S/4HANA Sizing Guide for New Installation and Upgrade

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Knowing the correct sizing requirements for SAP S/4HANA isn’t only a technical requirement but also an important decision that can dramatically improve the system’s performance, efficiency, and future capacity. In this blog, we’ll provide you with the various methods and techniques available to size memory CPUs and disk storage.

Understanding the importance of SAP S/4HANA size is crucial for optimizing your organization’s future decisions. It involves identifying software and hardware components that maximize SAP’s performance, including processing capacity, memory sizes, storage space, and network load limits. As an IT professional or decision maker, your role in the S/4HANA sizing process is integral, as it helps you identify the best components for your business needs. This knowledge can shape our systems for generations and ensure that decisions are made correctly for your organization.

HANA Sizing

Key Considerations for S/4HANA Sizing

Planning for S/4HANA requires careful evaluation of CPU, memory, and disk space needs. three critical elements for efficiency and performance. SAP’s extensive range of tools and reports simplifies the process, ensuring you have all the tools required to ensure you are sizing your system correctly.

Accurate sizing is crucial for making informed decisions, increasing efficiency, minimizing resource misuse, and avoiding system bottlenecks. It’s not just a technical requirement; your contribution to accurately sizing systems like SAP S/4HANA is vital.

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Executing S/4HANA Sizing: Tools and Resources

The S/4HANA Sizing Tool is a crucial resource for S/4HANA projects, providing quick guidelines for greenfield projects and ECC system upgrades, relying on user input for accuracy in the sizing process.

The transition from ECC to S/4HANA brings significant advantages, especially when leveraging S/4HANA, such as the ABAP for the HANA Sizing report available via OSS Note 1872170. This invaluable tool provides estimates for memory size post-conversion to a database, offering precise evaluations of the system’s needs and paving the way for a transformative journey.

What tools can I use for S/4HANA sizing?

SAP provides several tools for sizing, such as the SAP HANA Quick Sizer, SAP Notes and certified consultants to estimate required resources based on your business requirements.

Steps for Using S4HANA Quick Sizer:

Use the SAP links provided to you and access this tool.

Let OSS Note 2467172 be your guiding light in sizing Fiori applications based on user numbers. Once the necessary data about users, processes, and system usage has been inputted, an estimated size estimate should be generated. Sizing Estimator for Upgrading Existing Systems.

Memory sizing is not just a step, it’s a critical one when transitioning from ECC to S/4HANA. To begin, organizations should follow OSS note 1872170 and utilize the ABAP report /SDF/HDB_SIZING in a development environment in order to obtain accurate results.

This report gives an estimate of how much memory your system will require after database conversion, providing insight into potential hardware upgrades or system optimization strategies such as data archiving or system tuning.

CPU Sizing for S/4HANA

Sizing your CPU correctly is just as important as memory. OSS note 1793345 provides detailed guidance on how to size your CPU for SAP Suite on HANA, ensuring your system can handle the increased computational load S/4HANA may introduce.

Disk Space Sizing for S/4HANA

Disk space sizing is often impacted by how you manage data aging in SAP. There are several OSS notes that offer guidance on this topic, including:

  • 2869647 – Guidance for using Data Aging in SAP S/4HANA
  • 2416490 – FAQ: SAP HANA Data Aging in SAP S/4HANA
  • 2818267 – Data Volume Management during migration to SAP S/4HANA
  • Data aging helps reduce storage requirements by managing old data more efficiently, leading to potential savings in disk space and system costs.

Best Practices for Running Sizing Reports

  • Update OSS Notes: Before running the /SDF/HDB_SIZING program, make sure to update your system with the latest corrections. OSS notes 3104284 and 3149498 offer advanced corrections for HANA memory sizing reports.
  • Run in the Background: To avoid system delays, execute these reports in the background. Results can then be retrieved from the spool of the batch job.
  • Test in Development: Always run your sizing tools in a development environment before applying them to production to ensure the integrity and accuracy of your data.

Conclusion

Installing or upgrading SAP S/4HANA will significantly increase your company’s operational flexibility and efficiency. As we’ve discussed before the sizing process is a crucial first step that requires thorough understanding of the present and future requirements for workload. 

Implement an S/4HANA system that utilizes SAP resources and tools, enhancing scalability and efficiency. This strategy should not only meet immediate needs but also serve as a framework for future innovation and sustainable expansion.

You are a vital element in this transformation process. So keep this in mind when you take on this challenge. The S/4HANA system is the foundation of your digital enterprise with knowledge and dedication at the core of it, allowing new possibilities for company’s success and propelling it to new heights. Change can be a huge source of reward when it is approached properly. Let S/4HANA contribute to the success of your business and could lead to greater efficiency as well as agility and expansion!

What factors should be considered during the sizing process?

Important factors to consider are your current system load the expected growth rate and peak usage times. the behavior of users, the number of transactions, as well as any data or code that you have created that could affect performance.

Can I size S/4HANA for both new installations and upgrades?

S/4HANA sizing is applicable to new installations as well as upgrades. When new systems are installed, this aids in the setup of the initial system, and for upgrades, it assures that the system in place can cope with the new requirements.

What are the benefits of accurate S/4HANA sizing?

A proper sizing process leads to improved performance, efficiency in cost and the ability to scale. It assists in making informed decisions while also optimizing processes and aiding the growth of businesses.

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