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A design method of hard disk indicator light based on dual-controller storage

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: 2018-06-19
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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  • A design method of hard disk indicator light based on dual-controller storage

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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 SGPIO signals and GPIO signals to CPLDs. 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 Expander 0 and Expander 1 described in this embodiment notify the CPLD respectively through a GPIO signal, and the GPIO signal has a pull-up resistor at the CPLD end, which is applied when an error occurs in its own storage path Notify the CPLD to switch the SGPIO signal source in time to avoid the abnormality of the hard disk indicator.

Embodiment 3

[0024] Such as figure 1 As shown, on the basis of Embodiment 2, the storage expansion module Expander 0 described in this embodiment connects the SGPIO_P signal and the GPIO_P signal to the CPLD, and the storage expansion module Expander 1 connects the SGPIO_S signal and the GPIO_S signal to the CPLD, two The SGPIO signal decoding method is communicated between the storage expansion module and the CPLD in the following ways:

[0025] 1) When the Expander 0 data link works normally, GPIO_P outputs 0; when the Expander 1 data link works normally, GPIO_S outputs 0, and the CPLD decodes the Expander 0 SGPIO signal;

[0026] 2) When the Expander 0 data link works abnormally (such as power failure / FW downtime), GPIO_P outputs 1; when the Expander 1 data link works normally, GPIO_S outputs 0, and the CPLD decodes the Expander 1 SGPIO signal;

[0027] 3) When the Expander 0 data link works normally, GPIO_P outputs 0; when the Expander 1 data link works abnormally, GPIO_S outputs 1, a...

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Abstract

The invention discloses a method for designing 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, and simultaneously the two storage expansion modules The heartbeat function of the storage expander is realized through I2C / UART, and the working status of the other party can be known in time. The hard disk indicator is managed by the storage expansion module. The invention does not need to be controlled by a storage controller, and can realize the correct execution of the hard disk indication signal of dual-control storage through the interaction between the storage expansion modules, and realize that the hard disk indicator can work normally when an error occurs in the storage link.

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 is usually managed by the storage controller (Storage controller). The storage controller is connected to the storage expansion module (SAS Expander). Serial Attached SCSI) signal is analyzed to know the working status of the hard disk, and the signal analysis device (CPLD&PSOC, etc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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