For critical business systems, a High Availability implementation may be the solution to keep your online presence up and running.
Solutions can vary from HA proxy designs that swap IP addresses between nodes to Intelligent Load Balancing that keeps multiple active-active hosts in use so your users get access to the fastest server first.
High Availability can also include queued designs and using products like Redis to share data or supervisord to keep things running.
Our HA system of choice is typically Corosync and Pacemaker for most Active/Passive designs that involve large Direct Attached Storage systems.
If you need consulting on an existing design, we can provide competitive contracting rates.