User guide

Chapter 1. Alcatel-Lucent 5620 SAM LogToFile 2.3.0.0

Technology Pack overview

The LogToFile feature is added to the SAM server to allow downstream systems to

retrieve metric data as it arrives and without any filtering. The data is fed to the

downstream systems in a streaming fashion. The downstream system must do the

filtering with caution and as necessary.

In the earlier releases of Alcatel-Lucent 5620 SAM Technology Pack, FindToFile is

used to obtain the metric data from SAM Server for any time period you want.

Though this feature is convenient, FindToFile feature adds extra computational

burden to the SAM Server. The new LogToFile feature relieves the SAM server of

the burden of querying and filtering for the subset of data that the downstream

system needs.

UBA structure

An array of UBAs is divided into UBAs for accounting and performance. There can

be multiple UBAs. However, the UBAs must be in a set of accounting and

performance. These UBAs processes the inventory and metric data that is

presented to them by IBM InfoSphere Information Server DataStage.

The metrics (XML files) and inventory (XML files/JMS messages) from the SAM

server are parsed by DataStage and converted to CSV files for the UBAs. DataStage

produces one file per UBA per period.

The record types in the incoming CSV files are heterogeneous. The inventory data

is added to the CSV file only under the following conditions:

v When there is a full dump.

v When a JMS inventory message is received.

Dynamic models

In the previous versions of Alcatel-Lucent 5620 SAM Technology Pack, the SAMIF

and BLB communicate directly with SAM server. SAMIF acquires and processes

inventory via bulk transfer (full dump) and JMS messages (changes). BLB issues

periodic SOAP FindToFile requests for metric data and acquires that data over

SFTP and makes it available to the UBAs. SAMIF communicated via JMS, SOAP,

and SFTP to acquire and process inventory. The BLB communicated via SOAP and

SFTP to export and acquire bulk metric data files. One UBA processes performance

metrics and another UBA processes accounting metrics. This design does not

accommodate more than two UBAs. In the current design SAMIF and BLB are

removed and IBM InfoSphere DataStage is used to interface with the SAM server

by using JMS, SOAP and SFTP. You can have an array of UBAs that are subdivided

into UBAs for accounting metrics and UBAs for polled metrics.

Currently, in Alcatel-Lucent 5620 SAM LogToFile 2.3.0.0 Technology Pack,

DataStage interfaces with the SAM server and provides metric and inventory data

to the UBAs. Rather than having a separate component to process inventory for the

entire system, inventory is processed inline by the UBAs. DataStage performs the

following functions:

v Acquires and processes inventory and metrics from SAM in XML format.