Storage apparatus and fan control method and fan control program of storage apparatus

• US 20060232914A1
• Filed: 06/15/2005
• Published: 10/19/2006
• Est. Priority Date: 04/14/2005
• Status: Active Grant

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Honda, Kiyoshi, Hori, Masanori
• Granted Patent: US 7,444,554 B2
• Time in Patent Office: Days
• US Class Current: 361/676
• CPC Class Codes: G06F 1/20 Cooling means

Abstract

This invention provides a storage apparatus for inhibiting temperature increase in a chassis caused when a cooling fan or a module is detached and replaced due to the failure thereof. The storage apparatus comprises a controller for controlling data transfer, a power source supplying a power to a hard disk drive and the controller and having a fan, and a base chassis. The controller monitors a state of other controller and the power source, rotates the fan of the power source corresponding to the module in which a failure is detected at a first high speed higher than a normal rotational speed when detecting the failure of the other controller or the power source, and rotates the fan rotated at the first high speed at a second high speed higher than the first high speed when detecting the detachment of the module in which the failure is detected.

Claims

1. A storage apparatus comprising:

two or more controller modules controlling a data transfer with a host machine and a data transfer with a physical memory device;

two or more power source modules supplying a power to said physical memory device and said controller modules and having a fan; and

a chassis storing said physical memory device, said controller modules and said power source modules,

wherein a first controller module of said two or more controller modules monitors a state of the other controller module and said power source module, rotates the fan of said power source module corresponding to the module in which a failure is detected at a first speed which is higher than a normal rotational speed when the failure of said other controller module and said power source module is detected, and rotates the fan rotated at said first speed at a second speed which is higher than said first speed when it is detected that said module in which the failure is detected is detached.

2. The storage apparatus according to claim 1,

wherein said chassis is provided with vent holes through which air generated by the fan of said power source module flows between said two controller modules, between said two power source modules and between said controller module and said power source module, and

said controller module and said power source module are provided with vent holes at positions corresponding to said vent holes of said chassis at a time when stored in said chassis.

3. The storage apparatus according to claim 1,

wherein said two or more controller modules are mounted two by two in a state where part mounting portions thereof face each other when stored in said chassis.

4. The storage apparatus according to claim 1,

wherein the first controller module of said two or more controller modules has a correspondence table showing a relation of the fan of said power source module which is to be rotated at a higher speed than the normal rotation for the failure of said other controller module and the power source module, and determines the fan of said power source module which is rotated at a higher speed than the normal rotation on the basis of said correspondence table when the failure of said other controller module and said power source module is detected.

5. The storage apparatus according to claim 1, further comprising:

two or more cooling modules having a fan for cooling said physical memory devices and said controller modules,

wherein said chassis stores said physical memory devices, said controller modules, said cooling modules and said power source modules, and

the first controller module of said two or more controller modules monitors a state of other controller module, said cooling modules and said power source modules, rotates the fan of said cooling module and the fan of said power source module corresponding to the module in which a failure is detected at a first speed which is higher than a normal rotational speed when the failure of each of the modules is detected, and rotates the fan rotated at said first speed at a second speed which is higher than said first speed when it is detected that said module in which the failure is detected is detached.

6. A fan control method of a storage apparatus provided with two or more controller modules controlling a data transfer with a host machine and a data transfer with a physical memory device, two or more power source modules supplying a power to said physical memory device and said controller module and having a fan, and a chassis storing said physical memory device, said controller modules and said power source modules, said method comprising the steps of:

monitoring a state of said controller module and said power source module;

rotating the fan of said power source module corresponding to the module in which a failure is detected at a first speed which is higher than a normal rotational speed when the failure of said controller module and said power source module is detected; and

rotating the fan rotated at said first speed at a second speed which is higher than said first speed when it is detected that said module in which the failure is detected is detached.

7. The fan control method of a storage apparatus according to claim 6,

wherein, when determining the fan of said power source module corresponding to the module in which the failure is detected, the determination is made based on a correspondence table showing a relation of the fan of said power source module which is to be rotated at a higher speed than the normal rotation for the failure of said controller module and said power source module.

8. A fan control program for controlling a fan of a storage apparatus provided with two or more controller modules controlling a data transfer with a host machine and a data transfer with a physical memory device, two or more power source modules supplying a power to said physical memory device and said controller module and having a fan, and a chassis storing said physical memory device, said controller modules and said power source modules,

wherein, in order to control the fan of said power source module, a processing portion in said controller module is operated as a fan control portion which monitors a state of other controller module and said power source module, rotates the fan of said power source module corresponding to the module in which a failure is detected at a first speed which is higher than a normal rotational speed when the failure of said other controller module and said power source module is detected, and rotates the fan rotated at said first speed at a second speed which is higher than said first speed when it is detected that said module in which the failure is detected is detached.

9. The fan control program according to claim 8,

wherein, when determining the fan of said power source module corresponding to the module in which the failure is detected, the processing portion in said controller module is operated as a fan control portion which makes a determination based on a correspondence table showing a relation of the fan of said power source module which is to be rotated at a higher speed than the normal rotation for the failure of said controller module and said power source module.