| copyright | lastupdated | subcollection | keywords | ||
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2024-11-17 |
pattern-sap-on-powervs |
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{: #migration-design}
There are several migration scenarios, but the most straight-forward is a direct "lift-and-shift" (homogeneous) where the Infrastructure and SAP versions remain the same. For example, on-premises SAP NetWeaver ABAP 7.0 running on VMWare to the same environment on cloud. Migration from on-premises to another infrastructure platform or SAP version (heterogeneous) can become more complex, especially when combined with a DB conversion or application server upgrade.
For a list of migration options and tools, see Moving SAP Workloads.
Types for SAP Migration :
There are two types of SAP migration categories:
• Homogeneous - Target has the same OS/DB/SAP versions as the source.
• Heterogeneous - Target has a different OS, SAP or database type or version than the source
The following tables summarize various approaches for a homogeneous and heterogeneous migration; all dependent on client environments and preferences.
{: #homogeneous-migration}
| Migration method | Technique summary | Advantages and concerns | Associated tools** |
|---|---|---|---|
| Virtual Machine (VM) Backup and Restore | Create lpar image while application is offline. Use the image to create a VM on IBM Power System Virtual Server | - Lift and shift operation. \n - Potentially big downtime window so it is best for smaller images \n - Configurations may need to be updated post migration. | Aspera for data transfer \n IBM Expert Labs for optional professional migration service |
| Database Backup and Restore | Backup the source database using native DBMS tools. \n Restore backup copy to a "shell" copy of source system prebuilt on PowerVS, using identical versions of software. | - Time to transfer large database backups may require big downtime window. \n - • Target needs same/compatible vendor software to restore from backups file(s) received. | Aspera for initial data transfer \n Backup/Restore tools for backup and recovery, as well as delta sync: Veeam, Spectrum Protect and Cobalt Iron by Compass |
| Fresh Build and Copy the Config | Build a fresh copy of the SAP system on PowerVS and copy/reenter configuration parameters as required. | Good for applications and middleware servers not requiring data transfer. Risk of error introduction if post installation manual procedures are applied to reproduce exact configuration. | |
| Create a Disaster Recovery System | Create a DR system on IBM Power System Virtual Servers and establish continuous data replication until Failover during GoLive | Minimum downtime. | Database native such as HANA System Replication \n Continuous Data Protection: Veeam, Spectrum Protect \n Third Party tools for replication, such as LinBit DR |
| {: caption="Homogeneous migration" caption-side="bottom"} |
{: #heterogeneous-migration}
| Migration method | Technique summary | Advantages and concerns | Associated tools |
|---|---|---|---|
| SAP Export/Import | Move or Re-Platform to different CPU Architecture, OS, or database. Uses System | - Extended downtime window. \n - Network bandwidth may impact the performance of migration negatively | SAP tool SWPM, DMO is an option allowing DB conversion at the same time of migration |
| Two Step Migration: Lift and Shift, followed by transformation | Create a staging environment in IBM Cloud as a target to Lift&Shift the on-premise system. \n Migrate the staging system to IBM Power System Virtual Server with desired OS/DB/SAP version | Multiple Extended downtime windows. \n Complex execution requires expert level technical knowledge and planning skills | SAP software to build "shell" system; \n Aspera (optional) to expedite lift and shift transfer; \n SAP SUM for Netweaver upgrade;\n SAP SWPM with DMO for migration with database conversion |
| IBM Services and Partner Tools (e.g. SNP) SNP{: external} | IBM Consulting provides enterprise system migration services from planning to execution. | Expertise of IBM Consulting \n Minimal downtime. | SAP installation software; \n SNP CrystalBridge (via IBM Consulting); \n SNP Cockpit (via IBM Consulting). |
| {: caption="Heterogeneous migration" caption-side="bottom"} |
IBM Migration services:
- Expert Labs
- IBM Services for Cloud Migration
- IBM Cloud Partners
More Information on SAP Migration to IBM Power Systems Virtual Servers :