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Package requirements for Red Hat
Directory Package name Description
/System Environment/
Daemons
rsh-server This package contains a set of programs
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/
Daemons
nfs-utils Network File System support package.
It allows access to local files from
remote computers.
Software considerations:
v One 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
v
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 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:
v Performance (impacted by network performance)
v Availability (you are allowing a single point of failure)
v Licensing (there is no checking done across machines)
v Diagnosing NFS errors can be difficult
As mentioned, the setup for NFS will require several manual actions including:
v Ensuring that the mount point preserve the install path
v Permission must be controlled (for example, write permission should not be
given to the mounting machine)
v DB2 registries have to be set up manually and maintained across all mounting
machines
v The list installed DB2 products and features command (db2ls) must be set up
and maintained properly if you need to detect DB2 products and features
v More care is required when updating your DB2 product environment
v More 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