Grid Computing — page 3 of 3

Grid Computing terms

201. SMP (Symmetric Multiprocessing) A computer architecture that utilizes multiple CPUs to complete individual processes simultaneously.
202. SOA (Service-Oriented Architecture) Principles and practices for sharing, reusing, and orchestrating business logic represented as services or components.
203. SOAP SOAP provides a standard, extensible, composable framework for packaging and exchanging XML messages between a service provider and a service requester.
204. SOAP (Simple Object Access Protocol) Simple Object Access Protocol is a means of sending messages between a service requester and provider.
205. Software Provisioning Installing, configuring, and making software available for applications and users.
206. SSL/TLS (Secure Socket Layer / Transport Layer Security) Secure Socket Layer / Transport Layer Security is a security protocol that provides communication privacy.
207. standalone container A simple HTTP server that passes requests to the SOAP engine and it can only serve .wsdl and .xsd files.
208. Storage Element A physical grid component that is a storage component, such as a disk or array. See also: Grid Component
209. Storage Provisioning The allocation of storage for use for applications (including databases) and users.
210. stream mode (MODE S) The only mode normally implemented for FTP is MODE S. This is simply sending each byte, one after another over the socket in order, with no application…
211. striping When speaking about GridFTP transfers, striping refers to having multiple network endpoints at the source, destination, or both participating in the…
212. subscription aggregator source An aggregator source (included in WS MDS) that collects data from a WSRF service via WSRF subscription/notification.
213. superuser do (sudo) Allows a system administrator to give certain users (or groups of users) the ability to run some (or all) commands as root or another user while logging…
214. target name The address or location of a copy of a data item on a storage system.
215. Technical Enterprise Applications A class of enterprise application which usually exhibits some of the following attributes - Often highly parallel Heavily batch oriented.
216. third party transfers In the simplest terms, a third party transfer moves a file between two GridFTP servers. The following is a more detailed, programmatic description.
217. TLS (Transport Layer Security) A protocol that provides communications privacy and security between two applications communicating over a network.
218. transport-level security Uses transport-level security (TLS) mechanisms.
219. Trigger Service An aggregator service (in WS MDS) that collects information and compares that data against a set of conditions defined in a configuration file.
220. trusted CAs directory The directory containing the CA certificates and signing policy files of the CAs trusted by GSI.
221. UDDI (Universal Description Discovery and Integration) Universal Description Discovery and Integration is a standard to use Web Services across various systems, including .NET and J2EE-based solutions.
222. Universally Unique Identifier (UUID) Identifier that is immutable and unique across time and space.
223. URL (Universal Resource Locator) A Universal Resource Locator is the address that translates to a TCP/IP address in order to access resources in the Internet.
224. user certificate A EEC belonging to a user. When using GSI, this certificate is typically stored in $HOME/.globus/usercert.pem.
225. user credentials The combination of a user certificate and its corresponding private key.
226. utility computing While utility computing often requires a cloud-like infrastructure, its focus is on the business model on which providing the computing services are based.
227. Utility Data Center An infrastructure solution proposed by HP that allows virtualization of computing resources for the data center.
228. Vertical Scaling See Scale Up.
229. Virtualization A feature that allows standard users to run applications that normally write to per-computer files and registry keys.
230. VMM (Virtual Machine Monitor) A layer of software or firmware/microcode that sits between one or more operating systems and a server.
231. VO (Virtual Organization) A virtual entity whose users and servers are geographically apart but share their resources collectively as a larger grid.
232. VPN (Virtual Private Network) A secure network that is constructed by using public wires to connect nodes. For example, there are a number of systems that enable creation of networks…
233. W3C (World Wide Web Consortium) The World Wide Web Consortium is an independent work group formed in 1994 thatprovides standards like XML.
234. Web Service A Web service is a software system designed to support interoperable machine-to-machine interaction over a network.
235. Web Services Protocols that enable computers to work together by exchanging messages. Web services are based on the standard protocols of XML, SOAP and WSDL, which…
236. Web Services Addressing (WSA) The WS-Addressing specification defines transport-neutral mechanisms to address web services and messages.
237. Web Services Deployment Descriptor (WSDD) An Axis XML-based configuration file.
238. Web Services Description Language (WSDL) (WSDL) A language used to describe the actions that a web service can perform, along with the syntax of action requests and responses.
239. Web Services Description Language for Java Toolkit (WSDL4j) WSDL4J allows the creation, representation, and manipulation of WSDL documents. For more information, see http://www-136.ibm.com/developerworks/opensource.
240. Web Services Interoperability Basic Profile (WS-I Basic Profile) The WS-I Basic Profile specification is a set of recommendations on how to use the different web services specifications such as SOAP, WSDL, etc.
241. Web Services Invocation Framework (WSIF) For more information, see http://ws.apache.org/wsif/.
242. Web Services Notification (WSN) The WS-Notification family of specifications define a pattern-based approach to allowing Web services to disseminate information to one another.
243. Web Services Resource Framework (WSRF) Web Services Resource Framework (WSRF) is a specification that extends web services for grid applications by giving them the ability to retain state…
244. WebMDS In WS MDS, WebMDS is a web-based interface to WSRF resource property information that can be used as a user-friendly front-end to the Index Service or…
245. Workload Balancing Distributing the workload across multiple systems to optimize system usage and response time for the user.
246. WSA (Web Services Architecture) The Web Services Architecture is a standardized approach based on SOAP and WSDL to develop Web Service solutions.
247. WSDL (Web Services Description Language) Web Services Description Language is a mechanism for representing the services that a provider has and is making available and the specifics for accessing…
248. WSFL (Web Services Flow Language) The Web Services Flow Language addresses flows and dependencies between services.
249. WSIL (Web Services Inspection Language) Web Services Inspection Language is a means for discovering the WSDL-described services that a provider has made available.
250. Xalan XSLT stylesheet processor. For more information, see http://xml.apache.org/xalan-j/
251. Xerces Advanced parsing. For more information, see http://xerces.apache.org/xerces-j/.
252. Xindice Native XML database. For more information, see http://xml.apache.org/xindice/.
253. XML See Extensible Markup Language.
254. XML (Extensible Markup Language) A markup language that enables users to tag data in order to delimit it, leaving the interpretation of the data to the applications that read it.
255. XML Path Language (XPath) XPath is a language for finding information in an XML document. XPath is used to navigate through elements and attributes in an XML document.
256. XML-APIs For more information, see http://www.apache.org.
257. XML-RPC For more information, see http://www.apache.org.
258. XML::DB Provides an XML persistance layer using the postgresql database. For more information, see http://xmldb.sourceforge.net/.
259. XMLSec For more information, see http://www.apache.org.