Foglight for DB2 5.7.5.1 - Foglight for DB2 LUW 5.7.5.1 Hardware Sizing Guide

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Foglight Management Server Agent Manager Deployment Use Cases

Introduction to this Guide

Welcome to the Foglight for DB2 LUW Hardware Sizing Guide. This guide is intended to assist with determining the optimal hardware requirements and product configurations to ensure the best user experience possible.

DB2 Agents — System Requirements

Use the following to determine the amount of resources required to monitor your DB2 instances.

Allocate resource for:

•

Foglight Management Server

•

Agent Manager

The preceding monitoring elements can be either distributed over different machines (preferable in large environments) or centralized. For more information, see Deployment Use Cases.

Reserve the following on a virtual machine (VM):

•

Memory — the full amount of the required machine memory

•

CPU — the amount of CPU MHz

Foglight Management Server

Table 1. Foglight Management Server
Machine			Configuration
# of DB2 Agents	Memory	CPUs (2.4GHz)	Foglight JVM settings (MB)
1 to 100	8GB	4 cores	Xms\|Xmx=4096
101 to 200	10GB	4 cores	Xms\|Xmx=6144
201 to 400	12GB	4 cores	Xms\|Xmx=8192

Note the following:

•

For more than 100 agents an external repository is recommended.

•

The preceding sizing considers the equivalent Infrastructure agents.

•

To change the memory settings, edit the Foglight Management Server JVM settings in the server.config file located under <Foglight installation directory>\config\.

•

The maximum disk space measured is 2GB per DB2 agent.

Agent Manager

We recommend that you increase the max-disk-space="102400" for following settings: upstream, upstream-verified, downstream.

Network throughput measured from the Agent Manager to the Monitored host average is 0.36 MBps per DB2 agent.

Table 2. DB2 Agents


Machine			Configuration
# of DB2 Agents	Memory (GB)	CPUs (2.4GHz)	Agent Manager JVM settings (MB)
1 to 5	1GB	1 core	Xms\|Xmx=256
6 to 10	2GB	1 core	Xms\|Xmx=500
11 to 100	4GB	2 cores	Xms\|Xmx=2048
101 to 200	6GB	4 cores	Xms\|Xmx=4096
201 to 300	8GB	6 cores	Xms\|Xmx=6144
301 to 400	10GB	8 cores	Xms\|Xmx=8192