The upgrade of database 10g to 11g with minimal downtime?

Hi all

We want to improve our 10.2.0.4 RAC database for 11.2.0.3 linux linux RAC. We have two different servers, where one is the production server (10.2.0.4) and another is the 11.2.0.3 Server.

Here, we want to minimize downtime of the production database.

Our db size is close to 1 TB. If we turn to the traditional method of upgradation as given below, then it will take nearly 15 hours:

1. take RMAN 10 g bkp.

2. transfer to server 11 g.

3. restore the db.

4. set at the database level.

I had two methods to minimize the downtime that arise as follows, but I'm not sure that these means are feasible or not...

1st method:

Our server of db source here is 10.2.0.4 and target db server is 11.2.0.3.

1. create a DR on the target server. (10.2.0.4)

-Here we have installed the software (stand-alone) db to 10.2.0.4 on the target server, but also some 11.2.0.3 rac linux.

-All data of Dr. files will be filesystem (not on ASM).

Synchronize the database of production with the Dominican Republic.

2. break the DR and turn it on.

3 close the db and move the datafiles of the DR to ASM storage (11.2.0.3)

4. start PB with option upgrade and update.

It will take nearly 5 hours.

2nd method:

-Install the software grid 11g and 10g and 11 g db Server db software target.

-We set up DR as first method but the grid HERE home will be 11 g and db House will be 10 g.

-Now we will synchronize the DR with data base of production.

-to activate the 10g database (target server)

-will restart the database 11g House and then we will modernize it.

Here I want to know that is it possible to create a DR with the following configuration?

Production DB is 10.2.0.4 and DR is configured with 11g grid and g 10 db House.

Kindly give your entries...

Kind regards

Andy...!

Hi Srini,

Thanks for the reply.

I have the following document for the upgradation to 11g with minimal downtime, and it seems good. We make this POC...

Upgrade to transitional assistance rolling logical Standby database: Oracle DataGuard 11g.

Thank you all for your suggestions.

Kind regards

Andy...!

Tags: Database

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