PM891 3BSE053240R控制器模块
转换以及技术停机时间。除了这些固有的优化之外，您还可以选择应用其他运行时优化，但这些优化可能不适用于所有场景。在应用任何这些优化选项之前，请确保您了解以下单个注释中解释的边界条件和含义。6简化项目检查的运行时间○ 有关CLS4SIC_CO_PC_ACT_MIG检查类的运行时，请参阅SAP Note 2432689。此说明说明如何跳过物料分类帐迁移的预检查。这是一个先导音符。要获取注释，请打开支持组件FIN-MIG-ML上的事件。○ 有关CLS4SIC_MM_IM_SI1检查类的运行时，请参阅SAP Note 2753888。本说明说明如何跳过KALNR检查。SAP S/4HANA 1809入门P U B L I C 13 SUM宕机优化转换指南有关Software Updated Manager宕机优化的更多信息，请参阅https://blogs.SAP。com/2019/03/08/system-conversion-to-sap-s4hana-owntime-optized-conversion/。○ 有关如何使用SUM优化标准系统转换方法的信息，请参阅：○ SAP Note 2351294 SAP S/4HANA系统转换/升级：减少技术停机时间的措施○ SAP Note 1616401升级、Ehp和支持包实施中的并行性○ 有关优化DMO性能的信息，请参阅https://blogs.sap.com/2019/03/08/system-conversionto-sap-s4hana-downtime-optimized-conversion/ ○ 有关停机时间优化的转换，请参阅SAP Note 2293733停机时间优化转换到SAP S/4HANA的先决条件和限制○ 有关nZDT（接近零停机服务），请参阅SAP Note 693168 Minimized Downtime Service（MDS）14 P U B L I C Conversion Guide For SAP S/4HANA 1809 Getting Started 3 Preparation the Conversion SAP S/4HANA System Conversion:Prepare Phase For the Conversion to SAP S/4ANA you have Prepare a total project plan and schedule the tasks。本节中描述的准备活动让您了解所涉及的内容。有关流程和工具的简短概述，请参阅转换流程概述[第8页]。 注意：此外，请查看软件更新管理器指南“使用SUM 2.0将系统转换为SAP S/4HANA”的计划部分，网址：https://support.sap.com/sltoolset软件后勤工具集（SL工具集）系统维护。 注意：您可以在本指南中找到跨应用程序的准备步骤；通过6简化项目检查和自定义代码检查以及6简化项目目录或SAP就绪检查，您可以获得特定于应用程序的准备步骤。本节还列出了一些最重要的特定于应用程序的准备步骤：$application-6specific preparation列表[第27页]。另请参阅SAP Note 2669982.SAP S/4HANA 1809转换指南准备转换P U B L I C 15 3.1系统要求Unicode作为转换的先决条件，您的系统需要是Unicode系统。如果您的系统仍然是非Unicode的，您可以采用两步转换方法：首先，以一个受支持的起始版本为目标执行组合升级和Unicode转换，然后执行到SAP S/4HANA的转换。（包括作为标准支持）独立报告SAP Solution Manager不需要不需要用户界面基于云的web界面SAP GUI包括检查6简化项目相关性自定义代码推荐的SAP Fiori应用程序附加兼容性SAP自定义开发项目SAP S/4HANA大小业务功能6简化项目的相关性在转换或升级由软件更新管理器（SUM）调用否是强制否是用例转换到SAP S/4HANA转换到SAP S/CHANA升级到更高版本SAP S/4HANA 2.5运行时优化系统转换过程和工具已经包括许多优化，以减少
the conversion as well as the technical downtime. In addition to these inherent optimizations, you can optionally apply additional runtime optimizations which may, however, not be applicable to all scenarios. Please ensure that you understand the boundary conditions and implications explained in the individual notes mentioned below, before applying any of these optimization options. Runtime of the 6implification Item Check ○ For the runtime of the CLS4SIC_CO_PC_ACT_MIG check class, see SAP Note 2432689 . This note explains how to skip the pre-checks for the material ledger migration. It is a pilot note. To get access to the note, please open an incident on the support component FIN-MIG-ML. ○ For the runtime of the CLS4SIC_MM_IM_SI1 check class, see SAP Note 2753888 . This note explains how to skip the KALNR check. Conversion Guide for SAP S/4HANA 1809 Getting Started P U B L I C 13 SUM downtime optimization For more information about the Software Updated Manager downtime optimization, see https:// blogs.sap.com/2019/03/08/system-conversion-to-sap-s4hana-downtime-optimized-conversion/ . ○ For information about how to optimize the standard system conversion approach with the SUM, see: ○ SAP Note 2351294 SAP S/4HANA System Conversion / Upgrade: Measures to reduce technical downtime ○ SAP Note 1616401 Parallelism in the Upgrades, EhPs and Support Packages implementations ○ For optimizing DMO performance, see https://blogs.sap.com/2019/03/08/system-conversionto-sap-s4hana-downtime-optimized-conversion/ ○ For downtime optimized conversion, see SAP Note 2293733 Prerequisites and restrictions of downtime-optimized conversion to SAP S/4HANA ○ For nZDT (near Zero Downtime Service), see SAP Note 693168 Minimized Downtime Service (MDS) 14 P U B L I C Conversion Guide for SAP S/4HANA 1809 Getting Started 3 Preparing the Conversion SAP S/4HANA System Conversion: Prepare Phase For the conversion to SAP S/4HANA you have to prepare an overall project plan and schedule the tasks. The preparation activities described in this section give you an idea of what is involved. For a short overview of the process and tools, see Overview of the Conversion Process [page 8]. Note In addition, review the planning section of the Software Update Manager guide System Conversion to SAP S/4HANA using SUM 2.0 at https://support.sap.com/sltoolset Software Logistics Toolset (SL Toolset) System Maintenance . Note You find the cross-application preparation steps in this guide; you get the application-specific preparation steps with the 6implification Item-Check and custom-code checks and with the 6implification Item Catalog or the SAP Readiness Check. Some of the most important application-specific preparation steps are also listed in this section: List of $pplication-6pecific Preparations [page 27]. Please see also SAP Note 2669982 . Conversion Guide for SAP S/4HANA 1809 Preparing the Conversion P U B L I C 15 3.1 System Requirements Unicode As a prerequisite for the conversion, your system needs to be a Unicode system. If your system is still nonUnicode, you can follow a two-step conversion approach: First, perform a combined upgrade and Unicode conversion with one of the supported start releases as target, then perform the conversion to SAP S/4HANA.(included as standard support) Standalone report SAP Solution Manager Not required Not required User Interface Cloud-based web interface SAP GUI Included Checks 6implification item relevance Custom code Recommended SAP Fiori apps Add-on compatibility SAP Custom Development projects SAP S/4HANA sizing Business functions 6implification item relevance Check of system consistency before conversion or upgrade Called by Software Update Manager (SUM) No Yes Mandatory No Yes Use Cases Conversion to SAP S/4HANA Conversion to SAP S/4HANA Upgrade to a higher SAP S/4HANA release 2.5 Runtime Optimization The system conversion process and tools already include many optimizations to reduce the overall runtime of
