COMPUTING DEVICE SYSTEM AND INFORMATION MANAGING METHOD FOR REARRANGEMENT OF DATA BASED ON ACCESS CHARACTERISTIC RELATED TO A TASK

摘要

Technique for decision criterion for determining a transfer destination layer in rearrangement processing. A computer configures rearrangement reference information showing whether an access characteristic related to a task executed on a plurality of host computing devices is considered as a decision criterion for transfer destination determination in rearrangement processing of transferring data between actual storage areas of physical storage devices of different response performance. Storage subsystem refers to the rearrangement reference information and, based on an access characteristic of the plurality of computing devices with respect to the actual storage areas assigned to the plurality of computing devices, executes rearrangement processing of transferring data stored in the actual storage areas to different actual storage areas in the physical storage devices of different response performance.

主权项

1. A computing device system comprising at least one storage subsystem and a plurality of computing devices connected to the at least one storage subsystem, the at least one storage subsystem comprising:
a plurality of physical storage devices of different response performances; a memory configured to store virtual logical volume management information associating a pool including actual storage areas of the plurality of physical storage devices with at least one virtual logical volume comprising the pool; and a processor configured to execute processing of assigning an actual storage area included in the at least one virtual logical volume to one of the plurality of computing devices, wherein at least one computing device of the plurality of computing devices is configured to manage rearrangement reference information showing whether a characteristic of accesses counted with respect to each of a plurality of predetermined units is considered as a decision criterion for transfer destination determination in rearrangement processing of transferring data between actual storage areas of the plurality of physical storage devices of the different response performances, and wherein the processor of the at least one storage subsystem is configured to refer to the rearrangement reference information and, based on the characteristic of accesses of the plurality of computing devices with respect to the actual storage areas assigned to the plurality of computing devices, to execute rearrangement processing of transferring data stored in the actual storage areas to different actual storage areas in the plurality of physical storage devices of the different response performances.