Bug 1568043

Summary:	The Block Device Guide mention layering not being supported through with version 3.0
Product:	[Red Hat Storage] Red Hat Ceph Storage	Reporter:	Jean-Charles Lopez <jelopez>
Component:	Documentation	Assignee:	Erin Donnelly <edonnell>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Parikshith <pbyregow>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	3.0	CC:	edonnell, hnallurv, kdreyer, khartsoe
Target Milestone:	rc
Target Release:	3.1
Hardware:	Unspecified
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-08-26 06:55:45 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 Jean-Charles Lopez 2018-04-16 16:19:00 UTC

Description of problem:
The Block Device Guide in its layering chapter mentions in a note that RBD Layering is not supported via kRBD.


Version-Release number of selected component (if applicable):
3.0 (https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/3/html/block_device_guide/)

How reproducible:
N/A

Steps to Reproduce:
1.
2.
3.

Actual results:
The documentation shows:
"Ceph only supports cloning for format 2 images (created with rbd create --image-format 2), and is not yet supported by the kernel rbd module. So you MUST use QEMU/KVM or librbd directly to access clones in the current release."

Expected results:
With a 7.4 distribution you can actually create and map a format 2 RBD Image with the layering feature enabled.

Additional info:
I believe this note should be removed or reworded and become OS distro specific.

Comment 5 Giridhar Ramaraju 2019-08-20 07:17:21 UTC

Level setting the severity of this defect to "High" with a bulk update. Pls
refine it to a more closure value, as defined by the severity definition in
https://bugzilla.redhat.com/page.cgi?id=fields.html#bug_severity