Doni ,  Regarding patent  0557736 A2 ( Krueger) as you  mentioned the site is closed and will be available on  Tuesday April 7,2015.
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The main argument of Micron petition for IPR are based in  following paragraphs,
"One of ordinary skill in the art  would have been motivated to combine Mills’ teaching of using flash  memory as the computer system’s main memory with  Katayama’s file system for flash memory. Specifically,  both references are directed to using flash memory as a way to increase a  computer’s processing speed."
I would like to know your comment in regards to claim 1 of #  108 patent  in regard to  "Non - Volatile " and Logical link between the  previous logical data segment & the new data segment when you analyze  patent # 6272610 (Katayama) and 5696917 (Mills) .