CloudShell High Availability is available for Premium accounts only.
This guide describes the installation and configuration of the CloudShell High Availability (HA) Add-On, and should be read in conjunction with the High Availability Deployment guide.
The CloudShell High Availability (HA) Add-On provides you with same-site continuous operation in cases of HW/SW failure of any CloudShell component. HA typically deals with a single predictable failure, such as the failure of a processor, memory or power supply. CloudShell HA is based on a failover cluster where all nodes are in a single site.
This is achieved by configuring CloudShell in a failover cluster. A failover cluster is a group of independent servers (nodes) that work together to increase the availability and scalability of clustered nodes. The clustered nodes are connected by physical cables and by software. If a failure occurs and the active cluster node goes down, the clustering solution changes the active node automatically to the standby server and Quali server starts on the new active node.
:::info Important An HA configuration does not substitute for a Disaster Recovery (DR) strategy, which aims at protecting your organization from the effects of significant negative incidents and allows you to quickly resume mission-critical functions following a disaster. Defining an organization’s DR strategy is based on mapping the potential disaster risks and establishing a plan that may involve manual and/or automated actions and the use of various software tools and technologies. :::