disk mirroring

disk mirroring
   A fault-tolerant technique that writes the same information simultaneously onto two hard disks or two hard-disk partitions, using the same disk controller. If one disk or partition fails, information from the other can be used to continue operations. Disk mirroring is offered by most major network operating systems. It is designed to protect the system against a single disk failure, not multiple diskfailures. Disk mirroring is nosubstitute for a well-planned series of disk backups.

Dictionary of networking . 2014.

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  • Disk Mirroring —   [engl.], Plattenspiegelung …   Universal-Lexikon

  • Disk mirroring — In data storage, disk mirroring or RAID1 is the replication of logical disk volumes onto separate physical hard disks in real time to ensure continuous availability. A mirrored volume is a complete logical representation of separate volume copies …   Wikipedia

  • disk mirroring — ● ►en loc. m. ►DISQUE En français Disques (en) Miroir . Technique de tolérance aux pannes au niveau des fichiers, consistant à enregistrer les mêmes données sur deux disques en même temps, les deux disques utilisant un seul et unique contrôleur.… …   Dictionnaire d'informatique francophone

  • disk mirroring —    Data protection method in which a backup storage device maintains data identical to that which is stored on the primary device. If the primary device fails, the backup device can replace lost data …   IT glossary of terms, acronyms and abbreviations

  • Mirroring — may refer to: mirror (computing), an exact copy of a data set, such as website disk mirroring, copying a whole computer s hard disk mirroring (psychology), behaviour in which one person copies another person This disambiguation page lists… …   Wikipedia

  • Disk cloning — is the process of copying the contents of one computer hard disk to another disk or to an image file. Often, the contents of the first disk are written to an image file as an intermediate step, and the second disk is loaded with the contents of… …   Wikipedia

  • disk duplexing —    A fault tolerant technique that writes the same information simultaneously onto two hard disks.    Each hard disk uses a different disk controller to provide greater redundancy. If one disk or disk controller fails, information from the other… …   Dictionary of networking

  • mirroring —    The process of duplicating stored information in real time to protect vital data from unexpected hardware failures.    See also clustering; disk duplexing; disk mirroring; fault tolerance; redundant array of inexpensive disks …   Dictionary of networking

  • disk duplexing — ● ►en loc. m. ►DISQUE En français duplexage de disque. Technique consistant à enregistrer les mêmes données sur deux disques en même temps, chaque disque utilisant son propre contrôleur, de sorte qu on se retrouve avec un seul gros disque au lieu …   Dictionnaire d'informatique francophone

  • Disk Overhead — is the reason why a computer hard drive or storage device s capacity may show its capacity as different from its actual capacity.ExampleFor example, a computer company sells a hard drive that is marked as 200 gigabytes. When connected to a… …   Wikipedia

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