Among the main requirements there is safety: from the internal side, taking all precautions so that access to the premises is regulated with extreme care and allowed only to authorized persons, ensuring the continuity of the power supply for all needs through uninterruptible power supplies and cooling machines with air conditioning systems. As for security from the outside, it must be ensured that the area in which the Data Center is created is not at hydrogeological risk, and that the structure of the building has maximum resistance to all types of stress and stress.
The classification of the system reliability of the Data Centers has four levels: starting from Tier I, the basic level, where the black outs can reach 30 hours per year, for a guaranteed operational continuity of 99.671%. The Tier I Data Center is characterized by not having redundancies in the electricity and cooling networks, and by having to be “switched off” to make maintenance work possible. Performance and reliability levels progressively increase up to Tier IV, which guarantees operational continuity at 99.995%, with stops in a year less than half an hour, and which makes maintenance activities possible without affecting the overall performance of the structure. Power and cooling are also completely redundant and generators are available,
Data Centers in Italy
The offer of Data Centers in Italy is quite wide and above all rapidly growing. According to the surveys of the datacentermap.com site , in the section that photographs the situation of the Data Centers available for colocation, Italy today has 69 facilities, out of a global total of 4,324 distributed in 122 countries. Just to give an idea of the growth rate, just think that the Data Centers in Italy there were 55, therefore 14 less than today, in 2016. The geographical distribution is fairly homogeneous, and affects the cities of Ancona, Arezzo (3), Ascoli Piceno, Bari, Bergamo (2), Bologna (3), Brescia, Castel San Pietro Terme, Catania (2), Città S. Angelo, Florence (2), Genoa, Lucca, Manocalzati (2), Milan (23), Padua (2), Palermo (2), Piacenza, Pisa, Pordenone, Rome (7), Turin (4), Treviso (2), Udine (2) and Venice (2).
The comparison with the closest countries of the European Union sees the Data Centers in Italy somewhat below the other States in the area: in France there are 147, in Germany 190, in the United Kingdom 249, in the Netherlands 94. Italy remains however above Spain (58) and Greece (14).
Furthermore, according to a recent research by Dcd Intelligence, the total space dedicated to Data Centers in Italy as of 2017 covered 550 thousand square meters. Of these, 70% are “private”, while 30% are those dedicated to colocation / cloud or managed by telcos. The investment forecasts report growth of approximately + 1/2% per year between now and 2020. The weak points, according to the study, for the growth of Data Centers in Italy are identified in the risks on the natural / climatic front, socio / political, economic and energy convenience, while the availability of skills is above the average of the other EU countries .