Storage control system and method

摘要

A storage system having a plurality of storage devices including a first type storage device and a second type storage device, a reliability attribute and/or a performance attribute of the first type storage device being different from a reliability attribute and/or a performance attribute of the second type storage device. The storage system also has a control unit and managing a plurality of virtual volumes. If necessary, a storage area allocated to a first portion of a virtual volume of the plurality of virtual volumes is changed from a first type storage area of the plurality of first type storage areas to a second type storage area of the plurality of second type storage areas while another first type storage area of the plurality of first type storage areas is allocated to a second portion of the virtual volume.

主权项

1. A storage system comprising:
a plurality of storage devices including first type storage devices and second type storage devices, the second type storage devices having a different reliability and/or performance attribute from the first type storage devices; and a control unit configured to manage a virtual volume including a first portion to which a first storage area provided by the first type storage devices is allocated, the virtual volume being a copy destination of a source volume, wherein the control unit is configured to allocate a second storage area provided by the second type storage devices to the first portion of the virtual volume, instead of the first storage area, based on at least an access frequency of a first portion of the source volume which corresponds to the first portion of the virtual volume.