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Switching method and switching system for physical layer of storage device

A storage device and switching system technology, which is applied in the fields of electrical digital data processing, generation of response errors, instruments, etc., which can solve the problems of wasting time and loss of hard disk information.

Inactive Publication Date: 2013-06-19
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of troubleshooting, it may lead to the loss of hard disk information, and also waste a lot of time

Method used

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  • Switching method and switching system for physical layer of storage device
  • Switching method and switching system for physical layer of storage device
  • Switching method and switching system for physical layer of storage device

Examples

Experimental program
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Embodiment Construction

[0015] like figure 1 As shown, it is a structure diagram of a preferred embodiment of the storage device physical layer switching system of the present invention.

[0016] The storage device physical layer switching system 10 runs in the computer 1, and the computer 1 also includes a RAID card 20, a SAS Expander device 30 and a hardware device 40, and the hardware device 40 can be a SAS Expander device 30, a hard disk, a SAS adapter or other terminal equipment. In this preferred embodiment, the storage device SAS Expander device 30 is taken as an example for introduction.

[0017] The RAID card 20 is connected to the SAS Expander device 30, and the SAS Expander device 30 communicates with one or more hardware devices 40 through ports of its physical layer (in the following description, the physical layer of the storage device is referred to as PHY for short). connection (only one is shown in the figure). When the hardware device 40 is a SAS Expander device 30 , one or more ...

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PUM

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Abstract

The invention provides a switching method and a switching system for a physical layer (PHY) of a storage device. The switching method comprises the steps: (1) detecting whether the working PHY of self adaptive system (SAS) Expander equipment is out of order or not, when the working PHY of the SAS Expander equipment is out of order, backing the parameters of a fault PHY, (2) selecting a reserved PHY for the fault physical layer PHY, (3) modifying the parameters of the backup fault PHY to generate a new firmware corresponding to the reserved PHY, writing the new firmware into the internal storage of the SAS Expander equipment, (4) detecting whether the reserved PHY of the SAS Expander equipment is out of order or not, if the reserved PHY of the SAS Expander equipment is out of order, judging whether the number of switching is smaller than threshold value or not, when the number of switching is smaller than the threshold value, backing the parameters of the fault PHY and reselecting a reserved PHY assigning to the fault PHY, and when the number of switching is larger than or equal to the threshold value, indicating that fault PHY switching is failure. By means of the switching method and the switching system for the physical layer of the storage device, the automatic switchover of the SAS Expander equipment from the fault PHY to the reserved PHY is achieved.

Description

technical field [0001] The present invention relates to a storage device physical layer switching method and system, in particular to a storage device physical layer switching method and system for a SAS Expander device. Background technique [0002] SAS refers to serial SCSI technology, and its full English name is Serial Attached SCSI (Small Computer System Interface, small computer system interface). SAS is a disk attachment technology. The physical layer (PHY) of the storage device is a logical concept, and its function is very similar to the Small Form-Factor Pluggable (SFP) in Fiber Channel. The overall behavior pattern of the digital signal and sent to the receiving end. When a SAS expander (Expander) device is damaged by static electricity or an external connection device, the PHY of the SAS Expander device will fail, and the SAS Expander device is a type of storage device. [0003] In the past, if a SAS Expander device (for example, LSI SAS 2X36) encountered a PH...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/00G06F11/07
Inventor 吴志偟
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD