Load balance in basic network model

["john@millican.us" <jo...@millican.us>]

Hello,
I am running CloudStack 4.1 on Ubuntu 12.04.2 with KVM for hypervisors 
and am using NFS for primary and secondary storage.
I am currently running Basic Networking model and would like to have two 
VMs on separate hosts load balanced.
I see in the network section of Service Offerings "Default Isolated 
Network Offering With Source NAT Service" and
under System Offering for "System Offering for Elastic LB VM"  But am 
not able to find anyway to use them.
I have Googled the heck out of this and have found many post that say 
this is doable but none that give any examples or "how to" instructions.

It would also be nice to have the System VMs and routers be redundant so 
that if a host fails it will automatically fail over to the other host 
with as little down time as possible.  Again I see lots of talk about 
this but nothing to show how to do it.

Even a simple pointer to where I can find example or a how to would be 
great. I have read the admin guide at 
http://cloudstack.apache.org/docs/en-US/Apache_CloudStack/4.1.0/html/Admin_Guide/ 
   and am not finding my answers.

Thanks
JohnM

Re: Load balance in basic network model

[Murali Reddy <Mu...@citrix.com>]

On 27/06/13 5:01 AM, "john@millican.us" <jo...@millican.us> wrote:

>Hello,
>I am running CloudStack 4.1 on Ubuntu 12.04.2 with KVM for hypervisors
>and am using NFS for primary and secondary storage.
>I am currently running Basic Networking model and would like to have two
>VMs on separate hosts load balanced.
>I see in the network section of Service Offerings "Default Isolated
>Network Offering With Source NAT Service" and
>under System Offering for "System Offering for Elastic LB VM"  But am
>not able to find anyway to use them.
>I have Googled the heck out of this and have found many post that say
>this is doable but none that give any examples or "how to" instructions.

In basic zone you do get load balancing functionality but current
implementation works only with NetScaler. At some point in 2.x there was
ELB VM's providing load balancing in basic zone but its not supported
(actually not enabled, whole code exists in CloudStack some one needs to
test and re-enable it) lately. Advanced zone networking model provides
lots of rich networking features with native virtual router appliance. Any
particular reason you choose 'basic network' model? If you have option you
might want to consider using advanced zone deployment.

>
>It would also be nice to have the System VMs and routers be redundant so
>that if a host fails it will automatically fail over to the other host
>with as little down time as possible.  Again I see lots of talk about
>this but nothing to show how to do it.

For virtual router, you have redundant virtual router which can be enabled
in the network offering. System VM's are also HA enabled.

>
>Even a simple pointer to where I can find example or a how to would be
>great. I have read the admin guide at
>http://cloudstack.apache.org/docs/en-US/Apache_CloudStack/4.1.0/html/Admin
>_Guide/ 
>   and am not finding my answers.
>
>Thanks
>JohnM
>
>
>