Power consumption control on an identified unused storage unit

A storage system that functions as one or more logical volumes includes a control unit and a plurality of storage units connected to the control unit, wherein the control unit includes a memory that stores allocation status information that indicates status of allocation of the plurality of storage...

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Bibliographische Detailangaben
Hauptverfasser: THIELO OMAR HAME, SAKAGAMI YUICHI, YOSHIYA YUKIHIRO, OTAKA ATSUHIRO, TAKATSU KAZUMA
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A storage system that functions as one or more logical volumes includes a control unit and a plurality of storage units connected to the control unit, wherein the control unit includes a memory that stores allocation status information that indicates status of allocation of the plurality of storage units to a logical volume; an access request responding unit that controls at least one storage unit among the plurality of storage units in response to a request for access to each logical volume from a host device; and a power saving controller that identifies an unused storage unit not allocated to any logical volume among the plurality of storage units on the basis of the allocation status information and performs power saving control on the identified unused storage unit.