failover
Automatic standby switch
Failover is the automatic switching to a backup system when the primary one fails.
The term comes from computing and network infrastructure, where failover mechanisms keep services running despite hardware or software failures: The database failover completed in under thirty seconds.
Failover can also function as an adjective: failover server, failover cluster.
Land stripped of trees
- handoverTransfer of control
- activationSetting into operation
- triggerWhat initiates action
- automaticOperating without intervention
manual · seamless · transparent · graceful · detection · initiation · completion · rollover
Continuous operational period
- downtimePeriod of non-operation
- service-levelAgreed standard of delivery
- continuityUninterrupted progression or coherence
- outageLoss of electrical service
reliability · uninterrupted · RTO · always-on · fault-tolerance · resilience · robustness · dependability
Forming concentrated groups
- replicationAct of duplicating precisely
- mirroringReproducing an image identically
- RAIDDisk virtualization technology
- distributedDivided and given out
synchronization · active-passive · primary · secondary · standby · replica · node · instance
Returning something to condition
- rollbackReturn to prior condition
- checkpointInspection station on route
- snapshotInformal photograph taken quickly
- consistencyReliable adherence to standards
resume · reconnection · replay · undo · savepoint · journaling · incremental · versioning
cutover
Land stripped of trees
- handoverTransfer of control
- activationSetting into operation
- triggerWhat initiates action
automatic · manual · seamless · transparent · graceful · detection · initiation · completion · rollover · transfer
uptime
Continuous operational period
- downtimePeriod of non-operation
- service-levelAgreed standard of delivery
- continuityUninterrupted progression or coherence
outage · reliability · uninterrupted · RTO · always-on · fault-tolerance · resilience · robustness · dependability · monitoring
clustering
Forming concentrated groups
- replicationAct of duplicating precisely
- mirroringReproducing an image identically
- RAIDDisk virtualization technology
distributed · synchronization · active-passive · primary · secondary · standby · replica · node · instance · pool
restoration
Returning something to condition
- rollbackReturn to prior condition
- checkpointInspection station on route
- snapshotInformal photograph taken quickly
consistency · resume · reconnection · replay · undo · savepoint · journaling · incremental · versioning · backup
- transferstransfer, money transfer, bank transfer, wire transfer, fund transfer
- phone systemsPBX, extension, phone line, handset, main menu
- tech methodsagile, debugging, scrum, testing, kanban
- databasesSQL, table, databases, database, tables
- DevOpsdeployment, pipeline, rollout, containers, automation
- distributed systemsload balancing, sharding, replication, partitioning, clustering
failoverswitchback
Reversing mountain path
recovery · restoration · reversion · system recovery · cutback
failure, failing, failed, fails, fallback, fallacious, fallible, fallibility, switchover