What is BUSE?

BUSE is a block driver in user space. It leverages NBD to provide block volume access to a container. In the back, it writes data out to a local file.

Using BUSE

Declare buse as a driver in your OSD config file as such:

---
osd:
  cluster:
    nodeid: "1"
    clusterid: "deadbeeef"
  drivers:
    buse:

BUSE relies on NBD to export block devices. Therefore, remember to modprobe nbd.