Node Bound Devices

A node bound device is a pseudo device that maintains a cluster-wide state. This device should, in principle, be opened on one node only. Devices such as /dev/ticotsord belong to this class (see the ticotsord(7D) man page). Highly available devices with automatic fail-over also belong to this class. Only one pseudo node is present but all opens are directed to the same node, with the exception of HA devices, where the hosting node might change, transparent to the device user.