CN107423180A - A kind of solid state hard disc and its diagnostic method - Google Patents

Abstract

The invention discloses a solid-state hard disk, which comprises a single-chip microcomputer, a flash memory controller with an internal debugging port and an external interface. The internal debugging port is connected with the single-chip microcomputer to send log information of the flash memory controller to the single-chip microcomputer. It can be seen that when the management interface PICE of the solid-state hard disk hangs, or even the solid-state hard disk hangs directly, the log information of the flash memory controller can be transmitted to the microcontroller in real time through the internal debugging port of the flash memory controller, and the host accesses the microcontroller to get Log information, the problem of the solid-state hard disk can be determined through the log information, unlike the existing technology that needs to remove the solid-state hard disk, and then send it back to the original manufacturer. A dedicated debug port pinpoints solid-state drive issues, improving time-to-resolution. In addition, the present invention also provides a diagnostic method for solid-state hard disks, with the effects as above.

Description

A kind of solid state hard disk and diagnosis method thereof

technical field

The invention relates to the field of network applications, in particular to a solid state hard disk and a diagnosis method thereof.

Background technique

With the popularity of the Internet, almost everyone can access websites and obtain information through the Internet, such as through mobile phones and computers. It has become everyone's nightmare to use the Internet to buy limited products in seconds. Therefore, the amount of information generated by the Internet is relatively large every day. In order to avoid website paralysis when a large number of users visit the website in an instant, the relevant data center will increase the number of servers equipped with solid-state drives, and the website background will also be equipped with an all-flash array. An all-flash array is an independent storage array or device that is entirely composed of solid-state storage media. With the massive application of solid-state drives in data centers, the maintenance of solid-state drives has become a problem that information technicians have to face.

Please refer to FIG. 1 , which is a schematic diagram of the interior of a solid state disk 10 in the prior art. As shown in Figure 1, the interior of solid-state hard disk 10 generally includes a flash memory controller 101 and a single-chip microcomputer 102, and the host computer can carry out the interaction of data and management information with PCI-E interface and SMbus interface of solid-state hard disk 10 respectively through external interface 103, When the PCI-E interface of the solid-state hard disk 10 hangs up, or even the whole solid-state hard disk 10 hangs up, generally the host computer cannot exchange information with the solid-state hard disk through the PCI-E interface, which is equivalent to the flash memory controller 101 being hung up. If the flash memory controller 101 is reset, it can be restarted normally next time, and the cause of the last abnormal problem may not be clear; Or remove it from the all-flash array, and then send it back to the original manufacturer. The original manufacturer's engineer will disassemble the hard disk and use the dedicated internal debugging port 1011 inside the hard disk to locate the problem. This traditional method of locating solid-state disk problems is time-consuming and labor-intensive, and the timeliness of solving problems is low.

It can be seen that how to overcome the problem of low timeliness caused by the complicated process in the process of locating the problem of the solid state disk is an urgent problem to be solved by those skilled in the art.

Contents of the invention

Embodiments of the present application provide a solid-state hard disk and a diagnosis method thereof, so as to solve the problem of low timeliness in solving problems in the prior art.

In order to solve the above-mentioned technical problems, the present invention provides a solid-state hard disk, including a single-chip microcomputer, a flash memory controller with an internal debugging port and an external interface, and the internal debugging port is connected with the single-chip microcomputer so that the log information of the flash memory controller sent to the microcontroller.

Preferably, the internal debugging port includes a JTAG interface and a UART interface.

Preferably, the single-chip microcomputer is connected to the external interface through a system management bus SMbus interface.

Preferably, the single-chip microcomputer has two interfaces, namely a first interface and a second interface: the first interface is used to obtain the operation information of the single-chip microcomputer; the second interface is used to transmit the log information .

Preferably, the flash memory controller is connected to the external interface through the system management bus SMbus interface and PCI-E interface.

In order to solve the above-mentioned technical problems, the present invention also provides a diagnostic method for a solid-state hard disk, comprising:

Carry out address definition to the flash memory controller and the single-chip microcomputer in the described solid-state hard disk in advance;

accessing said flash memory controller;

Judging whether the access is normal, if not, accessing the single-chip microcomputer to obtain the log information of the flash memory controller; wherein, the single-chip microcomputer obtains the log information through the internal debugging port of the flash memory controller.

Preferably, the access to the flash memory controller is specifically accessed through a PCI-E interface.

Preferably, the accessing single-chip microcomputer specifically accesses through a system management bus SMbus interface.

Preferably, the pre-defining addresses of the flash memory controller and the single-chip microcomputer in the solid-state hard disk include: performing address definition on the system management bus SMbus interface corresponding to the flash memory controller and the system management bus SMbus interface corresponding to the single-chip microcomputer .

Preferably, the accessing the single-chip microcomputer to obtain the log information of the flash memory controller specifically includes: accessing the single-chip microcomputer through the second interface of the single-chip microcomputer to obtain the log information of the flash memory controller; wherein, the The single-chip microcomputer has a first interface and a second interface, the first interface is used to obtain the operation information of the single-chip microcomputer; the second interface is used to transmit the log information.

Compared with the prior art, in the solid-state hard disk and its diagnosis method provided by the present invention, the internal debugging port of the flash memory controller in the solid-state hard disk is connected with the single-chip microcomputer in the solid-state hard disk. It can be seen that when the management interface PICE of the solid-state hard disk hangs, or even the solid-state hard disk hangs directly, the log information of the flash controller can be transmitted to the microcontroller in real time through the internal debugging port of the flash controller, and the host accesses the microcontroller to get Log information, the problem of the solid-state drive can be determined through the log information, unlike the prior art that requires the solid-state drive to be removed from the server or the all-flash array, and then sent back to the original manufacturer, the original manufacturer’s engineer will The hard disk is disassembled, and the dedicated debugging port inside the hard disk is used to determine the problem of the solid-state hard disk, thereby improving the timeliness of solving the problem.

Description of drawings

FIG. 1 is an internal schematic diagram of a non-volatile memory standard solid-state hard disk in the prior art;

Fig. 2 is a schematic diagram of the interior of a solid-state hard disk provided by an embodiment of the present invention;

FIG. 3 is a flowchart of a diagnostic method for a solid state disk provided by an embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The core of the invention is to provide a solid-state hard disk and its diagnosis method, which can improve the timeliness of solving problems.

In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Figure 2 is a schematic diagram of the interior of a solid-state hard disk provided by an embodiment of the present invention. As shown in Figure 2, a solid-state hard disk 10 provided by an embodiment of the present invention includes a single-chip microcomputer 102, a flash memory controller 101 with an internal debugging port, and an external interface 103 , the internal debugging port 1011 is connected to the single-chip microcomputer 102 to send the log information of the flash memory controller 101 to the single-chip microcomputer 102 .

The solid-state hard disk 10 sometimes hangs up during use, that is, the flash memory controller 101 inside the solid-state hard disk 10 hangs up, because the internal debugging port 1011 on the flash memory controller 101 inside the solid-state hard disk 10 is connected to the single-chip microcomputer 102 inside the solid-state hard disk 10 , the single-chip microcomputer 102 can use the internal debugging port 1011 to collect relevant information of the flash memory controller 101, such as log information, and at this time, the host computer can obtain the log information of the flash memory controller 101 through the single-chip microcomputer 102 inside the solid-state hard disk 10, and implement the solid-state hard disk 10 problem diagnosis. The log information may be the health information of the internal controller 101, or the problem information generated before the internal controller 101 hangs up. It can be understood that there are many types of log information, which will not be repeated here. The external interface 103 can be an interface that meets the requirements. Which interface to choose can be determined according to the actual situation. In the embodiment of the present application, the external interface can choose the standard definition interface SFF-8639. Of course, the selection of the external interface 103 does not affect this application. The implementation of the application embodiment.

The solid-state hard disk provided by this embodiment, when the solid-state hard disk directly hangs up, can transmit the log information of the flash memory controller to the single-chip microcomputer in real time through the internal debugging port of the flash memory controller, and the host can obtain the log information by accessing the single-chip microcomputer, and use The log information determines the problem of the solid-state drive, and no longer needs to remove the solid-state drive separately, and then send it back to the original manufacturer, which improves the maintainability of the solid-state drive, saves some time, and improves the timeliness of problem solving sex.

On the basis of the above embodiments, as a preferred implementation manner, the internal debugging port includes a JTAG interface and a UART interface.

JTAG is a standard communication port, that is, a dedicated serial communication port, which can be used to transmit log information of the flash memory controller 101 to realize information transmission between the flash memory controller 101 and the single-chip microcomputer 102 . UART is a Universal Asynchronous Transfer Transceiver, which can realize full-duplex transmission and reception. Full-duplex means that the two-way transmission of signals can be carried out at the same time. For example, the signal can be transmitted in both directions between A and B at the same time, that is, the information from A to B and B to A is carried out at the same time, and parallel data can also be converted into serial For data, when information is transmitted, additional signals indicating sending and receiving can be generated. The solid-state hard disk provided in this embodiment adopts JTAG interface and UART interface to transmit information with high efficiency. It can be understood that, in addition to the above two types of interfaces, other types of interfaces may also be used, which will not be described in detail in this embodiment.

On the basis of the above embodiments, as a preferred implementation manner, the single chip microcomputer 102 is connected to the external interface 103 through a system management bus SMbus interface.

There are corresponding SMbus interfaces (system management bus) on the single-chip microcomputer 102 and the external interface 103. The solid-state hard disk provided by this embodiment adopts the SMbus interface without adding additional pins, and the data transmission efficiency is high.

On the basis of the above-mentioned embodiments, as a preferred implementation mode, the single-chip microcomputer 102 has two interfaces, which are respectively a first interface and a second interface: the first interface is used to obtain the operation information of the single-chip microcomputer 102; the second interface is used to Transfer log information.

There are two SMbus interfaces on the single-chip microcomputer 102, and the first interface directly obtains the information generated when the single-chip microcomputer 102 runs. It may be the key information of the relevant product, or it may be the health information of the relevant network. It is understandable that in addition to these two kinds of information, it may also be other relevant information, which will not be repeated here. The second interface can transmit the log information of the flash memory controller 101, that is, real-time online diagnosis can be performed on the solid-state hard disk 10 through the second SMbus interface. The solid-state hard disk provided in this embodiment realizes various functions of the SMbus interface, and improves the feasibility of online diagnosis when the solid-state hard disk fails. The first interface and the second interface are defined according to people's habits and are not fixed. They can be changed according to personal preferences. The naming method of the interfaces will not affect the implementation of the embodiment of the present application.

On the basis of the above embodiments, as a preferred implementation manner, the flash memory controller 101 is connected to the external interface 103 through an SMbus interface and a PCI-E interface.

When the solid-state hard disk 10 is normal, the host can directly interact with the flash memory controller 101 in the solid-state hard disk 10 through the PCI-E interface link, that is, the host can directly obtain the log information of the flash memory controller 101. The data transfer process of SSD is simple.

The embodiment of the solid state disk is described in detail above, and the embodiment of the present invention also provides a diagnosis method corresponding to the solid state disk. Since the embodiments of the diagnosis method part correspond to the embodiments of the solid-state hard disk part, please refer to the description of the embodiments of the solid-state hard disk part for the embodiments of the diagnosis method part, and details will not be repeated here.

Fig. 3 is a flow chart of a diagnostic method for a solid-state hard disk provided by an embodiment of the present invention, as shown in Fig. 3 , including the following steps:

Step S301: pre-defining the addresses of the flash memory controller and the single-chip microcomputer in the solid state disk.

In order to prevent address conflicts between the flash memory controller and the microcontroller module, it is necessary to define its address in advance.

Step S302: Access the flash memory controller.

Under normal circumstances, the information exchange between the host and the solid-state hard disk is through accessing the flash memory controller in the solid-state hard disk, and directly accessing the flash memory controller in the solid-state hard disk through the PCI-E interface to realize the information interaction between the host and the solid-state hard disk . Of course, other interface protocols that meet the requirements can also be used to access the flash memory controller. Using the PCI-E interface is only a preferred method, and does not mean that it is the only one.

Step S303: judge whether the access is normal, if not, go to step S304.

Step S304: accessing the single-chip microcomputer to obtain the log information of the flash memory controller.

The host first accesses the flash memory controller through the PCI-E interface link, and then exchanges information with the solid-state drive. If the connection times out and fails after several attempts, it means that there is a problem with the PCI-E interface link or the flash memory controller. It hangs up, that is, the visit is not normal. If the link cannot be accessed through the PCI-E interface, the host will access the single-chip microcomputer in the solid-state hard disk through the SMbus interface, and the single-chip microcomputer can obtain the log information of the flash memory controller through the internal debugging port of the flash memory controller, so the final host can Get log information for the flash controller.

Relevant staff will analyze the obtained log information, and if the problem of the solid-state hard disk hanging can be determined according to the log information and the solid-state hard disk can be restarted without data loss, the solid-state hard disk will be reset and restarted. If the problem of the solid-state hard disk cannot be determined according to the log information, the host will send relevant instructions to the microcontroller through the SMbus interface. log information from the controller until the source of the SSD problem is found. The instructions issued by the host to the MCU may only be applicable to the MCU, but not to the flash memory controller, so the MCU needs to perform protocol conversion on the relevant instructions issued by the host.

The solid-state hard disk diagnosis method provided by the present embodiment defines the address of the flash memory controller and the single-chip microcomputer in the solid-state hard disk in advance; Log information; Among them, the single-chip microcomputer obtains the log information through the internal debugging port of the flash memory controller. It can be seen that when the PICE interface of the solid-state hard disk hangs, or even the solid-state hard disk hangs directly, the log information of the flash memory controller can be transmitted to the MCU in real time through the internal debugging port of the flash memory controller, and the host can access the MCU to get the log information. Information, the problem of the solid-state hard disk can be determined through the log information, unlike the existing technology that needs to remove the solid-state hard disk from the server or the all-flash array, and then send it back to the original manufacturer. Disassemble, and use the special debugging port inside the hard disk to determine the problem of the solid-state hard disk, thereby improving the timeliness of solving the problem.

On the basis of the above-described embodiments, as a preferred embodiment, pre-defining the addresses of the flash memory controller and the single-chip microcomputer in the solid-state hard disk includes: the system management bus SMbus interface corresponding to the flash memory controller and the system management bus SMbus interface corresponding to the single-chip microcomputer Perform address definition.

Define the address of the SMbus interface corresponding to the flash memory controller and the microcontroller, in order to prevent conflicts between the addresses of each interface.

On the basis of the foregoing embodiments, as a preferred implementation manner, accessing the single-chip microcomputer to obtain the log information of the flash memory controller is specifically: accessing the single-chip microcomputer through the second interface of the single-chip microcomputer to obtain the log information of the flash memory controller; wherein the single-chip microcomputer has The first interface and the second interface, the first interface is used to obtain the operation information of the single-chip microcomputer; the second interface is used to transmit log information.

The first interface and the second interface are SMbus interfaces corresponding to the above, and two SMbus interfaces are provided on the single-chip microcomputer to realize different functions. The first interface and the second interface are artificially defined according to custom and are not fixed. Of course, the naming method of the interface will not affect the realization of the embodiment of the present application.

The solid state hard disk provided by the present invention and the diagnosis method thereof are introduced in detail above. In this paper, several examples are used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; meanwhile, for those of ordinary skill in the art, according to the present invention There will be changes in the specific implementation and scope of application. In summary, the content of this specification should not be understood as a limitation of the present invention. The modifications, equivalent replacements, improvements, etc. made shall be included in this application.

Claims (10)

1. a solid-state hard disk, is characterized in that, comprises single-chip microcomputer, has the flash memory controller and the external interface of internal debug port, and described internal debug port is connected with described single-chip microcomputer so that the log information of described flash memory controller is sent to described microcontroller. 2. The solid state disk according to claim 1, wherein the internal debugging port comprises a JTAG interface and a UART interface. 3. The solid-state hard disk according to claim 1, wherein the single-chip microcomputer is connected to the external interface through a system management bus SMbus interface. 4. The solid-state hard disk according to any one of claims 1-3, wherein the single-chip microcomputer has two interfaces, which are respectively a first interface and a second interface: The first interface is used to obtain the operation information of the single-chip microcomputer; The second interface is used to transmit the log information. 5. The solid state disk according to claim 1, wherein the flash memory controller is connected to the external interface through the system management bus SMbus interface and the PCI-E interface. 6. A diagnostic method for a solid-state hard disk, based on the solid-state hard disk according to any one of claims 1-5, characterized in that, comprising: Carry out address definition to the flash memory controller and the single-chip microcomputer in the described solid-state hard disk in advance; accessing said flash memory controller; Judging whether the access is normal, if not, accessing the single-chip microcomputer to obtain the log information of the flash memory controller; Wherein, the single-chip microcomputer obtains the log information through an internal debugging port of the flash memory controller. 7. The method according to claim 6, wherein the access to the flash memory controller is specifically accessed through a PCI-E interface. 8. The method according to claim 6, wherein the accessing single-chip microcomputer is specifically accessed through a system management bus SMbus interface. 9. The method according to claim 8, characterized in that, defining addresses of the flash memory controller and the single-chip microcomputer in the solid-state hard disk in advance comprises: defining the system management bus SMbus interface and the corresponding system management bus SMbus interface of the flash memory controller Define the address of the system management bus SMbus interface corresponding to the single-chip microcomputer. 10. The method according to claim 6, wherein the accessing the single-chip microcomputer to obtain the log information of the flash memory controller is specifically: Accessing the single-chip microcomputer through the second interface of the single-chip microcomputer to obtain log information of the flash memory controller; Wherein, the single-chip microcomputer has a first interface and a second interface, the first interface is used to obtain the operation information of the single-chip microcomputer; the second interface is used to transmit the log information.