Hardware and network architecture

Physical Hardware infrastructure

The hardware architecture or eCampus is based on the Vmware and Vsphere virtualization systems.

Within the Milan Fastweb server farm is a vmware cluster composed of 10 host, for a total of 168 core, 1,5TB of RAM memory and approximately 30TB of shared SAN storage.

Within the Città di castello (PG) server farm is a vmware cluster composed of 2 host, for a total of 24 core, 200GB of RAM memory and approximately 15TB of shared SAN storage. In addition, there is a IBM iSeries mainframe.

All the hardware is equipped with redundancy systems such as feeders, embedded fiber circuit boards for the connection with the storages and network cards for the connection with other devices.

We have activated maintenance contracts with the manifactures for all the devices, in order to guarantee immediate action in case of malfunction.

Logic Hardware Infrastructure

The Vmware Vsphere virtualization system allows the consolidation and optimization of the necessary hardware and guarantees the continuity of the services through highly reliable systems, in the case of hardware damage the application and the services concerned will automatically be reactivated on other cluster nodes.

Furthermore, the virtualization makes it possible to expand by its own means with the new hardware allowing minimum data migration time.

Backup/Data Restoration

The current hardware solution provides for a backup through the IBM Tivoli Storage Manager management software installed on a physical server.

The procedure provides for a backup on hard drives and a following copy and historization on tape through IBM TS3100 libraries.

Data Network Infrastructure

The currently used network infrastructure is based on MPLS (Multi Protocol Label Switching) based on optical fiber and vdsl allowing VPN connection of the offices in accordance with the necessary band and safety requirements. 

In every office, the internet connection is protected through a centralized FORTINET firewall which applies the web filtering policies and the application control on the basis of private authentication.

Plan for a Periodic System Upgrade

NUMBER OF STUDENTS
up to 25.000 up to 50.000 up to 75.000 up to 100.000 over 100.000
SYSTEM PROPERTIES
SERVER INFRASTRUCTURE greater than or equal to 100 core, Ram 1TB greater than or equal to 200 core, Ram 2TB greater than or equal to 300 core, Ram 3TB greater than or equal to 400 core, Ram 4TB greater than or equal to 500 core, Ram 5TB
STORAGE Storage Area Network Fiber Channel 10TB Storage Area Network Fiber Channel 20TB Storage Area Network Fiber Channel 30TB Storage Area Network Fiber Channel 40TB Storage Area Network Fiber Channel oltre 50TB
DATABASE Sql Server 30GB, Oracle 30GB, Mysql 30GB Sql Server 60GB, Oracle 60GB, Mysql 60GB Sql Server 90GB, Oracle 90GB, Mysql 90GB Sql Server 120GB, Oracle 120GB, Mysql 120GB Sql Server over 150GB, Oracle over 150GB, Mysql over 150GB
NETWORKING 150Mbps 300Mbps 450Mbps 600Mbps over 750Mbps
BACKUP Tape Library 30TB 60TB 90TB 120TB over 180TB
POWER SOURCE 4KW 6KW 9KW 12KW over 20KW
MONITORING SYSTEMS Monitoring Software eCampus CHM, vSphere Monitoring and Performance Monitoring Software eCampus CHM, vSphere Monitoring and Performance Monitoring Software eCampus CHM, vSphere Monitoring and Performance Monitoring Software eCampus CHM, vSphere Monitoring and Performance Monitoring Software eCampus CHM, vSphere Monitoring and Performance