Types of environments found in hybrid clouds

  • *Public cloud: A public cloud is a cloud service run by an external vendor that may include servers in one or multiple data centers. Public clouds are shared by multiple organizations. Using virtual machines, individual servers may be shared by different companies, a situation that is called “multitenancy” because multiple companies are renting server space within the same physical server.
  • **On-premises private cloud: A private cloud is a data center wholly dedicated to one company. The servers in a private cloud aren’t shared by anyone else’s software, files, or data. On-premises private clouds are maintained and secured by the organizations themselves, not an external vendor.
  • Hosted private cloud: This is just like an on-premises private cloud in that the servers are dedicated wholly to one organization. However, the cloud servers in a hosted private cloud are not located in an organization’s offices — rather, a third-party provider hosts and maintains the cloud servers in one or more remote data centers, and the organization accesses the cloud over the Internet instead of an internal network. But unlike a public cloud, there is no multitenancy; the cloud servers are not shared with other organizations.
  • On-premises (legacy): On-premises or legacy deployments don’t use cloud technology at all. Instead, organizations using this model follow the classic practice of purchasing software licenses, installing and maintaining hardware on their premises, and installing software locally on employee computers. In other words, instead of working in Google Docs (for example), employees would use Microsoft Word, or some other program installed and running on their computers.

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TechGuy

TechGuy

Tech enthusiastic, life explorer, single, motivator, blogger, writer, software engineer