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OpenNebula Internal Architecture
OpenNebula is a cloud computing platform for managing heterogeneous distributed data center infrastructures. The OpenNebula platform manages a data center's virtual infrastructure to build private, public and hybrid implementations of Infrastructure as a Service. The two primary uses of the OpenNebula platform are data center virtualization and cloud deployments based on the KVM hypervisorLXD/LXCsystem containers, anAWS FirecrackermicroVMs. The platform is also capable of offering the cloud infrastructure necessary to operate a cloud on top of existing VMware infrastructure. In early June 2020, OpenNebula announced the release of a new Enterprise Edition for corporate users, along with a Community Edition. OpenNebula CE is free and open-source software, released under the Apache License version 2. OpenNebula CE comes with free access to maintenance releases but with upgrades to new minor/major versions only available for users with non-commercial deployments or with significan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OpenNebula Internal Architecture
OpenNebula is a cloud computing platform for managing heterogeneous distributed data center infrastructures. The OpenNebula platform manages a data center's virtual infrastructure to build private, public and hybrid implementations of Infrastructure as a Service. The two primary uses of the OpenNebula platform are data center virtualization and cloud deployments based on the KVM hypervisorLXD/LXCsystem containers, anAWS FirecrackermicroVMs. The platform is also capable of offering the cloud infrastructure necessary to operate a cloud on top of existing VMware infrastructure. In early June 2020, OpenNebula announced the release of a new Enterprise Edition for corporate users, along with a Community Edition. OpenNebula CE is free and open-source software, released under the Apache License version 2. OpenNebula CE comes with free access to maintenance releases but with upgrades to new minor/major versions only available for users with non-commercial deployments or with significan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OpenNebula Systems
OpenNebula Systems, formerly known as C12G Labs, is an software company that develops and provides commercial support for the open source cloud management platform OpenNebula. History The company was first established in March 2010 as C12G Labs. Based in Madrid (Spain), the company was founded by the original developers of OpenNebula. In September 2014, C12G changed its name to OpenNebula Systems, associating itself more closely with its product. In April 2015, OpenNebula Systems created a subsidiary in the US. OpenNebula Systems USA, LLC is located in Cambridge, Massachusetts. In September 2019, OpenNebula Systems announced that it was awarded from the EU Horizon 2020 SME Instrument program to assist in the development of ONEdge, a project to bring the private cloud to the edge through cloud disaggregation. , the company moved its headquarters to La Finca Business Park. Products OpenNebula Systems developed "OpenNebula", a free and open source program for data center v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Free And Open-source Software
Free and open-source software (FOSS) is a term used to refer to groups of software consisting of both free software and open-source software where anyone is freely licensed to use, copy, study, and change the software in any way, and the source code is openly shared so that people are encouraged to voluntarily improve the design of the software. This is in contrast to proprietary software, where the software is under restrictive copyright licensing and the source code is usually hidden from the users. FOSS maintains the software user's civil liberty rights (see the Four Essential Freedoms, below). Other benefits of using FOSS can include decreased software costs, increased security and stability (especially in regard to malware), protecting privacy, education, and giving users more control over their own hardware. Free and open-source operating systems such as Linux and descendants of BSD are widely utilized today, powering millions of servers, desktops, smartphones (e.g., ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypervisor
A hypervisor (also known as a virtual machine monitor, VMM, or virtualizer) is a type of computer software, firmware or hardware that creates and runs virtual machines. A computer on which a hypervisor runs one or more virtual machines is called a ''host machine'', and each virtual machine is called a ''guest machine''. The hypervisor presents the guest operating systems with a virtual operating platform and manages the execution of the guest operating systems. Unlike an emulator, the guest executes most instructions on the native hardware. Multiple instances of a variety of operating systems may share the virtualized hardware resources: for example, Linux, Windows, and macOS instances can all run on a single physical x86 machine. This contrasts with operating-system–level virtualization, where all instances (usually called ''containers'') must share a single kernel, though the guest operating systems can differ in user space, such as different Linux distributions with the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cloudburst
A cloudburst is an extreme amount of precipitation in a short period of time, sometimes accompanied by hail and thunder, which is capable of creating flood conditions. Cloudbursts can quickly dump large amounts of water, e.g. 25 mm of precipitation corresponds to 25,000 metric tons per square kilometre (1 inch corresponds to 72,300 short tons over one square mile). However, cloudbursts are infrequent as they occur only via orographic lift or occasionally when a warm air parcel mixes with cooler air, resulting in sudden condensation. At times, a large amount of runoff from higher elevations is mistakenly conflated with a cloudburst. The term "cloudburst" arose from the notion that clouds were akin to water balloons and could burst, resulting in rapid precipitation. Though this idea has since been disproven, the term remains in use. Properties Rainfall rate equal to or greater than per hour is a cloudburst. However, different definitions are used, e.g. the Swedish weat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C12G
OpenNebula Systems, formerly known as C12G Labs, is an software company that develops and provides commercial support for the open source cloud management platform OpenNebula. History The company was first established in March 2010 as C12G Labs. Based in Madrid (Spain), the company was founded by the original developers of OpenNebula. In September 2014, C12G changed its name to OpenNebula Systems, associating itself more closely with its product. In April 2015, OpenNebula Systems created a subsidiary in the US. OpenNebula Systems USA, LLC is located in Cambridge, Massachusetts. In September 2019, OpenNebula Systems announced that it was awarded from the EU Horizon 2020 SME Instrument program to assist in the development of ONEdge, a project to bring the private cloud to the edge through cloud disaggregation. , the company moved its headquarters to La Finca Business Park. Products OpenNebula Systems developed "OpenNebula", a free and open source program for data center v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VCloud
vCloud Air was a public cloud computing service built on vSphere from VMware. vCloud Air has three "infrastructure as a service" (IaaS) subscription service types: dedicated cloud, virtual private cloud, and disaster recovery. vCloud Air also offers a pay-as-you-go service named Virtual Private Cloud OnDemand. In Q2 2017, VMware sold vCloud Air to French cloud service provider OVH. History VMware announced the vCloud initiative at the 2008 VMworld conference in Las Vegas and garnered significant press attention. At the 2009 VMworld conference in San Francisco vCloud was featured in the vCloud Pavilion. vCloud was also a subject at the 2010 VMworld conference. On May 21, 2013, the early access program for vCloud Hybrid Service was launched. On August 26, 2013, general availability was announced for vCloud Hybrid Service including features such as DRaaS and Direct Connect. vCloud Hybrid Service was rebranded to vCloud Air on August 21, 2014. vCloud Air provides a hybrid cloud—a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open Cloud Computing Interface
The Open Cloud Computing Interface (OCCI) is a set of specifications delivered through the Open Grid Forum, for cloud computing service providers. OCCI has a set of implementations that act as proofs of concept. It builds upon World Wide Web fundamentals by using the Representational State Transfer (REST) approach for interacting with services. Scope The aim of the Open Cloud Computing Interface is the development of an open specification and API for cloud offerings. The focus was on Infrastructure-as-a-Service (IaaS) based offerings but the interface can be extended to support Platform and Software as a Service offerings as well. IaaS is one of three primary segments of the cloud computing industry in which compute, storage and network resources are provided as services. The API is based on a review of existing service-provider functionality and a set of use cases contributed by the working group. OCCI is a boundary API that acts as a service front-end to an IaaS provider†... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amazon EC2
Amazon Elastic Compute Cloud (EC2) is a part of Amazon.com's cloud-computing platform, Amazon Web Services (AWS), that allows users to rent virtual computers on which to run their own computer applications. EC2 encourages scalable deployment of applications by providing a web service through which a user can boot an Amazon Machine Image (AMI) to configure a virtual machine, which Amazon calls an "instance", containing any software desired. A user can create, launch, and terminate server-instances as needed, paying by the second for active servershence the term "elastic". EC2 provides users with control over the geographical location of instances that allows for latency optimization and high levels of redundancy. In November 2010, Amazon switched its own retail website platform to EC2 and AWS. History Amazon announced a limited public beta test of EC2 on August 25, 2006, offering access on a first-come, first-served basis. Amazon added two new instance types (Large and Extra- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Software Portability
A computer program is said to be portable if there is very low effort required to make it run on different platforms. The pre-requirement for portability is the generalized abstraction between the application logic and system interfaces. When software with the same functionality is produced for several computing platforms, portability is the key issue for development cost reduction. Strategies for portability Software portability may involve: * Transferring installed program files to another computer of basically the same architecture. * Reinstalling a program from distribution files on another computer of basically the same architecture. * Building executable programs for different platforms from source code; this is what is usually understood by "porting". Similar systems When operating systems of the same family are installed on two computers with processors with similar instruction sets it is often possible to transfer the files implementing program files between the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interoperability
Interoperability is a characteristic of a product or system to work with other products or systems. While the term was initially defined for information technology or systems engineering services to allow for information exchange, a broader definition takes into account social, political, and organizational factors that impact system-to-system performance. Types of interoperability include syntactic interoperability, where two systems can communicate with each other, and cross-domain interoperability, where multiple organizations work together and exchange information. Types If two or more systems use common data formats and communication protocols and are capable of communicating with each other, they exhibit ''syntactic interoperability''. XML and SQL are examples of common data formats and protocols. Lower-level data formats also contribute to syntactic interoperability, ensuring that alphabetical characters are stored in the same ASCII or a Unicode format in all the commun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Standardization
Standardization or standardisation is the process of implementing and developing technical standards based on the consensus of different parties that include firms, users, interest groups, standards organizations and governments. Standardization can help maximize compatibility, interoperability, safety, repeatability, or quality. It can also facilitate a normalization of formerly custom processes. In social sciences, including economics, the idea of ''standardization'' is close to the solution for a coordination problem, a situation in which all parties can realize mutual gains, but only by making mutually consistent decisions. History Early examples Standard weights and measures were developed by the Indus Valley civilization.Iwata, Shigeo (2008), "Weights and Measures in the Indus Valley", ''Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures (2nd edition)'' edited by Helaine Selin, pp. 2254–2255, Springer, . The centralized we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
