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From "Jochim, Ingo" <>
Subject AW: Free capacity calculation within ACS
Date Wed, 06 Sep 2017 07:42:50 GMT
Hello Marc-Aurèle,

great. Didn't know that this parameter exists.
Do you know in which ACS version this got introduced?

Many thanks.

-----Ursprüngliche Nachricht-----
Von: Marc-Aurèle Brothier [] 
Gesendet: Mittwoch, 6. September 2017 09:15
Betreff: Re: Free capacity calculation within ACS

Hi Ingo,

You might want to look at the release period set in your installation:
host.reservation.release.period. This release window time is there to keep the capacity of
stopped machines on a host for a certain time, before releasing it, in case the machine has
to start again soon after. And most likely for other reason maybe in the advance networking
mode. So try to decrease this time window and check your capacity after that.


On Tue, Sep 5, 2017 at 9:48 AM, Jochim, Ingo <>

> Hello all,
> within our CloudStack environment we like to park a couple of large 
> machines in powered off state.
> Those machines are demo machines which are needed only sometimes.
> Those machines will get included in the capacity. That means we cannot 
> build new machines even if there are free ressources on the hypervisors.
> We don't want to solve it with overcommitment.
> Is there a possibility to calculate free capacity without all powered 
> off machines?
> Currently we have a dirty workaround. We created an offering with 1 
> core and 1MB RAM and used that for all parked machines.
> But this is not very nice.
> Any ideas or comments are welcome.
> Thank you.
> Ingo
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