Loopback device endpoints

Some device nodes on Unix and Unix-like systems do not correspond to physical devices. All such devices are known as pseudo-devices and provide multiple functions that are handled by the operating system. A Loopback device is an example of a pseudo-device that is used as a block device by Unix systems to access files. Before that it must be attached to a file in the file system. The file, also referred to as loopback file, can contain an ISO image, a disk image, a file system, or a logical volume image and can be mounted as a disk device. Applications can use the loopback device that is created to provide block access to a file. For example, CSI Raw Block volume.

You can view, attach, or detach loopback files by using the endpoint definitions.