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MIRROR DISK [4 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2019-11-26

English

Subject field(s)
  • Storage Media (Data Processing)
DEF

A disk that maintains an exact copy or duplicate of another disk.

CONT

All writes to the primary disk are also made to the mirror(or secondary) disk.

French

Domaine(s)
  • Supports d'information (Informatique)
DEF

Disque qui conserve une copie exacte ou un double d'un autre disque.

CONT

Un disque miroir est souvent appelé disque secondaire et le disque d'origine est appelé le disque principal. Tous les enregistrements effectués sur le disque principal le sont également sur le disque en miroir (ou secondaire).

CONT

Le système écrit simultanément sur [...] deux disques de façon qu'ils contiennent les mêmes versions des fichiers. Si le disque primaire connaît un problème, son disque miroir prend le relais. [Reproduit avec l'autorisation de l'AFNOR.]

Spanish

Campo(s) temático(s)
  • Medios de almacenamiento (Procesamiento de datos)
CONT

Un disco espejo es una forma de respaldar la información de nuestro disco duro.

Save record 1

Record 2 2012-11-22

English

Subject field(s)
  • Computer Programs and Programming
  • IT Security
  • Internet and Telematics
CONT

In cross-site mirroring, an independent disk pool that is being geographically mirrored so that it is a replica of the production copy of the independent disk pool. If a switchover or failover causes the system that owns the mirror copy to become the current primary node, the mirror copy becomes the production copy of the independent disk pool.

CONT

Mirroring [is] the creation of a mirror image of a primitive [disk].

French

Domaine(s)
  • Programmes et programmation (Informatique)
  • Sécurité des TI
  • Internet et télématique
CONT

Il est possible, à peu ou pas de frais, de faire une image miroir de votre installation de Windows. Contrairement au disque original de Windows ou au disque de récupération qui accompagnait votre ordinateur, l’image a pour avantage principal de faire une copie intégrale de l’ordinateur au moment précis qui vous convient. Ainsi, en cas de panne matérielle ou logicielle, vous pourrez récupérer votre ordinateur dans l’état précis où il était au moment de la création de cette image, vos imprimantes configurées, vos logiciels installés et paramétrés, vos comptes utilisateurs créés et tous les documents qu’ils contiennent.

PHR

Produire une image miroir.

Spanish

Save record 2

Record 3 2010-07-26

English

Subject field(s)
  • Optics
CONT

[The first Danjon-Conder criterion for a good primary mirror] The radius of the circle of least aberration should be comparable with that of the theoretical diffraction disk and, on the average, the transverse aberrations should not exceed the diffraction disk radius.

French

Domaine(s)
  • Optique
CONT

Si l'on prend un plan, perpendiculaire à l'axe optique, situé autour du point focal, le diamètre de la tache fait par les rayons lumineux est appelé aberration transversale. L'endroit où l'aberration transversale est minimale est appelé cercle de moindre aberration.

Spanish

Save record 3

Record 4 2004-05-12

English

Subject field(s)
  • Weather Stations and Meteorological Instruments and Equipment
DEF

Nephoscope in which the image of the clouds produced by a mirror is observed.

CONT

The mirror nephoscope consists essentially of a horizontal disk of black glass engraved with concentric circles. A vertical pointer adjustable to various known heights is mounted on the rim of the instrument. The pointer is so placed by the observer that the image of the cloud under observation is in line with the pointer and the centre of the disk. The image is kept in line with the pointer as it moves, and the direction of motion is read off from a scale on the rim of the circle. Another type of mirror nephoscope has a mirror on which the only marking is a centre point.

OBS

nephoscope: An instrument for determining the direction of cloud motion. There are two basic designs of nephoscope: the direct-vision nephoscope and the mirror nephoscope. Also called nepheloscope.

OBS

There are several types of nephoscope: the comb nephoscope developed by Besson; the mirror nephoscope developed by Finemann; and the grid nephoscope, a variation on the comb modified by the Norwegians.

OBS

In one source, the Finemann nephoscope is "a mirror nephoscope developed by Finemann". In the other source, Fineman nephoscope is an "adaptation of the mirror nephoscope". Compare Fineman nephoscope.

Key term(s)
  • mirror nepheloscope
  • reflection nepheloscope
  • reflecting nepheloscope
  • cloud nepheloscope

French

Domaine(s)
  • Stations, instruments et équipements météorologiques
DEF

Néphoscope dans lequel on observe l'image des nuages donnée par un miroir.

Spanish

Campo(s) temático(s)
  • Estaciones, instrumentos y equipos meteorológicos
DEF

Nefoscopio en que las imágenes de las nubes se reflejan sobre un espejo.

Save record 4

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