Appeal No. 2001-0956
Application No. 08/994,250
OPINION
We have carefully considered the entire record before us,
and we will reverse all of the rejections of record.
Appellants and the examiner all agree that the solid-state
disk 25 in Matsumoto (Figure 15) is a check disk used in a RAID
system, and that the solid-state disk is not part of the storage
controller’s cache memory (brief, page 10, answer, page 5).
According to the examiner (answer, page 5), DeKoning and Loechel
both disclose partitioned non-volatile cache memory in a
plurality of controllers. Although Matsumoto does not disclose a
virtual solid-state disk as part of a cache memory, and the
examiner acknowledges (answer, page 6) that DeKoning and Loechel
do not show that “the partitioned solid state memory in the RDAC
. . . may be further partitioned to be used as a solid stated
[sic, state] disk storage device . . . ,” the examiner
nevertheless concludes (answer, page 7) that it would have been
obvious to one of ordinary skill in the art “to have modified the
DeKoning reference in view of the Matsumoto reference to include
a solid state disk drive to improve access times.”
Appellants argue (brief, page 12) that “Matsumoto fails to
teach or suggest incorporating solid state disk 25 in the cache
memory of the array controller 1 and there is no apparent reason
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