Discrepancy on the hardware requirements for Foglight Management Server

Maybe I'm missing something, but I'm trying to calculate our hardware requirements for the FMS.

I've got to think the second example in the walk-through may not be for the Foglight Management Server alone.

From https://support.quest.com/technical-documents/foglight-for-sql-server-cartridge-/5.9.3.20/deployment-guide#TOPIC-1089189:

Number of Agents

<5

<50

<100

<200

<400

<600

<800

CPUs (2.4GHz)*

2 cores

4 cores

4 cores

4 cores

4 cores

6 cores

8 cores

RAM*

6GB

8GB

8GB

10GB

12GB

16GB

18GB

JVM Settings**

4096MB

4096MB

4096MB

6144MB

8192MB

10240MB

14336MB

Hard Drive Space

10GB

100GB

200GB

400GB

800GB

1200GB

1600GB

Table 1. Foglight Management Server with SQL PI configured

CPUs (2.4GHz)* — for a virtual machine the CPU allocation must be reserved. The reservation is expressed in MHz

RAM*- for a virtual machine the memory allocation must be reserved.

From https://www.quest.com/community/quest/performance-monitoring/b/performance-monitoring-blog/posts/foglight-for-databases-installation-requirements-and-walk-through:

Have a physical or virtual machine to host Foglight, meeting the follow hardware requirements based on the total number of SQL Server + Windows connections you’d like to monitor:

Monitored Connections     <5     <50     <100     <200

CPU cores (2.4GHz)         4      12       16       18
RAM                       12 GB   26 GB    34 GB    46 GB
Drive Space               22 GB  205 GB    410 GB  820 GB
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  • Hi Jason,

    That blog post uses a chart that totals the CPUs, memory, and space requirements for the three charts (FMS, FglAM, and SQL PI repository) in the deployment guide under the "SQL PI configured" section. It seems to be intended for an "All in one" installation on one server that are usually installed with a "Foglight for Databases" installer which includes a FMS, FglAM, and DB cartridges together in one package.

    These "All in One" systems are only supported up to 20 database agents on a single server. Recent deployment guides specify that architectures monitoring more than 20 database agents should have the FMS, Agent Manager (FglAM), and SQL PI repository installed on separate servers.

    John

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