Fault-tolerant infrastructure in the cloud

An availability zone refers to infrastructure inside our data center. Yandex Cloud has three data centers and, accordingly, three zones: ru-central1-a, ru-central1-b, and ru-central1-d. They work independently of each other, ensuring maximum fault tolerance and reliability. The Compute Cloud service has an Instance Groups component that you can use to create and manage groups of virtual machines. With Instance Groups, loads are evenly distributed between VMs, and services are quickly restored in the event of failure. The component also allows you to run instances in any availability zone in order to efficiently use computing resources and ensure services’ availability to users.

Fault-tolerant infrastructure in Yandex Cloud consists of several key components: — The allocation of computing resources guarantees high availability and reliability of services, avoids data loss during equipment failures, and ensures system fault tolerance.

• Auto-scaling allows the system to quickly adapt to changing loads, avoid overloads, and ensure service stability.
• Data backup and replication help avoid data loss in case of system failures.
• Resource monitoring and management allows you to quickly identify and fix problems in the system.
• Yandex Cloud’s professional support responds quickly to problems and helps solve them.
  Together, these components ensure the fault tolerance of Yandex Cloud’s infrastructure, as well as stable and reliable operation of services.

Fault-tolerant infrastructure in the cloud ensures the continuous operation of applications and services, and increases the availability and reliability of the system.

There are zonal, multizonal, and regional fault-tolerant infrastructures in the cloud. Zonal infrastructure consists of a group of virtual machines (VMs) hosted in a single data center (availability zone). Each VM has access to shared resources and can take over a load in case of another VM’s failure. So loads are balanced and continuous operation is ensured even in the event of a failure of one of the VMs. Multizonal infrastructure consists of several groups of Vms located in two geographically distributed data centers (availability zones). Each zone is a separate infrastructure and can function independently of another zone. This ensures high fault tolerance, as the system can continue to operate in the event of a complete failure of one zone. Regional infrastructure invovles VMs located in three data centers (availability zones) at once. VMs in each of the zones process requests simultaneously, have access to shared resources, and can take over loads in the event of a failure of one or two availability zones. This ensures load balancing and continuous operation.

The cost depends on many factors. It depends, for example, on the type and number of components, the level of data protection, and system performance requirements. Contact us, and Yandex Cloud specialists will help you find the solution that’s right for you and calculate the cost.