There are products available to automate the management of this configuration. Look at the f5 GTM for some documentation around the concepts.
http://www.f5.com/products/big-ip/global-traffic-manager.html http://www.f5.com/pdf/products/big-ip-global-traffic-manager-ds.pdf Axton Grams On Thu, Jun 9, 2011 at 8:14 PM, Shellman, David <dave.shell...@te.com> wrote: > Thad, > > We do something similar to what you describe you want to do. It's easier now > than it was a few versions ago. What makes it easier is the fixed, floating > licenses are stored in the data base. > > Anyway what you do is create a DNS alias for your production server. You > configure desktop clients and any MidTier servers to connect using the > alias. Any internal connections like the email engine should also use the > alias. Make sure everything works right. > > Install the second server to the DB instance. Make sure you do the > installation as an upgrade. Like with the production server make sure that > internal connections use the alias. Apply any server license while you have > the fail over up and running. (You can get a hot stand by server license at > no cost but you do have to renew it each year). > > If you need to switch to the fail over server, you shut down the production. > Change DNS alias. Start up the fail over. Desktop clients may need to flush > their DNS cache. > > In our case we also have several MidTier instances that are running on > separate servers around the world. Users connect to the MidTier servers > using a DNS alias defined with in the regional zone. > > The big thing is to test the stand by configuration at least once a year. > You will be surprised at the little things hiding in config files that you > forgot to change. > Dave > ------------------------- > dave.shell...@tycoelectronics.com > (Wireless) > > From: Thad Esser [mailto:thad.es...@gmail.com] > Sent: Thursday, June 09, 2011 07:25 PM > To: arslist@ARSLIST.ORG <arslist@ARSLIST.ORG> > Subject: Looking for white paper on disaster recovery configurations > > ** > > Hello, > > I thought I had recently seen a white paper on disaster recovery for ARS, > but I can't seem to find it now, either by searching the arslist archives or > BMC's website. I found the white paper on load balancer configurations, but > that doesn't cover what I'm looking for. Basically, we are setting up a > secondary site to function as a failover (ARS stays down until needed), and > I'm looking for the best way to configure ARS. We already have a mid-tier > and replicated database set up, and now I need to put the AR server in > place. In particular, I'm thinking about server names and how best to > manage the configurations of those between the two servers (prod and > failover). > > That's a vague question I know, (I'm just starting down this path) so a link > to the white paper or any general advice is appreciated. > > Thanks, > Thad > ARS 7.1 on AIX > ITSM 7.0.3 (all apps) > Oracle 10g > > _attend WWRUG11 www.wwrug.com ARSlist: "Where the Answers Are"_ _______________________________________________________________________________ UNSUBSCRIBE or access ARSlist Archives at www.arslist.org attend wwrug11 www.wwrug.com ARSList: "Where the Answers Are"
