Bug 1400404

Summary: [RFE] OSP director puppet modules need additional NetApp driver options
Product: Red Hat OpenStack Reporter: Bryan Yount <byount>
Component: RFEsAssignee: Alan Bishop <abishop>
Status: CLOSED NOTABUG QA Contact: Tzach Shefi <tshefi>
Severity: medium Docs Contact:
Priority: medium    
Version: 8.0 (Liberty)CC: abishop, asoni, byount, dabrown, dhill, eharney, geguileo, gfidente, ipilcher, markmc, mburns, nobody+akarlsso, pgrist, scohen, srevivo
Target Milestone: ---Keywords: FutureFeature, Triaged, ZStream
Target Release: 8.0 (Liberty)   
Hardware: Unspecified   
OS: Unspecified   
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Last Closed: 2017-07-12 18:34:30 UTC Type: Bug
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Bryan Yount 2016-12-01 05:35:07 UTC 
Description of problem:
Per the resolution of Bug 1269990, the Puppet modules in OpenStack director need the following parameters which are available in the driver, but not in the OSP puppet modules. These should be available as options as well since the multibackend modules issue has been resolved:

      netapp1/reserved_percentage:
        value: 40
      netapp1/max_oversubscription_ratio:
        value: 10

Version-Release number of selected component (if applicable):
OSP-d 8.0

Additional info:
Workaround was used from kbase 2213581 (https://access.redhat.com/solutions/2213581)
Comment 8 Alan Bishop 2017-03-28 16:14:48 UTC 
The BZ description mentions adding support for configuring two driver options,
but much of the discussion is centered around multi-back end deployments.

It turns out the KB article for multiple heterogeneous backends [1] already
provides the means for specifying values for the reserved_percentage and
max_oversubscription_ratio paramters, and is shown in the BZ description. You
simply need to add snippets like this to each driver section ("netall1" in
this example).

      netapp1/reserved_percentage:
        value: 40
      netapp1/max_oversubscription_ratio:
        value: 10

This leverages TripleO's cinder::config::cinder_config ability to add
arbitrary parameters to the driver settings in /etc/cinder/cinder.conf.

Bryan, I'm wondering if this is sufficient, or if you're asking for dedicated
TripleO parameters that can be set without resorting to the
cinder::config::cinder_config technique? The dedicated parameters would be
useful for single back end deployments, but you'd still need to use the
cinder::config::cinder_config method when deploying multiple back ends.

[1] https://access.redhat.com/solutions/2213581
Comment 10 Alan Bishop 2017-03-28 20:00:57 UTC 
Just to clarify, I need to know if the customer is looking for the parameters to be supported in THT and Puppet in a single back end deployment, or a multiple back end deployment. The distinction matters.
Comment 16 Giulio Fidente 2017-05-18 22:52:15 UTC 
As per comment #4 from Alan, in OSP8 it should be possible to leverage TripleO's ability to add arbitrary parameters to the driver settings in /etc/cinder/cinder.conf via cinder::config::cinder_config

This functionality is documented in [1] and [2].

1. https://access.redhat.com/solutions/2213581
2. https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/8/html/custom_block_storage_back_end_deployment_guide/