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---------- Forwarded message ---------
From: Rajat Dhasmana <rdhasman at redhat.com>
Date: Sat, Oct 17, 2020 at 12:31 AM
Subject: Re: [ops] [cinder] __DEFAULT__ volume type
To: Massimo Sgaravatto <massimo.sgaravatto at gmail.com>


Hi Massimo,



On Fri, Oct 16, 2020 at 7:42 PM Massimo Sgaravatto <
massimo.sgaravatto at gmail.com> wrote:

> I have recently updated my Cloud from Rocky to Train (I am running Cinder
> v. 15.4.0)
> I have a question concerning the __DEFAULT__ volume type, that I don't
> remember to have seen before.
>
>
Since Train, cinder has decided to discourage untyped volumes (volumes with
None volume type) as it doesn't add any value to the volume attributes. To
achieve this, we created the __DEFAULT__ type and migrated all untyped
volumes to have the __DEFAULT__ type.


> Since:
> - I have no volumes using this volume type
> - I defined in in the [DEFAULT] section of cinder.conf the attribute
> "default_volume_type" to a value different than "__DEFAULT___"
>
> I assume that I can safely delete the __DEFAULT__ volume type
>
> Is this correct?
>
>
Yes, as long as there are no volumes using it and there is a valid volume
type defined with ``default_volume_type`` config in cinder.conf, you can
safely delete it.
NOTE: ``default_volume_type`` has a default value of ``__DEFAULT__`` to not
allow users to further create untyped volumes, if you are deleting this,
make sure there is always a valid volume type defined with
``default_volume_type`` in cinder.conf


> Thanks, Massimo
>


Thanks and Regards
Rajat Dhasmana
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