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General IBM Netezza Analytics Topics

IMPORTANT – Read First Before Installing This Release

Database Compatibility

This release of the IBM Netezza Analytics (referred to as Netezza Analytics in the remain-

der of this document) supports Netezza systems that run release 6.0.5P5 or later. If your

Netezza system is using an earlier release, you must upgrade it before using this release

of Netezza Analytics.

Compatibility With Prior Releases

Release 2.0 introduced some changes to algorithms that are not backward compatible or

that change the behavior of the algorithm. If you have applications that call Netezza Analyt-

ics algorithms, you may need to change the algorithm calls in cases where the algorithm's

parameters have changed, the default behavior changed, or the algorithm name changed.

For more information on these backward compatibility issues see the following sections:

 Call Interface Changes to Analytic Functions

 FPGROWTH Algorithms Renamed and Modified

 Changes to the KMEANS Algorithm

 Changes to nzMatrix

Compatibility With Revolution R Enterprise for IBM Netezza

This release of Netezza Analytics requires Revolution R Enterprise for IBM Netezza re-

lease 5.0.3 or greater.

Appliance Workload Impact

Netezza Analytics functionality is broad and powerful, and as such, utilizes various re-

sources on the appliance. In some instances the resources required to perform certain an-

alytic operations could be substantial (for example, large matrix calculations). Many safe-

guards are in place to ensure continued performance of the overall appliance, but it should

be noted that when performing complex operations there could be an impact on other “nor-

mal” systems-related activity. If you experience performance differences on your “normal”

systems, take note of what, if any, analytic operations are simultaneously being performed.

In the future you can run these operations at a time that does not impact critical operations

or you can adjust settings to run the analytic operations with a lower priority.

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