Coolhousing operates its own datacentre with three server rooms in the centre of Prague, on premises of Stimbuilding at Vinohradská třída, directly at the location of the NIX.cz exchange.
The datacentre is located high above the flood area and datacentre space is allocated exclusively to Coolhousing.
Datacentre air conditioning
Our server rooms are cooled via a system of cold and hot aisles by several independent air condition units in the N+1 configuration. The functionality of each of them is continuously monitored by an automated monitoring system.
At the same time, independent temperature sensors that monitor input and output air temperature are placed at each air conditioning unit.
Power supplies are fully backed up. Short-term interruptions in the supply are covered by a cascade of modules of the central UPS 70NET 40/33 in N+1 configuration and by EATON 93PM-50. The UPS unit not only provides the power, but it also protects the entire network from "spikes" that can appear within the network.
Prolonged power outages are covered by two independent diesel generators. The power supply system is strictly divided into two parts, the IT part (servers) operated with SDMO 200 Moto-Generator and a non-IT section (air conditioning, lights) operated always by Cummins C110 D5 Moto-Generator.
EPS (electronic fire-prevention system)
All our server rooms are equipped with a modern laser fire-prevention detection system VESDA VLF250 that is tested for functionality of sensors, sirens, etc. in regular intervals. As one of a few datacentre operators, we do not leave anything to chance and, therefore, for the case of fire, we have optical temperature sensors placed under false flooring even outside of the data hall.
An operator who carries out monitoring in the 24/7 regime is physically present in a datacentre the whole-year round, including holidays. It cannot happen that authorized parties would not be able to access their equipment or that you would not be able to reach the datacentre by phone. Unauthorized persons are not able to enter a server room, handle equipment, or submit requests for work on equipment.
Security of the datacentre and its adjacent areas is continuously monitored by a security agency's camera system. Datacentre premises are monitored by our own camera systems and operators from the monitoring centre. The camera system is operated under a valid registration issued by the Personal Data Protection Office under registration number 00033872.
The Coolhousing datacentre network is a multivendor solution - combination of Juniper (for routing) and Cisco (on the access layer) brand technologies. Everything is interconnected in loops via PVST (Per Vlan spanning tree). Individual elements of the network are linked up by a four-gigabyte or ten-gigabyte connection. Load is completely distributed and it steadily stays under 30% of uplink.
The main routing is ensured by Juniper MX routers in a redundant setup. From the server at Vinohradská, as well as from the server in CEColo / Sitel, the optical paths are leading in two directions. The direction Datacentre T-Mobile/GTS Novera is the primary route, and the Datacenter CEColo and Nagano are connected as secondary route. Connectivity to the Datacenter is provided by passive elements and leads through three geographically separated points; therefore, it can offer a complete redundancy of the connectivity and independence from one single access point / location.
More information about our network infrastructure find at https://www.coolhousing.net/en/network-structure.
In January 2015, Coolhousing won the statute of a "trusted provider" when it joined the Secure Network Project, together with other major players FENIX.
The FENIX Project originated at the Czech peering node NIX.CZ in 2013 as a response to intensive DoS attacks which targeted major Czech media, banks and mobile operators in March of that year. The aim of the project is to ensure availability of Internet services in case of a DoS attack, from at least the most important service and content providers that are participating in this activity. With Coolhousing, you too can join the Czech internet elite.
Anti-DDoS, Protection Against Threat
On the input to the Datacenter the Radware DefensePro device is connected to protect the technology against network attacks. This device greatly increases the availability of all services by filtering attacks. Behavioural analysis of the data flow, performed in real time, enables a real protection of the customers even against attacks that cannot be detected by other systems.
The Anti-DoS / DDoS protection service uses premium components Radware DefensePro, membership in the secure FENIX Network Project, and the long-term experience of the administrators from Coolhousing.
More information about protection against network attacks find here.