Performing device configuration rediscovery

A computer program product comprising instructions stored in a non-transitory computer readable storage medium that are operable to identify device configurations when executed by a data processor, the instructions comprising:

• first instructions for identifying unique identification information for a set of devices in the data processing system to form identified unique identification information;
• second instructions for comparing the identified unique identification information with previously identified unique identification information;
• third instructions for moving configuration data to a memory for devices in the set of devices in which a match exists between the identified unique identification information and the previously identified unique identification information for devices;
• and
• fourth instructions for obtaining configuration information from a device in which configuration information is absent in the memory after configuration data has been moved to the memory for the devices to form a current set of configuration data for the set of devices, wherein the previously identified unique identification information is accessed using a table associated with the configuration data for the set of devices, wherein the table comprises (i) an index used to locate particular configuration data for a particular device, (ii) information used to address the particular device, and (iii) an offset to a memory location within the particular device at which particular unique identifier information for the particular device is stored.

A data processing system for performing device configuration rediscovery, the data processing system comprising:

• a bus system;
• a communications unit connected to the bus system;
• a memory connected to the bus system, wherein the memory includes a set of instructions;
• and
• a processing unit connected to the bus system, wherein the processing unit executes the set of instructions to identify unique identification information for a set of devices in the data processing system to form identified unique identification information;
• compare the identified unique identification information with previously identified unique identification information;
• move configuration data to another memory for devices in the set of devices in which a match exists between the identified unique identification information and the previously identified unique identification information for devices;
• and obtain configuration information from a device in which configuration information is absent in the another memory after configuration data has been moved to the another memory for the devices to form a current set of configuration data for the set of devices, wherein the previously identified unique identification information is accessed using a table associated with the configuration data for the set of devices, wherein the table comprises (i) an index used to locate particular configuration data for a particular device, (ii) information used to address the particular device, and (iii) an offset to a memory location within the particular device at which particular unique identifier information for the particular device is stored.