Many Basis problems show up in the SAP application but originate in the database, the operating system or the communication between them. Since 1996 I have worked on all of these layers – in installation and operations as well as in migration and 3rd-level support.
This includes multi-terabyte databases and backup and recovery strategies.
- SAP systems
- SAP ERP/ECC and S/4HANA, CRM, SRM, BW, PI/XI, Enterprise Portal, Solution Manager and APO – ABAP and Java stack.
- Databases
- SAP HANA, Oracle, DB2 (including DB2/400), Informix and MaxDB; reorganisation, partitioning, backup and recovery.
- Operating systems
- Mainly AIX, as well as Linux (SUSE, Red Hat), Solaris, HP-UX, OS/400 and Windows Server.
- High availability and virtualisation
- PowerHA, Veritas Cluster Server, Libelle for disaster recovery; VMware environments.
- Network and security
- Setting up connections and analysing communication errors; SSL, SSO and encryption.
- Automation and development
- Shell, AWK, Perl and Python for monitoring and routine tasks; ABAP, C and Java via RFC and BAPI interfaces.