Regions and Zones
Each region is a geographically separate instance and can be divided into several isolated zones.
Each region is fully independent. Although zones are self-contained, they are connected to all other zones in the same region.
Regions are fully isolated from one another, which provides the best possible level of fault tolerance and stability in the event of failures.
In the selected region, you can view virtual machines and volumes for a specific zone or all zones.
Regions are isolated from one another, and resources in different locations are not automatically copied to other regions.
All connections between the regions are made over the Internet, which is why an adequate encryption method must be used to protect the data.
Data between the regions is transferred at the Internet data transfer speed.
Local networks of virtual machines located in different availability zones can be combined in one region. For example, you can configure the backup of data and applications for exchanging data at high speed and create a fault tolerant system protected from Internet outages or equipment failures.
Availability zones are isolated region segments hosted on separate racks and equipment. All network resources in a region are public. We do not put any restrictions on connecting servers in different zones in a local network.
Note: different CPUs may be provided in different zones. Their performance and prices may vary. Please see our website for more details.
When launching a cloud server (virtual machine), you must choose an availability zone, otherwise a zone with available resources will be assigned automatically. Select an image located in the same region. If the image is located in another region, re-upload it to the desired region.
You can raise the fault tolerance of your application by installing it on servers in different zones. You can also quickly reassign floating IP address to a machine on a local network to provide Internet access.
Limits may eventually be set on the number of resources that can be rented in each zone. Not all zones and regions may be available to your account.
Availability zones are represented by a region code followed by a letter that identifies the zone; for example: ru-1a is the first available zone in the region ru-1.
The number of availability zones in a region may vary between your accounts. A list of zones available to your account can be viewed in the Control panel or command line interface.
You can use private availability zones if necessary.
Availability Regions and Zones
|St. Petersburg||ru-1||ru-1a, ru-1b, ru-1c|
|Moscow||ru-2||ru-2a, ru-2b, ru-2c|