High Availability Technologies

  • Dmitri Korotkevitch


A high-availability (HA) strategy helps improve the availability of the system due to hardware, software, or network malfunctions. Even though it sounds similar to a backup and disaster-recovery (DR) strategy, it is not the same. A high-availability strategy serves as the first level of defense, making a hardware failure or software crash transparent to users. Disaster recovery, on the other hand, deals with situations where a system needs to be recovered after a disaster that was not prevented by the high-availability strategy in use.


High Availability Service Level Agreement Secondary Node Primary Server Secondary Server 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Dmitri Korotkevitch 2016

Authors and Affiliations

  • Dmitri Korotkevitch
    • 1
  1. 1.TampaUSA

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