TrueNAS Core MCP Server

Get detailed information about a specific user

Args:
    username: Username to look up

Get detailed status of a specific pool

Args:
    pool_name: Name of the pool

Create a new dataset

Args:
    pool: Pool name where dataset will be created
    name: Dataset name
    compression: Compression algorithm (default: lz4)
    quota: Optional quota in bytes

Create a new SMB share

Args:
    path: Path to share
    name: Share name
    comment: Optional comment
    read_only: Whether share is read-only

Create a snapshot of a dataset

Args:
    dataset: Dataset path (e.g., "tank/data")
    name: Snapshot name
    recursive: Whether to create recursive snapshots

Modify dataset permissions (chmod/chown equivalent)

Args:
    dataset: Dataset path (e.g., "tank/data")
    mode: Unix permission mode (e.g., "755", "644")
    owner: Owner username or UID
    group: Group name or GID
    recursive: Apply permissions recursively

Update dataset Access Control Lists (ACLs)

Args:
    dataset: Dataset path (e.g., "tank/data")
    acl_entries: List of ACL entries with permissions
    recursive: Apply ACLs recursively
    strip_acl: Remove all ACLs and revert to Unix permissions

Get current permissions and ACL information for a dataset

Args:
    dataset: Dataset path (e.g., "tank/data")

Modify ZFS dataset properties

Args:
    dataset: Dataset path (e.g., "tank/data")
    properties: Dictionary of properties to update
               Examples: {"compression": "lz4", "dedup": "on", "quota": "10G"}

Get all properties of a dataset

Args:
    dataset: Dataset path (e.g., "tank/data")

Create an NFS export for Kubernetes persistent volumes

Args:
    dataset: Dataset path to export (e.g., "tank/k8s-volumes")
    allowed_networks: List of allowed networks (e.g., ["10.0.0.0/24"])
    read_only: Whether the export is read-only
    maproot_user: User to map root to
    maproot_group: Group to map root to

Create an iSCSI target for Kubernetes block storage

Args:
    name: Target name (e.g., "k8s-block-01")
    dataset: Dataset for storing the iSCSI extent
    size: Size of the iSCSI extent (e.g., "100G")
    portal_id: iSCSI portal ID to use

Create an automated snapshot policy

Args:
    dataset: Dataset to snapshot
    name: Policy name
    schedule: Schedule configuration (cron-like)
             {"minute": "0", "hour": "*/4", "dom": "*", "month": "*", "dow": "*"}
    retention: Retention settings {"hourly": 24, "daily": 7, "weekly": 4, "monthly": 12}
    recursive: Include child datasets