Electrical computers and digital processing systems: memory – Storage accessing and control – Memory configuring
Reexamination Certificate
2011-08-23
2011-08-23
Thai, Tuan V (Department: 2185)
Electrical computers and digital processing systems: memory
Storage accessing and control
Memory configuring
C711S173000
Reexamination Certificate
active
08006061
ABSTRACT:
Technologies are described for implementing a migration mechanism in a data storage system containing multiple tiers of storage with each tier having different cost and performance parameters. Access statistics can be collected for each territory, or storage entity, within the storage system. Data that is accessed more frequently can be migrated toward higher performance storage tiers while data that is accessed less frequently can be migrated towards lower performance storage tiers. Each tier can be associated with a range of ILM statistics referred to as the bucket for that tier. A pivot table may be provided that relates the tiers and the buckets. Operations on the pivot table can provide counts of how many territories may be promoted or demoted between any two pairs of tiers.
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Chatterjee Paresh
Enoch Sharon
Narayanan Ajit
Ranganathan Loganathan
American Megatrends Inc.
Dinh Ngoc V
McKeon Meunier Carlin & Curfman LLC
Thai Tuan V
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