In questa pagina puoi ottenere un'analisi dettagliata di una parola o frase, prodotta utilizzando la migliore tecnologia di intelligenza artificiale fino ad oggi:
общая лексика
зеркальные диски (в NetWare)
"зеркалирование" дисков, зеркальное дублирование
защита данных путем создания дополнительной их копии на отдельном диске дискового массива. При этом диски могут быть подсоединены к одному каналу ввода-вывода. Применяется в RAID 1
профессионализм
дублирование дисков[ых данных] на уровне накопителей (в подсистеме с одним контроллером) отображающее дублирование дисков
Смотрите также
общая лексика
развертывающий диск
In data storage, disk mirroring is the replication of logical disk volumes onto separate physical hard disks in real time to ensure continuous availability. It is most commonly used in RAID 1. A mirrored volume is a complete logical representation of separate volume copies.
In a disaster recovery context, mirroring data over long distance is referred to as storage replication. Depending on the technologies used, replication can be performed synchronously, asynchronously, semi-synchronously, or point-in-time. Replication is enabled via microcode on the disk array controller or via server software. It is typically a proprietary solution, not compatible between various data storage device vendors.
Mirroring is typically only synchronous. Synchronous writing typically achieves a recovery point objective (RPO) of zero lost data. Asynchronous replication can achieve an RPO of just a few seconds while the remaining methodologies provide an RPO of a few minutes to perhaps several hours.
Disk mirroring differs from file shadowing that operates on the file level, and disk snapshots where data images are never re-synced with their origins.