Knowledge base
What is subregion?
Posted by on 16.12.2013 10:06

Well-planned redundancy is necessary in order to ensure high availability of service, and thanks to subregions you can achieve the same level of redundancy that ensures physical separateness as dedicated servers while retaining all the benefits of using the cloud.

Cloud computing platform Oktawave on a physical level consists of computing clusters. Clusters are mutually physically separable in the area of ​​one data center. This applies to every internal aspect of the cluster:

  • computing power,
  • networks,
  • storage nodes.

The point of contact between the clusters is a physical connection to the Internet - routers and nodes of exchange traffic.

In Oktawave users have the possibility of manually select an area of accessibility, which consists of individual clusters and storage nodes. Such physically separable availability zones defines the term subregion.

This approach allows our customers to better planning solutions for high availability (HA ), effective management of allocated resources and greater control over the reliability of applications running in the Oktawave cloud Oktawave.

The main features of the sub-regions can gather the following statement .

  • Physical independence between subregions and thus the full independence of the services running on different subregions.
  • Ability to automatically or manually assign launched services to specific subregions.
  • Load balancing the traffic between subregions (e.g., a client running a Web server in the region of the PL-001 and the second in PL-002) with the containers.
  • Transparency of OPN private networks between subregions.
  • The ability to migrate individual disks between subregions (disk must be disconnected from the OCI or OCI must be turned off).
  • The ability to migrate individual OCI between subregions (OCI must be disabled).
  • Enhanced management of IP addresses. Booking a particular IP address is correct for each of the subregions.

This functionality applies to all of basic services in Oktawave:

  • OCI,
  • Application,
  • OPN,
  • OVS.

Good example of subregions concept is shown on the scheme below.

 

 

See how to use the subregions on the example of our step by step tutorial: "How to effectively use subregions designing high availability solutions".

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