Logo
Unionpedia
Communication
Get it on Google Play
New! Download Unionpedia on your Android™ device!
Install
Faster access than browser!
 

Disk mirroring

Index Disk mirroring

In data storage, disk mirroring is the replication of logical disk volumes onto separate physical hard disks in real time to ensure continuous availability. [1]

31 relations: Asynchronous communication, Btrfs, Business continuance volume, Continuous availability, Data storage, Dell EMC, Disaster recovery, Disk array, Disk array controller, Disk cloning, Distributed Replicated Block Device, File copying, File system, Hard disk drive, Hot spare, Hot swapping, Linux Foundation, Logical disk, Mdadm, Microcode, Real-time computing, Recovery point objective, Red Hat, Replication (computing), Server (computing), Snapshot (computer storage), Software, Stable storage, Standard RAID levels, Synchronization, ZFS.

Asynchronous communication

In telecommunications, asynchronous communication is transmission of data, generally without the use of an external clock signal, where data can be transmitted intermittently rather than in a steady stream.

New!!: Disk mirroring and Asynchronous communication · See more »

Btrfs

Btrfs (pronounced as "butter fuss", "better F S", "butter F S", "b-tree F S", or simply by spelling it out) is a file system based on the copy-on-write (COW) principle, initially designed at Oracle Corporation for use in Linux.

New!!: Disk mirroring and Btrfs · See more »

Business continuance volume

In disk arrays, a business continuance volume, or BCV, is EMC Corporation's term for an independently addressable copy of a data volume, that uses advanced mirroring technique for business continuity purposes.

New!!: Disk mirroring and Business continuance volume · See more »

Continuous availability

Continuous Availability is an approach to computer system and application design that protects users against downtime, whatever the cause and ensures that users remain connected to their documents, data files and business applications.

New!!: Disk mirroring and Continuous availability · See more »

Data storage

Data storage is the recording (storing) of information (data) in a storage medium.

New!!: Disk mirroring and Data storage · See more »

Dell EMC

Dell EMC (formerly EMC Corporation until 2016) is an American multinational corporation headquartered in Hopkinton, Massachusetts, United States.

New!!: Disk mirroring and Dell EMC · See more »

Disaster recovery

Disaster recovery (DR) involves a set of policies, tools and procedures to enable the recovery or continuation of vital technology infrastructure and systems following a natural or human-induced disaster.

New!!: Disk mirroring and Disaster recovery · See more »

Disk array

Typically a disk array provides increased availability, resiliency, and maintainability by using existing components (controllers, power supplies, fans, etc.), often up to the point where all single points of failure (SPOFs) are eliminated from the design.

New!!: Disk mirroring and Disk array · See more »

Disk array controller

A disk array controller is a device which manages the physical disk drives and presents them to the computer as logical units.

New!!: Disk mirroring and Disk array controller · See more »

Disk cloning

Disk cloning is the process of copying the contents of one computer hard disk to another disk or to an "image" file.

New!!: Disk mirroring and Disk cloning · See more »

Distributed Replicated Block Device

DRBD is a distributed replicated storage system for the Linux platform.

New!!: Disk mirroring and Distributed Replicated Block Device · See more »

File copying

In digital file management, file copying is the creation of a new file which has the same content as an existing file.

New!!: Disk mirroring and File copying · See more »

File system

In computing, a file system or filesystem controls how data is stored and retrieved.

New!!: Disk mirroring and File system · See more »

Hard disk drive

A hard disk drive (HDD), hard disk, hard drive or fixed disk is an electromechanical data storage device that uses magnetic storage to store and retrieve digital information using one or more rigid rapidly rotating disks (platters) coated with magnetic material.

New!!: Disk mirroring and Hard disk drive · See more »

Hot spare

A hot spare or warm spare or hot standby is used as a failover mechanism to provide reliability in system configurations.

New!!: Disk mirroring and Hot spare · See more »

Hot swapping

Hot swapping (frequently inaccurately called hot plugging) is replacing or adding components without stopping or shutting down the system.

New!!: Disk mirroring and Hot swapping · See more »

Linux Foundation

The Linux Foundation (LF) is dedicated to building sustainable ecosystems around open source projects to accelerate technology development and commercial adoption.

New!!: Disk mirroring and Linux Foundation · See more »

Logical disk

A logical disk, logical volume or virtual disk (VD or vdisk for short) is a virtual device that provides an area of usable storage capacity on one or more physical disk drive(s) in a computer system.

New!!: Disk mirroring and Logical disk · See more »

Mdadm

mdadm is a GNU/Linux utility used to manage and monitor software RAID devices.

New!!: Disk mirroring and Mdadm · See more »

Microcode

Microcode is a computer hardware technique that imposes an interpreter between the CPU hardware and the programmer-visible instruction set architecture of the computer.

New!!: Disk mirroring and Microcode · See more »

Real-time computing

In computer science, real-time computing (RTC), or reactive computing describes hardware and software systems subject to a "real-time constraint", for example from event to system response.

New!!: Disk mirroring and Real-time computing · See more »

Recovery point objective

A recovery point objective (RPO) is defined by business continuity planning.

New!!: Disk mirroring and Recovery point objective · See more »

Red Hat

Red Hat, Inc. is an American multinational software company providing open-source software products to the enterprise community.

New!!: Disk mirroring and Red Hat · See more »

Replication (computing)

Replication in computing involves sharing information so as to ensure consistency between redundant resources, such as software or hardware components, to improve reliability, fault-tolerance, or accessibility.

New!!: Disk mirroring and Replication (computing) · See more »

Server (computing)

In computing, a server is a computer program or a device that provides functionality for other programs or devices, called "clients".

New!!: Disk mirroring and Server (computing) · See more »

Snapshot (computer storage)

In computer systems, a snapshot is the state of a system at a particular point in time.

New!!: Disk mirroring and Snapshot (computer storage) · See more »

Software

Computer software, or simply software, is a generic term that refers to a collection of data or computer instructions that tell the computer how to work, in contrast to the physical hardware from which the system is built, that actually performs the work.

New!!: Disk mirroring and Software · See more »

Stable storage

Stable storage is a classification of computer data storage technology that guarantees atomicity for any given write operation and allows software to be written that is robust against some hardware and power failures.

New!!: Disk mirroring and Stable storage · See more »

Standard RAID levels

In computer storage, the standard RAID levels comprise a basic set of RAID (redundant array of independent disks) configurations that employ the techniques of striping, mirroring, or parity to create large reliable data stores from multiple general-purpose computer hard disk drives (HDDs).

New!!: Disk mirroring and Standard RAID levels · See more »

Synchronization

Synchronization is the coordination of events to operate a system in unison.

New!!: Disk mirroring and Synchronization · See more »

ZFS

ZFS is a combined file system and logical volume manager designed by Sun Microsystems and now owned by Oracle Corporation.

New!!: Disk mirroring and ZFS · See more »

Redirects here:

Data mirroring, Disk mirror, Hard disk mirroring, Mirrored server, Mirrored volume, RAID resilvering, Resilvering, Smartpedia, Software mirror.

References

[1] https://en.wikipedia.org/wiki/Disk_mirroring

OutgoingIncoming
Hey! We are on Facebook now! »