Bug 1127991

Summary:	[Docs] [Ceph] Update the Ceph section in CRG - block device doesn't use the metadata server
Product:	Red Hat OpenStack	Reporter:	Bruce Reeler <breeler>
Component:	documentation	Assignee:	RHOS Documentation Team <rhos-docs>
Status:	CLOSED NOTABUG	QA Contact:	RHOS Documentation Team <rhos-docs>
Severity:	low	Docs Contact:
Priority:	medium
Version:	5.0 (RHEL 6)	CC:	adahms, lbopf, scohen, seb, shan, srevivo
Target Milestone:	---	Keywords:	Documentation, Triaged, ZStream
Target Release:	5.0 (RHEL 7)
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-08-31 14:01:34 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 Bruce Reeler 2014-08-08 04:12:23 UTC

Description of problem:
From an email from John Wilkins on 5 Aug 2014:
Looking at https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux_OpenStack_Platform/5/html/Configuration_Reference_Guide/section_volume-drivers.html#ceph-rados, I notice that you are using some of Sage's old Ceph diagrams. Actually, the block device doesn't use the metadata server or file system stuff at all. So the graphic and the inclusion of Ceph Metadata Server is a bit misleading. 

See http://ceph.com/docs/master/rbd/rbd/  for general information, and http://ceph.com/docs/master/rbd/rbd-openstack/ for information specific to OpenStack.


Version-Release number of selected component (if applicable):
5.0

Actual results: 
Diagram and text refer to block device in conjunction with the  metadata server.


Expected results: 
Updated text and updated or remove incorrect diagram.

Comment 5 Andrew Dahms 2015-04-24 00:08:58 UTC

Moving back to 'NEW' until reassignment.

Comment 9 seb 2016-08-17 14:03:31 UTC

Hum looking at the doc, this is an old diagram indeed, but I don't see anything wrong in it.
What's misleading I guess is that the section is about RBD and we are presenting the global Ceph architecture again.