Clusters in CNM Farms

CNM Cyber

Redundancies of CNM Cloud (hereinafter, the Lectio) is the lesson part of the Cloud Foundation Essentials lesson that introduces its participants to CNM Cloud. This lesson belongs to the Introduction to CNM Cloud session of the CNM Cyber Orientation.

Content

The successor predecessor lectio is What the Foundation Is.

Key terms

CNM Cloud Foundation. The combination of computing servers that host CNM Cloud, as well as those parts of the cloud that are provisioned to run serverless systems.

• WorldOpp Federated Servers. The computing server that hosts the software applications that WorldOpp Middleware powers. The CNM Next Servers is one of the CNM Cloud Foundation.
• CNM Next Servers. The computing server that hosts those non-federated end-user applications of CNM Cyber that the CNM Cyber Team administers. The Server is located at the 167.71.244.79 IP address. The CNM Next Servers are ones of the CNM Cloud Foundation. Another server, the CNM Fellow Servers, hosts the set of CNM apps that is identical to CNM Next Servers' set.
• CNM HandsOn Servers. The computing server of CNM Cloud Foundation that the CNM Cyber Team administers.
• CNM Fellow Servers. The computing server that hosts those non-federated end-user applications of CNM Cyber that the WorldOpp Fellow Staff administers. The Server is located at the 159.89.230.212 IP address. The CNM Fellow Servers is one of the CNM Cloud Foundation. Another server, the CNM Next Servers, host the set of CNM apps that is identical to Fellow Server's set. The difference is that Fellow Server's apps are used for career services, while Next Server's ones are used for hands-on training.

Script

To make CNM Cloud stable, all of its computing servers are run in computing clusters. Each cluster includes two or more identically-functioning servers. If one of them fails or is not available, another would continue running. This feature of the CNM Cloud Foundation is called redundancy.

Special load balancers make sure that the servers in one cluster work synchronously to cover for each other and the Cloud users access the server that serves them best.

No user, but the Foundation administrators, can detect that feature. Any clusters acts as a single computing server; only an emergency can possibly help to identify the Cloud's redundancies.

Databases of CNM Cloud is the successor lectio.

Questions

Lectio quiz

The answer is recorded for the lectio completion purpose:

• CNM Cabin is hosted by:
  1. CNM Next Servers
  2. WorldOpp Federated Servers
  3. CNM Fellow Servers
  4. CNM HandsOn Servers
  5. None of the other answers is correct.
• Which statement below is correct:
  1. CNM Cyber may include three identical CNM apps.
  2. While taking this course, you work on the CNM Fellow Servers.
  3. Future administrators of CNM apps get hands-on training at the CNM Next Servers.
  4. All of the other substantive answers are correct.
  5. None of the other answers is correct.