[Openstack] Root disk resize down

Mārtiņš Jakubovičs martins-lists at hostnet.lv
Wed Feb 10 10:41:42 UTC 2016


Hello,

Looks like it is not working, when I try to resize instance I receive:
Server disk was unable to be resized because: Resize to zero disk flavor 
is not allowed.

Maybe there is some nova configuration which allow to scale down 
instance without shrinking root disk?

Best regards,
Martins

On 2016.02.10. 12:10, Alberto Molina Coballes wrote:
> 2016-02-10 8:51 GMT+01:00 Mārtiņš Jakubovičs <martins-lists at hostnet.lv 
> <mailto:martins-lists at hostnet.lv>>:
>
>     Thanks,
>
>     But how at least I can setup that if I change offering to lower it
>     change just CPU and RAM and if root disk size in offering is
>     smaller than actually in instance, nova don't try to change it to
>     smaller?
>
>
> Hi,
>
> You can try defining a new flavor with a size of 0 GiB, then the 
> instance can use the new flavor without any change in the size of the 
> root filesystem.
>
> Regards,
>
> Alberto
>
>
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