User Manual

Part B: System Dimensioning
Recommendations for FEPs
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Restricted
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If the number of servers in a distributed system configuration is bigger than 5, the
use of SQL Server Standard edition is recommended.
Note that the minimum hardware requirements defined in section Hardware
Category Definitions [➙ 31] still apply with the following remarks:
● For supervising servers (hierarchical topology) or any server in a meshed
topology, 64 GB RAM are required.
● In virtual environments with lower clock frequencies in the processor, lower
performances can be expected, and overall system size limits are reduced
Hybrid topologies
Hybrid topologies have not been considered in the System Description and have
not been tested. However, feasibility and design of such topologies can be
consulted through Customer Support.
Segmented topologies
In segmented topologies, up to 3 systems can be connected in fully meshed
configuration within the same server machine. In this case the amount of RAM
(64GB) and physical cores (4) typically required for machines hosting one only
system, need to be multiplied by the number of systems. Example: A server with
3 systems in segmented topology would require 192GB RAM and 12 physical
cores.
2.5 Recommendations for FEPs
If system configuration requires distribution of field network connectivity, the
recommended hardware and software configuration for FEP is described below.
Front End Processor (FEP)
Description
Enhancement of connectivity capacity with
distributed field network drivers
Recommended hardware category
MS
Recommended software environment
Windows 10 Professional and Enterprise, 64-bit
Network requirements
Local network
Single subnet
100 Mbps upload/download
Latency less than 10 ms
Recommendation
Max 40 drivers per FEP. Total per system: 100
(see IT Environment Compatibility [➙ 42])
Max 5 FEP
2.6 Recommendations for Remote Clients
If system configuration requires remote client connectivity, the recommended
hardware and software configuration for the different types of clients is described
below: