Bug 1385772

Summary: [Docs] [Cinder] On cluster w/ multi-backend storage, Ceph should be the default, it's not
Product: Red Hat OpenStack Reporter: Rajini Karthik <rajini.karthik>
Component: documentationAssignee: RHOS Documentation Team <rhos-docs>
Status: CLOSED EOL QA Contact: RHOS Documentation Team <rhos-docs>
Severity: medium Docs Contact:
Priority: medium    
Version: 12.0 (Pike)CC: cminkema, flucifre, gfidente, jomurphy, jslagle, lmarsh, mburns, morazi, nlevinki, srevivo, tvignaud
Target Milestone: ---Keywords: Documentation
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
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Fixed In Version: Doc Type: Enhancement
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Clone Of: Environment:
Last Closed: 2021-07-06 11:17:28 UTC Type: Bug
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On:    
Bug Blocks: 1413723    

Description Rajini Karthik 2016-10-17 16:24:17 UTC 
Description of problem:
Running RHOSP9 , multi-backend ceph, eqlx, compellent:
On clusters using multi-backend storage, Ceph should be the default volume storage as it was in OSP8. In OSP9, EQXL is the default volume backend.
If you do a “cinder create myvolume”, it automatically creates an eqlx volume. In OSP8, Ceph was the default.
There is a param in cinder.conf that specifies a default volume type, but it is commented out.
Default volume type to use (string value)
#default_volume_type = <None>

If there is a way to specify this in the yaml heat templates, please let us know

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Comment 2 Giulio Fidente 2017-07-19 14:56:40 UTC 
When multiple backends are enabled cinder will use the one with the most available free space, there isn't a "default" unless operators excplicitly create volume_types and ser a default volume_type.
Comment 3 Keith Schincke 2017-07-19 15:03:07 UTC 
Need documentation fix for commands needed to set the default storage type. OSPd does not support setting a default on deployment.
Comment 4 Lucy Bopf 2017-07-27 02:24:55 UTC 
Clearing target release pending docs triage.
Comment 6 Cheryl Minkema 2019-01-28 19:20:09 UTC 
Doc fix relevant to  OSP 12/13/14