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Siebel 8.1 Production upgrade & Data Guard

898194Nov 4 2011 — edited Nov 8 2011
Hello,
We will have a new pre-production hardware available for Siebel 8.x upgrade several months in advance. This hardware will be same as prodcution with respect to size. We are planning to use "Data guard" for replication from Siebel 77 DB (2.5TB) to the new pre-prod Siebel 8 DB server. My requirement is to have minimum downtime!

I am thinking of following upgrade steps before the deployment weekend.
1. Take cold backup of Siebel 77 PROD DB
2. Copy 77 PROD database to the new Pre-prod Siebel 8 DB
3. Install and Siebel Gateway server, Siebel server, Siebel database server utilities and Siebel web server extensions
4. Install database schema and seed data
5. Import the new Siebel 8 repository
6. Test the application
7. Shutdown Siebel application and get ready for production deployment

Production deployment weekend steps:
1. Shutdown Siebel 77 application and DB
2. Start Data replication from Siebel 77 DB into the new Siebel 8 DB
3. After replication complete, Start Siebel 8 application.

Can any one confirm that the above production deployment weekend steps would work, meaning does the "Data guard" replication keep my Siebel 8 upgrade DB intact and not wipe it off? I am trying to avoid installing/configuring/upgrading the application during the deployment weekend.

I am lost and confused on how the production upgrade is going to work. I read several online posts, upgrade guides, and did not come across good information/help for production upgrade, all of the support articles are for upgrading development environments!

Please note that "Golden Gate" is not an option, do not have budget for it!

I would appreciate any help.

Thanks,
PM
This post has been answered by __834332ld on Nov 7 2011
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Comments

Robert Ponder
Hi,

I can see some problems in your plan. We can help you with a zero downtime or near zero downtime upgrade if you engage with us. If you check back to OOW 2010 the main Siebel upgrade presentation was one of our customers who we helped do a zero downtime upgrade that did not involve GoldenGate. GG is a great product but it is not required for a zero downtime upgrade.

R

Robert Ponder

Edited by: rukbat on Nov 6, 2011 5:48 AM
898194
My requirement is to have minimum downtime not "Zero"...

I am thinking that the following steps should be moved to the deployment weekend, so that I can perform the DB upgrade on the most current PROD Siebel DB (after "Data Guard" replicated all of the data on to the new Siebel 8 DB).

Upgrade the Siebel Database (upgrep and upgphys) --> starting from steps 33 in the "Process of Upgrading a Siebel Production Environment"

I believe that "Install & configure Siebel servers" can be done prior to the deployment weekend without an active database, can anyone confirm that for me?

I understand that the actual production downtime can't be determined until I test the process in a production like environment. But I am in the planning stage and want to create an execution plan as accurate as possible to save time & money.

Thanks for your help!
PM
__834332ld
Answer
Now that you added the upgrade steps in it makes sense but you will no doubt find more steps are required as you progress.....

regarding the statement:

"I believe that "Install & configure Siebel servers" can be done prior to the deployment weekend without an active database, can anyone confirm that for me?"

It could indeed and it could equally be done against a copy of your upgrade development environment DB. The Siebel install is not dependant on your DB but there are entries in your DB which may be Siebel server specific, look at the guide for copying back from production if you don't understand what I mean. Restoring Production Environments into Test Environments [ID 477772.1]. If you are moving servers during upgrade that guide will give you some hints too at areas you need to consider.
Marked as Answer by 898194 · Sep 27 2020
898194
Thanks for confirming that the Siebel server installation can be done without an active database!

All,
I would like to request to share your experience with the "Data Guard" tool as part of Siebel Production upgrade and any tips/suggestions.

Thanks.
PM
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Locked on Dec 6 2011
Added on Nov 4 2011
#install-upgrade-manage, #upgrade
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