公开(公告)号：US20170160784A1

公开(公告)日：2017-06-08

申请号：US15327451

申请日：2014-09-04

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： James Alexander Fuxa ,  Michelle Geppert ,  Yovita Iskandar

IPC: G06F1/32 ,  G06F3/06 ,  G06F12/0873 ,  G06F11/10

CPC classification number: G06F1/324 ,  G06F1/3221 ,  G06F1/3268 ,  G06F3/0625 ,  G06F3/0689 ,  G06F11/1076 ,  G06F12/0873 ,  G06F2212/1016 ,  G06F2212/262 ,  G06F2212/284 ,  Y02D10/126 ,  Y02D10/154

Abstract: Techniques for reducing power consumption of a storage controller are provided. An example method includes determining a back-end bandwidth of a storage system, wherein the back-end of the storage system includes a storage drive communicatively coupled to a storage controller. The method also includes determining a front-end bandwidth of the storage system, wherein the front-end of the storage system includes a front-end bus coupling the storage controller to a host. The method also includes computing a target back-end memory bandwidth based on the back-end bandwidth and computing a target front-end memory bandwidth based on the front-end bandwidth. The method also includes reducing power consumption of the storage controller by reducing a clock frequency of a memory device of the storage controller based on the greater of the target back-end memory bandwidth and the target front-end memory bandwidth.

公开(公告)号：US10254814B2

公开(公告)日：2019-04-09

申请号：US15327451

申请日：2014-09-04

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： James Alexander Fuxa ,  Michelle Geppert ,  Yovita Iskandar

IPC: G06F1/32 ,  G06F1/324 ,  G06F12/0873 ,  G06F11/10 ,  G06F1/3221 ,  G06F1/3234 ,  G06F3/06

Abstract: Techniques for reducing power consumption of a storage controller are provided. An example method includes determining a back-end bandwidth of a storage system, wherein the back-end of the storage system includes a storage drive communicatively coupled to a storage controller. The method also includes determining a front-end bandwidth of the storage system, wherein the front-end of the storage system includes a front-end bus coupling the storage controller to a host. The method also includes computing a target back-end memory bandwidth based on the back-end bandwidth and computing a target front-end memory bandwidth based on the front-end bandwidth. The method also includes reducing power consumption of the storage controller by reducing a clock frequency of a memory device of the storage controller based on the greater of the target back-end memory bandwidth and the target front-end memory bandwidth.