migration/

libvirt rbd driver: https://libvirt.org/storage.html#StorageBackendRBD

Comment 1 RHEL Program Management 2021-08-25 07:09:01 UTC

The documentation text flag should only be set after 'doc text' field is provided. Please provide the documentation text and set the flag to '?' again.

Comment 2 Eyal Shenitzky 2021-10-18 07:34:08 UTC

Benny, any inputs on this?

Comment 3 Arik 2021-12-27 15:48:57 UTC

It is unlikely that we will be able to implement this since it depends on enhancements on the cinderlib side
Feel free to reopen if you are willing to contribute the changes