4 Installing Oracle Database Gateway for Informix

This chapter provides information about the hardware and software requirements and the installation procedure for Oracle Database Gateway for Informix.

To install the gateway, follow these steps:

Ensure that the system meets all of the hardware and software requirements specified in "System Requirements for Oracle Database Gateway for Informix".
Run the Oracle Universal Installer.

See "Step Through the Oracle Universal Installer" for more information about running the Oracle Universal Installer

Oracle Universal Installer is a menu-driven utility that guides you through the installation of the gateway by prompting you with action items. The action items and the sequence in which they appear depend on your platform.

See Table 4-3 for a description of the installation procedure of Oracle Database Gateway for Informix.

4.1 System Requirements for Oracle Database Gateway for Informix

This section provides information about the hardware and software requirements for the gateway. It contains the following sections:

"Hardware Requirements"
"Software Requirements"

4.1.1 Hardware Requirements

Table 4-1 lists the minimum hardware requirements for Oracle Database Gateway for Informix.

Table 4-1 Hardware requirements for Oracle Database Gateway for Informix

Hardware Items	Required for AIX-Based System	Required for HP-UX Itanium	Required for Solaris Operating System (SPARC)	Required for Linux x86	Required for Linux x86 64 bit
Temporary Disk Space	400 MB	400 MB	400 MB	400 MB	400 MB
Disk Space	1.5 GB	1.5 GB	750 MB	750 MB	750 MB
Physical Memory*	512 MB	512 MB	512 MB	512 MB	512 MB
Swap Space	1 GB	1 GB	1 GB	1 GB	1 GB
Processor	IBM RS/6000 AIX-Based System Processor	HP Itanium processor for hp-ux 11	Sun Solaris Operating System (SPARC) Processor	x86	x86_64

* The minimum swap space is 1 GB (or twice the size of RAM). On systems with 2 GB or more of RAM, the swap space can be between one and two times the size of RAM. On AIX systems with 1 GB or more of memory, do not increase the swap space more than 2 GB.

4.1.1.1 Checking the Hardware Requirements

To ensure that the system meets the minimum requirements, follow these steps:

To determine the physical RAM size, enter one of the following commands:

Operating System	Command
AIX	# `/usr/sbin/lsattr -E -l sys0 -a realmem`
HP-UX Itanium	`# /usr/contrib/bin/machinfo \| grep -i Memory`
Solaris (SPARC)	# /`usr/sbin/prtconf \| grep "Memory size"`
Linux x86	`# grep MemTotal /proc/meminfo`
Linux x86 64 bit	`# grep MemTotal /proc/meminfo`

If the size of the physical RAM installed in the system is less than the required size, you must install more memory before continuing.

To determine the size of the configured swap space, enter one of the following commands:

Operating System	Command
AIX	`# /usr/sbin/lsps -a`
HP-UX Itanium	`# /usr/sbin/swapinfo -a`
Solaris (SPARC)	`# /usr/sbin/swap -s`
Linux x86	`# grep SwapTotal /proc/meminfo`
Linux x86 64 bit	`# grep SwapTotal /proc/meminfo`

If necessary, see your operating system documentation for information about how to configure additional swap space.

To determine the amount of disk space available in the /tmp directory enter the following commands:

Operating System Command

AIX # df -k /tmp

HP-UX Itanium # bdf /tmp

Solaris (SPARC) # df -k /tmp

Linux x86 # df -k /tmp

Linux x86 64 bit # df -k /tmp
To determine the amount of disk space available on the system enter the following commands:

Operating System Command

AIX # df -k

HP-UX Itanium # bdf

Solaris (SPARC) # df -k

Linux x86 # df -k

Linux x86 64 bit # df -k

Operating System	Command
AIX	`# df -k /tmp`
HP-UX Itanium	`# bdf /tmp`
Solaris (SPARC)	`# df -k /tmp`
Linux x86	`# df -k /tmp`
Linux x86 64 bit	`# df -k /tmp`

Operating System	Command
AIX	`# df -k`
HP-UX Itanium	`# bdf`
Solaris (SPARC)	`# df -k`
Linux x86	`# df -k`
Linux x86 64 bit	`# df -k`

4.1.2 Software Requirements

The following section describes the minimum software requirements for Oracle Database Gateway for Informix.

4.1.2.1 Operating System

Table 4-2 lists the minimum operating system version required for Oracle Database Gateway for Informix. If your operating system is lower than the minimum requirements, upgrade your operating system to meet the specified levels.

Table 4-2 Operating Systems version for Oracle Database Gateway for Informix

Operating System	Version
AIX	AIX 5L version 5.3 TL9 or higher, AIX 6.1
HP-UX Itanium	HP-UX 11iv3 (11.31)
Solaris (SPARC)	Solaris 10, (Update 6 or later)
Linux x86 Red Hat	One of the following operating system versions: Red Hat Enterprise Linux 4.0, (Update 7 or later) Red Hat Enterprise Linux 5.0
Linux x86 64 bit Red Hat	One of the following operating system versions: Red Hat Enterprise Linux 4.0, (Update 7 or later) Red Hat Enterprise Linux 5.0
Oracle Enterprise Linux x86	One of the following operating system versions: Oracle Enterprise Linux 4.0, (Update 7 or later) Oracle Enterprise Linux 5.0
Oracle Enterprise Linux x86 64 bit	One of the following operating system versions: Oracle Enterprise Linux 4.0, (Update 7 or later) Oracle Enterprise Linux 5.0
Asianux Linux 32 bit	One of the following operating system versions: Asianux Linux 2.0 Asianux Linux 3.0
Asianux Linux 64 bit	One of the following operating system versions: Asianux Linux 2.0 Asianux Linux 3.0
SUSE Linux Enterprise Server 32 bit	SUSE Linux Enterprise Server 10.0 SUSE Linux Enterprise Server 11.0
SUSE Linux Enterprise Server 64 bit	SUSE Linux Enterprise Server 10.0 SUSE Linux Enterprise Server 11.0

4.1.2.2 Checking the Software Requirements

To ensure that the system meets the minimum requirements, follow these steps:

To determine which version of AIX is installed, enter the following command:
```
# oslevel -r
```
To determine which version of HP-UX Itanium is installed, enter the following command:
```
# uname -a
```
To determine which version of Solaris Operating System (SPARC) is installed, enter the following command:
```
# uname -r
```
To determine which distribution and version of Linux x86 is installed, enter the following command:
```
# cat /etc/issue
```
To determine which distribution and version of Linux x86 64 bit is installed, enter the following command:
```
# cat /proc/version
```

4.1.2.3 Certified Configuration

The gateway supports Informix Dynamic Server. For the latest versions supported refer to the OTN Web site:

http://www.oracle.com/technology/products/gateways/pdf/certmatrix10g.pdf

4.2 Step Through the Oracle Universal Installer

Table 4-3 describes the installation procedure for Oracle Database Gateway for Informix.

Table 4-3 The Oracle Universal Installer: Steps for Installing the Gateway

Screen	Response
Oracle Universal Installer: Welcome	Click Next.
Oracle Universal Installer: File Locations	The Source section of the screen is where you specify the source location that the Oracle Universal Installer must use to install the Oracle Database Gateway for Informix. You need not edit the file specification in the Path field. The default setting for this field points to the installer file on your Oracle Database Gateway installation media. The Path field in the Destination section of the File Locations screen is where you specify the destination for your installation. You need not edit the path specification in the Path field. The default setting for this field points to `ORACLE_HOME`. After you set the fields in the File Locations screen as necessary, click Next to continue. After loading the necessary information from the installation media, the Oracle Universal Installer displays the Available Products screen.
Oracle Universal Installer: Available Product Components	a. Select Oracle Database Gateway for Informix 11.2. b. Click Next.
Oracle Database Gateway for Informix	Informix Database Server Host Name - Specify the host name or the IP address of the machine hosting the Informix database server. This release supports IPv6 format. Informix Database Server Port number - Specify the port number of the Informix database server Informix Server Name - Specify the Informix server name Informix Database Name - Specify the Informix database name Click Next to continue.
Oracle Universal Installer: Summary	The Installation Summary screen enables you to review a tree list of options and components for this installation. Click Install to start installation.
Oracle Net Configuration Assistant: Welcome	Click Cancel
Oracle Net Configuration Assistant:	Click Yes
Oracle Universal Installer: Configuration Tools	Click Exit
Exit	The final screen of the Oracle Universal Installer is the End of Installation screen. Click Exit to exit the installer.