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From Evan Miller <Evan.Mil...@citrix.com>
Subject RE: Can clusters (and their hosts and vms as well as pooling of cpu and ram) be 100% independent of other clusters in the same pod and zone?
Date Mon, 23 Jul 2012 23:48:52 GMT
Hi Edison:

The listCapacity API is what I was looking for.
Having that, this point is easier to understand:

> For sure, both cpu and memory will never be shared by other hosts or cluster or whatever,
because, hypervisors can't do it.

There isn't similar capability in the default CSMS GUI to see cluster-based
capacities (only system-wide capacities).

Thanks very much.

Regards,
Evan

-----Original Message-----
From: Edison Su [mailto:Edison.su@citrix.com] 
Sent: Monday, July 23, 2012 2:02 PM
To: cloudstack-users@incubator.apache.org
Subject: RE: Can clusters (and their hosts and vms as well as pooling of cpu and ram) be 100%
independent of other clusters in the same pod and zone? 



> -----Original Message-----
> From: Evan Miller [mailto:Evan.Miller@citrix.com]
> Sent: Monday, July 23, 2012 12:07 PM
> To: cloudstack-users@incubator.apache.org
> Subject: Can clusters (and their hosts and vms as well as pooling of 
> cpu and ram) be 100% independent of other clusters in the same pod and 
> zone?
> 
> Running CloudStack Management Server:
>   v3.0.2.1
> On:
>   [root@cumulus management]# uname -a
>   Linux cumulus.eng.citrite.net 2.6.32-220.el6.x86_64 #1 SMP Tue Dec 6
> 19:48:22 GMT 2011 x86_64 x86_64 x86_64 GNU/Linux
>   [root@cumulus management]#
> Hypervisor :
>   XenServer v6.02
> 
> Hi:
> 
> I haven't been completely successful in doing this. Partially 
> successful only.
> Is all of this possible?
> 
> Have a single CSMS serve multiple clusters in which each cluster is 
> 100% independent of any other cluster. When I say 100% independent, I 
> mean, independent by VM, by host, by pooling, by resource reporting, 
> and by end user. That is:
> 
>   Each user in same domain only sees their VMs (confirmed as 
> successful),
> 
>   Each VM is associated with a particular host (confirmed as 
> successful),
> 
>   CPU capacity from a host is never shared outside its cluster (is 
> this possible? how confirm?),
> 
>   Memory capacity from a host is never shared outside its cluster (is 
> this possible? how confirm?), and

For sure, both cpu and memory will never be shared by other hosts or cluster or whatever,
because, hypervisors can't do it.

> 
>  Cluster level capacity report like GUI -> Infrastructure -> Zones -> 
> Zone -> Resources (is this possible? how?)

There is an API listcapacitycmd to list the resources per cluster/pod/zone etc. But I am not
sure UI supports it or not.

> 
> 
> Regards,
> 
> Evan Miller
> 
> Citrix Systems. Inc.
> Desktop and Cloud Engineering Infrastructure
> 4988 Great America Parkway
> Santa Clara, CA 95054


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