Storage apparatus and method of controlling storage apparatus

摘要

Efficient data processing is implemented by using the functions of an external storage apparatus which is connected to the virtual storage apparatus.;A storage apparatus which is connected to a host apparatus which requests data I/Os and to an external storage apparatus comprising a storage device respectively via a network, comprising a storage device storing data which is read and written by the host apparatus; and a control device which controls data writing to a storage area, wherein the control device provides a predetermined storage area of the storage device of the external storage apparatus to the host apparatus as one or more virtual volumes, and manages the virtual volumes and function information indicating the functions of the external storage apparatus in association with one another.

主权项

1. A storage apparatus which is connected to a host apparatus requesting data I/Os and connected to an external storage apparatus comprising a storage device respectively via a network, comprising:
a control device configured to control data writing to a storage area, wherein the storage device of the external storage apparatus is configured to store data which is read and written by the host apparatus, wherein the control device is further configured to:
manage function information which indicates a function executed by a controller of each of a plurality of storage apparatuses which are available as the external storage apparatus;provide a predetermined storage area of the storage device of the external storage apparatus to the host apparatus as one or more virtual volumes, and manage IDs of the one or more virtual volumes;obtain attribute information of the predetermined storage area from the external storage apparatus;specify the function provided by the external storage apparatus which provides the predetermined storage area by referring to the managed function information; andmanage each of the one or more virtual volumes with the function information which indicates the specified function for the predetermined storage area associated with each of the virtual volumes.