Overview

CloudShell High Availability is available for Premium accounts only.

This document describes the installation and configuration of the CloudShell High Availability (HA) Add-On, and should be read in conjunction with the CloudShell 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.

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.

Troubleshooting

You are invited to check out the Troubleshooting Guide which includes common error messages and step-by-step instructions to resolving them. You can search the guide by error message to find the article that relates to your issue. The guide also includes instructions on how to collect logs including CloudShell system logs, QualiX logs, Linux Execution Server logs, and Python-based logs.

For more information, visit the Troubleshooting Guide.