Bug 1700012

Summary: Lack of documentation about virtualized control plane
Product: Red Hat OpenStack Reporter: Alex Stupnikov <astupnik>
Component: documentationAssignee: RHOS Documentation Team <rhos-docs>
Status: CLOSED DUPLICATE QA Contact: RHOS Documentation Team <rhos-docs>
Severity: high Docs Contact:
Priority: unspecified    
Version: 13.0 (Queens)CC: astupnik, dmacpher, ltamagno, mschuppe
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Last Closed: 2021-08-17 12:29:47 UTC Type: Bug
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Description Alex Stupnikov 2019-04-15 15:10:25 UTC 
Description of problem:

Since RHOSP 13 release Red Hat claims that it support "Virtualized Control Plane" [1], [2], [3]. At the same time our official documentation lacks appropriate information:

- there is no definition of RHOSP "Control Plane". The only details are available in document [1], which claims that control plane consist of director and controller node (figure 1). For example, it is not 100% if SDN entities (neutron routers, DHCP servers, etc) are also considered as "Control Plane" and if possible performance impact was properly considered;
- there is no performance requirements for storage and network devices, only information about amount of RAM and vCPUs;
- only basic scenario is covered, so it is unclear if we will support more complex one (like using SR-IOV NICs for controller VMs).


There were different cases from important accounts asking about this offer, so setting this bug's severity to high.

[1] https://www.redhat.com/en/blog/virtualize-your-openstack-control-plane-red-hat-virtualization-and-red-hat-openstack-platform-13
[2] https://access.redhat.com/articles/1535373#Ironic (oVirt/RHV vendor)
[3] https://access.redhat.com/solutions/4021881
Comment 2 Dan Macpherson 2021-08-17 12:29:47 UTC 

*** This bug has been marked as a duplicate of bug 1591546 ***
Comment 3 Dan Macpherson 2021-08-17 12:31:39 UTC 
This bug has been closed as DUPLICATE due to the request being completed the following BZs:

https://bugzilla.redhat.com/show_bug.cgi?id=1591546
https://bugzilla.redhat.com/show_bug.cgi?id=1737900
https://bugzilla.redhat.com/show_bug.cgi?id=1738253

If you believe this bug has been closed in error, please re-open and provide a comment telling us what additional documentation you require, and provide a link to your active support case. Thank you for your help!