Method and system for controlling hard disk electrification in hard disk array

Abstract

The invention provides a method and a system for controlling hard disk electrification in a hard disk array. The method comprises the steps of detecting output current of a power module in real time, comparing the output current and a set first threshold value, adopting a preset first time interval to sequentially perform the electrification to each hard disk in the hard disk array when the output current is smaller than the set first threshold value, comparing the output current with a set second threshold value when the output current is larger than the set first threshold value, and adopting a preset second time interval to sequentially perform the electrification to each hard disk when the output current is larger than or equal to the first threshold value and smaller than the second threshold value, wherein the second threshold value is larger than the first threshold value, and the second time interval is larger than the first time interval. By means of the method and the system for controlling the hard disk electrification in the hard disk array, electrification impact current is controlled not to exceed power output limitation when the electrification is performed to the hard disk array, and electrification time of the whole hard disk array is short.

Description

technical field [0001] The invention relates to storage technology, in particular to a method and system for controlling power-on of a hard disk in a hard disk array. Background technique [0002] As the demand for storage space becomes larger and larger, hard disk arrays emerge as the times require. A hard disk array is usually used as an independent system directly connected to the host computer or connected to the host computer through a network. It is composed of multiple hard disks inside, and all the hard disks are usually powered by one or more power modules. There is usually an electric motor inside the mechanical hard disk, which is used to drive the rotation of the disk inside the hard disk. When the motor inside the hard disk starts to rotate when the power is turned on, an inrush current will be generated. If all the disks in the hard disk array are powered on at the same time, the huge inrush current may exceed the maximum output capacity of the power module, r...

AI Technical Summary

Problems solved by technology

However, if the time between two groups of hard disks is set too short or too long, the current may exceed the standard, or the accumulated power-on time of the hard disk array is very long, which affects the user experience

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