On Wed, Sep 7, 2016 at 11:27 PM, System Administrator <sysadmin@phoenixhawaii.net> wrote:
Aloha,

I am attempting to set up an Ovirt environment across every server that I currently manage.  I have a set of servers in one location, behind a single firewall with multiple IP's, and I have another set of servers in a second location halfway around the world, also with their own set of IP's.  Additionally, the servers have different types of Intel CPU's, and varying amounts of memory and storage.  I also have a Fiber Optic SAN that I would like to use as my storage.

Do you have the same SAN at both locations? Are you able to set up async replication between the two SANs?
 

My question is:  Do I have to set up a VPN between every server that I want to install Ovirt on in order to manage them under a single Ovirt installation?  If so, how would I gain a highly available scenario?   In this case, if the server acting as the VPN server failed, the entire Ovirt system would collapse as well due to inability to communicate.

You need to have a VPN link between two sites, preferably a redundant one, and with some serious bandwidth too, if you intend to replicate the SANs across it. Once you have a replica of your storage domain on the second site working, if the primary site goes down, you can bring everything up on the secondary site. If you want this at a VM and not SD level, you might either have to replicate LUNs separately and use direct LUNs for VMs, or write some management scripts around it, so you will never end up with the same VM started on both sites. The latter will also require active-active LUN replication, which is usually a bad idea to start with. 
 

My goal is to combine the resources of all of my servers so that I can live migrate VM's between them based upon workload, and also availability of hardware.  If the servers in Canada fail for instance, I want the services to automatically migrate to my servers in Hawaii.

load balancing will be very tricky, DR - much easier. 
 

Any assistance you can provide would be greatly appreciated.  Thank you!

Trenton


Trenton D Warren
President and CEO
Phoenix Holdings Corporation
Work:   (808) 263-7448
Cell:     (478) 867-3107
www.phoenixhawaii.net
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