DB2 Version 9.7 for Linux, UNIX, and Windows

Installation requirements for DB2 servers and IBM data server clients (AIX)

Before you install DB2® database products on AIX® operating systems, ensure that the system you choose meets the necessary operating system, hardware, software, and communications requirements.

Important: For the most up-to-date installation requirements for DB2 database products, you must start using the System requirements for IBM® DB2 for Linux, UNIX, and Windows and System requirements for IBM DB2 Connect™ technotes. These technotes use IBM Software Product Compatibility Reports (SPCR). With the SPCR tool, you can locate and find complete lists of supported operating systems, system requirements, prerequisites, and optional supported software for DB2 database products. This DB2 Information Centre topic might be removed in a future release or fix pack.

DB2 database products are available in several different editions. Some DB2 database products and features are only available on specific operating systems. See DB2 database product and packaging information for a list of DB2 database products that are available on each operating system.

To install a DB2 database product, the following minimum requirements must be met:

Table 1. AIX installation requirements
Operating System	Hardware
AIX Version 5.3 64-bit AIX kernel is required AIX 5.3 Technology Level (TL) 9 and Service Pack (SP) 2 Minimum C++ runtime level requires the xlC.rte 9.0.0.8 and xlC.aix50.rte 9.0.0.8 (or later) filesets. These filesets are included in the June 2008 IBM C++ Runtime Environment Components for AIX package. AIX Version 6.1² 64-bit AIX kernel is required AIX 6.1 TL 2 Note: POWER7® systems³ require AIX 6.1 TL4. Minimum C++ runtime level requires the xlC.rte 9.0.0.8 and xlC.aix61.rte 9.0.0.8 (or later) filesets. These filesets are included in the June 2008 IBM C++ Runtime Environment Components for AIX package. AIX Version 7.1⁴ 64-bit AIX kernel is required AIX 7.1.0 General Availability (GA) Minimum C++ runtime level requires the xlC.rte 11.1.0.0 and xlC.aix61.rte 11.1.0.0 (or later) filesets. These filesets are included in the April 2010 IBM C++ Runtime Environment Components for AIXV11.1 package. The minimum requirement for running DB2 Version 9.7 on AIX Version 7.1 is DB2 Version 9.7 Fix Pack 3 (V9.7.0.3).³	64-bit Common Hardware Reference Platform (CHRP) architecture, excluding POWER3 processor-based systems. ¹ All processors that are capable of running the supported AIX operating systems.

¹To verify that it is a CHRP architecture system, issue the command lscfg and look for the following output: Model Architecture: chrp. For POWER3 processor-based systems, first upgrade to POWER4 processor-based systems before installing DB2 Version 9.7. POWER3 processor-based systems are not supported in DB2 Version 9.7.
²In AIX 6.1 there are two types of Workload Partitions (WPARs): system WPARs and application WPARs. DB2 installation is supported only on a system WPAR. AIX 6.1 also supports the ability to encrypt a JFS2 file system or set of files.
³Additional considerations for POWER7 systems:
- If you have IBM Tivoli® System Automation for Multiplatforms (SA MP) 2.2..x or SA MP 3.1.x Reliable Scalable Cluster Technology (RSCT) 2.5.4.0 installed, you require the SA MP 3.1.0.6 special package with RSCT 2.5.4.2. Version 9.7 Fix Pack 2 and later fix packs include an updated version of SA MP which includes an RSCT level that supports POWER7 systems.
- DB2 products running on POWER7 systems support Active Memory™ Expansion.
- IBM Tivoli Monitoring for Databases: DB2 Agent (ITMA) is not supported on POWER7 systems.
- For other considerations or to manually enable POWER7 support, see www.ibm.com/support/docview.wss?&uid=swg21420730.
⁴To use the DB2 High Availability Feature, you need to apply Version 9.7 Fix Pack 3 or a later fix pack. These fix packs contain an updated version ofIBM Tivoli System Automation for Multiplatforms (SA MP).

Note: If the minimum operating system requirements were applied using an operating system upgrade rather than using a new operating system installation, you must install I/O completion ports (IOCP) separately. You can obtain the IOCP libraries from the AIX installation CD and configure IOCP on the DB2 server. For a client only installation, IOCP is not required. For more information, see configuring IOCP on AIX.

Software considerations

For application development and runtime considerations, see the topics in Supported programming languages and compilers for database application development.
You can download the latest IBM C++ Runtime Environment Components for AIX at the IBM AIX XL C and C++ support website.
(Clients only) If you plan to use Kerberos Authentication, you require IBM Network Authentication Service client v1.4 or later.
Use the bosboot command to switch to the 64-bit kernel.
To switch to a 64-bit kernel, you require root authority and enter the following commands:
```
   ln -sf /usr/lib/boot/unix_64 /unix
   ln -sf /usr/lib/boot/unix_64 /usr/lib/boot/unix
   bosboot -a
   shutdown -Fr
```
One of the following browsers is required to view online help and to run First Steps (db2fs):
- Firefox 2.0 and later
- Mozilla-based browsers 1.7 and later
An X Window System software capable of rendering a graphical user interface is required if you want to use the DB2 Setup wizard to install a DB2 product on Linux or UNIX operating systems.
Live Partition Mobility (LPM) is supported in partitioned database environments with multi physical node configurations.
For details regarding known AIX issues, see www.ibm.com/support/docview.wss?&uid=swg21165448

Mounting considerations

For root installations of DB2 products on UNIX operating systems, do not mount your file system with the nosetuid option.