Glossary

Glossary TermGlossary Definition
active-active high availability system

A system in which all the available members can service requests, and no member is idle. An active-active system generally provides more scalability options than an active-passive system. Contrast with active-passive high availability system.

active-passive high availability system

A system with active members, which are always servicing requests, and passive members that are activated only when an active member fails. Contrast with active-active high availability system.

application server cluster

A loosely joined group of application servers running simultaneously, working together for reliability and scalability, and appearing to users as one application server instance. See also vertical application cluster and horizontal application cluster.

assemblies

Installation files for EPM System products or components.

asymmetric topology

An Oracle Fusion Middleware Disaster Recovery configuration that is different across tiers on the production site and standby site. For example, an asymmetric topology can include a standby site with fewer hosts and instances than the production site.

backup

A duplicate copy of an application instance.

cluster

An array of servers or databases that behave as a single resource which share task loads and provide failover support; eliminates one server or database as a single point of failure in a system.

cluster interconnect

A private link used by a hardware cluster for heartbeat information, to detect node failure.

cluster services

Software that manages cluster member operations as a system. With cluster services, you can define a set of resources and services to monitor through a heartbeat mechanism between cluster members and to move these resources and services to a different cluster member as efficiently and transparently as possible.

Disaster Recovery

The ability to safeguard against natural or unplanned outages at a production site by having a recovery strategy for applications and data to a geographically separate standby site.

EPM Oracle home

A subdirectory of Middleware home containing the files required by EPM System products. The EPM Oracle home location is specified during installation with EPM System Installer.

EPM Oracle instance

A directory containing active, dynamic components of EPM System products (components that can change during run-time). You define the EPM Oracle instance directory location during configuration with EPM System Configurator.

external authentication

Logging on to Oracle EPM System products with user information stored outside the application. The user account is maintained by the EPM System, but password administration and user authentication are performed by an external service, using a corporate directory such as Oracle Internet Directory (OID) or Microsoft Active Directory (MSAD).

failover

The ability to switch automatically to a redundant standby database, server, or network if the primary database, server, or network fails or is shut down. A system that is clustered for failover provides high availability and fault tolerance through server redundancy and fault-tolerant hardware, such as shared disks.

hardware cluster

a collection of computers that provides a single view of network services (for example, an IP address) or application services (such as databases and Web servers) to clients of these services. Each node in a hardware cluster is a standalone server that runs its own processes. These processes can communicate with one another to form what looks like a single system that cooperatively provides applications, system resources, and data to users.

high availability

A system attribute that enables an application to continue to provide services in the presence of failures. This is achieved through removal of single points of failure, with fault-tolerant hardware, as well as server clusters; if one server fails, processing requests are routed to another server.

horizontal application server cluster

A cluster with application server instances on different machines.

identity

A unique identification for a user or group in external authentication.

installation assemblies

Product installation files that plug in to EPM System Installer.

Java application server cluster

An active-active application server cluster of Java Virtual Machines (JVMs).

lifecycle management

The process of migrating an application, a repository, or individual artifacts across product environments.

load balancer

Hardware or software that directs the requests to individual application servers in a cluster and is the only point of entry into the system.

load balancing

Distribution of requests across a group of servers, which helps to ensure optimal end user performance.

locale

A computer setting that specifies a location's language, currency and date formatting, data sort order, and the character set encoding used on the computer. Essbase uses only the encoding portion. See also encoding, ESSLANG.

logical Web application

An aliased reference used to identify the internal host name, port, and context of a Web application. In a clustered or high-availability environment, this is the alias name that establishes a single internal reference for the distributed components. In EPM System, a nonclustered logical Web application defaults to the physical host running the Web application.

managed server

An application server process running in its own Java Virtual Machine (JVM).

Middleware home

A directory that includes the Oracle WebLogic Server home and can also include the EPM Oracle home and other Oracle homes. A Middleware home can reside on a local file system or on a remote shared disk that is accessible through NFS.

migration

The process of copying applications, artifacts, or users from one environment or computer to another; for example, from a testing environment to a production environment.

migration log

A log file that captures all application migration actions and messages.

migration snapshot

A snapshot of an application migration that is captured in the migration log.

native authentication

The process of authenticating a user name and password from within the server or application.

Oracle home

A directory containing the installed files required by a specific product, and residing within the directory structure of Middleware home. See also Middleware home.

permission

A level of access granted to users and groups for managing data or other users and groups.

provisioning

The process of granting users and groups specific access permissions to resources.

proxy server

A server acting as an intermediary between workstation users and the Internet to ensure security.

relational database

A type of database that stores data in related two-dimensional tables. Contrast with multidimensional database.

repository

Storage location for metadata, formatting, and annotation information for views and queries.

restore

An operation to reload data and structural information after a database has been damaged or destroyed, typically performed after shutting down and restarting the database.

role

The means by which access permissions are granted to users and groups for resources.

security agent

A Web access management provider (for example, Oracle Access Manager, Oracle Single Sign-On, or CA SiteMinder) that protects corporate Web resources.

security platform

A framework enabling Oracle EPM System products to use external authentication and single sign-on.

shared disks

See shared storage.

Shared Services Registry

The part of the Shared Services repository that manages EPM System deployment information for most EPM System products, including installation directories, database settings, computer names, ports, servers, URLs, and dependent service data.

shared storage

A set of disks containing data that must be available to all nodes of a failover cluster; also called shared disks.

silent response files

Files providing data that an installation administrator would otherwise be required to provide. Response files enable EPM System Installer or EPM System Configurator to run without user intervention or input.

single point of failure

Any component in a system that, if it fails, prevents users from accessing the normal functionality.

single sign-on (SSO)

The ability to log on once and then access multiple applications without being prompted again for authentication.

symmetric topology

An Oracle Fusion Middleware Disaster Recovery configuration that is identical across tiers on the production site and standby site. In a symmetric topology, the production site and standby site have the identical number of hosts, load balancers, instances, and applications. The same ports are used for both sites. The systems are configured identically and the applications access the same data.

token

An encrypted identification of one valid user or group on an external authentication system.

upgrade

The process of deploying a new software release and moving applications, data, and provisioning information from an earlier deployment to the new deployment.

user directory

A centralized location for user and group information, also known as a repository or provider. Popular user directories include Oracle Internet Directory (OID), Microsoft Active Directory (MSAD), and Sun Java System Directory Server.

vertical application server cluster

A cluster with multiple application server instances on the same machine.

WebLogic Server home

A subdirectory of Middleware home containing installed files required by a WebLogic Server instance. WebLogic Server home is a peer of Oracle homes.