Resource arbitration via persistent reservation

A system for reserving ownership of a shared resource, the system comprising:

• a coupling between a node and the shared resource;
• and
• a first registration being registered for the node with the shared resource at a time t1 by the system;
• the system attempting to detect the first registration with the shared resource at a time t2 and, if the first registration is detected, preempting a pre-existing reservation placing a new reservation for the node with the shared resource at a time t3, the new reservation limiting any other nodes from reserving ownership of the shared resource.

A computer-readable medium, embodying computer-executable instructions for performing a method to reserve ownership of a shared resource, the method comprising:

• registering a node with the shared resource using a first registration;
• attempting to reserve ownership of the shared resource for the node;
• and
• if unable to reserve ownership of the shared resource:
• attempting to detect a pre-existing reservation with the shared resource,
• delaying a first interval of time, the first interval of time being a reservation interval, and
• preempting the pre-existing reservation placing a new reservation for the node with the shared resource, the new reservation limiting any other node from reserving ownership of the shared resource.

The computer-readable medium of claim 19, wherein the method further comprises:

• reading any registrations with the shared resource;
• attempting to detect the first registration with the shared resource;
• and
• if the first registration is detected:
• removing the any registrations except the first registration with the shared resource,
• delaying a second interval of time, the second interval of time being a maintenance interval, and
• repeating the method of claim 20.