Open Stack

Hello Mehdi, 

Suggest reviewing this link on Openstack HA, as a starting point. 
http://docs.openstack.org/high-availability-guide/content/ch-intro.html

I've got an HA deployment running (Red Hat Openstack platform 6) it takes more than just two all in one nodes, basically it includes 6 servers: 1 installer, 3 admin nodes in HA, 2 compute nodes. 
Haven't tested instance fail-over in case of compute node crash, as Openstack doesn't support this out of the box. 
To the best of my knowledge instance fail-over isn't a feature supported by Openstack itself, as of yet. 

Mind you if we are talking about an Openstack instance, well instances shouldn't be that important, that they need to be failed-over/migrated in case of compute node crash. 
Maybe you need to think about virtualization rather than Openstack, virtual machines as apposed to instances on Openstack are meant to be saved and kept running at all times, including VM fail-over. 
Virtualization solutions like RHEV/Ovirt/VMware.. support VM fail-over, if you have the right licensing. 

It's still possible on Openstack but not out of the box: 
https://ask.openstack.org/en/question/63031/automatic-failover-instances/
https://ask.openstack.org/en/question/47725/automatic-instance-evacuation-after-node-failure/
https://ask.openstack.org/en/question/62439/openstack-instances-high-availability/

Good luck
Tzach  

----- Original Message -----
From: "Mehdi BADAOUI" <mehdiuniv at gmail.com>
To: openstack at lists.openstack.org
Sent: Friday, May 22, 2015 12:58:27 PM
Subject: [Openstack] Fwd: LBaaS

Hi all, 

I am trying to implement a private cloud OpenStack infrastructure , I set up two servers ( All In One ) running OpenStack . 

The company wants to have a High Availability service (Active, Active), what I can do LBaaS between two servers ( All In One ) ? should be do an architecture with Compute node and controller node to use LBaaS? The company wants is that VMs (instances) continue to run in case of a server crash 
Then for the storage , I am setting up a distributed storage with Ceph 


Thanks in advance. Waiting for early replies. 

Thanks and Regards, 
Mehdi 

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