private cloud [English]
n. ~ A deployment model in which a provider manages and supports infrastructure, platform, or software as a service for the exclusive use of a consumer.
The boundary between provider and consumer may be blurred in some contexts. The provider may be a part of the consumer's organization. Also, the consumer may be an organization that grants different business units or individuals access to its cloud.
- Gartner IT Glossary (†298 s.v. "private cloud computing"): A form of cloud computing that is used by only one organization, or that ensures that an organization is completely isolated from others.
- Mell and Grance 2011 (†334 p. 3): The cloud infrastructure is provisioned for exclusive use by a single organization comprising multiple consumers (e.g., business units). It may be owned, managed, and operated by the organization, a third party, or some combination of them, and it may exist on or off premises.
- Duranti 2013 (†408 ): A private Cloud infrastructure is operated for a single organisation, that is, the material kept in it does not share space with material belonging to other individuals or organizations. A private Cloud may be managed by the organization or by a third party, and may be hosted within the organization’s IT infrastructure, or externally. (†482)
- Evans 2013B (†340 ): Myth #1: Public cloud is the only true cloud. While public clouds continue to garner more notoriety than private clouds – particularly among the media and capital markets – the truth of the matter is that the volume of private cloud adoptions still exceeds that of public cloud adoption. (†322)
- Furht and Escalante 2010 (†583 p.7): Private cloud (or internal cloud) refers to cloud computing on private networks. Private clouds are built for the exclusive use of one client, providing full control over data, security, and quality of service. Private clouds can be built and managed by a company’s own IT organization or by a cloud provider. (†1201)
- Furht and Escalante 2010 (†583 p.68): Critics of private clouds point out that these corporations “still have to buy, build, and manage clouds” and as such do not benefit from lower up-front capital costs and less hands-on management, essentially “lacking the economic model that makes cloud computing such an intriguing concept.” While these criticisms are true from a purist’s point view, private clouds are a viable and necessary deployment model in the overall adoption of cloud computing as a new IT model. (†1204)
- McLelland, et al. 2014 (†403 7): The next type of cloud service implementation is a “private” cloud. Again, this term describes the number of clients who access the infrastructure. In this model, only the client who is purchasing the service would have its information stored in the infrastructure, which would be physically isolated from that of other clients. This type of implementation can be provided remotely but it may also be provided at the client’s site. It may even be owned and administered by the client for its employees. This model, particularly if it is owned and maintained by the client itself, is more expensive than the public model, but can offer better guarantees of security and privacy. [Text includes citations] (†452)
- NIST 2011B (†415 p. 21): The cloud infrastructure is operated solely for an organization. It may be managed by the organization or a third party and may exist on premise or off premise. (Source: NIST CC Definition) (†524)
- Rackspace 2014 (†433 ): A hybrid cloud gives you the benefits of both public and private clouds. For example, you can put public-facing components in a public cloud, while storing customer-sensitive data in a private cloud. (†563)
- Stancic, Rajg, and Milosevic 2013 (†904 p. 110): Where it is implied that the cloud infrastructure is built and provisioned for private use by a single organization. Private clouds in practice tend to be service-oriented with specific roles and requirements. (†2721)
- ViON 2014 (†432 ): Capacity Service, n. (1) A scalable, on-demand IT service for Enterprise Data Centers derived from deploying server, networking and/or storage hardware and associated software that is (a) priced and ordered on a unit of capacity basis; (b) installed at the customer’s location(s); (c) provisioned, made “Ready-for-Use” and maintained by an IT service provider in accordance with specific Service levels agreements for delivery, repair and return to Service; and (d) priced on a pre-determined, fixed unit-price basis and billed monthly based on ordered capacity. (2) A strategy for acquiring information technology (IT) capabilities to enable Cloud Computing and other embodiments of just-in-time computing. (†559)
- ViON 2014 (†432 ): ViON's Capacity Services enable "Private" Cloud Computing by providing a business strategy for customers to acquire and build their own Cloud, at their location(s), to their standards, using their unique security requirements. (†560)
- Wikipedia (†387 s.v. "Cloud computing"): Private cloud is cloud infrastructure operated solely for a single organization, whether managed internally or by a third-party and hosted internally or externally. Undertaking a private cloud project requires a significant level and degree of engagement to virtualize the business environment, and requires the organization to reevaluate decisions about existing resources. When done right, it can improve business, but every step in the project raises security issues that must be addressed to prevent serious vulnerabilities. Self-run data centers are generally capital intensive. They have a significant physical footprint, requiring allocations of space, hardware, and environmental controls. These assets have to be refreshed periodically, resulting in additional capital expenditures. They have attracted criticism because users "still have to buy, build, and manage them" and thus do not benefit from less hands-on management, essentially "[lacking] the economic model that makes cloud computing such an intriguing concept". (†432)