Method, apparatus and computer program product for determining a destination at which a group of devices can store data associated with the devices

• US 20070106744A1
• Filed: 11/07/2006
• Published: 05/10/2007
• Est. Priority Date: 11/10/2005
• Status: Abandoned Application

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Dunn, Tim, Carter, Marc, Bicheno, Richard, Braithwaite, Kevin
• Application Number:
  US11/593,888
• Publication Number:
  US 20070106744A1
• Time in Patent Office: Days
• US Class Current: 709/213
• CPC Class Codes: H04L 63/104 Grouping of entities
• CPC Class Codes: H04L 67/1097 for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]

Abstract

There is disclosed a method apparatus and computer program for a master of a group of devices to determine a destination at which to store data associated with the devices in the group. Destination preference information is received from each device in the group. Such information is analysed to arrive at a preferred destination and then the device in the group are informed of this preferred destination.

Claims

1. A method for a master of a group of devices to determine a destination at which to store data associated with the devices in the group, the method comprising the steps of:

receiving destination preference information from each device in the group of devices;

analysing the preference information received to arrive at a preferred destination; and

informing the devices in the group of the preferred destination to be used to store data.

2. The method of claim 1 comprising the further step of volunteering to be master of the group.

3. The method of claim 1 comprising the further step of requesting that each group member send its destination preference information.

4. The method of claim 1, wherein the step of analysing the preference information received comprises applying rules to the preference information, thereby weighting the importance of the preference information received from group members.

5. The method of claim 1 comprising the further steps of:

receiving a request for renegotiation of the preferred destination;

requesting new preference information from the group members;

analysing said new preference information; and

determining whether a new destination is appropriate.

6. A method for an initiator device to initiate the process of determining a destination at which to store data associated with a plurality of devices, the method comprising the steps of:

asking each of the plurality of devices whether it wishes to join a group, the purpose of the group being to arrive at a common destination for storing data associated with the plurality of devices; and

receiving acceptances to join the group from the plurality of devices.

7. The method of claim 6, wherein the step of asking each of the plurality of devices whether it wishes to join the group comprises providing the devices with information as to the purpose of the group.

8. The method of claim 6, wherein the step of receiving acceptances comprises:

authenticating any received acceptances; and

registering those devices which have been authenticated as group members.

9. The method of claim 6 comprising the further step of monitoring for new devices to invite to join the group.

10. The method of claim 6 comprising the further step of receiving a message from at least one device in the group volunteering to be master of the group.

11. The method of claim 10 comprising the further steps of:

analysing any messages received by which a device is volunteering to be master;

selecting a device as master of the group; and

informing the group which device has been selected as master of the group.

12. An apparatus for a master of a group of devices to determine a destination at which to store data associated with the devices in the group, the apparatus comprising:

means for receiving destination preference information from each device in the group of devices;

means for analysing the preference information received to arrive at a preferred destination; and

means for informing the devices in the group of the preferred destination to be used to store data.

13. The apparatus of claim 12 comprising means for volunteering to be master of the group.

14. The apparatus of claim 12 comprising means for requesting that each group member send its destination preference information.

15. The apparatus of claim 12, wherein the means for analysing the preference information received comprises means for applying rules to the preference information, thereby weighting the importance of the preference information received from group members.

16. The apparatus of claim 12 comprising:

means for receiving a request for renegotiation of the preferred destination;

means for requesting new preference information from the group members;

means for analysing said new preference information; and

means for determining whether a new destination is appropriate.

17. A computer program stored on a computer readable medium and associated with a master of a group of devices to determine a destination at which to store data associated with the devices in the group, the computer program comprising:

program means for receiving destination preference information from each device in the group of devices;

program means for analysing the preference information received to arrive at a preferred destination; and

program means for informing the devices in the group of the preferred destination to be used to store data.

18. The computer program according to claim 17, further comprising program means for requesting that each group member send its destination preference information.

19. The computer program according to claim 17, wherein the program means for analysing the preference information received comprises program means for applying rules to the preference information, thereby weighting the importance of the preference information received from group members.

20. The computer program according to claim 17, further comprising:

program means for receiving a request for renegotiation of the preferred destination;

program means for requesting new preference information from the group members;

program means for analysing said new preference information; and

program means for determining whether a new destination is appropriate.