03-Mentor Server Architecture

Mentor Server Mentor Server Optimization Privileged and confidential. The information contained in this material is privileged and confidential, and is intended only for the use of the individual to whom it is addressed and others who have been specifically authorized to receive it If you are not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this material is strictly prohibited If you have received this material in error, please destroy it immediately Lesson Objectives By the end of this lesson you will be able to describe the main Mentor Server components and data flow Mentor Server Optimization Main Topics • Introduce the Mentor server and roles • Describe the main building blocks • Review the enterprise server architecture • Describe the data process flow • Discuss the client-server interface Mentor Server Optimization Mentor Server The Mentor server automates routine tasks, relieving the RF engineer of manual tasks (such as network data collection, network modeling, analysis, and optimization etc.) • By automating these processes, the client significantly reduces the process effort, and shortens the optimization cycles, leaving the engineer with more time for analysis and decision making • The enterprise configuration allows the Mentor server to manage medium and large networks under a single centralized system • The enhanced load-balancing capability allows efficient usage of system machines, and redundancy in cases of component failure Mentor Server Optimization Mentor Server – Roles • Routine Task Automation • Physical network configuration data collection • Log, KPI, and mobile-measurement collection • Collected data processing • Data model creation • Template-based scheduling of analysis and optimization tasks • Security and Management • Network element and cluster definitions • User management Mentor Server Optimization Clients and Applications • Desktop Clients • Forte – RF optimization for GSM/GPRS/EDGE networks • Mentor – GSM/UMTS/HSDPA/LTE/CDMA/EVDO network analysis and optimization • Mentor Server Admin – server management console for automated data collection and processing, and security settings • Web Applications • Insight – data-collection analytics tool Mentor Server Optimization Main Server Building Blocks The following are the main Mentor Server building blocks: • Processing Servers • Front-End (FE) Server (Windows) – manages connected client requests, and controls and operates other agents • Agents (Windows) – perform raw data collection, network model creation, and calculation tasks • Data Servers • Oracle Database – stores server configurations • Call Database (run by a Linux machine) – stores the calls in a generic structure, created based on the collected raw data Mentor Server Optimization Server Deployment The Mentor server can be deployed in two main methods, according to the project requirements: • Simple Server – central server handling all server-related tasks • Includes a local agent, which is usually used for running calculation tasks (analysis and optimization), and shares the same file storage as the main FE server • Enterprise Server – distributed system that includes one or more remote agents, which are installed near the data devices and that handle the collection and model creation • Each remote agent has its own local file storage • Scalable, supports large networks Mentor Server Optimization Enterprise Server – Front-End Clustering • The server supports FE server-clustering functionality, where the system allocates a serving host from its group of existing FE servers • Only a single FE, the Master Server, manages the agents If it crashes, another FE server takes its place • Task state (queues containing the current status of the tasks) is saved in a shared memory for all FEs, using Terracotta, enabling any FE to be the master at any time • Benefits • Provides load-balancing and resilience in the system • Provides high-availability to support user requests and agent management Mentor Server Optimization Enterprise Server – Agents Group • Each network element (usually RNC/BSC) collection and modeling task runs on a single defined agent • The raw data is saved on the agent’s storage (grouped according to date and hours), and is later used for the model run • Agents Group – several agents can use the same storage, which means that a network element can run on any one of them • Calculations can run on any agent Mentor Server Optimization 10 Enterprise Server Architecture FE Servers & Agents Agents Data Devices Agents Data Devices Mentor Desktop Client Forte Desktop Client Server Configuration File System Cellular Data Insight Web Application Call DB Server Admin Console Mentor Server Optimization 11 Logical Entities – NEs and Clusters • A Network Element (NE) is the smallest building block of a network defined in the server (e.g BSC, RNC) • It contains configuration data (coordinates, antenna heights, carrier definitions, etc.) • A Cluster is a set of one or more NEs, and represents the view of the engineer user • A NE can be contained in multiple clusters • Every user is permitted to view / edit one or more clusters • Each recurring calculation defined in the server is related to a specific cluster Mentor Server Optimization 12 High-Level Process Flow • Data Collection and Processing • Logs, KPIs, and topology files for every network element are periodically collected from the data devices by the agents • The agents process and parse the collected data into a generic and unified format • For every NE, the agents periodically generate and save network models in daily / NE resolution • Call Database • The generic and unified format calls (txt files) are loaded into the Call DB by a daemon process using SQL loader Mentor Server Optimization 13 High-Level Process Flow (cont.) • Calculations • Engineers can schedule recurring analysis, APD, and optimization calculations to run on the server (through the Mentor client or the Admin console) Mentor Server Optimization 14 Data Processing Workflow Log & KPI Collection Log Processing NE Modeling Engineering Tasks Physical Collection Call DB Mentor Server Optimization 15 Client-Server Interface • Data Import • Mentor users download the network configuration and model • Optionally, to support call-related features (e.g virtual drive tests) they can also import call data from the call database • Configuration-Change Updates • Manual network-configuration changes made by engineers in the Mentor client (new sites, missing data) are updated to a specific cluster in the server (actual changes are delegated to the NEs) • Scheduled Calculation Tasks • Engineers can schedule recurring analysis and optimization tasks to run on the server Mentor Server Optimization 16 Client-Server Interface – Import Workflow Mentor Client Server User requests cluster data for several days Data is merged from NE/Daily level to Cluster/Period level Download via FTP/http Import locally Mentor Server Optimization 17 Client-Server Interface – Submit Workflow Mentor Client Server User performs changes in the local environment User clicks “Submit” Calculates differences User accepts/rejects Submits changes Mentor Server Optimization 18 Client-Server Interface (cont.) • Configuration Sync • When connected to the server, engineers receive pop-up messages with updates of the configuration of their cluster: • New topology file was collected, with changes • New changes were submitted manually by another user • Notifications • Event-based notification messages are sent to users or by email: • Scheduled optimization task ends • Collection task fails • Etc Mentor Server Optimization 19 Client-Server Interface – Sync Workflow Mentor Client Server Client requests differences (in the background) Calculates differences User accepts/rejects Apply changes on local environment Mentor Server Optimization 20 Lesson Summary – Q&A • What are the main components comprising the enterprise server? • Describe the data collection and processing flow Mentor Server Optimization 21 ... Mentor Server components and data flow Mentor Server Optimization Main Topics • Introduce the Mentor server and roles • Describe the main building blocks • Review the enterprise server architecture. .. Server Optimization Server Deployment The Mentor server can be deployed in two main methods, according to the project requirements: • Simple Server – central server handling all server- related tasks... any agent Mentor Server Optimization 10 Enterprise Server Architecture FE Servers & Agents Agents Data Devices Agents Data Devices Mentor Desktop Client Forte Desktop Client Server Configuration