Cloud interoperability remains wispy, but progress being made.
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Cloud computing (1) Running applications in or from network servers. Computing "in the cloud" may refer to a company's own network, but often refers to the Internet and the use of Web browser-based or rich client applications. is supposed to make IT more flexible, efficient and easier to manage. But the cloud model threatens to introduce a whole new layer of complexity, unless vendors and industry groups promote interoperability standards that let cloud networks work together. <p>Vendor competition is a potential impediment, but most major cloud vendors are at least talking about interoperability, including the ability to move workloads from one cloud to another. <p>"So far, it's closer to lip service lip service
Verbal expression of agreement or allegiance, unsupported by real conviction or action; hypocritical respect: , but there are a couple of efforts moving in this direction," says Forrester Research Forrester Research is an independent technology and market research company that provides its clients with advice about technology's impact on business and consumers. Corporate facts
This phrase is used to characterize an officer, a government, a past action, or a state of affairs that must be accepted for all practical purposes, but is illegal or illegitimate. " standards by those who have expressed hope that Amazon will release them as open source software.<p>Many companies are supporting the Open Cloud Manifesto, which intends to establish a set of core principles that all cloud providers should follow. But notable absences include Amazon and Microsoft. <p>Several vendors are attempting to tie together different cloud services in ways that make them easier to use for IT shops, but each effort seems to have some limitation. <p>VMware, for example, is calling its latest virtualization An umbrella term for enhancing a computer's ability to do work. Following are the ways virtualization is used.
Partitioning the computer's memory into separate and isolated "virtual machines" simulates multiple machines within one physical computer. platform a "cloud operating system" and promising that enterprises can use the software to build private clouds and connect them to public computing resources. But the software only works with hardware that has been virtualized using VMware technology, and the cloud interoperability is only possible if the cloud provider is using VMware. The latter condition eliminates such big players as Amazon and Google. <p>The Burton Group analyst firm has partnered with vendors to demonstrate single sign-on across real-world applications such as Salesforce.com, Google Apps and Cisco's WebEx, using tools based on standards such as SAML (Security Assertion Markup Language) An XML-based format from OASIS for exchanging security information for single sign-on. The "assertions" are statements from a SAML authority that authenticate a user, confirm some attribute about the individual and grant or and WS-Federation. <p>"We're hearing from our clients that many of the applications are moving off premises and into the cloud, and it's putting a strain onto attempts to present as few authentications to users as possible," says Burton Group analyst Gerry Gebel. <p>Cloud application vendors will have to adopt a standards-based approach to make single sign-on ubiquitous, Gebel says. While he is optimistic that most vendors will come on board, he says the list of vendors following the standards-based approach is probably shorter than the list of those that are not. <p>In another interoperability effort, the vendor AppZero has created virtual appliances that allow the movement of server-based applications from private data centers to public clouds, and from one cloud to another, such as from Amazon Web Services This article or section is written like an .
Please help [ rewrite this article] from a neutral point of view.
Mark blatant advertising for , using . to GoGrid. <p>Rival vendor 3Tera says this approach doesn't account for multi-tier applications that span many virtual machines. 3Tera says it encapsulates all the components of an application, including firewall, load balancer, Web and application servers, databases and operating system into one entity that can be easily moved from one cloud to another. But this portability only works if each cloud was built using the 3tera platform. <p>"The problem right now is there is no interoperability among any clouds," says Bert Armijo, senior vice president of sales and product marketing for 3Tera. Say you write an application specifically for Amazon's Elastic Compute Cloud. Since the code is written specifically for Amazon's platform, "that application is going nowhere," Armijo adds. <p>Going forward, vendors will have to agree upon a "common set of standards and interfaces" to ensure true interoperability, says IBM cloud computing software chief Kristof Kloeckner. <p>"In cloud terms, there are some services you receive through a service provider, some services you deliver through an internal cloud, and some that you normally deliver with an internal cloud but you may want overflow capacity for peak times," Kloeckner says. "All this movement of services, applications, and combination of applications only works if all the providers adhere to a common set of standards and interfaces." But today, most public compute clouds are based on virtual machine models that aren't compatible with each other, Kloeckner says. <p>Mark O'Neill, the CTO (Chief Technical Officer) The executive responsible for the technical direction of an organization. See CIO and salary survey. of Vordel, says enterprises should be able to use a best-of-breed cloud approach, having applications that span different providers of storage, compute and application hosting platforms. <p>"Vordel often speaks with customers wishing to make use of best-of-breed cloud services -- for example using Amazon for external storage (the S3 service) while using Force.com to pull customer order information into behind-the-firewall applications," ONeill writes in an e-mail. "Key issues are allowing single sign-on across cloud services, for the same application, as well allowing a service running one cloud platform (e.g. a hosted application on Amazon Elastic Compute Cloud This article or section needs sources or references that appear in reliable, third-party publications. Alone, primary sources and sources affiliated with the subject of this article are not sufficient for an accurate encyclopedia article. ) to call a service hosted by another cloud provider (e.g. Google) in a managed manner." <p>Vordel's XML XML
in full Extensible Markup Language.
Markup language developed to be a simplified and more structural version of SGML. It incorporates features of HTML (e.g., hypertext linking), but is designed to overcome some of HTML's limitations. Gateway is designed to link single applications to multiple cloud services and provide the single-sign on capability mentioned by O'Neill, all without requiring onerous work on the part of developers. <p>While Vordel's offering is likely useful for many types of customers, O'Neill says his company hasn't tackled the challenge of trying to move applications from one cloud to another, saying "generally that's an unsolved problem across the board." <p>But there is room for optimism, says Robert Grossman, chairman of the newly formed Open Cloud Consortium and director of the Laboratory for Advanced Computing (LAC) and the National Center for Data Mining The National Center for Data Mining (NCDM) at the University of Illinois at Chicago (UIC) was established in 1998 to serve as a resource for research, standards development, and outreach for high performance and distributed data mining and predictive modeling. (NCDM NCDM National Center for Database Marketing
NCDM National Center for Data Mining ) at the University of Illinois at Chicago This article is about the University of Illinois at Chicago. For other uses, see University of Illinois at Chicago (disambiguation).
UIC participates in NCAA Division I Horizon League competition as the UIC Flames in several sports, most notably Basketball. . <p>Grossman says enterprises with private clouds should be able to obtain extra computing resources from any public cloud without changing the API. Even today, the open source Eucalyptus private cloud software is largely compatible with the Amazon API, making it easy to get excess capacity from the Amazon cloud, Grossman says. "If I use Eucalyptus in-house and engineer the application correctly, I can get surge capacity form Amazon," he says. <p>Moving workloads from one public cloud to another is more difficult because that requires standardized management tools, he says. Exchanging data between clouds is another problem. Just as TCP (1) (Transmission Control Protocol) The reliable transport protocol within the TCP/IP protocol suite. TCP ensures that all data arrive accurately and 100% intact at the other end. allows the bridging of two networks, Grossman says he'd like to see an inter-cloud protocol allowing multiple clouds to exchange information. <p>"People are still trying to their hands around some of the issues," Grossman says. "What we have is a very young, very vibrant, rapidly moving industry that is still sort of sorting itself out," Grossman says. "I think things are trending in the right direction."<p>Copyright 2009 IDG IDG International Data Group
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