Difference between revisions of "Data at CNM Farms"

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==Content==
 
==Content==
 
The predecessor [[lectio]] is [[CNM Cloud Databases]].
 
The predecessor [[lectio]] is [[CNM Cloud Databases]].
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===Key terms===
 
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:'''[[CNM Farms]]'''. 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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:*'''[[WorldOpp Federated Farm]]'''. The [[computing server]] that hosts the [[software application]]s that [[WorldOpp Middleware]] powers. The [[CNM Cloud Next]] is one of the [[CNM Farms]].
 
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:*'''[[CNM Cloud Next]]'''. 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 Cloud Next]] are ones of the [[CNM Farms]]. Another server, the [[CNM EndUser Farm]], hosts the set of [[CNM app]]s that is identical to [[CNM Cloud Next]]' set.
 
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:*'''[[CNM HandsOn Farm]]'''. The [[computing server]] of [[CNM Farms]] that the [[CNM Cyber Team]] administers.
 
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:*'''[[CNM EndUser Farm]]'''. 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 EndUser Farm]] is one of the [[CNM Farms]]. Another server, the [[CNM Cloud Next]], 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>
 
  
 
===Script===
 
===Script===
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:Data of [[CNM Cloud Next]], 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.
 
:Data of [[CNM Cloud Next]], 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.
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===Key terms===
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:[[Data]], [[data backup]]
  
 
===Closing===
 
===Closing===

Revision as of 02:31, 13 October 2020

CNM Cyber

Data at CNM Farms (hereinafter, the Lectio) is the lesson part of the CNM Farm 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 predecessor lectio is CNM Cloud Databases.

Script

Most of end-user applications of CNM Cloud 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. The CNM Cyber 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 CNM Cloud, 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 the CNM Cyber 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 Cloud Next, 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

Clusters in CNM Farms is the successor lectio.

Questions

Placement entrance exam

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