Re: Upgrade With Replication

Yes, you are correct. We upgraded from 7.13 to 7.22 the same way. You have to start by bring them both to standard mode ( in any order ), do the upgrade independently and then proceed as if you were starting data replication for the first time, ie with a level 0 backup. A couple of words of caution though, 1. On the secondary server, when you do an onmode -d standard, do not assume that everything is ok once the onmode command comes back to the prompt. Check to see if your chunks and dbspaces are consistent/open and also wait for all logical recovery to be complete ( check both online.log(s) ). According to Informix, onmode -d standard may have a problem and if you bring down your engine too soon after this operation, you may be left with inconsistent chunks. So, patience is the name of the game. Trust me, I was burned twice. 2. Take a fresh level 0 backup after the upgrade 3. You have to do a cold restore of the secondary server. Sujata ______________________________ Reply Separator _________________________________ Subject: Upgrade With Replication Author: Corey McKinnon <clm@flyingj.com> at internet Date: 10/7/97 3:21 PM We have a pair of AIX boxes running On-Line 7.20, doing High Availability Data Replication. We are looking at upgrading to 7.23. I've read through the Migration Guide, and for a single server, it looks straightforward. However, it didn't mention replication anywhere. Has anyone done this before? What steps are needed to do this cleanly? I know both boxes have to have the same version of On-Line, so I am assuming I have to take them both down and upgrade them both before bringing them back up. Any help would be greatly appreciated. Thanks, Corey McKinnon System Administrator Flying J, Inc. clm@flyingj.com