SAP R/3 4.6B on DB2 for OS/390 Experiences

Source: www.e3sciences.com
Topic: SAP Tutorial

Short Desciption:
Configuration (cont) • ICLI address space (Integrated Call Level Interface) - Provides remote SQL ... all through the installation and testing phases • Follow the guide for WLM implementation in SAP R/3 ...

 

Content Inside:
SAP R/3 4.6B on DB2 for OS/390 Experiences Franco Vitale e3 Sciences Francov@e3sciences.com Configuration • SAP 4.6B • OS/390 2.8 • DB2 V6.1 • TCP/IP 2.8 • 9672-R26 - Majority of storage allocated to Real - Small amount of expanded Configuration (cont) • 3 Lpars - Dev, QA, Prod • No other work running on machine apart from SAP Configuration (cont) • SAP Central Instance runs on OS/390 (Application server) -NEW • Database on OS/390 • SAP kernel code resides in HFS files • All user code (ABAPS etc) are maintained in DB2 tables • Application Servers on NT Configuration (cont) • ICLI address space (Integrated Call Level Interface) - Provides remote SQL connection between remote application servers and database servers • TCP/IP options ESCON connection OSA/2 FAST/Express Experiences • Ensure that you read and complete the items in UNIX System Services Planning (SC28-1890-xx) - Make UMASK settings - C++ Environment variables - Magic Numbers Lex - Yac File utility - Man pages RACF Security profiles BPX.** Security • File Permissions • Group authorities SAPSYS • User authorities <SAP>ADM • UNIXPRIV class • Ensure that you have reviewed all facility classes required for SAP in SAP R/3 Planning Guide Security (cont) • Issue with using shared RACF database which is still being investigated - RACF does not support Unix Network Information System (NIS) - Needed for shared data access (/usr/sap/trans) NFS • Used to share HFS files between OS/390 LPARs • Slow when exporting/importing between OS/390 systems • Manual incorrect for mount of NFS files between OS/390 (BINARY,XLAT(Y)) Samba • Used to export HFS files to NT application servers • Check file permissions issues in samba config file • Sync uids & passwords between NT and OS/390 otherwise problems occur USS • Performance and tuni ...

 

 

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