Magnetic disc array system and electric source protector

Abstract

A disc array system is prepared as forming power supply bus by setting power supply module on back plate, connecting power supply bus to power supply circuit for supplying power onto disc, arranging power supply protection unit on power supply circuit and using said unit to switch off power supply circuit when switching off signal is detected out by said unit. The power supply protection unit applying said disc array system is also disclosed.

Description

technical field [0001] The invention relates to an electronic protection circuit, more specifically, to a disk array system and a power protection device applied to the disk array system. Background technique [0002] Disk array (RAID, Redundant Array of Independent Disks) is a hard disk group formed by combining multiple independent hard disks according to specific rules. Compared with a single hard disk, this hard disk group has large storage space, fast access speed and security. The advantages of high coefficient. [0003] In recent years, with the continuous development of information technology, disk arrays are often used to store key data. Therefore, how to improve the security of disk arrays has become the focus of attention. Since the disk itself is a product with a relatively high failure rate, it is usually necessary to use a redundant design of multiple disks on the disk array to ensure that the entire system will not be affected by the failure of a single disk....

AI Technical Summary

Problems solved by technology

Although the redundant configuration of the power supply module enhances the stability of the power supply of the whole system, the centralized power supply direct connection solution also has the following disadvantages: 1. The power-on and plug-in of the disk will have an impact on the system power supply, which may cause fluctuations in the system power supply; 2. The power supply The module can only provide overvoltage and overcurrent protection for the entire system, but cannot provide protection for a single disk. Therefore, when a single disk power supply is overcurrent, it will trigger the overcurrent protection mechanism of the system power supply, causing the entire disk array to be powered off.

However, the PTC thermistor protection scheme also has the following disadvantages: 1. The power-on or online plug-in of the disk will have an impact on the system power supply, which will cause fluctuations in the system power supply; The response time is too long, and the overcurrent protection mechanism of the power module works before the thermistor, causing the disk array to be powered off

[0008] Therefore, neither the centralized power supply direct connection loop scheme nor the PTC thermistor protection scheme can completely eliminate the potential failure of the disk array power system

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