"Cloud Service or Cloud Hosting are terms that come to describe computing services delivered through the Internet. The term "Cloud" refers to a web hosting service delivered from a clustered computer system that uses certain virtualization technology, and not from a stand-alone physical server. In any Cloud system, there are a number of nodes (servers) that combine their computing resources into a Compute Cloud (cloud computing system). Compute Clouds have two major components - "Processing Nodes" and "Storage Area Networks".

RAX Data Center - Непрекъсваемо електрозахранване

What does Cloud Hosting mean?

Cloud Hosting means that the Internet Hosting service (Virtual Hosting, Virtual Cloud Server, etc.) is produced and delivered by a cluster of virtualized servers, which work as a system. Cloud computing uses virtualization technologies to create hardware and software-agnostic computing instances. If any virtual computing instance resides on top of a stand-alone physical server, it is called a "Virtual Machine" or "Virtual Server". If it resides on top of a clustered computing system, it is called a "Cloud Server". So, the term "Cloud Hosting" means that the web hosting services is delivered from a Cloud Computing system.

Are there any different types of Cloud services?

Cloud computing and cloud services available at Rax Cloud are Public Clouds, Private Clouds, and Hybrid Clouds. The Private Clouds are isolated computing instances, unreachable over the public Internet. They are created for the internal business workflows of the organizations that use them. Public Clouds are open to the Internet and used for delivering public IT services. Hybrid Clouds provide workflows, operations, and data exchange between Private Clouds and Public Clouds and are built on demand with special functionality.

What is the Computer Cloud?

Cloud Computing describes a group of servers connected to a system that has two components - virtualized servers called "Processing Nodes", which deal with computation, and a physically separated Storage Area Network where the data is stored. Cloud computing systems have a number of advantages over stand-alone physical servers. One of them is the resource scalability and the possibility for any cloud computing instance (Cloud Server) to receive additional computing resources (processor cores, memory, storage space, etc.) at any time.

A very important advantage of the RAX Cloud Computing infrastructure is the so-called "High Availability" (HA). HA is a service that automatically restarts any Cloud Server, which has stopped delivering services due to any OS failure or downtime on the underlying physical host. The High Availability service reduces downtime and is one of the main advantages of the Cloud Services which reside on the RAX infrastructure.

Another strategic advantage and very important functionality of the Cloud Servers on RAX Cloud is the so-called "Automated Fault Tolerance" (AFT). AFT eliminates the risk of a service outage. Unlike the High Availability, which reduces any outage, the Automated Fault Tolerance function provides continuous availability for applications in an event of cloud server failure. AFT creates a live shadow Cloud server (Failover Cloud Virtual Machine), which is 100% synchronized and always up-to-date with the primary one. In an event of an OS failure or a hardware outage, the AFT automatically starts the failover Cloud Server, ensuring zero downtime and preventing data loss.

What Cloud Computing technology does RAX use?

Rax.bg uses VMware Cloud Computing technologies. VMware offers the world's most robust and reliable Cloud infrastructure automation platform and is a leader in the global Cloud computing market.

RAX Cloud itself is an enterprise-grade Cloud infrastructure that delivers various computing services with High Availability, Fault Tolerance for storage and processing operations. We offer servers with scalable computing resources and host your data on Fault-Tolerant Storage Area Network.

Review sections Cloud Servers & Services and Cloud Web Hosting. If you have questions, please contact us and we will answer them.



We host your data on a Storage Area Network that has built-in protection and keeps the information safe, under any circumstances.


HA is not a standard service. It minimizes IT services outage, but more 95% of the providers you'd find, don't support it. We do!


Take advantage from our Failover, 100% Uptime Cloud Servers. They never go down and give you business continuity.


We provide Web Hosting, Dedicated and Cloud computing servers in any point of the world, wherever you need them.