Troubleshooting DB2 pureScale Feature

How to diagnose a problem with the DB2 pureScale Feature
When you encounter a problem, it is important to define and isolate the problem accurately before you attempt to resolve it. Use the diagnostic steps in this topic to guide yourself through the problem-determination process with the troubleshooting tools that are included with the DB2 pureScale Feature. In many cases, you might be able to resolve the problem yourself.

Understanding the DB2 pureScale Feature resource model
The new DB2 pureScale Feature resource model represents cluster caching facilities and the shared cluster file system.

Understanding how the DB2 pureScale Feature automatically handles failure
When a failure occurs in the DB2 pureScale instance, DB2 cluster services automatically attempts to restart the failed resources. When and where the restart occurs depends on different factors, such as the type of resource that failed and the point in the resource life cycle at which the failure occurred. If a software or hardware failure on a host causes a DB2 member to fail, DB2 cluster services automatically restarts the member.

uDAPL connectivity in DB2 pureScale environments
In a DB2 pureScale environment, the RDMA is supported through the User Direct Access Programming Library (uDAPL) interface.

Manual trace and log file collection
Trace and log files contain information that help troubleshoot problems. If you cannot collect diagnostic data for the IBM DB2 pureScale Feature by using the db2support command, you can collect trace and log information manually.

Installation, instance creation and rollback
The DB2 installer installs the DB2 binaries, creates the instance across all hosts (setting up the GPFS™ cluster and the RSCT peer domain on all DB2 members and CFs), and optionally creates users and groups.

Frequently asked questions about response file installation problems with the DB2 pureScale Feature
Use this topic to help you resolve response file problems during installation.

Post-installation
This section contains information that will help you understand, isolate, and resolve problems that you might encounter after the installation of the IBM DB2 pureScale Feature.

Host or member issues
When you encounter a problem, it is important to diagnose and then troubleshoot the problem. Details are given on how to identify alerts or errors and to diagnose and troubleshoot symptoms that might occur in a DB2 pureScale environment.

Uninstallation
This section contains information that will help you understand and resolve problems that you might encounter while uninstalling the IBM DB2 pureScale Feature.

Troubleshooting the DB2 pureScale Feature