Backup and Restore Jenkins-Jenkins is enormously extendable through plugins. It is necessary to verify whether plugins work properly and don’t affect Jenkins down due to errors in plugin development.
Use ThinBackup plugin to schedule backup of Jenkins configuration and the testing history.
Download HPI file from https://updates.jenkins-ci.org/download/plugins/thinBackup/
Put that file in plugins folder of Jenkins.war file
Run the Jenkins.war file again by executing java –jar jenkins.war
Click on the Manage Jenkins link on the Dashboard
Click on Settings
Click on Backup Now
Click on Restore