DeviceExpert, the trusted Network Change and Configuration Management solution helps administrators automate various repetitive and time-consuming configuration management tasks.
Administrators rely on DeviceExpert for backing up the configurations, viewing historical information, tracking changes in real-time, comparing configurations, pushing configuration changes to many devices in bulk, automating tasks like firmware update, checking configurations for compliance to standards and IT regulations and numerous other tasks.
To carry out all these tasks effectively, uninterrupted access to DeviceExpert is imperative. To cater to the needs of the customers, DeviceExpert provides the High Availability configuration, with redundant servers. One instance acts as the Primary and the other one acts as the standby. If the primary goes down, users can access the standby.
How does Availability Work?
- There will be redundant DeviceExpert server instances. Both the servers will access one, common database instance
- The High Availability setup involves primary server running on one machine, standby running on another machine and a DB server running on a third machine. (Primary, standby and database should be installed on three separate machines)
- In High Availability setup, DeviceExpert primary will be normally up and running. The standby keeps monitoring the primary. If the primary goes down, DeviceExpert application starts up as standby. The standby server connects to the common database and hence there will not be any data loss. When you start the primary server, which went down, it will automatically get started as ‘standby’. The server, which was originally configured to act as standby will become the primary.
- DeviceExpert Primary and Standby servers are bound by a common public IP so that DeviceExpert web-interface could always be connected to this specific IP. Irrespective of whether DeviceExpert is running as Primary or Standby, end-users can connect to the same public IP seamlessly.
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