Patent ID: 9092141
Filing Date: 2015-07-28
Classification: G06F

Abstract:
1. A system comprising: a storage system operable to couple to a server and to manage a plurality of storage tiers, each of the plurality of storage tiers operable to store data sent from the server; and a management computer operable to manage storage of data in the storage system and to manage a storage tier of the plurality of storage tiers for storing data based on whether the data is stored in a cache memory in the server or not; wherein the management computer receives information which indicates whether data location of the data is AUTO or not and, if not AUTO, indicates a current tier of the data and whether the data is stored in the cache memory of the server; wherein if the information indicates that the data location is AUTO, frequently accessed data is moved to a higher tier and infrequently accessed data is moved to a lower tier; and wherein if the information indicates that the data location is not AUTO and the data is stored in the cache memory of the server, the management computer sends a command to the storage system to request that the data be moved from the current tier to a lower tier of the storage system which is lower than the current tier.