Re: Informix & Replication Server.

Jim Gordon writes: >Informix Online V6 will have the ability to maintain a remote system >with a replica of the Online session running on the local system. >This remote system will be read-only and will be kept upto date via >the logical logs. These will be transferred from the main online >system and rolled forward on the replica. Switch over will not be >entirely transparent, which isn't surprising, but I believe that >re-synching will be. Actually, switchover is pretty much automatic, assuming the clients are on different machines than the server (assuming a machine crash). You can specify auto switchover, so that when the replication link is severed, the secondary is automatically switched to a primary (i.e. allows update activity). You then simply need to include both server's info in your DBPATH, and by coding your app to reconnect when a disconnect error occurs, you can automatically switchover with only the incomplete transaction lost. >I do not know whether it will be possible to create multiple >replica's automatically but from my reading of the specs I do not >think so. No. Only one replicated site is currently supported. >I hope I got this right! Are Ingress and Sybase Replication servers >shipping yet? The last time I remember seeing anything about the >Sybase one was when they announced System 10 (6 months? ago). I got >the distinct impression it was entirely vapourware back then, put out >in response to the impending Oracle 7 announcements. 6.0 currently has some 3 or so beta customers running replication servers (out of 12 or so beta sites). Dave -- Disclaimer: These opinions are not those of Informix Software, Inc. ************************************************************************** "I look back with some satisfaction on what an idiot I was when I was 25, but when I do that, I'm assuming I'm no longer an idiot." - Andy Rooney