Grid Computing — page 2 of 3

259 terms

Grid Computing terms

  1. Hawkeye A monitoring service for Condor Pools. See http://www.cs.wisc.edu/condor/hawkeye/.
  2. Homeostasis (HOH-mee-oh-STAY-sis) A state of balance among all the body systems needed for the body to survive and function correctly.
  3. Horizontal Scaling See Scale Out
  4. host certificate An EEC belonging to a host. When using GSI this certificate is typically stored in /etc/grid-security/hostcert.pem.
  5. host credentials The combination of a host certificate and its corresponding private key.
  6. hosting environment See container.
  7. IEEE (Institute of Electrical and Electronics Engineers) The Institute of Electrical and Electronics Engineers is a professional society accredited by the American National Standards Institute (ANSI) to issue…
  8. IESG (Internet Engineering Steering Group) The Internet Engineering Steering Group is the executive committee of the Internet Engineering Task Force (IETF).
  9. IETF (Internet Engineering Task Force) An open community of network designers, operators, vendors, and researchers concerned with the evolution of Internet architecture and the smooth operation…
  10. Index Service An aggregator service in WS MDS that serves as a registry similar to UDDI, but much more flexible.
  11. InfiniBand InfiniBand is the next generation switch fabric architecture that enables increased network bandwidth (10Gbps), redundant connectivity support, shared…
  12. information provider A "helper" software component that collects or formats resource information, for use in WS MDS by an aggregator source or by a WSRF service when creating…
  13. ISV (Independent Software Vendor) An Independent Software Vendor is an enterprise offering software solutions.
  14. ITS (Integrated Technology Services) Integrated Technology Services is a sub division of IBM Global Services providing technical support services for IBM and non-IBM platforms and products.
  15. J2EE (Java 2 Enterprise Edition) Java 2 Enterprise Edition is the second version of the platform definition for advanced Java applications built on Enterprise Java Beans (EJB).
  16. Java Virtual Machine (JVM) The Java Runtime under which OGSI modules run.
  17. Javadocs Java-generated documentation files. The Globus Toolkit distribution uses this tool to automatically generate API documentation from the code itself.
  18. JAX-RPC http://www.apache.org (re: what in GT?)
  19. JNDI Java Naming and Directory Interface (JNDI) API are used to access a central transient container registry.
  20. jndi-config.xml It is an XML-based configuration file used to populate the container registry accessible via the JNDI API.
  21. job description Term used to describe a GRAM4 job for GT4.
  22. job scheduler See the term scheduler.
  23. JUnit Java testing framework.
  24. LDAP (Lightweight Directory Access Protocol) Enables LDAP clients to access directory information from an Exchange directory. [Exchange 5.5]
  25. Libtool Libtool is a GNU library support script that abstracts shared library interface. Used by GSI/Sysconfig.
  26. Local Replica Catalog (LRC) Stores mappings between logical names for data items and the target names (often the physical locations) of replicas of those items.
  27. Log4J http://www.apache.org (re: what in gt4?)
  28. logical file name A unique identifier for the contents of a file.
  29. logical name A case-sensitive unique string within an AWS CloudFormation template that identifies a resource, mapping, parameter, or output.
  30. LSF A job scheduler mechanism supported by GRAM. For more information, see http://www.platform.com/Products/Platform.LSF.Family/Platform.LSF/.
  31. Message Passing Interface (MPI) The Message Passing Interface (MPI) is a library specification for message-passing, proposed as a standard by a broadly based committee of vendors…
  32. metascheduler A program that typically operates at a higher level than a job scheduler (typically, above the GRAM level). It schedules and submits jobs to GRAM services.
  33. MMJS subjob One of the executable jobs in a multijob rendezvous.
  34. MODE command In reality, GridFTP is not one protocol, but a collection of several protocols.
  35. MPI (The Message Passing Interface) The Message Passing Interface is an application interface allowing formatted messages to enter and leave an application.
  36. multijob A job that is itself composed of several executable jobs; these are processed by the MMJS subjob. See also MMJS subjob.
  37. multijob rendezvous A mechanism used by GRAM to synchronize between job processes in a multiprocess job and between.
  38. N1 Sun's architecture for the next -generation data center. The architecture is designed to make the entire data center behave as a single, unified system.
  39. NAS (Network Attached Storage) NAS provides storage resources to servers and workstations over a shared or dedicated network.
  40. NCSA (The National Center for Supercomputing Applications) The National Center for Supercomputing Applications is a US government institution for supercomputing.
  41. Network Element The components of a network in ARC/INFO, including network links and network nodes, of which there are three types: stops, centers, and turns.
  42. network end points A network endpoint is generally something that has an IP address (a network interface card).
  43. Network File System (NFS) The Network File System (NFS) protocol allows a given computer to access a disk on another computer over a network in a transparent fashion.
  44. NFS (Networked File System) A Networked File System is a mountable networked file system.
  45. node Any device connected to network. PCs, servers, and printers are all nodes on the network.
  46. NTP (Network Time Protocol) A Network Time Protocol server keeps the time on the network.
  47. OASIS (Organization for the Advancement of Structure Information Standards) The Organization for the Advancement of Structure Information Standards is an industry consortium promoting XML, TCP/IP, and UDDI.
  48. ODN (Open Data Network) An Open Data Network is capable of carrying all kinds of services for all kind of users from all kind of providers, for example, telephone or computer…
  49. OGSA (Open Grid Services Architecture) The Open Grid Services Architecture is a standard setting the base for communication in grids across virtual organizations.
  50. On Demand Business IBM marketing term that denotes a company whose business processes - integrated end-to-end across the company and with key partners, suppliers and…
  51. OpenJMS http://www.exolab.org/ (re: what in gt4?)
  52. OpenLDAP http://www.openldap.org Open Source Lightweight Directory Access Protocol in the C Language. h
  53. OpenSSL SSL implementation used by GSI. Stands for Open Source Secure Sockets Layer. Distribution in the C Language. For more information, see http://www.openssl.
  54. operation provider A reusable Java component that implements one or more web service functions. A web service can be composed of one or more operation providers.
  55. parallelism When speaking about GridFTP transfers, parallelism refers to having multiple TCP connections between a single pair of network endpoints.
  56. physical file name The address or the location of a copy of a file on a storage system.
  57. Policy-based Management A method of managing system behavior or resources by setting "policies" (often in the form of "if-then" rules) that the system interprets.
  58. Pooling Combining of assets of different entities, i.e., two or more counties, for efficient investment purposes while maintaining separate accounting trails.
  59. Portable Batch System (PBS) A job scheduler mechanism supported by GRAM. For more information, see http://www.openpbs.org.
  60. private key In secure communication, an algorithmic pattern used to encrypt messages that only the corresponding public key can decrypt.
  61. Project eLiza An initiative launched by IBM in April 2001 to integrate autonomic capabilities into its products and services, including servers, storage, middleware…
  62. Provisioning Provisioning is the act of putting a grid component into the active state so that it is available to a consumer of the service or resource it supplies.
  63. proxy certificate A short lived certificate issued using a EEC. A proxy certificate typically has the same effective subject as the EEC that issued it and can thus be used…
  64. proxy credentials The combination of a proxy certificate and its corresponding private key. GSI typically stores proxy credentials in /tmp/x509up_u<uid> , where <uid> is…
  65. public key An encryption key associated with a Notes ID that is used to verify an electronic signature, encrypt a message, or identify an authenticating user.
  66. PureTLS http://www.rtfm.com/puretls/
  67. QoS (Quality of Service) A term used in a Service Level Agreement (SLA) denoting a guaranteed level of performance (e.g., response times less than 1 second).
  68. query aggregator source An aggregator source (included in WS MDS) that polls a WSRF service for resource property information.
  69. RA (Registrant Authority) A Registrant Authority works in conjunction with the Certificate Authority (CA) approving or rejecting requests for certificates of public keys.
  70. RAID (Redundant Array of Independent Disks) A method of accessing multiple individual disks as if the array were one larger disk, spreading data access out over these multiple disks.
  71. RAID (Redundant Arrays of Independent Disks) A way of storing the same data in different places on multiple hard disks. Storing data on multiple disks can improve performance by balancing input and…
  72. Replica Location Index (RLI) Collects information about the logical name mappings stored in one or more Local Replica Catalogs (LRCs) and answers queries about those mappings.
  73. Replica Location Service (RLS) A distributed registry that keeps track of where replicas exist on physical storage systems.
  74. resource Data, metadata, a collection of data, or a collection of metadata accessed as a content item. Examples: a document, a database table, a content class.
  75. resource properties A resource is composed of zero or more resource properties which describe the resource.
  76. Resource Specification Language (RSL) Term used to describe a GRAM job for GT2 and GT3. (Note: This is not the same as RLS - the Replica Location Service)
  77. ResourceHome In Java WS Core, resources are managed and discovered via ResourceHome implementations.
  78. RLS attribute Descriptive information that may be associated with a logical or target name mapping registered in a Local Replica Catalog (LRC).
  79. SAAJ For more information, see http://www.apache.org.
  80. SAN (Storage Area Network) A high-speed subnetwork of shared storage devices. A storage device is a machine that contains nothing but a disc or discs for storing data.
  81. SASL See definition for: Simple Authentication and Security Layer (SASL)
  82. Scale Out Scale Out is the term usually applied to scaling an application or service through the use of multiple service component instances, which typically…
  83. Scale Up Conversion of a process, such as fermentation of a micro-organism, from a small laboratory scale to a larger industrial scale.
  84. scheduler Term used to describe a job scheduler mechanism to which GRAM interfaces. It is a networked system for submitting, controlling, and monitoring the…
  85. scheduler adapter The interface used by GRAM to communicate/interact with a job scheduler mechanism. In GT 4.x, this is both the perl submission scripts and the SEG program.
  86. Scheduler Event Generator (SEG) The Scheduler Event Generator (SEG) is a program which uses scheduler-specific monitoring modules to generate job state change events.
  87. Secure Interface The physical layer connection between a gateway and a secure network.
  88. Secure Network A logical portion of a network that client computers can access if they either meet corporate health policy or are exempt from meeting corporate health…
  89. Server Any computer on a network that contains data or applications shared by users of the network on their client PCs.
  90. Server Provisioning The allocation of servers for use for application software and users.
  91. server-config.wsdd Axis server-side WSDD configuration file. It contains information about the services, the type mappings and various handlers.
  92. Service See Services
  93. service certificate A EEC for a specific service (e.g. FTP or LDAP). When using GSI this certificate is typically stored in /etc/grid-security/<service>/<service>cert.pem.
  94. Service Characterization The process by which the composition or pattern of a service and the relationships with its dependencies is derived.
  95. service credentials The combination of a service certificate and its corresponding private key.
  96. Service Level Management Managing system performance (i.e. response time, compute power, storage space) by a contract in which a Service Provider agrees to deliver an agreed-upon…
  97. Service Sizing The process by which the number, performance, scaling, availability and security attributes of grid components is derived.
  98. servlet For more information, see http://www.apache.org.
  99. SLA (Service Level Agreement) is the policy that a Cloud providing company will make to its clients to guarantee how their services will work.
  100. SLO (Service Level Objective) The specific quantifiable and measurable attributes of a service that form the basis of a Service Level Agreement. See also: Service Level Agreement

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