Appeal No. 1997-2242 Page 14
Application No. 08/084,370
Claim 2
determining if said failed disk contains all
parity chunks;
if said failed disk contains all parity chunks,
terminating said method;
if said failed disk contains at least some data
chunks, reorganizing said data chunks of said array
to form an array with the characteristics of a RAID
level 0 array.
Claim 3
In a storage system having n active disks and one
failed disk formerly organized into strips when said
failed disk was active . . . said n active disks
arranged into a fully folded array, the failed disk
having chunks, each of said chunks located on a
different one of said strips, a method of restoring
said fully folded array to a fully redundant
condition.
We find that Jones discloses (col. 15, lines 44-50) the need
for
data guarding both when the number of defective sectors has
grown
so large as to exhaust the capacity of one of the disk drives,
and when the drive fails for some other reason such as
mechanical
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