SAP Note 21960 - Several instances/systems on one UNIX computer

Component : Installation Tools - Memory ManagementBC-OP-AIX IBM AIXBC-OP-HPX HP-UXBC-OP-LNX L

Solution : https://service.sap.com/sap/support/notes/21960 (SAP Service marketplace login required)

Summary :
This SAP Note discusses the installation and operation of multiple SAP systems and third-party software on a single host. It highlights the technical feasibility and supported configurations under SAP's guidelines, emphasizing considerations for resource allocation and system impact due to sharing a host. The document outlines practical scenarios such as running multiple instances or systems and integrating SAP with external applications. Key areas include memory management, CPU allocation, instance numbering, and operating system compatibility, with advice to carefully plan hardware resources, consult with partners, and align with SAP's configuration recommendations for optimal performance and stability. Different SAP instances may require unique OS versions or patches, posing potential complications. It advises thorough consultation with hardware and database partners to ensure compatibility and sufficient resource provisioning.

Key words :
individual servers high fail-safe high flexibility, cputhe required total cpu power, memory managementall relevant sap releases, additional spool work processes, longer test os patches, operation system-dependent aspects, apo optimizerthe apo system, define sufficient swap space, release/operating system/database combination, file /usr/sap/trans/

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