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| Component | Description | Hardware requirements | Operating system/ Software requirements | Instances |
|---|---|---|---|---|
| Operator Client (Gui) | The Delft-FEWS client used by end-users. | client side, normal pc | Windows Vista / 7 / 8 / 10, Server 2003 / 2008 / 2012(R2) Linux RedHat Enterprise, CentOS (6.x 64 bit, 7.x 64 bit) / SLES 11.x | As many as there are clients |
ConfigManager
| Allows super user tocontrol Control and distribute configuration via the Master Controller database. | client side, normal pc | Windows Vista / 7 / 8 / 10, Server 2003 / 2008 / 2012(R2) Linux RedHat Enterprise, CentOS (6.x 64 bit, 7.x 64 bit) / SLES 11.x | As many as there are application managers |
| Forecasting Shell Server | Executes forecast models and stores the results in the central database. | Minimum 2 GB RAM and 1 one CPU core per FSS Forecasting Shell Server instance. CPU typically Intel XEON E5606 2.33 GHz or equivalent. (Always reserve 1 CPU core for the OS). | Windows Vista / 7 / 8 / 10, Server 2003 / 2008 / 2012(R2) Linux RedHat Enterprise, CentOS (6.x 64 bit, 7.x 64 bit) / SLES 11.x Contains modelling software (incl. licenses), OS usually dependent on 3rd party modules and modelling software | Recommended minimum 2, more depends on computational load |
| Master Controller Server | Dispatches tasks to the Forecasting Shell Servers. Maintenance of central database. Synchronisation between master-controllers. Send system alerts.
| Minimum 1 GB RAM per MC instance. CPU typically Intel XEON 2.33 GHz or equivalent. | Windows Vista / 7 / 8 / 10, Server 2003 / 2008 / 2012(R2) Linux RedHat Enterprise, CentOS (6.x 64 bit, 7.x 64 bit) / SLES 11.x Other Unix-like operating systems possible (e.g. HP-UX, Solaris), as long as there is a JDK of the correct version available for the OS. JBoss 4 / 5 / ActiveMQ. | 1 or 2 |
| Central Database | Central data repository | See Database vendor requirements + 8 GB RAM per DB server including 1 MC DB instance and. CPU typically Intel XEON E5606 2.33 GHz or equivalent. Add 1 GB RAM per extra MC DB instance. | Oracle 9 / 10 / 11 / 12 PostgreSQL 8.2 / 8.3 / 8.4 / 9.2 / 9.3 / 9.4, MS SQLServer 2000 / 2005 / 2008 / 2008R2 / 2012 / 2014. The database instance(s) can be a hosted on an existing database server or cluster. | 1 instance for each Master controller |
| Admin Interface | Super-user monitoring, system control and task scheduling | Minimum 1 GB RAM | Apache Tomcat 6 / 7 | 1 |
| Archive Server | Stores forecast data, performance indicator data and configurations on a longer time scale than in the central FEWS system. | Ample storage space for Archive files | Apache Tomcat 6 / . Separate database instance with same requirements as Central Database for Master Controller. | 1 |
| "NFFS/FEWS" Web Server (optional) | For disseminating forecast data and data from other sources | Typically 1 GB RAM per server instance and CPU Intel Xeon 2.33 GHz or equivalent. | Weblogic 11g with an Oracle Database. JBoss as Application Server and Databases PostgreSQL 8.4 and MS SQL Server 2000/2005 supported | 1 or 2 |
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Typically in a dual master-controller setup every master-controller has its own machine so that maintenance can take place with a minimum of without offline time.