STORAGE APPARATUS AND DATA MANAGEMENT METHOD

摘要

A storage apparatus includes: a plurality of microprocessors; a plurality of storage areas formed into a drive group constituted from a plurality of physical drives; and a control unit for managing one of the microprocessors, which takes charge of data input to and output from one or more storage areas of the plurality of storage areas, as a microprocessor having ownership of the one or more storage areas; wherein the microprocessor executes dump processing for having an external physical drive store data of the one or more storage areas, for which the microprocessor takes charge of the data input and output, in response to a received I/O request; and wherein the control unit transfers the ownership of the microprocessor according to processing load bias of the dump processing which the plurality of microprocessors take charge of.

主权项

1. A storage apparatus comprising:
a plurality of microprocessors; a plurality of storage areas formed into a drive group constituted from a plurality of physical drives; and a control unit for managing one of the microprocessors, which takes charge of data input to and output from one or more storage areas of the plurality of storage areas, as a microprocessor having ownership of the one or more storage areas; wherein the microprocessor executes dump processing for having an external physical drive store data of the one or more storage areas, for which the microprocessor takes charge of the data input and output, in response to a received I/O request; and wherein the control unit transfers the ownership of the microprocessor according to processing load bias of the dump processing which the plurality of microprocessors take charge of wherein when the received I/O pattern is an RDTRK command to read all areas of the storage areas, a read target of the RDTRK command is a storage area which forms a copy pair with another storage area, and the control unit sequentially receives the RDTRK command at specified intervals, the control unit determines that the dump processing by the microprocessor has started.