Patent
1993-12-23
1996-06-11
Swann, Tod R.
395463, G06F 1212
Patent
active
055265111
ABSTRACT:
The disclosure relates to a cache management method for a post-store cache. Recently referenced units of storage in the cache are identified and a round robin cache replacement method is generally used to select a unit of storage for replacement if the unit of storage has not been recently referenced. Recently used segments are identified by maintaining a Recently Used Zone ahead of the storage location presently considered for replacement. For each reference to a unit of storage in the cache which results in a miss, a portion of the cache is scanned for units of storage to destage.
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Bengtson Kevin W.
Swenson Robert E.
Johnson Charles A.
Maunu LeRoy D.
O'Neill David J.
Starr Mark T.
Swann Tod R.
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