APPARATUS AND METHOD FOR DETERMINING ONE OF CONTROL UNITS TO PERFORM A VERIFICATION PROCESS ON DATA

摘要

Plural control-units each perform a verification process for verifying validity of data. A first storage stores, for each control-unit, an index value indicating a load on the each control-unit activating the verification process, in association with each combination of a rate of a data-amount processed in the verification process executed by the each control-unit and a utilization rate of the each control-unit. A second storage stores, in association with each control-unit, information on a data-amount currently being processed in the verification process activated by the each control-unit and the utilization rate of the each control-unit. A first control-unit determines an index value, for each control-unit, by referring to information in the first storage based on information on a data-amount to be processed in a target verification process and information in the second storage, and determines a second control-unit to activate the target verification process, based on the determined index values.

主权项

1. A storage controller comprising:
a plurality of control units each configured to perform a verification process in which validity of data is verified; a first storage unit configured to store, for each of the plurality of control units, an index value in association with each of combinations of a first data-amount rate indicating a rate of an amount of data processed in the verification process executed by the each control unit and a utilization rate of the each control unit, the index value indicating a load to be imposed on the each control unit when the each control unit activates the verification process; and a second storage unit configured to store, in association with each of the plurality of control units, a first amount value indicating an amount of data currently being processed in the verification process activated by the each control unit and the utilization rate of the each control unit, wherein a first control unit included in the plurality of control units:
determines an index value, for each of the plurality of control units, by referring to information stored in the first storage unit based on a second amount value indicating an amount of data that is to be processed in a target verification process to be executed and information stored in the second storage unit; anddetermines a second control unit that is to activate the target verification, from among the plurality of control units, based on the determined index values.