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From Edison Su <Edison...@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 21:02:05 GMT


> -----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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