Dual stack system copy/ which method is better

[Former Member]

Dear Gurus,

I need to install the system (ABAP+J2EE) using another system as a same copy.

Please suggest me what needs to be done

1. Do I need to install the system first and use the database copy (backup+ restore) method

2. Do i need to directly use the sapinst tool and gives the online backup/ offline backup of source as the system copy option is available in the master DVD.

Please suggest me what will be the best method for making system copy, as i need to install dual stack.

Thanks and Regards

Purna CRT.

[JPReyes]

The only supported way is to do a Homogeneous System Copy, DB copy can give you a lot of trouble specially on the java side

Read the system copy guide at http://service.sap.com/systemcopy

Regards

Juan

[Former Member]

Dear Juan,

Thanks for your reply,

Do you mean to say , second option is better ?

If i proceed with the second option, what are the pre-requisites to be taken before start sapinst

Can I use source online backup, or only offline backup as the database load?

How do i make sure j2ee is also installed along with ABAP part.

I am looking the guide, but it would be very much useful if you provide any suggestions regarding this.

Thanks and Regards

Purna.

[Former Member]

Hi,

Best option for system copy is export and import (Homogenious system copy)

Method:

Export:

1) Run sapist from the netwaever master DVD and go to additional S/w life cycle Task --> System copy --> Source system --> Cental System --> Based on AS ABAP and AS java Click on next

2) Give the profile directory

3) Specify export location. ( where the export file will be stored)

Import:

1) Same as export, instead of selecting sourec system select target system

2) Like netweaver installation give all neccessary inputs but when it is asking for database installation

Please select the Standard System copy /Migration (load based) option

3) When the system ask for Migration export please give the location of the export file which you exported earlier.

Now start installation and it will take some time to finish and you can enjoy the new system.

Regards,

Sudip

[Former Member]

Hello,

There are various ways to identify whether j2ee is installed with ABAP.

like,

1) by looking into the directory stucture /usr/sap/SID/

Under /usr/sap/SID/ if it is DVEBMG00 then it contains ABAP + Java but if it is JC00 then it contains only java.

2) You can find the abapjava from database schema. SAPSR3 schema is for ABAP and SAPSR3DB for Java. If both are there in the DB then ABAPJAva is installed.

thanks,

Sudip

[Former Member]

Dear Sudip,

Thank you very much for your answer,

I am afraid, If i neded to follow your steps.. I need to stop source DB for taking ABAP export from source.

Source DB should not be stopped as it is production system.

We need to think about the another option which i have mentioned at very first.

I think that i may go for first option as

Install the system first and do the system copy using backup -restore method.

Please provide your suggestions.

Thanks and Regards

Purna

[Former Member]

Hi All,

The original message is very old, but if anyone need any inputs..here you go

My tested options in production backup situation is,

1. Take the SAP system down.

2. Take the database backup using DB method or file level backup

3. Take J2EE export using SAPinst method, and select the option which says "ABAP backup with DB method"

4. Transfer all files to new server

5. restore and recover the database using DB method

6. Run the sapinst and start target system and say ABAP database is done using DB method so It will take care of of J2EE only.

Only one problem is, (i faced), that sometimes the J2EE components does not show correctly in J2EE System Information, and some j2ee application may complain about correct component version.... I got away with running JSPM with all latest SPS and it took care of the SDM version issues.

Hope this helps

Thanks

Yatin

Edited by: Yatin Bhatt on Mar 18, 2010 1:14 PM

[Former Member]

Hi Yatin,

Thanks for your input, i have already tested as you said, we do not even down the source system as we have on line backup and we could able to restore using that. for java export we do not have to worry about entie system downtime.

thanks and regards

Purna

[manoj_nayak2]

Hello Purna,

As i understood ur problem, u can follow this method

JAVA ADD-IN FOR ABAP:

1. Backup the database (Source System) & restore the system (Target System) as homoginius.

2. Your ABAP system should up & run (Target System).

3. Then u go to SAPINST> Additional Software Life-Cycle Tasks> Java Addin For ABAP> <Select ur Database>>If it is central System choose Central System--> Run SCS Java Add-in.

2. Like that --> Run Database Instance Java Add-in.

3. Like that --> Run Central Instance Java Add-in.

This will work as ABAP+JAVA

What is result letme Know.

Thanks & Regards

Manoj

[Former Member]

Hi manoj,

Thanks for your inputs, I have already tested system copy using online backup of source system and java export.

your first two point are correct. but from third point, i have selected sytem copy--> target system installation and proceeded further, it went success with few adjustments as ABAP is already installed.

Thanks and Regards

Purna

[manoj_nayak2]

Hello

Did u performed what i told, Just u do step by step and get back to me.

It will work.

What is the Status let me know

Manoj

Edited by: manoj nayak on Mar 22, 2010 9:22 AM