--- title: "Three availability zones (3-AZ)" description: "Three independent data centers in the Tricity, Poland — MP100, GAC133 and IQ — on a 100 Gbps fiber ring. Redundant power and network. Explore Nodea's 3-AZ!" url: "https://nodea.io/en/infrastruktura" lang: "en" updated: "2026-07-13" --- # Three availability zones (3-AZ) ## Three availability zones (3-AZ) Three independent data centers in the Tricity, Poland, linked by a 100 Gbps fiber-optic ring. One coherent platform for cloud, hosting and disaster recovery — with data that stays in Poland. ## What a 3-AZ architecture gives you ### Resilience to a full DC failure If one facility goes down, your services keep running in the two remaining independent availability zones. ### Cross-zone replication and DR Keep backups and machine replicas in physically separated buildings — a natural foundation for disaster recovery. ### 100 Gbps fiber ring Multiple 100 Gbps links, fibers entering each building from different sides along independent routes. A single cable cut does not break communication. ### Low latency within Poland All three facilities are in the Tricity, with inter-zone latency of roughly 0.3 ms. ### TIER III-class facilities Redundant power (N+1, 2N), generators and UPS units, precision cooling and inert-gas fire suppression. Continuity even when individual systems fail. ### Data in Poland, GDPR-compliant Processing exclusively in Polish data centers, with Polish support and contracts. Full control over where your data lives. ## Where the zones are and how they connect Data centre locations come from the data we manage in the panel. Distances on the diagram are straight-line. Region: Tricity **Availability zones** - **MP100** (MP100) — Gdańsk, ul. Marynarki Polskiej 100 80-557 Gdańsk, coordinates 54.3841, 18.6396 - **IQ Data Center** (IQ) — Gdańsk, ul. Geodetów 16 80-298 Gdańsk, coordinates 54.3575, 18.481 - **GAC133** (GAC133) — Gdynia, ul. Chwaszczyńska 133A 81-571 Gdynia, coordinates 54.4595, 18.4595 **Links between zones** - MP100 ↔ IQ: 100 Gb/s - IQ ↔ GAC133: 100 Gb/s - GAC133 ↔ MP100: 100 Gb/s ## Three independent data centers ### MP100 — Gdańsk (TIER III) Marynarki Polskiej 100. 450 m² of space, 120 racks, 600 kW of power. 2 generators, 2 transformer stations, Benning UPS (N+1), VESDA smoke detection and FM200 gas fire suppression. ### GAC133 — Gdynia (TIER III) 720 m² of space, 90 racks, 600 kW of power. 750 kVA generator with 4500 l fuel tanks and a hook-up for a mobile generator, Emerson UPS (N+1), FM200 suppression and cold/hot aisle cooling. ### IQ Data Center — Gdańsk Geodetów 16. Availability class 3 under EN 50600, ISO 27001, ISO 22301, ISO 9001 and PCI DSS certificates. Over 3,000 m² across two facilities (DC1 and DC2), 2N power, free cooling (N+1), VESDA smoke detection and gas fire suppression (Novec 1230 / IG-100). Fibre ducts along two separate routes — 5 fibre operators and 9 internet providers. ## Our data centers - [Server hall inside our data center (Serwerownia z zabudową zimnego korytarza — szafy rack w centrum danych Nodea)](https://nodea.pl/storage/cms/1/2026/07/dc-serwerownia-1.jpg) - [Server aisle — rows of racks (Rząd szaf serwerowych w centrum danych — widok alejki serwisowej)](https://nodea.pl/storage/cms/1/2026/07/dc-serwerownia-2.jpg) - [Network gear and servers at the IQ facility (Szafy serwerowe z podświetleniem statusu w centrum danych)](https://nodea.pl/storage/cms/1/2026/07/dc-serwerownia-3.jpg) - [Cabling and PDUs — structured rack power (Szafa rack z okablowaniem i listwami PDU w serwerowni)](https://nodea.pl/storage/cms/1/2026/07/dc-szafa-rack.jpg) - [Power switchgear — redundant feeds (N+1, 2N) (Rozdzielnia zasilania (switchgear) w centrum danych — redundantne tory zasilania)](https://nodea.pl/storage/cms/1/2026/07/dc-zasilanie.jpg) - [Automatic inert-gas fire suppression (FM200) (Butle systemu gaszenia gazem FM200 w serwerowni)](https://nodea.pl/storage/cms/1/2026/07/dc-gaszenie-fm200.jpg) ### Physical security The data-center buildings are monitored and guarded around the clock, with electronic access control, CCTV and 24/7/365 security. Server rooms are equipped with VESDA early smoke detection and automatic inert-gas fire suppression that does not damage hardware. ### Reliable connectivity Carrier-neutral data centers with cross-connects of most national and local operators: Orange, Netia, UPC, Task, Exatel, T-Mobile, Limes/Vectra, TBTelecom, Telkros, Atman. Diversified cable ducts and building entries (protection against accidental digging damage) plus several exits to the global network and internet exchanges — EPIX, TPIX, Thinx. ## Frequently asked questions ### What is an availability zone? It's a physically independent data center with its own power, cooling and network connectivity. Spreading services across three zones means the failure of one facility does not stop operations — your services keep running in the two remaining zones. ### What does TIER III class mean? TIER III is a data-center design level with redundant power and cooling systems (N+1, 2N) that allows maintenance without interrupting operations. In practice it means high availability and resilience to the failure of individual components. ### How low is inter-zone latency? All three facilities are located in the Tricity, with inter-zone latency of roughly 0.3 ms — so the zones behave like one coherent platform. ### What certifications and compliance does the infrastructure provide? The IQ Data Center facility holds ISO 27001, ISO 22301, ISO 9001 and PCI DSS certificates, and its availability corresponds to class 3 under the EN 50600 standard series. We process data exclusively in Polish data centers, in compliance with GDPR. ### Can I build a disaster recovery plan on this? Yes. Three physically separated zones joined by a 100 Gbps ring let you keep backups and replicas in different buildings and replicate data and machines across locations — a natural foundation for a disaster recovery plan. ## Let's talk about your project [Contact us](https://nodea.io/en/kontakt) --- Languages: [pl](https://nodea.pl/pl/infrastruktura.md) Site index: [llms.txt](https://nodea.io/en/llms.txt)