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web3glossaryfailover
Failover

Summary

Failover is a backup operational mode in which the functions of a system are automatically transferred to a standby system in the event of a failure or malfunction of the primary system.

Detailed Description

In networking and computing, failover is a critical process to ensure service continuity. It involves the automatic switching to a redundant or secondary system, server, or component when the primary one fails. This ensures that the system remains operational and minimizes downtime. Failover can involve various levels of redundancy, such as hot standby, warm standby, or cold standby, depending on how quickly the backup can take over and the resources required for it.

Category
Systems Management
Synonyms
Backup System
Redundancy
System Recovery

Impact Details

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Web Hosting Services

In web hosting, failover is used to ensure that if one server fails, traffic is rerouted to a backup server, maintaining website availability.

Industries:

Information Technology
E-Commerce

Platforms:

AWS
Azure
Google Cloud
Database Management Systems

Failover is critical in databases to ensure that data remains accessible in instances where the primary database server becomes unavailable.

Industries:

Finance
Healthcare

Platforms:

MySQL
Oracle DB
Microsoft SQL Server
Telecommunications Networks

Failover ensures that communication channels remain functional by switching to backup lines when primary lines go down.

Industries:

Telecommunications
Corporate Communications

Platforms:

Voice over IP (VoIP)
Private Branch Exchange (PBX)

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