The story of the accidental `rm *` command during production of the Toy Story 2 movie serves as a reminder to take backups of data regularly, as it can be lost irrecoverably in case of hardware failure or human error. The Couchbase Server provides two commands, cbbackup and cbrestore, which enable users to backup and restore their data online, without taking the cluster offline. Using these commands, users can create backups of entire clusters, individual buckets, or single nodes, and then restore them as needed. It is recommended to use separate machines for backing up data to reduce strain on the live cluster, and to test backup strategies regularly to ensure they work when needed. Additionally, only design documents are backed up and restored, while indexes are rebuilt incrementally after data restoration.