ERP 6.0 OS and DB migration,with EHP7 upgrade.

[Former Member]

Hi Gurus ,

One of our client is willing to migrate their entire ECC(ERP 6.0 SPS20) and BW+BPC (NW 7.1) Landscape(3 system) to New data center.

while migrating,they are also  wanted upgrade,

      -ECC to   latest   EHP 7 ,

     -BW to latest   Netweaver version 7.4,

     -BPC from 7.5 to 10.1 version,

     -OS(Win server 2008) and DB(SQL server 2005) to Win server 2012 and SQL server 2012.

As of now,in their existing Landscape, BPC 7.5 and BW(netweaver 7.1)  are on same server.

now their requirement on their new data center is to split BPC form BW server,and migrate it to new stand alone Netweaver 7.4 server.

Upgrade expectation:---

             Current:                                                  Expected:   

Windows 2008                                                 Windows 2012

SQL server 2005                                             SQL server 2012

ERP 6.0 - Non Unicode                                    ERP 6.0 , EHP7 - Unicode  (unicode conversion)

(BW)Netwever 7.1                                            NetWever 7.4 ,

BPC 7.5                                                           BPC 10.1, and also needed to migrate from existing BW server to a new stand alone server.

We have identified the list of task involved in this project as below.

for ECC:--

1)ECC migration (system copy Export/Import)

2) EHP7 upgrade.

3)UNICODE conversion.

4)Database upgrade

For BW+BPC:--

1)NW migration(system copy Export/Import)

2)NW version upgrade.(from 7.1 to  7.4)

3)BPC upgrade from  7.5 to 10.1

4)Database upgrade

My questions are:

1)In what sequence we can perform this tasks to achieve minimum downtime  ?

2)how to upgrade BPC from 7.5 to 10.1 ?  do we achieve this by upgrading BPC add-on's on existing BW server?

3)How to separate BPC from BW ,and maintain the connections b/w BPC and BW after splitting?

4)when to perform UNICODE conversion? is it possible to perform UNICODE conversion while System copy(Export/Import)? 

Now we are still in planning phase, and we are expected to come up with single project plan(as one project),which need to cover all the above tasks. 🙂

Please share your views and suggestions on this requirement.

Thank you.

Sreekanth Reddy

[divyanshu_srivastava3 · Accepted solution]

Perhaps, this all is about homogeneous system copies and not migration.

I would suggest you to test both possible situations:

Case 1 - System Copy + DB upgrade + system upgrade

Case 2 - DB upgrade + system upgrade + system copy

Now, you should start with a POC for both cases, for eg use zNDM

1678565 - Prerequisites, Terms and Conditions for nZDM/SUM

Get the SUM guide/Upgrade guides and relevant notes.

Regards,

[Former Member · Accepted solution]

Hi Divyanshu,

Thanks for the response.

The current BW system is on NW 7.0 and it a dual stack system.

and

If we perform system copy(export/Import) method, it will ask to split ABAP and JAVA engines.

but our client don't want to split their  Duel stack BW system,and wanted to be at latest 7.4 netweaver level.

Is there any process,by which we can upgrade,BW form 7.0 to 7.4,and migrate to new data center(using Export/Import) with out splitting the Dual Stack ?

Thanks,

Sreekanth Reddy

[divyanshu_srivastava3 · Accepted solution]

Hi Sree,

I would say that your that your client should be presented with SAP suggestions on dual stack splits.

Perhaps, you should refer these 2 KBAs.

1655335 - Use Cases for Splitting Dual-Stack Systems

1797362 - Dual-Stack Split for Systems Based on SAP NetWeaver

Now for you BW system, if it's on the minimum release required to split, then you should 1st split it and then go for release upgrade.

BW update(if required)

System Split

Homogeneous system copy.+ System upgrade

Regards,

[karthikeyan_natarajan4 · Accepted solution]

Hi Sreekanth,

It's recommended to split the java stack before the system copy, as you are going to upgrade to 7.4. because from NW 7.4 dual stack is discontinued. Please look at this.

http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/60bf3650-e219-3010-ef93-d11928aa8...

regards

kartik

[Former Member]

Dear Experts,

One of our client is willing to migrate their entire ECC(ERP 6.0 SPS15) Landscape(3 system) to New data center.

while migrating,they are also  wanted upgrade.

Upgrade expectation:---

             Current:                                                  Expected:  

Windows 2003 R2                                             Windows 2012

SQL server 2005                                               SQL server 2012

ERP 6.0 - Unicode                                   ERP 6.0 with EHP7

As per my knowledge i want to go with below list of activities

Plan-A:

1)ECC migration (system copy Export/Import)

2) EHP7 upgrade.

Plan-B:

1. Install fresh ECC 6.0 system.

2. Restore the Backup of old existing system.

3. Perform EHP 7 Upgarde in newly installed system.

Could you please suggest me best possible way to go with it.

Kind Regards,

Gangadhara Reddy

[Reagan]

To move the existing systems to MSSQL 2012 and Windows 2012, the systems should have the minimum SP level. For the ERP system there is no need to do a system copy at first. I would get the DB upgraded to 2008 on the existing server and start CUUC (Combined Upgrade & Unicode Conversion) to upgrade the system to EHP7 and also get UC done. When you do CUUC and export will be taken. In order to reduce the downtime of this operation, you can install MSSQL 2012 in advance on the target server with Windows 2012 and make use of the parallel export and import to reduce the downtime. For the BW system you will need to split the stack if the target system should be based on NetWeaver 7.4

RB

[karthikeyan_natarajan4]

Hi Sree,

1. You can use combined upgrade and unicode conversion (CU&UC) method which will minimize your downtime and use migration monitor using parallel export/import. I believe it is applicable for both ECC and BW.

2. Yes you can upgrade the BPC add-ons in the same time while upgrading the BW system,

3. I am not sure about the splitting BPC from BW - let's wait for view from our SCN experts.

regards

kartik

[Former Member]

Hi Kartik,

Thanks for your valuable suggestions.

there is one more complexity in BW system copy and upgrade.

The BW current system is on NW 7.0 and it a dual stack system.

and

If we perform system copy(export/Import) method, it will ask to split ABAP and JAVA engines.

but our client don't want to split their  Duel stack BW system,and wanted to be at latest 7.4 netweaver level.

Is there any process,by which we can upgrade,BW form 7.0 to 7.4,and migrate to new data center(using Export/Import) with out splitting the Dual Stack ?

Thanks,

Sreekanth Reddy