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


Hi Massimo,



On Fri, Oct 16, 2020 at 7:42 PM Massimo Sgaravatto <massimo.sgaravatto@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