DB2 Version 10.1 for Linux, UNIX, and Windows

Installation requirements for DB2 servers and IBM data server clients (HP-UX)

Before you install DB2® database products on HP-UX operating systems, ensure that the system you choose meets the necessary operating system, hardware, software, and communications requirements. The db2prereqcheck command checks whether your system meets the prerequisites for the installation.

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.

To install a DB2 product on an HP-UX operating system, the following operating system, hardware, and communications requirements must be met:

Note: A 64-bit HP-UX operating system is required to support DB2 products.

Table 1. HP-UX installation requirements
Operating System	Hardware
DB2 products are supported on: HP-UX 11iv3 (11.31) with: PHSS_37202 PHKL_41481 PHKL_42035 PHKL_42335 PHKL_41588 PHSS_41496	Itanium based HP Integrity Series Systems Any hardware that is explicitly compatible and fully capable of running the specified operating system, all the corresponding supporting software, and any associated applications unmodified.

Kernel configuration considerations

A system restart is required if you update the kernel configuration parameters. The kernel configuration parameters are set in /etc/system. Depending on the values of your kernel configuration parameters, modify some of them before you install the client or DB2 server products. If the kernel parameter being modified is not listed as dynamic, a system reboot is required to make the changes to /etc/system take effect.

Software considerations

libpam.so.0 (32-bit) is required for DB2 database servers to run 32-bit non-SQL routines.
(Clients only) If you plan to use Kerberos authentication, your DB2 applications must be 64-bit.
(Client and server) To use Kerberos authentication, install the HP krb5 Kerberos support via the Kerberos packages on the operating system.
One of the following browsers is required to view online help and to run First Steps (db2fs):
- Firefox 3.0 and later
- Google Chrome
- Safari 4.0
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.
For details regarding known HP-UX issues, see www.ibm.com/support/docview.wss?uid=swg21257602

Note: DB2 products installed on the HP-UX operating system support long host names. The length has been extended to 255 bytes, in any combination of characters or digits.

To enable long host name support, complete the following tasks:

Turn on the kernel tunable parameter expanded_node_host_name.
```
 Kctune expanded_node_host_name=1
```
Compile applications requiring long host name support with the -D_HPUX_API_LEVEL=20040821 option.

Mounting considerations

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