Lots of interesting nuggets in here, i'm also interested in the ASG driven db node replacement approach, has anyone seen any more info about the nuts and bolts

Lots of interesting nuggets in here, i'm also interested in the ASG driven db node replacement approach, has anyone seen any more info about the nuts and bolts of how this works? The idea of treating db nodes less like pets seems great, there must be a few tricks to it tho..