So just to be up to date on my note since I tested DigitalDaz HA script last year, An HA script is available if we are a member on FusionPBX website? I'm really looking forward to being a member within a few days if I can get confirmation about an HA script or installation tutorial being available!
We will be deploying FusionPBX surely so HA is a must for us if we can transfer away from our current software.
Yes the FusionPBX members get access to videos of previous training for Admin and Advanced classes and the documentation that goes with those. That includes instructions for multi-master replication for the database and file system and many other things to scale and provide a great experience to your users.