CloudStack HighAvailabilityManager

CloudStack has a component called HighAvailabilityManager which provides the process for implementing high availability for the infrastructure. CloudStack HighAvailabilityManager provides a well-defined process and works with many other components of CloudStack to provide high availability features in CloudStack. The process of HighAvailabilityManager can be described in three simple steps; they are:

  • Investigation: Determining the state of the VM, like finding out whether the VM is up or down or it is impossible to determine its status.
  • Fencing: This fences the VM and restricts the usage of network or storage. This is done to prevent any corruption of the VM.
  • Start: Turns on the VM instances.

HighAvailabilityManager ...

Get Apache CloudStack Cloud Computing now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.