TrueNAS snapshots capture the state of a dataset or zvol at a point in time, enabling data recovery without full backups.

The Snapshots screen lists dataset snapshots on the system. It allows you to add new or manage existing snapshots.

Access to the Snapshots screen is available using the Manage Snapshots link on the Data Protection widget on the Datasets screen and by clicking Snapshots on the Periodic Snapshot Tasks widget on the Data Protection screen.

If the selected dataset does not have snapshots, the screen displays No Snapshots are Available.

TrueNAS allows setting data or object quotas for user accounts and groups cached on, or connected to the system.

Select Manage User Quotas on the Dataset Space Management widget to open the User Quotas screen. The User Quotas screen displays names and quota data of user accounts cached on or connected to the system. If no users exist, the screen displays No User Quotas in the center of the screen.

Zvols are block-level datasets used as virtual disks for virtual machines and iSCSI shares.

The Datasets screen and widgets show information about datasets and zvols, provide access to data management functions, indicate the dataset roles, list the services using the dataset, show encryption status, and list permissions for datasets. The screen focuses on managing data storage, including user and group quotas, snapshots, and other data protection measures.

The Datasets screen shows No Datasets and a Create Pool button until you add a pool and the first root dataset.

The Advanced Settings screen provides configuration options for the console, syslog, audit, kernel, sysctl, storage (system dataset pool), replication, WebSocket sessions, cron jobs, init/shutdown scripts, NTP servers, allowed IP addresses, isolated GPU device(s), self-encrypting drives, and global two-factor authentication.