Front cover -- Contents -- Notices -- Trademarks -- Preface -- The team that wrote this redbook -- Become a published author -- Comments welcome -- Chapter 1. Introducing high availability and automation for SAP -- 1.1 High availability definitions -- 1.1.1 Degrees of availability -- 1.1.2 Types of outages -- 1.2 High availability and automation objectives for SAP -- 1.2.1 No planned outages -- 1.2.2 Transparent failover -- 1.2.3 Reduced operator errors -- 1.2.4 Health check for application problems -- 1.3 SAP high availability solution overview -- 1.3.1 SAP high availability -- 1.3.2 Automation of SAP high availability -- 1.3.3 Benefits of System Automation for OS/390 -- Chapter 2. Architecture of the SAP high availability solution -- 2.1 Architecture components -- 2.1.1 New SAP enqueue instance replacing central instance concept -- 2.1.2 Network -- 2.1.3 File system -- 2.1.4 Database -- 2.1.5 Application design -- 2.2 Failure scenarios and impact -- 2.2.1 Old-style central instance without data sharing -- 2.2.2 Data sharing, sysplex failover, double network (single central instance) -- 2.2.3 Enqueue replication, NFS failover-full-blown HA -- Chapter 3. Planning and preparing for the SAP high availability solution -- 3.1 SAP high availability solution configuration -- 3.1.1 Hardware requirements -- 3.1.2 Software requirements -- 3.2 Naming conventions -- 3.3 Network configuration -- 3.3.1 Network hardware components -- 3.3.2 Networking software components -- 3.4 File system setup -- 3.4.1 SAP directory definitions -- 3.5 DB2 setup -- 3.5.1 DB2 data sharing -- 3.5.2 ARM policy -- 3.6 Integrated Command Level Interface Server (ICLI Server) -- 3.7 Netview and System Automation basic setup -- 3.8 SAP installation -- 3.8.1 New SAP system installation -- 3.8.2 Preparing an existing SAP system for HA -- 3.8.3 SAP license -- 3.8.4 SAP logon groups.

Chapter 4. Customizing SAP for high availability -- 4.1 Installing and configuring the enqueue instance -- 4.1.1 Getting the standalone enqueue server code from SAP -- 4.1.2 Configuring the enqueue instance -- 4.1.3 SAP profile parameters -- 4.2 Configuring SAP for System Automation -- 4.2.1 ICLI servers -- 4.2.2 Enqueue instance -- 4.2.3 Application server instances -- 4.2.4 saposcol -- 4.2.5 rfcoscol -- 4.2.6 saprouter -- 4.2.7 Summary of start, stop and monitoring commands -- Chapter 5. Customizing System Automation for OS/390 for SAP -- 5.1 Preparing SA OS/390 for SAP HA -- 5.1.1 Before you start -- 5.1.2 Setting initialization defaults for SA OS/390 (AOFEXDEF) -- 5.1.3 Setting the region size for NetView to 2 GB -- 5.1.4 Customizing Status Display Facility (SDF) -- 5.1.5 Sending UNIX messages to the syslog -- 5.1.6 Setting MAXFILEPROC in BPXPRMxx -- 5.2 Defining the SAP-related resources -- 5.2.1 Overview of the resources -- 5.2.2 Naming convention -- 5.2.3 Classes -- 5.2.4 Database server -- 5.2.5 Enqueue instance and enqueue replication server -- 5.2.6 Application servers -- 5.2.7 SAP RED local applications -- 5.2.8 NFS server -- 5.2.9 saprouter -- 5.2.10 SAP local application -- 5.2.11 Defining superior groups -- 5.3 Overall picture -- 5.4 Summary tables -- 5.4.1 Classes -- 5.4.2 Applications -- 5.4.3 Application groups -- 5.5 Extension for DFS/SMB -- 5.5.1 Additions to the SA OS/390 policy -- 5.5.2 Additions to SDF -- 5.5.3 Additions to the Automation Table -- Chapter 6. Verification procedures and failover scenarios -- 6.1 Overview of the test scenarios -- 6.1.1 Classification of the test scenarios -- 6.1.2 Test scenarios to verify the SA OS/390 policy -- 6.1.3 Scenarios that we tested -- 6.2 Test methodology -- 6.2.1 Purpose of the test -- 6.2.2 Expected behavior -- 6.2.3 Setup of the test environment.

6.2.4 Verification of resource status -- 6.2.5 Preparation for the test (unplanned outage only) -- 6.2.6 Execution of the test -- 6.2.7 Verifications after the test -- 6.2.8 Analyze problems -- 6.3 Planned outage scenarios -- 6.3.1 Stop and start of the entire SAP RED system -- 6.3.2 Startup of all LPARs one after the other -- 6.3.3 Shutdown and restart of an LPAR -- 6.4 Unplanned outage scenarios -- 6.4.1 Failure of the enqueue server -- 6.4.2 Failure of the message server -- 6.4.3 Failure of the ICLI server -- 6.4.4 Failure of the NFS server -- 6.4.5 Failure of a TCP/IP stack -- 6.4.6 Failure of an LPAR -- Chapter 7. Problem determination methodology -- 7.1 SA/390 problem determination -- 7.1.1 NetView netlog -- 7.1.2 z/OS SYSLOG -- 7.1.3 Message Processing Facility -- 7.1.4 Problem determination in System Automation for OS/390 -- 7.1.5 UNIX messages -- 7.1.6 If nothing happens -- 7.1.7 When you are really lost -- 7.1.8 Get help from the Web -- 7.2 Where to check for application problems -- 7.3 Checking the network -- 7.4 Checking the status of the Shared HFS and of NFS -- 7.5 Checking the status of DB2 and SAP connections -- Chapter 8. Change management -- 8.1 Updating the SAP kernel -- 8.1.1 Updating the SAP kernel (release 4.6) -- 8.1.2 Rolling kernel upgrade -- 8.2 Updating the ICLI client and server -- 8.2.1 Rolling upgrade of the ICLI client -- 8.2.2 Rolling upgrade of the ICLI server -- 8.2.3 Updating to an ICLI server with different protocol version -- 8.3 Updating DB2 or z/OS -- Appendix A. Network setup -- A.1 z/OS network settings -- A.1.1 z/OS network settings shared by both LPARs -- A.1.2 z/OS LPAR SC42 -- A.1.3 z/OS LPAR SC04 -- A.1.4 OSA-Express Fast Ethernet definitions for z/OS -- A.2 Linux for zSeries network settings -- A.2.1 Zebra setup - OSPF -- A.2.2 Zebra setup - Zebra -- A.3 Domain Name Server (DNS) definitions.

Appendix B. File system setup -- B.1 NFS server procedure -- B.1.1 NFS export file -- B.1.2 NFS attribute file -- B.2 NFS client procedure -- B.3 Mount commands on Linux /etc/fstab -- B.4 BPXPRM member in SYS1.PARMLIB -- Appendix C. DB2 and ARM setups -- C.1 DB2 ZPARMS -- C.1.1 ZPARM for subsystem D7X1 -- C.1.2 ZPARM for subsystem D7X2 -- C.2 The ARM policy -- C.2.1 The ARM policy JCL -- Appendix D. NetView and System Automation for OS/390 basic setup -- D.1 Status Display Facility definition -- D.1.1 AOFPSYST -- D.1.2 AOFSAP -- D.1.3 AOFTSC04 -- D.2 Sample REXX procedure -- D.2.1 SANCHK -- Appendix E. SAP customization for high availability -- E.1 Shell scripts used for automation -- E.2 SAP profiles -- Appendix F. Additional material -- Locating the Web material -- Using the Web material -- How to use the Web material -- Related publications -- IBM Redbooks -- Other resources -- SAP notes -- Referenced Web sites -- How to get IBM Redbooks -- IBM Redbooks collections -- Index -- Back cover.