Appeal No. 1998-1517 Page 8
Application No. 08/685,269
equal storage capacity with the exception that disk 0 has
slightly less storage capacity. Jacobson further discloses
(col. 5, lines 8-16) that
[T]he RAID management system effectively "tunes" the
storage resources of a memory system according to the
application or user requirements. For instance, in
an
application requiring high performance and reliability,
the RAID management system may create and define a
proportionally larger mirror RAID area, thereby
dedicating a larger amount of physical storage capacity
to mirror redundancy, in comparison to the parity RAID
area.
Moreover, in Jacobson (col. 7, lines 44-53), RAID management
system 16 selectively adjusts the memory allocation between
parity and mirror areas according to the specific performance
and reliability requirements of the various applications.
From our review of Jacobson, we find no teaching or
suggestion of providing a single predefined mirror drive for a
plurality of data drives with the single predefined mirror
drive provided with a set capacity substantially greater that
the capacity of each of the plurality of data drives, as
recited in claim 1.
We do not agree with the examiner (answer, pages 4 and 8)
that providing a single predefined mirror drive with a set
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