Patent Document ID: 20080055644
Application ID: 11469811
Patent Status: 0

Claim One:
1. An article of manufacture including code enabled to communicate with a memory and storage locations and to perform: maintaining an image of data in a memory, wherein the image in the memory includes a generation number; writing the image in the memory to at least two copies of the image to storage locations in response to a first event, wherein the generation number for the image in the memory is stored in the storage locations having the copies of the image; storing in a storage location a check generation number; loading the image from at least one of the copies of the image in one of the storage locations to the memory in response to a second event; incrementing the generation number for the image loaded into the memory; incrementing the check generation number in response to the second event; and using the generation numbers for the copies of the image in the storage locations and the check generation number to validate the copies of the image.