[openstack-dev] [Nova] What is the no_device flag for in block device mapping?

Daniel P. Berrange berrange at redhat.com
Wed Sep 9 09:01:04 UTC 2015


On Tue, Sep 08, 2015 at 05:32:29PM +0000, Murray, Paul (HP Cloud) wrote:
> Hi All,
> 
> I'm wondering what the "no_device" flag is used for in the block device
> mappings. I had a dig around in the code but couldn't figure out why it
> is there. The name suggests an obvious meaning, but I've learnt not to
> guess too much from names.
> 
> Any pointers welcome.

I was going to suggest reading the docs

  http://docs.openstack.org/developer/nova/block_device_mapping.html

but they don't mention 'no_device' at all :-(

When we find out what it actually means we should document it there :-)

Regards,
Daniel
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