Open Stack

On 06/20/2013 01:02 PM, John Garbutt wrote:
> Hi,
> 
> I have had some discussions about if I should add a config flag in this change:
> https://review.openstack.org/#/c/32760/
> 
> I am looking to support adding a large amount of ephemeral disk space
> to a VM, but the VHD format has a limit of around 2TB per disk. To
> work around this in XenServer, I plan to add several smaller disks to
> make up the full ephemeral disk space.
> 
> To me it seems worth adding a configuration flag (in this case),
> because there is no easy way to guess the correct value, and there
> doesn't seem to be a great value to hardcode it to. Having said that,
> I suspect the default value will be all most people need, whether or
> not they have very large ephemeral disk space in their flavors.
> 
> I am curious about what people think (in general, and in this case)
> about the tradeoff between: hardcode, magic heuristic calculation, add
> config

Is it really worth adding a config option for this when you effectively
set the limit already by configuring flavors?  Or am I missing something?

-- 
Russell Bryant