Data center services:

Shared hosting. Providing a limited part of disk space, processor time, RAM to the client for use. Large data centers usually do not provide such a mass service due to the need to provide technical and consulting support. When using shared hosting, one physical server is shared between many clients (hundreds or thousands). Each client is not guaranteed any resource allocation, but the maximum is strictly limited. Clients cannot configure the server anymore. Shared hosting has two main advantages: low cost and ease of site management. For these reasons, shared hosting is mostly used by individuals.
VPS hosting (VDS). Providing a guaranteed and limited server part (part of all resources). An important feature of this type of hosting is the division of the server into several virtual independent servers implemented by software.
Server rental (Dedicated). The data center provides the client with a server for rent of various configurations. Large data centers mainly specialize in these types of services. Depending on the country where the data center is located, there are different traffic restrictions.
Server placement in the data center (Colocation). Hosting a client’s server at the data center site for a fee. The cost depends on the channel connected to the server and the size of the rack occupied by the server.
Network infrastructure
ffxiv data center
Today, data center communications are most often based on networks using the IP protocol. The data center contains a number of routers and switches that manage traffic between servers and the outside world. For reliability, the data center is sometimes connected to the Internet using many different external channels from different ISPs.
Some servers in the ffxiv data centres are used for the operation of basic Internet and intranet services that are used within the organization: mail servers, proxies, DNS, etc. Oh Network security level is supported by: firewalls, VPN gateways, IDS systems, etc. Traffic monitoring systems and some applications are also used.

Data center reliability levels:

Level 1 – Basic: 99.671% always available

The data center is susceptible to disruptions in the normal course of work, both from planned and unplanned actions;
It has only one path (channel) for power and cooling distribution without redundant (redundant) components (N);
May or may not have a raised floor, UPS or generator;
Deployed in 3 months;
Annual downtime – 28.8 hours;
The center must come to a complete stop to perform preventive maintenance and preventive maintenance.

Tier 2 – redundant ffxiv data center split (with redundant components): 99.741% always-on availability

Less susceptible to disruptions to the normal course of work, both from planned and unplanned actions;
Has one path (channel) for power and cooling distribution, but with redundant components (N + 1);
Has a raised floor, UPS and generator
Deployment time – 3 to 6 months
Annual downtime – 22.0 hours
Maintenance and repair of the power supply channel and other parts of the facility’s infrastructure requires stopping the data processing.

Level 3 – data center with the possibility of parallel repair and maintenance work: constant availability ratio 99.982%

Allows planned activities without disrupting the normal operation of the turbine room equipment, however, unplanned events can still lead to disruption of its operation;
Has multiple paths (channels) for power and cooling distribution, but only one of them is active; has redundant components (N + 1);
Deployment time – 15 to 20 months;
Annual downtime – 1.6 hours;
Has enough power and distribution capabilities so that when one path (channel) is loaded, it is possible to simultaneously service or test another path.

Tier 4 – Fault Tolerant Data Center: 99.995% Always-On

Planned actions do not disrupt critical workload, and the data center is able to handle at least one unplanned incident of the worst nature without consequences for the critical workload;
Has several active load sharing and cooling paths with redundant components (2 (N + 1), i.e. 2 UPSs with N + 1 redundancy each);
Deployment time – 15 to 20 months
Annual downtime – 0.4 hours
We can offer you a complete energy infrastructure for your data center, starting from the electrical entrance to the premises / building and ending with the input power supply of any of your equipment.

The following tasks will be solved with the degree of fault tolerance specified by you:

power supply;
power distribution;
placement of equipment;
management and control;
Fault tolerance of all equipment is especially critical for any telecommunications company or bank – the server room has no right to stop, any failure threatens with direct losses for the company.