8.2.3.1 Local Volume Driver

The local volume driver is Docker's default mechanism for volume storage, keeping a volume's actual data directly on the same host where the Docker daemon runs, appropriate for the typical case where a volume only needs to be accessible to containers on that single host.

How the Local Driver Stores Data

The local driver stores a volume's content within Docker's own managed storage area on the host's filesystem, abstracted away from direct user interaction but ultimately backed by ordinary local disk storage.

docker volume create mydata
docker volume inspect mydata --format '{{.Mountpoint}}'

This reveals the actual underlying host path where the local driver is storing this volume's data.

Why the Local Driver Is the Right Default for Most Use Cases

For a typical single-host deployment, where containers needing access to a given volume's data all run on that same host, the local driver's straightforward approach is both sufficient and simple, requiring no additional configuration or external dependencies.

docker run -d -v mydata:/app/data myapp:1.0

The Local Driver's Limitation for Multi-Host Scenarios

A local volume's data is tied specifically to the host it was created on — a container scheduled on a different host in a multi-host cluster cannot access that same volume's data without some additional mechanism, since the local driver has no built-in awareness of other hosts at all.

docker volume create local-data

This volume's data exists only on this specific host; a container needing this same data but scheduled elsewhere in a cluster would need a different storage approach.

When an Alternative Driver Becomes Necessary

For genuinely multi-host deployments needing shared access to the same volume data across different machines, a networked or cloud-backed volume driver becomes necessary, since the local driver's single-host design cannot support this requirement.

docker volume create --driver some-shared-storage-plugin shared-data

Why the Local Volume Driver Matters

As Docker's default and most commonly used volume driver, a solid understanding of the local driver's straightforward, single-host storage model covers the large majority of everyday volume usage, while also clarifying exactly when and why a more advanced driver might actually be needed instead.