Failover
Failover is a process in which a system transfers functions from a failed component—either hardware or software—to an identical working component. All failover configurations by definition rely on redundant components; at least one of the redundant components must be active, while the others are on standby for use should the active component fail.
The best example of a system that utilizes failover components is a RAID (redundant array of inexpensive disks). RAIDs typically contain pools of spare disks to be used in place of a failed disk that was previously in use. These disks can be considered the standby units in a failover configuration, while the disks that actually participate in the RAID array are active. The standby disks don't ...
Get Unix® System Management Primer Plus now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
