System Requirements

Before installing Adaptive Server version 15.7 SP100, ensure that your system is updated with the latest patches and system requirements. Do not use a patch that is earlier than the version suggested for your operating system. Use the patch recommended by the operating system vendor, even if it supersedes the patch listed.

To list all currently installed patches and display the operating system version level, enter:

lslpp -L | grep devices.fcp.disk.rte

You see:

devices.fcp.disk.rte 6.1.0.3  COMMITTED  FC SCSI CD-ROM, Disk,

Note: The Java Virtual Machine (JVM) and associated Adaptive Server support require at least 250MB of virtual memory space to start, and may need more, depending on the requirements of the individual Java executions. You may need to adjust the memory parameters when running Java to ensure that it has enough virtual memory space to start, and that both Adaptive Server and Java tasks can successfully coexist.

In particular, systems that have Adaptive Server total memory set to a value higher than 1.5GB (or 2.5GB on some enterprise servers) may experience problems, and you may have to reduce Adaptive Server total memory.

IBM AIX Requirements	Description
Platform	Processor 64-bit – Power6, Power5, Power4, and PowerPC 970 Kernel – 64-bit Default user stack size – 148KB
Operating system requirements	AIX 6.1 and AIX 7.1. Hardware – IBM Power, System p, System i, System p5, System i5, eServer p5, eServer i5, eServer pSeries, and BladeCenter blades Operating system AIX 6.1 runs based on POWER4, PPC970, POWER5 and POWER6 processors. AIX OS IBM Power, System p, System i, System p5, System i5, eServer p5, eServer pSeries and eServer i5 servers, and BladeCenter blades. Updates – Fileset devices.fcp.disk.rte 6.1.0.3 or higher Preferred RAM – at least 1G
Memory	Minimum RAM required for Adaptive Server – 272MB Minimum RAM per additional user – Approximately 364KB
Disk space
Operating system patches	AIX 6.1 and AIX 7.x. Contact IBM directly to obtain these AIX patches to fix "Completion event not sent for IOCP," a known AIX issue: AIX 6.1.x – IV15938; IV13753; IV18609; IV18396 AIX 7.1.x – IV15969; IV15793; IV10828

Ensure that you have the required operating system patches for the Java Runtime Environment (JRE) version 7.

Information about the required operating system patches is available from http://www.ibm.com/java .

See the Clusters Users Guide for hardware requirements for using Infiniband Interconnect on a production system. File system devices are not supported when running on multiple nodes.

If you intend to run the cluster under Symantec Storage Foundation for Sybase Cluster Edition, see Using the Cluster Edition with the Veritas Cluster Server, in the Clusters Users Guide. Veritas Cluster Server for Sybase Cluster Edition is supported only on Solaris Sparc64 and Linux x86-64; it is not available for Solaris x86-64.

Database devices in the Cluster Edition must support SCSI-3 persistent group reservations (SCSI PGRs). Cluster Edition uses SCSI PGRs to guarantee data consistency during cluster membership changes. SAP cannot guarantee data consistency on disk subsystems that do not support SCSI PGRs (such a configuration is supported for test and development environments that can tolerate the possibility of data corruption).