IBM 4.3-X Output Phase, •Output Phase, Loading Phase, •Loading Phase, Building Phase, •Building Phase, Processing Phase, •Processing Phase

Chapter 1: Introduction

CME Operation

The CME is designed to work with data that is gathered over the space of one hour. Within that hour, there are several distinct phases that characterize the operation of the CME:

•Loading Phase•Building Phase•Processing Phase•Output PhaseLoading Phase

During the beginning of each hour, the CME creates a new network configuration model based on the inventory structure that exists in the database at that time. This model is used as a snapshot of the network environment and serves as the basis for all metric processing for the entire duration of the hour. At the end of the hour, the CME polls the database for any changes that have been made to the inventory and creates a new network configuration model for the next hour.

As the CME reloads its configuration hourly, any metrics produced by sub-elements following the last polling period are rejected by the CME until the beginning of the next hour.

Building Phase

Once the current configuration model has been built, the CME creates a table of sub-elements and metrics that are expected for the current hour. The CME uses the RIDs and MIDs to build the table and determine which metrics should be arriving from the collectors. The table also specifies how resources are related, and determines if there are any CME formulas that must be applied to a sub-element’s metrics once the data is gathered.

Processing Phase

Whenever new data arrives at the CME, it is evaluated and stored in the appropriate table location, along with any Resource Aggregation information. Once the input and processing dependencies for a metric in the table have been met, the CME processes the metrics and stores the data until the end of the hour.

Output Phase

At the end of the current hour, the CME outputs everything in memory to the Hourly and Daily Loaders. The data sent to the database loaders includes the sorted data for the current hour, and resource and group aggregations for each of the processing periods up to the current time. The Hourly Loader computes group and resource aggregations, while the Daily Loader creates metric statistics and inserts the data into the database.

How is the Data Reported?

The data collected, processed, and stored in the database by Netcool/Proviso is organized and output for customers using reporter sets that are designed by developers and Professional Services personnel for a specific Technology Pack.

Netcool/Proviso Adva Optical Metro Ethernet 2.1.1.0 Technology Pack User’s Guide, Version 4.3-X 3