Storage device and performance measurement method for the same

• US 20090307534A1
• Filed: 09/12/2008
• Published: 12/10/2009
• Est. Priority Date: 06/05/2008
• Status: Active Grant

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Uchiyama, Takashi, Morimoto, Hiroyuki, Sakuramoto, Manabu
• Granted Patent: US 7,954,013 B2
• Time in Patent Office: Days
• US Class Current: 714/47
• CPC Class Codes: G06F 11/3409 for performance assessment
• CPC Class Codes: G06F 11/3485 for I/O devices
• CPC Class Codes: G06F 2201/88 Monitoring involving counting
• CPC Class Codes: G06F 2201/885 Monitoring specific for caches

Abstract

A storage system including a maintenance terminal, at least one disk drive, and a plurality of volumes that are provided by the at least one disk drive, and each store therein data written by the plurality of host devices. In this storage system, the maintenance terminal sets information for use to measure the performance of the storage device, and the storage device acquires the set information, measures the performance of the storage device with respect to the data stored in the plurality of volumes based on the information, and transmits, to the maintenance terminal, performance information about the performance being a measurement result. The storage system as such can collect information about the performance of a storage device that is not measurable from the side of the host devices, and a method for collecting such performance information can be provided.

Claims

1. A storage system including a storage device, a maintenance terminal for maintenance use of the storage device, and a plurality of host devices with respect to the storage device, wherein

the maintenance terminal includes

a setting section that sets information for use to measure performance of the storage device, and

the storage device includes:

at least one disk drive;

a plurality of volumes that are provided by the at least one disk drive, and each store therein data written by the plurality of host devices;

a measurement section that acquires the information set by the setting section, and based on the information, measures the performance of the storage device with respect to the data stored in the plurality of volumes; and

a transmission section that transmits, to the maintenance terminal, performance information about the performance being a measurement result by the measurement section.

2. The storage system according to claim 1, wherein the information set by the setting section includes information for designating any of the plurality of volumes as a measurement target.

3. The storage system according to claim 2, wherein

the performance of the storage device includes reading of the data stored in the volume being the measurement target by the plurality of host devices, and writing of the data to the volume being the measurement target by the plurality of host devices, or includes either the reading or the writing.

4. The storage system according to claim 1, wherein

the maintenance terminal includes a display device, and

setting details of the information by the setting section are acquired based on an input by a user made in accordance with a screen of the display device, and the performance information provided by the transmission section is displayed on the display device.

5. The storage system according to claim 4, wherein

based on a command issued by the user, the maintenance terminal closes the screen for the setting of the information after transmission of the information to the storage device, and after display of a message notifying measurement completion of the performance on the screen, displays the performance information on the display device based on a command issued by the user.

6. The storage system according to claim 1, wherein

the information to be set by the setting section is either first information with default-set parameters or second information with user-designated parameters.

7. A performance measurement method of a storage system including a storage device, a maintenance terminal for maintenance use of the storage device, and a plurality of host devices with respect to the storage device, wherein

the storage device includes:

at least one disk drive; and

a plurality of volumes that are provided by the at least one disk drive, and each store therein data written by the plurality of host devices, and

the method comprising the steps of;

setting, by the maintenance terminal, information for use to measure performance of the storage device; and

acquiring, by the storage device, the set information, measuring the performance of the storage device with respect to the data stored in the plurality of volumes based on the information, and transmitting, to the maintenance terminal, performance information about the performance being a measurement result.

8. A storage system including a storage device, a maintenance terminal for maintenance use of the storage device, and a plurality of host devices with respect to the storage device, wherein

the maintenance terminal includes

a setting section that sets information for use to measure performance of the storage device,

the storage device includes:

at least one disk drive;

a plurality of volumes that are provided by the at least one disk drive, and each store therein data written by the plurality of host devices;

a detection section that detects any change made to information about a configuration of the storage system;

a measurement section that acquires, when the change of the configuration is detected by the detection section, information set by the setting section, and based on the information, measures the performance of the storage device with respect to the data stored in the plurality of volumes; and

a transmission section that transmits, to the maintenance terminal, performance information about the performance being a measurement result by the measurement section.

9. The storage system according to claim 8, wherein

the change of the configuration information includes updating of a program stored in the storage device.

10. The storage system according to claim 8, wherein

the change of the configuration information includes a paired combination among the plurality of volumes.