the characteristic of having independent, alternative routes available for data communications in the event of failure of a primary connection.
unnecessary duplication of data.
A process built into the system that allows for the failure of one or more components to occur but does not reduce the system's functionality.
The use of more components than are needed to perform a function; this can enable a system to operate properly despite failed components.
Having one or more backup systems available in case the primary system fails.
(1) Duplicate standby equipment or facilities that are activated to insure continuous service or minimize the effect of equipment malfunctions.
A technique for avoiding failure by putting backup systems in place that can take over if a primary system fails. For example, many redundant systems are used on the space shuttle to protect the crew if a primary system fails.
Alternative and/or duplicate transmission paths, routes, equipment and power in various combinations to enhance the reliability of a telecommunications infrastructure.
In data transmission the portion of a message's gross information content that can be eliminated without losing essential information also, duplicate facilities.
1) Portion of the total information contained in a message that can be eliminated without loss of essential information. 2) Provision of duplicate, backup equipment or links to immediately take over the function of equipment or transmission lines that fail.
Capability to continue function after failure of primary system
Using more than one system in case one fails
The process of avoiding failure in a system or network by providing additional capacity or building in replacement material or facilities.
A system design that duplicates components to provide alternatives in case one component fails. For example, data centers always have more than one connection to the Internet, so that if one fails the other(s) can take over, to prevent any server downtime.
the unnecessary repetition of words, phrases, or ideas in writing.
Systematic approach to eliminating single points-of-failure in a network or data storage system.
(1) The unnecessary part, or (2) having one or more backup systems to compensate for main system failure.
Any deliberate duplication, or partial duplication, of circuitry or information to decrease the probability of a system or communication failure.
1. In internetworking, the duplication of devices, services, or connections so that, in the event of a failure, the redundant devices, services, or connections can perform the work of those that failed. See also redundant system. 2. In telephony, the portion of the total information contained in a message that can be eliminated without loss of essential information or meaning.
Where a system has been designed to eliminate single points of failure, redundant CIs are those which can fail without affecting the delivery of service. However, generally, once a CI has failed, the inherent redundancy will be gone and repair/replacement is required before further failures which would affect the service.
Utilizing multiple access methods so that if one goes down the systems still operate.
(electronics) a system design that duplicates components to provide alternatives in case one component fails
The provision of multiple interchangeable components to perform a single function to cope with failures or errors. Redundancy normally applies to hardware; a common form of hardware redundancy is disk mirroring.
Where you would have one main, and one back up, so that if one device fails, the other can take over without loss of service. Example - SONET equipment can be configured in a redundant manner with two fiber optic routes (in a ring), and duplicates of the electronic cards controlling transmissions.
Duplication of components and connections in a system to reduce or avoid the occurrence of system failures. For example, a redundant Internet connection provides immediate backup in the event that the primary connection fails.
The ability of a system to suffer degradation without altering its state. The ability to withstand perturbation without damage.
Otherwise known as fault-tolerance, in data transmission, this refers to characters and bits that can be removed from a transmission without affecting the message. Ir data processing and data communications, it means providing backup for components: should one of them fail, the system continues to run without operation. Total redundancy is usually impractical, but financial institutions and other organizations with mission-critical applications attempt to install a high level of redundancy on the basis that downtime loses money, lives, depending on the business.
Having back-up systems available to provide continuous service in the case of a failure in the main system.
The existence of more than one means of accomplishing a given task, where all means must fail before there is an overall failure of the system. Parallel redundancy applies to systems in which both means are working at the same time to accomplish the task and either of the systems is capable of handling the job itself in case of failure of the other system. Standby redundancy applies to a system in which there is an alternative means of accomplishing the task that is switched in by malfunction-sensing device when the primary system fails.
By connecting more than one power supply, or using parallel power supplies, a redundancy is created. This means that should one power supply fail, the others can continue to provide power to the load. Redundancy is commonly employed when power supply failure is not an option.
system or network which has for each destination two ways of getting the data transferred. So if a connection doesn't work the other one can be used
Parallel UPS configuration in which several UPS units with equal outputs are parallel connected and share the load. In the event one UPS unit fails, the other units pick up its share without any interruption in the supply of power to the load.
Unnecessary repetition of a word, phrase, or idea
The existence of more than one piece of equipment, any of which could perform a given function. These multiple pieces of equipment are used to help improve the reliability and availability of the system. Redundancy is generally expressed as the number of pieces of equipment required and the total number available. For example, 2 out of 3 means that there are a total of 3 pieces of equipment and 2 pieces are required for proper operation of the system.
The ability to connect units in parallel so that if one fails the other(s) will provide continual power to the load. This mode is used in systems when power failure cannot be tolerated .
A SysMaster feature that allows one SysMaster to take over the function of another, should that device fails.
Redundant information is unnecessary information. Information may be redundant because it is already available elsewhere; for example, within another part of an image, or from an earlier frame of video. Redundant information can be removed from a file to reduce its size. See also noise.
Using more utterances than necessary; includes talking around the subject, unnecessary addition and saying the same thing twice in different ways. In grammar it refers to a grammatical feature which has no functional use, such as the -s inflection for present tense third person singular.
In human resource terms, redundancy can be used to mean the provision of delegates or alternates for key employees or BCM/Crisis Management Team members. See: Backup, Alternate Site.
Serving as a duplicate for preventing failure of an entire system upon failure of a single component.
Means of protecting against system failures by building in equivalent backup systems.
Describes a system where more than one device is used to ensure reliability. For example, a safety PLC that runs its program concurrently on two identical processors is redundant.
The duplication of certain critical components in a space vehicle.
The doubling-up of components, such as power supply or network cards on a server, so that if one fails, the other can take over.
Form of protection against system failures. For example, if you want to be sure that you'll always have power supply, you can set up two power supplies so that one takes over if the other one fails.
The duplication of components in a system so that the secondary components can immediately assume the functions of the primary components in the event of a breakdown.
A provision of duplicate, backup equipment and/or software processes in case of primary equipment or system failure.
Refers to protection against system failures. In data centres, for instance, to ensure servers always have power supply, two power supplies are used so that one takes over if the other one fails
The duplication of resources and hardware on a server used to back up files and maintain service in the event of a failure or ‘crash’ of the primary server system.
In a redundant system, if you lose part of the system, you can continue to operate. For example, if you have two power supplies and one takes over if the...
1) A backup capability, coming either from extra machines or from extra components within a machine, to reduce the effects of breakdowns. 2) The use of one or more extra or duplicating components in a system or equipment (often to increase reliability).
Use of multiple devices or modules to provide continued operation following most failures in a single module device.
Duplication of hardware or data paths which exist to prevent the failure of the active system upon failure of the duplicated component.
The ability of a system of multiple Power Supplies to continue to provide power to a common load if one or more Power Supplies of the system fail. The SMPS should be designed from start to be compatible with a redundant system design. The system designer should specify the level of redundancy for the system ("M" Power Supplies in a system of "N" may fail and the system will still provide adequate power to the load. Of course, MN).
Backup components used to ensure uninterrupted operation of a system in case of a failure.
The duplication of critical components of a system with the intention of increasing reliability of the system.
The connection of multiple converters to provide uninterrupted power to the load in the event of a converter failure.
Having one or more "backup" systems available in case of failure of the main system. [Back to Glossary Table of Contents
Provision of duplicate or backup equipment to operate in case of a failure.
Extra bytes added to data that allows error detection and correction to occur; having backup equipment to ensure the minimal interruption.
Duplicating devices to the extent that if one were to fail there would be an identical unit to replace the failed unit. Often employed in mission critical networking systems as "mirrored" or "redundant" servers where both machines are performing identical tasks. If one of these servers fails, the application will not cease functioning.
Responsive Supply Chains Risk Symptoms
Duplication of elements in a system or installation to enhance the reliability or continuity of operation.
Originally "exceeding what is necessary or normal ;" technically a back - up system which takes over when the prime system fails.
A principle of climbing that builds extra equipment into a system as a backup
Having one or more back up systems
Duplication of service. Networks can provide redundancy to increase the probability that communications can continue despite various failures.
Duplicate equipment that is provided to minimize the effect Reading : The ability to monitor gas, electricity, or water meters over telephone lines, through a distribution network, or by radio link.
Having additional elements, devices, servers, links, and others so that single failures do not cause a complete loss of service.
A duplicate capacity that can be called upon when a failure occurs; having more than one path to a signal point.
The inclusion of extra components of a given type in a system (beyond those required by the system to carry out its function).
A secondary system of backup equipment that performs similarly to a primary system, thereby preventing network downtime and system outages.
Power supplies connected in parallel operation so that if one fails, the others will continue delivering enough current to supply the maximum load. This method is used in applications where power supply failure cannot be tolerated.
the use of two or more stimulus dimensions to code the same information, thereby increasing the probability that the information will be conveyed correctly. Similar to the concept of ‘fail-safe' in engineering, but usually operates in triplicate in a parallel rather than serial fashion. E.g. on emergency vehicles, the use of flashing light and siren together involves redundancy (as only one is strictly necessary to detect and identify the vehicle as such) but the combination of light and sound increases the chances of the vehicle being detected and identified.
The duplication of a resource for purposes of high availability. For example, you can obtain data redundancy by mirroring data across different disks or by using parity RAID. You can obtain system redundancy by setting up a cluster, and network redundancy by using multiple network connections. The more levels of resource redundancy you have, the greater the resource availability. For example, a cluster with four member systems has more levels of redundancy and thus higher availability than a two-system cluster.
The provision of multiple interchangeable components to perform a single function to cope with failures and errors. Common forms of hardware redundancy are disk mirroring, implementations of parity disks or distributed parity.
The duplication of information or hardware equipment components to ensure that should a primary resource fail, a secondary resource can take over its function.
(1) The portion of the total information contained in a message that can be eliminated without loss in essential information. (2) The provision of duplicate, backup equipment to immediately take over the function of equipment that fails. (3) In a database, the storage of the same data item or group of items in two or more files.
The part of a message or system that can be thrown away without losing the essential information of service. The part of a system that duplicates the essential tasks to take over should the original fail. Redundancy is built into many systems - or you can build redundancy in, at your option - to insure your system will always work....That portion of the total information contained in a message which can be eliminated without the loss of essential information, such as characters used only for checking. Also used to describe a communications facility in which there is a spare "back up" device for each important component of the system.
(Machine Safety) The duplication of components or circuitry that will provide the same function should a component or circuit fail.
As related to the POS system, this means that a server can post items to a guest check at one terminal, log off, go to another terminal, open that same check, and the new items will show up at that terminal as well.
The user interface of a software application or operating system is sometimes described as redundant if the same task can be executed by several different methods. For example, a user is often able to open or save a project by navigating a menu with the mouse, by clicking a single button with the mouse, or by entering a key stroke.