Method and apparatus for assigning storage resources to a power saving target storage pool based on either access frequency or power consumption

摘要

The present invention achieves appropriate power saving of the storage systems in accordance with the user's needs. In a storage system 1 including a storage apparatus 10 comprising a thin provisioning function and a management device 20, the management device 20 receives specification of a storage pool 93 as a power saving target and the specification of a power saving mode from a user and, when receiving the specification of prioritizing host access, selects the storage resource (RAID group 92) allocated to the storage pool 93 preferentially in ascending order of access frequency from the host computer 30 until a sum of a reduced amount of power saving exceeds the target value or, when receiving the specification of prioritizing power saving, selects the storage resources allocated to the storage pool 93 preferentially in descending order of power consumption until a sum of a reduced amount of power consumption exceeds a target value, and makes the power saving function of the selected storage resources operate.

主权项

1. A method of managing power consumption of a storage apparatus, the storage apparatus communicatively coupled to a host computer and a management device, and the storage apparatus comprising: a plurality of storage resources that have a power saving function; one or more storage pools to which one or more of the plurality of storage resources are allocated respectively; and a Thin Provisioning function unit that provides to the host computer a virtual volume provided by the one or more storage pools, the method comprising:
receiving, by the management device, a specification of a power saving target storage pool as a power saving target; receiving, by the management device, a specification of a power mode, the power mode including any one of a mode of prioritizing host access that emphasizes an access performance of the storage apparatus to the host computer and a mode of prioritizing power saving that prioritizes power saving of the storage apparatus; when the specification of the mode of prioritizing host access is received, sending, by the management device, to the storage apparatus a first instruction to select the storage resources allocated to the power saving target storage pool in ascending order of an access frequency from the host computer until a sum of a reduced amount of power saving of all the selected storage resources exceeds a target value, and performing, by the storage apparatus, the power saving function of the selected storage resources according to the first instruction; and when the specification of the mode of prioritizing the power saving is received, sending, by the management device, to the storage apparatus a second instruction to select the storage resources allocated to the power saving target storage pool in descending order of power consumption until a sum of a reduced amount of power saving of all the selected storage resources exceeds a target value, and performing, by the storage apparatus, the power saving function of the selected storage resources according to the second instruction.