The IBM® DB2® pureScale® Feature greatly
simplifies the deployment of an inherently complex distributed database
environment. All software components are installed and configured
for you from a single host.
A single invocation of the wizard from the installation-initiating
host installs all of the components of the
DB2 pureScale Feature across
all hosts that you specify as part of the
DB2 pureScale environment.
All software components, including the following ones, are integrated
tightly into the
DB2 pureScale Feature:
- DB2 members
- The cluster
caching facilities
- DB2 cluster
services instance
management software, which is based on IBM Tivoli® System Automation for
Multiplatforms
- The cluster file system, which is based on GPFS™
The DB2 Information Center
provides more information about the underlying
DB2 pureScale components,
but you do not need to be closely familiar with them to deploy the
feature. What is important is that you meet the installation prerequisites
before running the DB2 Setup
wizard.
Figure 1. Installation of the DB2 pureScale Feature from
the installation-initiating host (1)
across all hosts (1 to 6) that will be part of the DB2 pureScale environment.
The installation process automatically creates the DB2 instance and configures all
of the software components according to tested best practices; no
additional user scripting or configuration is required. The first
time that you start the instance, all benefits of the DB2 pureScale Feature are
available.
The fix pack installation process for the DB2 pureScale Feature follows
the same well-conceived paradigm of simplicity: Fix packs include
all required updates for all of the components that are integrated
into the feature, so multiple software installations and upgrades
are not necessary. The upgrade process does not to affect database
availability.