Difference between revisions of "Data at CNM Farms"

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[[File:Cnm-digital.png|400px|thumb|right|[[CNM Cyber]]]][[Databases of CNM Cloud]] (hereinafter, the ''Lectio'') is the [[lectio|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]].
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[[File:Cnm-digital.png|400px|thumb|right|[[CNMCyber suite]]s]][[Data at CNM Farms]] (hereinafter, the ''Lectio'') is the [[lectio|lesson part]] of the '''[[CNM Farm Essentials]]''' [[lesson]] that introduces its participants to [[Opplet]]. This ''lesson'' belongs to the [[Introduction to CNM Cloud]] session of [[EmployableU Concepts]].
  
  
 
==Content==
 
==Content==
The successor predecessor [[lectio]] is [[Redundancies of CNM Cloud]].
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The predecessor [[lectio]] is [[CNM Cloud Databases]].
  
===Key terms===
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===Script===
:'''[[CNM Cloud Foundation]]'''. The combination of [[computing server]]s that host [[CNM Cloud]], as well as those parts of the cloud that are provisioned to run [[serverless]] systems.<div style="background-color:#efefef; padding: 5px; margin: 15px;">
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:Most of [[end-user application]]s of [[Opplet]] are supported by their own [[relational database management system]]s ([[relational database management system|RDBMS]]es).
:*'''[[WorldOpp Federated Servers]]'''. The [[computing server]] that hosts the [[software application]]s that [[WorldOpp Middleware]] powers. The [[CNM Next Servers]] is one of the [[CNM Cloud Foundation]].
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:*'''[[CNM Next Servers]]'''. The [[computing server]] that hosts those non-federated [[end-user application]]s of [[CNM Cyber]] that the [[CNM Cyber Team]] administers. The ''Server'' is located at the [http://167.71.244.79 167.71.244.79] [[IP address]]. The [[CNM Next Servers]] are ones of the [[CNM Cloud Foundation]]. Another server, the [[CNM Fellow Servers]], hosts the set of [[CNM app]]s that is identical to [[CNM Next Servers]]' set.
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:[[WorldOpp Middleware]] collects most important data from various ''systems'' throughout the [[CNM Farms]], transforms the collected data in a unified format, and stores the data in its [[NoSQL]] database. [[CNMCyber Team]] decides on what data shall be collected, transformed, and stored.
:*'''[[CNM HandsOn Servers]]'''. The [[computing server]] of [[CNM Cloud Foundation]] that the [[CNM Cyber Team]] administers.
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:*'''[[CNM Fellow Servers]]'''. The [[computing server]] that hosts those non-federated [[end-user application]]s of [[CNM Cyber]] that the [[WorldOpp Fellow Staff]] administers. The ''Server'' is located at the [http://159.89.230.212 159.89.230.212] [[IP address]]. The [[CNM Fellow Servers]] is one of the [[CNM Cloud Foundation]]. Another server, the [[CNM Next Servers]], host the set of [[CNM app]]s that is identical to Fellow Server's set. The difference is that Fellow Server's apps are used for [[career service]]s, while Next Server's ones are used for [[hands-on training]].</div>
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:To secure data from disasters such as computer failures and other [[data loss event]]s, all the data is backed up at the same time every day. At [[Opplet]], that means that the database data is copied and stored separately from the [[computing server]] on which the database is installed. In that way, the [[data backup]] wouldn't be destroyed if one ''server'' collapses.
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:For different ''systems'', the backup policies may vary, but the backup system always contains several copies of all data that [[CNMCyber Team]] considers worth saving. For instance, the system may contain backups that were made yesterday, a day before yesterday, last week, and last month. Commonly, one "old" backup is deleted when one new backup is made.  
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:As a disaster recovery, any data copy can substitute the original data in the database. However, no data backup cannot restore the data that have been created after the backup was made.
  
===Script===
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:Data of [[CNM Lab Farm]], which is used for experiments, is periodically destroyed. Data of [[CNM HandsOn Farm]], which support [[hands-on training]], is destroyed upon one's course completion.
:To make [[CNM Cloud]] stable, all of its [[software system]]s are run in [[cluster]]s. Each cluster includes two or more exactly the same systems. If one of them fails or is not available, another would continue running. This feature of the ''Cloud's'' structure is called [[redundancy]].
 
  
:Special [[load balancer]]s make sure that all the parts of the cloud work synchronously to cover for each other and the ''Cloud'' users access the right part of the structure.
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===Key terms===
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:[[Data]], [[data backup]]
  
'''[[CNM Cloud Online]]''' is the successor [[lectio]].
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===Closing===
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:Would you like to work for data backup procedures in [[Opplet]]?--- Yes/No/I'm not sure
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'''[[Clusters in CNM Farms]]''' is the successor [[lectio]].
  
 
==Questions==
 
==Questions==
 
===Lectio quiz===
 
:The answer is recorded for the lectio completion purpose:
 
:*[[CNM Cabin]] is hosted by:<ol type="a"><li>[[CNM Next Servers]]</li><li>[[WorldOpp Federated Servers]]</li><li>[[CNM Fellow Servers]]</li><li>[[CNM HandsOn Servers]]</li><li>None of the other answers is correct.</li></ol>
 
:*Which statement below is correct:<ol type="a"><li>[[CNM Cyber]] may include three identical [[CNM app]]s.</li><li>While taking this course, you work on the [[CNM Fellow Servers]].</li><li>Future administrators of [[CNM app]]s get [[hands-on training]] at the [[CNM Next Servers]].</li><li>All of the other substantive answers are correct.</li><li>None of the other answers is correct.</li></ol>
 
  
 
===Placement entrance exam===
 
===Placement entrance exam===

Latest revision as of 09:26, 15 November 2023

Data at CNM Farms (hereinafter, the Lectio) is the lesson part of the CNM Farm Essentials lesson that introduces its participants to Opplet. This lesson belongs to the Introduction to CNM Cloud session of EmployableU Concepts.


Content

The predecessor lectio is CNM Cloud Databases.

Script

Most of end-user applications of Opplet are supported by their own relational database management systems (RDBMSes).
WorldOpp Middleware collects most important data from various systems throughout the CNM Farms, transforms the collected data in a unified format, and stores the data in its NoSQL database. CNMCyber Team decides on what data shall be collected, transformed, and stored.
To secure data from disasters such as computer failures and other data loss events, all the data is backed up at the same time every day. At Opplet, that means that the database data is copied and stored separately from the computing server on which the database is installed. In that way, the data backup wouldn't be destroyed if one server collapses.
For different systems, the backup policies may vary, but the backup system always contains several copies of all data that CNMCyber Team considers worth saving. For instance, the system may contain backups that were made yesterday, a day before yesterday, last week, and last month. Commonly, one "old" backup is deleted when one new backup is made.
As a disaster recovery, any data copy can substitute the original data in the database. However, no data backup cannot restore the data that have been created after the backup was made.
Data of CNM Lab Farm, which is used for experiments, is periodically destroyed. Data of CNM HandsOn Farm, which support hands-on training, is destroyed upon one's course completion.

Key terms

Data, data backup

Closing

Would you like to work for data backup procedures in Opplet?--- Yes/No/I'm not sure

Clusters in CNM Farms is the successor lectio.

Questions

Placement entrance exam