Abstract: A storage apparatus and its control method capable of reducing load and necessary memory capacity on the side of the apparatus, which are required for management, are proposed.

Abstract: A storage apparatus includes a controller unit and output unit. The controller receives cyclic information that is cycled within a specific group of storage apparatuses with properties close to a relevant storage apparatus. The cyclic information includes performance information of each storage apparatus in the specific group and evaluation information indicative of an evaluation result of the performance information of each storage apparatus. The controller acquires the performance information including the evaluation results, combines it with the cyclic information, and transmits the cyclic information to a storage apparatus which is a next cycling destination. A similarity level may be calculated based on configuration information and a predetermined weight. A specific group may be formed by checking whether storage apparatuses are capable of communicating with each other, so a cyclic path can be formed. The output unit may transmit performance information as information to be displayed on a user terminal.

Abstract: A storage apparatus and its control method capable of reducing load and necessary memory capacity on the side of the apparatus, which are required for management, are proposed.

Abstract: A storage apparatus includes a control unit and an output unit. When the control unit receives cyclic information that is cycled within a specific group in which storage apparatuses with properties close to a property of the relevant storage apparatus are classified, and includes performance information of each storage apparatus belonging to the specific group and evaluation information indicative of an evaluation result of the performance information of each storage apparatus. The control unit acquires the performance information, combines it with the cyclic information, causes a result of evaluation of the performance information of each storage apparatus with respect to a specified evaluation index to be included in the cyclic information, and transmits the cyclic information to a storage apparatus which is a next cycling destination. And the output unit outputs at least one of the performance information and evaluation information included in the cyclic information.

Abstract: An object of the present invention is to appropriately select a volume or the like to be allocated to a host computer, thereby decreasing work efficiency. Upon being inputted with a precondition (for example, a user ID, a host ID and a work label ID) based on information inputted from a user, a management server 10 identifies a search condition set corresponding to the precondition and recommends this search condition set to the user. The user can utilize the recommended search condition as-is, or after changing a portion thereof. The management server instructs a storage system to allocate the retrieved volume or the like to the host.

Abstract: Proposed are a storage apparatus and its control method capable of performing power saving operations while covering the shortcomings of a flash memory such as the life being short and much time being required for rewriting data. This storage apparatus manages the storage areas provided by each of multiple nonvolatile memories as a pool, provides a virtual volume to a host computer, dynamically allocates the storage area from a virtual pool to the virtual volume according to a data write request from the host computer for writing data into the virtual volume, and places the data in the allocated storage area.