Docker container storage drivers are responsible for managing the layered file systems of containers and images. Common storage drivers include: overlay2 (recommended, good performance, supports most file systems), aufs (older, average performance), btrfs (supports snapshots, but high performance overhead), zfs (powerful features, but high memory usage), devicemapper (deprecated), vfs (simple but poor performance). Choosing a storage driver requires considering: Linux kernel version, file system type, performance requirements, feature requirements. overlay2 is currently the best choice for most production environments. You can use docker info to view the current storage driver.