Dear all, I currently design a multi-tier server infrastructure with a primary and a secondary line of servers.
The plan is to build an Open HA cluster for every tier (web, app, db, ...) with two servers each in fail-over configuration. While it is generally okay to switch each cluster pair autonomously (primary to backup web, primary to backup app ...), I need to switch over the complete set (primary web, app, db, ...) in one go when upgrading the software. Question now is: is there a way to orchestrate the clusters to switch over consistently, means, if to switch them all over to backup in one atomic step? And also: is it possible to do so automatically and based on heartbeat or agent intervention? Are resource groups the way to go? Thanks Mobi. -- This message posted from opensolaris.org
