CloudPlatform's XenServer cluster limits

9 juillet 2013 05:33

As per the Citrix Cloudplatform admin guide, a XenServer cluster can have a maximum of 8 hosts. I'm going to go ahead and configure a new cluster for the 9th host I'd like to add. Does this mean I need to create a new XenServer pool or can I keep adding servers to my existing pool? How about the XenServer pool itself, any limit to the number of servers I should add to it? TIA.

Erik

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Pankaj Paliwal

23 mars 2016 07:18

CloudPlatform's XenServer cluster limits

> As per the Citrix Cloudplatform admin guide, a XenServer cluster can have a maximum of 8 hosts.
This limit comes from our experience and this is the number of hosts which QA tests. This value is a best practice which we suggest to our customers but we do not enforce this limit in any way.

> Does this mean I need to create a new XenServer pool or can I keep adding servers to my existing pool?
You can either create new cluster or join this host as a 9th member of existing cluster/pool.

>How about the XenServer pool itself, any limit to the number of servers I should add to it?
XenServer has own supportability limit on number of hosts in a pool and it's now 16.

Radek.

Radoslaw Smigielski CITRIX EMPLOYEES 10 July 2013 - 15:39 PM

Erik Godin

23 mars 2016 07:18

> {quote:title=radoslaws wrote:}{quote}
> > Does this mean I need to create a new XenServer pool or can I keep adding servers to my existing pool?
> You can either create new cluster or join this host as a 9th member of existing cluster/pool.
>
> Radek.

Put in another way if my intention to follow your best practice of 8 hosts can I just create a new cluster in CloudPlatform or should I also create a new XenPool?

Finally, would you be willing to elaborate on the problems with going over 8 hosts?

Thank you,
Erik

Pankaj Paliwal

23 mars 2016 07:19

Hi Erik,

You can create a new cluster in CloudPlatform and add the first host, when you add the second host to this cluster CloudPlatform creates the pool for you on XenServer-level.

I'm not sure what the best practice is based on but I think it has to do with the Pool Master, CloudPlatform has a lot of interaction with the pool (more than a regular XenServer pool without CloudPlatform managing it). It also depends on how much you stress the pool (e.g. how many (busy) VM's you have running.

Gijsbert Janssen van Doorn MEMBERS 31 July 2013 - 09:23 AM