US 7,484,114 B2
Method and apparatus for providing redundant access to a shared resource with a shareable spare adapter
Brian Eric Bakke, Rochester, Minn. (US); Timothy Jerry Schimke, Oronoco, Minn. (US); and Joseph Thomas Writz, Rochester, Minn. (US)
Assigned to International Business Machines Corporation, Armonk, N.Y. (US)
Filed on Aug. 17, 2001, as Appl. No. 9/932,140.
Prior Publication US 2003/0037275 A1, Feb. 20, 2003
Int. Cl. G06F 11/00 (2006.01)
U.S. Cl. 714—4  [714/7; 714/13; 714/42; 714/43; 714/56] 29 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a plurality of access adapters, each adapter configured to interface with an electronic resource;
at least one shareable spare adapter configured to function as a network interface that removably couples with the electronic resource; and
control circuitry configured to assign a correlation token to each of the plurality of access adapters, each correlation token for use in connection with accessing an electronic resource via the access adapter to which such correlation token is assigned, the control circuitry further configured to initiate a substitution of the shareable spare adapter for any of the plurality of access adapters to supplant a substituted access adapter without intervention by any server in electronic communication with the electronic resource, wherein the control circuitry is configured to initiate the substitution of the shareable spare adapter for the substituted access adapter by reassigning the correlation token assigned to the substituted access adapter to the shareable spare adapter.