Double-control storage based HDD (hard disk drive) indicating light design method and module

A design method and indicator light technology, applied in carrier indication/alarm devices, computing, hardware monitoring, etc., can solve the problem that storage links are difficult to switch hard disk indicator lights normally

Active Publication Date: 2016-05-11
SHANDONG HAILIANG INFORMATION TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In high-end multi-channel servers, dual storage controllers and dual storage expansion modules can be used to realize the redundant design of storage links to improve system stability. The hard disk indicators are controlled by the storage controller. In practical application design, storage expansion modules are often , hard disk, and SGPIO signal analysis equipment integrated design (JBOD), and the storage controller is connected to the storage expansion module through the SAS signal. When there is a problem with the storage link, it is difficult to switch the hard disk indicator light normally.

Method used

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  • Double-control storage based HDD (hard disk drive) indicating light design method and module

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Embodiment 1

[0020] A design method for a hard disk indicator light based on dual-control storage. The method uses two storage expansion modules, and the two storage expansion modules simultaneously connect the SGPIO signal and the Swtich_GPIO signal to the CPLD. The / UART realizes the heartbeat function of the storage expander, and can know the working status of the other party in time without being controlled by the storage controller. The hard disk indicator is managed by the storage expansion module.

Embodiment 2

[0022] On the basis of Embodiment 1, the two storage expansion modules Expander0 and Expander1 described in this embodiment notify the CPLD through a GPIO signal respectively. This GPIO signal has a pull-up resistor at the CPLD end, and is used to notify the CPLD when an error occurs in its own storage path. Switch the SGPIO signal source in time to avoid abnormalities in the hard disk indicator.

Embodiment 3

[0024] Such as figure 1 As shown, on the basis of Embodiment 2, the storage expansion module Expander0 of this embodiment connects the SGPIO_P signal and the Swtich_GPIO_P signal to the CPLD, and the storage expansion module Expander1 connects the SGPIO_S signal and the Swtich_GPIO_S signal to the CPLD, and the two storage expansion The SGPIO signal decoding method is communicated between the module and the CPLD in the following ways:

[0025] 1) When the Expander0 data link works normally, Swtich_GPIO_P outputs 0; when the Expander1 data link works normally, Swtich_GPIO_S outputs 0, and the CPLD decodes the Expander0SGPIO signal;

[0026] 2) When the Expander0 data link works abnormally (such as power failure / FW down), Swtich_GPIO_P outputs 1; when the Expander1 data link works normally, Swtich_GPIO_S outputs 0, and the CPLD decodes the Expander1SGPIO signal;

[0027] 3) When the Expander0 data link works normally, Swtich_GPIO_P outputs 0; when the Expander1 data link works ...

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Abstract

The invention discloses a double-control storage based HDD (hard disk drive) indicating light design method. The method comprises steps as follows: two storage expansion modules are applied and connect SGPIO signals and Swtich_GPIO signals to a CPLD (complex programmable logic device) simultaneously, the heartbeat function of two storage expanders is realized by an I2C / UART (inter-integrated circuit / universal asynchronous receiver / transmitter), the working state of each other can be known timely, and an HDD indicating light is managed by the storage expansion modules. Control by a storage controller is not required, correct execution of double-control storage based HDD indicating signals can be realized through interaction of the storage expansion modules, and the indicating light can work normally when a storage link has an error.

Description

technical field [0001] The present invention relates to the technical field of hard disk storage, in particular to a design method and module for a hard disk indicator light based on dual-control storage, which can realize the correct execution of the hard disk indication signal of dual-control storage through interaction between storage expansion modules without the need for storage controller control . Background technique [0002] The hard disk indicator light indicates whether the hard disk is working normally, whether there is data writing / reading, orienting the hard disk plays an important role in the realization of the storage function. play a vital role. [0003] The hard disk indicator light is usually managed by the storage controller (Storage controller). The signal is analyzed to know the working status of the hard disk, and the signal analysis device (CPLD&PSOC, etc.) is notified through SGPIO (SerialGeneralPurposeInput / Output serial GPIO), and the analysis de...

Claims

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Application Information

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IPC IPC(8): G06F11/32G11B33/10
CPCG06F11/325G11B33/10
Inventor 慈潭龙张燕群
Owner SHANDONG HAILIANG INFORMATION TECH RES INST
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