# Operate

Day-two operations — scaling, backup, and maintenance tasks for running clusters.

* [Scale, add, remove racks](https://operator.docs.scylladb.com/v1.22/operate/scale-add-remove-racks.md)
* [Replace nodes](https://operator.docs.scylladb.com/v1.22/operate/replace-nodes.md)
* [Expand storage volumes](https://operator.docs.scylladb.com/v1.22/operate/expand-storage-volumes.md)
* [Use maintenance mode](https://operator.docs.scylladb.com/v1.22/operate/use-maintenance-mode.md)
* [Back up and restore](https://operator.docs.scylladb.com/v1.22/operate/back-up-and-restore.md)
* [Restore from backup](https://operator.docs.scylladb.com/v1.22/operate/restore-from-backup.md)
* [Perform a rolling restart](https://operator.docs.scylladb.com/v1.22/operate/perform-rolling-restart.md)
* [Migrate a rack to a new node pool](https://operator.docs.scylladb.com/v1.22/operate/migrate-rack-to-new-node-pool.md)
* [Pass additional ScyllaDB arguments](https://operator.docs.scylladb.com/v1.22/operate/pass-scylladb-arguments.md)
* [Configure precomputed IO properties](https://operator.docs.scylladb.com/v1.22/operate/configure-io-properties.md)