Appeal No. 1998-1517 Page 2
Application No. 08/685,269
BACKGROUND
Appellant's invention relates to a redundant array of
disk drives with asymmetric mirroring. An understanding of
the invention can be derived from a reading of exemplary claim
1, which is reproduced as follows:
1. A method for processing data in data processing
system including a redundant array of independent disk drives
(RAID) operatively controlled by an array controller
comprising the steps of:
providing a plurality of data drives and a single
predefined mirror drive in the RAID; said single predefined
mirror drive having a set capacity substantially greater than
a capacity of each of said plurality of data drives;
writing data to multiple data drives in the RAID;
writing a mirror copy of said written data to said
predefined mirror drive in the RAID; and
reading data from said multiple data drives.
The prior art reference of record relied upon by the
examiner in rejecting the appealed claims is:
Jacobson et al. (Jacobson) 5,392,244 Feb. 21, 1995.
(filed Aug. 19, 1993)
Claims 1-12 stand rejected under 35 U.S.C. § 103 as being
unpatentable over Jacobson.
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