Package requirements for Red Hat

Directory

Package name

Description

 

 

 

/System Environment/

rsh-server

This package contains a set of programs

Daemons

 

which allow users to run commands on

 

 

a remote computer. Required for

 

 

partitioned database environments. This

 

 

package is not required if you configure

 

 

DB2 to use ssh.

 

 

 

/System Environment/

nfs-utils

Network File System support package.

Daemons

 

It allows access to local files from

 

 

remote computers.

 

 

 

Software considerations:

vOne of the following browsers is required to view online help and to run First Steps (db2fs):

Mozilla 1.4 and up

Firefox 1.0 and up

Netscape 7.0 and up

vAn X Window System software capable of rendering a graphical user interface is required if you want to use the DB2 Setup wizard to install DB2 or if you want to use any DB2 graphical tools. (Available only on Linux for x86 and Linux on AMD 64/EM64T.)

DB2 product installation on NFS (Network File System):

The installation of DB2 products on NFS (Network File System) is not recommended. Running DB2 products on NFS (for example, NFS mounting /opt/IBM/db2/V9.1 and then running off code that was physically installed on a remote system) requires several manual setup steps. There are also a number of potential issues with setting up NFS for DB2. These include possible problems that involve:

vPerformance (impacted by network performance)

vAvailability (you are allowing a single point of failure)

vLicensing (there is no checking done across machines)

vDiagnosing NFS errors can be difficult

As mentioned, the setup for NFS will require several manual actions including:

vEnsuring that the mount point preserve the install path

vPermission must be controlled (for example, write permission should not be given to the mounting machine)

vDB2 registries have to be set up manually and maintained across all mounting machines

vThe list installed DB2 products and features command (db2ls) must be set up and maintained properly if you need to detect DB2 products and features

vMore care is required when updating your DB2 product environment

vMore steps are required when cleaning up on the exporting machine and the mounting machine

For detailed instructions, look for the “Setting Up DB2 on NFS Mounted File System” white paper which will be available soon after DB2 Version 9 is made available.

Chapter 1. Installation prerequisites 13

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IBM VERSION 9 manual Software considerations, DB2 product installation on NFS Network File System

VERSION 9 specifications

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