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Elastic Cloud Storage
An elastic cloud is a cloud computing offering that provides variable service levels based on changing needs. Elasticity is an attribute that can be applied to most cloud services. It states that the capacity and performance of any given cloud service can expand or contract according to a customer's requirements and that this can potentially be changed automatically as a consequence of some software-driven event or, at worst, can be reconfigured quickly by the customer's infrastructure management team. Elasticity has been described as one of the five main principles of cloud computing by Rosenburg and Mateos in ''The Cloud at Your Service'' - Manning 2011. History Cloud computing was first described by Gillet and Kapor in 1996; however, the first practical implementation was a consequence of a strategy to leverage Amazon's excess data center capacity. Amazon and other pioneers of the commercial use of this technology were primarily interested in providing a “public” clou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cloud Computing
Cloud computing is the on-demand availability of computer system resources, especially data storage ( cloud storage) and computing power, without direct active management by the user. Large clouds often have functions distributed over multiple locations, each of which is a data center. Cloud computing relies on sharing of resources to achieve coherence and typically uses a "pay as you go" model, which can help in reducing capital expenses but may also lead to unexpected operating expenses for users. Value proposition Advocates of public and hybrid clouds claim that cloud computing allows companies to avoid or minimize up-front IT infrastructure costs. Proponents also claim that cloud computing allows enterprises to get their applications up and running faster, with improved manageability and less maintenance, and that it enables IT teams to more rapidly adjust resources to meet fluctuating and unpredictable demand, providing burst computing capability: high computing p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DigitalOcean
DigitalOcean Holdings, Inc. () is an American multinational technology company and cloud service provider. The company is headquartered in New York City, New York, USA, with 15 globally distributed data centers worldwide. DigitalOcean provides developers, startups, and SMBs with cloud infrastructure-as-a-service platforms. DigitalOcean also runHacktoberfest a one month-long celebration of open source software held in October. Each year it partners with different software companies including GitHub, Twilio, Dev.to, Intel, AppWrite, and DeepSource. History In 2003, Ben Uretsky and Moisey Uretsky, who founded the ServerStack, a managed hosting business, wanted to create a new product which would combine web hosting and virtual servers and target entrepreneurial with software developers. In 2012, the Uretskys met co-founder Mitch Wainer following Wainer's response to a Craigslist job listing. Mitch Wainer company launched their beta product in January 2012. In mid-2012, the fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skytap
Skytap, Inc. is a private company based in Seattle, Washington offering a public service for cloud computing. Skytap provides self-service access to environments for learning, developing, testing, training, and running enterprise applications. The company was founded as Illumita in 2006 and renamed in 200Skytapis also offered bIBMto enable enterprises to migrate and modernize their core business applications. History Illumita was founded by Brian Bershad, Hank Levy, and Steve Gribble, a trio of University of Washington professors who had done research on virtualization and cloud computing, and by graduate student David Richardson. Illumita changed its name to Skytap in 2008, and launched its first product, Skytap Virtual Lab, in April of the same year. Skytap received early funding from the Washington Research Foundation. As of 2011, the organization is funded by Insight Venture Partners, the Madrona Venture Group, Ignition Partners, Bezos Expeditions, and OpenView Venture Partne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rackspace
Rackspace Technology, Inc. is an American cloud computing company based in Windcrest, Texas, an inner suburb of San Antonio, Texas. The company also has offices in Blacksburg, Virginia, and Austin, Texas, as well as in Australia, Canada, United Kingdom, India, Dubai, Switzerland, the Netherlands, Germany, Singapore, Mexico, and Hong Kong. Its data centers are located in Amsterdam (Netherlands), Virginia (USA), Chicago (USA), Dallas (USA), London (UK), Frankfurt (Germany), Hong Hong (China), Kansas City (USA), New York City (USA), San Jose (USA), Shanghai (China), Queenstown (Singapore), and Sydney (Australia). History Although the founders began as application developers for end-users, they found that most companies did not either know how or want to host their applications. The founders wanted to focus on application development–not hosting–but they were unable to find an opportunity to outsource the hosting work. Eventually, the founders realized that it would be better ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OpenStack
OpenStack is a free, open standard cloud computing platform. It is mostly deployed as infrastructure-as-a-service (IaaS) in both public and private clouds where virtual servers and other resources are made available to users. The software platform consists of interrelated components that control diverse, multi-vendor hardware pools of processing, storage, and networking resources throughout a data center. Users manage it either through a web-based dashboard, through command-line tools, or through RESTful web services. OpenStack began in 2010 as a joint project of Rackspace Hosting and NASA. , it was managed by the OpenStack Foundation, a non-profit corporate entity established in September 2012 to promote OpenStack software and its community. By 2018, more than 500 companies had joined the project. In 2020 the foundation announced it would be renamed the Open Infrastructure Foundation in 2021. History In July 2010, Rackspace Hosting and NASA announced an open-source cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microsoft Azure Web Sites
Azure Web Apps is a cloud computing based platform for hosting websites, created and operated by Microsoft. It is a platform as a service (PaaS) which allows publishing Web apps running on multiple frameworks and written in different programming languages ( .NET, node.js, PHP, Python and Java), including Microsoft proprietary ones and 3rd party ones. Microsoft Azure Web Sites became available in its first preview version in June 2012, and an official version ("General Availability") was announced in June 2013. Microsoft Azure Web Sites was originally named Windows Azure Web Sites, but was renamed as part of a re-branding move across Azure in March 2014. It was subsequently renamed "App Service" in March 2015. History Microsoft initially offered a basic web hosting service as part of Office Live Small Business, which was launched in late 2007. Office Live Small Business offered customers free and commercial web hosting with a built-in system for creating websites based on built ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IBM Cloud Computing
IBM cloud computing is a set of cloud computing services for business offered by the information technology company IBM. IBM Cloud includes infrastructure as a service (IaaS), software as a service (SaaS) and platform as a service (PaaS) offered through public, private and hybrid cloud delivery models, in addition to the components that make up those clouds. Overview IBM offers three hardware platforms for cloud computing. These platforms offer built-in support for virtualization. IBM also offers a virtualization application infrastructure, Websphere, which supports programming models and open standards for virtualization. The management layer of the IBM cloud framework includes IBM Tivoli middleware. Management tools provide capabilities to regulate images with automated provisioning and de-provisioning, monitor operations and meter usage while tracking costs and allocating billing. The last layer of the framework provides integrated workload tools. Workloads (in the co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HP Converged Cloud
HP Cloud was a set of cloud computing services available from Hewlett-Packard that offered public cloud, private cloud, hybrid cloud, managed private cloud and other cloud services. It was the combination of the previous HP Converged Cloud business unitJackson, Joab. "HP launches converged cloud business unit," Computerworld. January 14, 201/ref> and HP Cloud Services, an OpenStack-based public cloud. It was marketed to enterprise organizations to combine public cloud services with internal IT resources to create hybrid clouds, or a mix of private and public cloud environments, from around 2011 until 2016. History HP Converged Cloud was announced in April 2012. HP Converged Cloud is managed under a Hewlett-Packard business unit established in 2013 named The Converged Cloud unit, headed by Saar Gillai as Senior Vice President and general manager of Converged Cloud. HP Public Cloud was announced on March 14, 2011, and launched as a public beta on May 10, 2012. HP Fellow and M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Object Storage
Object storage (also known as object-based storage) is a computer data storage that manages data as objects, as opposed to other storage architectures like file systems which manages data as a file hierarchy, and block storage which manages data as blocks within sectors and tracks. Each object typically includes the data itself, a variable amount of metadata, and a globally unique identifier. Object storage can be implemented at multiple levels, including the device level (object-storage device), the system level, and the interface level. In each case, object storage seeks to enable capabilities not addressed by other storage architectures, like interfaces that are directly programmable by the application, a namespace that can span multiple instances of physical hardware, and data-management functions like data replication and data distribution at object-level granularity. Object storage systems allow retention of massive amounts of unstructured data in which data is written once an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elasticity (cloud Computing)
In cloud computing, elasticity is defined as "the degree to which a system is able to adapt to workload changes by provisioning and de-provisioning resources in an autonomic manner, such that at each point in time the available resources match the current demand as closely as possible". Elasticity is a defining characteristic that differentiates cloud computing from previously proposed computing paradigms, such as grid computing. The dynamic adaptation of capacity, e.g., by altering the use of computing resources, to meet a varying workload is called "elastic computing". Example Let us illustrate elasticity through a simple example of a service provider who wants to run a website on an IaaS cloud. At moment t_0, the website is unpopular and a single machine (most commonly a virtual machine) is sufficient to serve all web users. At moment t_1, the website suddenly becomes popular, for example, as a result of a flash crowd, and a single machine is no longer sufficient to serve all us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Software-defined Storage
Software-defined storage (SDS) is a marketing term for computer data storage software for policy-based provisioning and management of data storage independent of the underlying hardware. Software-defined storage typically includes a form of storage virtualization to separate the storage hardware from the software that manages it. The software enabling a software-defined storage environment may also provide policy management for features such as data deduplication, replication, thin provisioning, snapshots and backup. Software-defined storage (SDS) hardware may or may not also have abstraction, pooling, or automation software of its own. When implemented as software only in conjunction with commodity servers with internal disks, it may suggest software such as a virtual or global file system. If it is software layered over sophisticated large storage arrays, it suggests software such as storage virtualization or storage resource management, categories of products that address se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hadoop Distributed Filesystem
Apache Hadoop () is a collection of open-source software utilities that facilitates using a network of many computers to solve problems involving massive amounts of data and computation. It provides a software framework for distributed storage and processing of big data using the MapReduce programming model. Hadoop was originally designed for computer clusters built from commodity hardware, which is still the common use. It has since also found use on clusters of higher-end hardware. All the modules in Hadoop are designed with a fundamental assumption that hardware failures are common occurrences and should be automatically handled by the framework. The core of Apache Hadoop consists of a storage part, known as Hadoop Distributed File System (HDFS), and a processing part which is a MapReduce programming model. Hadoop splits files into large blocks and distributes them across nodes in a cluster. It then transfers packaged code into nodes to process the data in parallel. This ap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
