DB2 10.5 for Linux, UNIX, and Windows

Preinstallation of DB2 pureScale Feature (AIX)

To prepare your environment for the installation of the DB2® pureScale® Feature in the supported AIX® environments, you must perform several tasks to be able to complete the installation process successfully. Use the plan you created as a map for completing these tasks.

Installation prerequisites for DB2 pureScale Feature (AIX)
Before you install a DB2 pureScale environment for the first time, ensure you have created your DB2 pureScale Feature installation plan. Your installation plan helps ensure that your system meets the prerequisites and that you have performed the preinstallation tasks.
GDPC infrastructure and GDPC-specific prerequisite conditions
Before setting up a geographically dispersed DB2 pureScale cluster (GDPC), a number of conditions must be met.
Configuring communication adapter ports and switches (AIX)
The topics in this section detail how to configure communication adapter ports and switches on supported AIX operating systems. The configuration process is dependent on your network.
Installing and setting up OpenSSH
This task describes how to obtain and setup Open Secure Shell (OpenSSH).
Setting up db2locssh
You can configure db2locssh so that you can install the DB2 pureScale feature without enabling remote root login and passwordless SSH.
Shared storage support for DB2 pureScale environments
Shared storage devices supported by IBM® DB2 pureScale Feature are divided into three categories. These categories group storage devices and multipath I/O driver pairs based on two storage features.
Configuring PVIDs for a DB2 pureScale instance (AIX)
The shared disk to be used by the DB2 pureScale instance must have the same physical volume identifier (PVID) configured on all hosts.
Creating required users for a DB2 pureScale Feature installation
A DB2 pureScale environment requires a user ID for the instance owner, a non-root user ID to use a secure shell (SSH) network protocol between hosts, and another to run fenced user-defined functions or procedures.
Preinstallation checklist for DB2 pureScale Feature (AIX)
Perform the following preinstallation steps and verify them on each host before installing the IBM DB2 pureScale Feature.
Checking installation prerequisites by using the db2prereqcheck command
You can use the db2prereqcheck command to check the software prerequisites of a specific DB2 version, generate a report file, and perform other tasks.
User-managed file system support for DB2 pureScale environments
Although a file systems that is managed by the DB2 product is recommended, you might want to use your existing shared file system.
Manually allowing the DB2 installer to take over a user-managed GPFS cluster
Use this task to pass the ownership of your user managed GPFS™ cluster to the IBM DB2 pureScale Feature.