System and Method for Redundant Storage with Improved Energy Consumption
First Claim
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1. A method of reducing power consumption in a redundant storage system, comprising diverting read requests to a first subset of storage disks in the redundant storage system, so that a second subset of remaining storage disks in the redundant storage system can transition to a lower power mode until the second subset of remaining storage disks is needed to satisfy a write request.
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Abstract
A system and method for reducing energy consumption in an information storage system is disclosed which takes advantage of the redundancy in a typical storage system.
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Citations
13 Claims
- 1. A method of reducing power consumption in a redundant storage system, comprising diverting read requests to a first subset of storage disks in the redundant storage system, so that a second subset of remaining storage disks in the redundant storage system can transition to a lower power mode until the second subset of remaining storage disks is needed to satisfy a write request.
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7. A redundant storage system comprising:
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a plurality of storage disks divided into a first subset and a second subset; and
a module which diverts read requests to the first subset of storage disks in the redundant storage system, so that the second subset of storage disks in the redundant storage system can transition to a lower power mode until the second subset of storage disks is needed to satisfy a write request. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A computer-implemented method of reducing power consumption in a redundant storage system, comprising:
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diverting read requests to a first subset of storage disks in the redundant storage system, so that a second subset of remaining storage disks in the redundant storage system can transition to a lower power mode until the second subset of remaining storage disks is needed to satisfy a write request;
detecting if system load in the redundant storage system is high; and
if the system load is high, adding one or more storage disks from the second subset of remaining storage disks to the first subset of storage disks in the redundant storage system so as to handle the system load.
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Specification