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Jean-Philippe Méthot <jp.methot at planethoster.info> wrote: 
>Hi,
>
>I’ve noticed that in the high-availability guide, it is not 
>recommended to run cinder-volume in an active-active configuration. 

Active-active cinder-volume support is still in development, e.g. see 

    https://blueprints.launchpad.net/cinder/+spec/cinder-volume-active-active-support

I would strongly recommend talking to the Cinder experts to find out 
the current state, rather than relying on the HA guide which is 
currently rather out of date. 

>However, I have built an active-passive setup that uses keepalived 
>and a virtual IP to redirect API traffic to only one controller at a 
>time.

Yes, this is a fairly common deployment trick. 

>In such a configuration, would I still need to have only one 
>cinder-volume service running at a time? 

Yes, otherwise it's not active-passive ;-) 

Sorry for the slow reply!