File Systems and Storage

The following features, enhancements, and changes related to file systems and storage are introduced in this Oracle Linux 9 release.

Multipathd Supports File-Based Sockets for Container Communication

Multipathd can use file-based sockets for communication from containers to the host daemon. The multipathd daemon listens on a socket file at /run/multipathd.socket and also the abstract namespace socket. You can bind-mount the socket into a container, letting it interact with the host's multipathd daemon more easily.

This feature improves container integration for storage management, so you can monitor and configure multipath devices from inside containers without extra networking. Device paths stay consistent across container boundaries.

Mount /run/multipathd.socket in the container and use standard multipath tools, such as multipath -ll, to query or manage devices from within the container.