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SAP ERP migration planning

Jan 25, 2017 at 02:17 PM

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Hello Experts,

We have to migrate one ERP system from Linux to Solaris.

We have a system QA1- ERP 6.0 on Oracle-Linux (server 1).

We have to migrate the system into Oracle-Solaris (server 2).

The steps I am thinking:

1. New Install QA1-ERP 6.0 in Solaris on Oracle (server 2).

2. Take export using SWPM from QA1 Linux (server 1).

3. Import the exported dump into QA1- Solaris (server 2).

Can anyone let me know whether the export of different operating system could be imported on another operating system without any special preparation? Any experience?

What will be good documents I can refer for this migration activity- planning and execution?

Best Regards.

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3 Answers

Matt Fraser
Jan 26, 2017 at 04:49 PM
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Hi Sujit,

First off, similar to your other question about where to find the installation guide for SAP ERP, here is the path you need for the System Copy guide: http://service.sap.com/instguides -> SAP Business Suite Applications -> SAP ERP -> SAP ERP 6.0 -> Installation -> System Copy: Systems Based on SAP NetWeaver 7.0/7.0 EHPs -> UNIX: <stack> (i.e., ABAP, Java, or dual-stack).

In this case you are changing the OS, so as Harish says it is a heterogeneous system copy (aka OS/DB Migration). In the SWPM tool, you will need to choose the export/import database-independent method, and not the backup/restore or detach/attach database-specific method.

Your steps are not quite correct. You will actually start with your Step 2, i.e. take the export via SWPM of your source system. Then your steps 1 and 3 are essentially combined, as you will run SWPM on the target system to simultaneously install the new system while using the export dump as the source data. The tool and the guide will walk you through this process. So, essentially, you do not install your target SAP system in advance; just set up the OS and database appropriately as you would for any new install.

I wrote about some of my own experiences performing heterogeneous system copies in https://blogs.sap.com/2015/06/02/system-migration-performance-observations/.

p.s. I adjusted the tags on your question to reflect that this is a Software Logistics question, not an SAP ERP question.

Cheers,
Matt

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Harish Karra Jan 25, 2017 at 06:46 PM
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Hi Sujit,

Export/Import process uses database/OS independent flat files, so export dump can be imported into any OS/DB.

Refer Heterogeneous system copy guide for more info and steps to perform this. Even Google can give you references on Heterogeneous system copy.

Regards,

Harish Karra

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Reagan Benjamin
Jan 30, 2017 at 10:00 PM
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This is a migration (Heterogeneous System Copy). You need to get someone certified to do it. Is there a reason why you are migrating the systems from Linux to Solaris? I have seen the opposite. If you really want to move away from Linux then consider AIX (Just a recommendation). Like Matt suggested there is no need to set up the target system in advance. You set up the target system during the import. Of course you can save time by installing the database software in advance. The standard system copy guide contains the information for the export and import. As this is a Heterogeneous System Copy there are some tasks performed on the source system prior to the export so you also need to perform those tasks. Not sure whether there is a change in the policy but SAP only supports if this is done by a certified consultant.

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