CN113064877B - Big data interaction method and system for server multi-level management unit - Google Patents

Abstract

The invention provides a big data interaction method and a big data interaction system for a server multi-level management unit, wherein the method comprises the steps of establishing a virtual disk and a file system at a second-level BMC (baseboard management controller) end and mounting the file system; the second-level BMC creates a virtual USB device and redirects the USB device to the first-level BMC; and copying data between the first-level BMC and the second-level BMC based on the virtual USB device. The invention uses the memory of the second-level BMC to register the virtual USB device and redirect to the Host end (the first-level management unit), and the first-level BMC can directly copy the big data file to the memory of the second-level BMC like accessing the memory space of the first-level BMC, thereby realizing the high-efficiency interaction of the big data file between the two-level management units. Through actual measurement, the data interaction time of the scheme is shorter than 30 seconds, and compared with the time consumption of the existing I2C, the transmission rate is obviously improved.

Description

Big data interaction method and system for server multi-level management unit

technical field

The invention relates to the technical field of server data interaction, in particular to a large data interaction method and system of a server multi-level management unit.

Background technique

BMC (Baseboard Management Controller, Baseboard Management Controller) is the management unit of the server system. Its main functions are server hardware monitoring and fault alarm, heat dissipation speed regulation, power management and firmware upgrade, etc. Generally, only the first-level management unit is set on the general-purpose server motherboard, while the second-level management unit is usually set up on the pooled server system, and the first-level management unit and the second-level management unit often need to perform large-scale operations such as log files and firmware mirroring. Data interaction, the big data interaction method is related to the improvement of management efficiency between multi-level management units.

In the existing solution, the big data interaction between multi-level management units is mostly through I2C interaction. During hardware design, it is necessary to connect the I2C signals between the two-level management units. When the two-level management units interact with each other, they can directly communicate through I2C reading and writing or IPMB (Intelligent Platform Management Bus, Intelligent Platform Management Bus) interface protocol.

The transmission efficiency of existing interactive schemes is low, and large data needs to be transmitted multiple times in segments. Due to the limitation of processing such as interruption and waiting in the drive, the actual transmission rate is far below the set I2C frequency. The measured 32M data transmission time is about 15 minutes. The transfer rate is slow.

Contents of the invention

The invention provides a large data interaction method and system of a multi-level management unit of a server, which are used to solve the problem of low data interaction rate in the prior art.

To achieve the above object, the present invention adopts the following technical solutions:

The first aspect of the present invention provides a method for interacting with large data of a server multi-level management unit, and the method includes the following steps:

Create a virtual disk and file system on the second-level BMC, and mount the file system;

The second-level BMC creates a virtual USB device and redirects the USB device to the first-level BMC;

Based on the virtual USB device, data copying between the first-level BMC and the second-level BMC is performed.

Further, steps are also included before creating a virtual disk at the second-level BMC end of the step:

Establish the hardware connection of the USB port between the two levels of BMCs.

Further, the specific process of creating a virtual disk and a file system on the second-level BMC side and mounting the file system is as follows:

Copies the file in blocks of the specified size, and performs the specified transformation while copying;

Create a DOS file system;

Mount the file system to the /var/usb0 path.

Further, the second-level BMC creates a virtual USB device, and the specific process of redirecting the USB device to the first-level BMC is:

Load the USB driver, obtain and fill the USB descriptor, and register the path of the system file as a virtual USB device;

Send a USB connection command to redirect the USB device.

Further, after the steps carry out the redirection of the USB device, it also includes:

The first-level BMC driver identifies the USB device, and mounts the USB device to the /var/usb0 directory of the first-level BMC.

Further, said copying data between the first-level BMC and the second-level BMC based on the virtual USB device includes copying data from the first-level BMC to the second-level BMC and from the second-level BMC to the first-level BMC data copy.

Further, the specific process of data copying from the first-level BMC to the second-level BMC is:

The first-level BMC copies the data files to be interacted with to the /var/usb0 directory;

Execute the sync command to write all the data buffered in the disk to the disk of the second-level BMC.

Further, the specific process of copying data from the second-level BMC to the first-level BMC is:

The second-level BMC copies the data files to be interacted with to the USB virtual disk;

Mount the data files in the virtual disk to the first-level BMC.

Further, after the data copy is completed, further steps are included:

Uninstall the virtual BMC device, process the data files received in the /var/usb0 directory, and release the memory space.

The second aspect of the present invention provides a server multi-level management unit big data interaction system, including a first-level BMC and a second-level BMC, the first-level BMC includes an instruction sending unit and a data sending unit, and the instruction sending unit For sending operation instructions to the second-level BMC, the data sending unit is used to send data to the second-level BMC; the second-level BMC includes a device creation unit, and the device creation unit is based on the instruction of the instruction sending unit , creating a virtual USB device on the second-level BMC, and redirecting the USB device to the first-level BMC, where the virtual USB device is used to receive data sent by the first-level BMC.

The effects provided in the summary of the invention are only the effects of the embodiments, rather than all the effects of the invention. One of the above technical solutions has the following advantages or beneficial effects:

The present invention registers the virtual USB device with the memory of the second-level BMC and redirects it to the Host end (the first-level management unit). The first-level BMC can directly copy large data files to the second-level BMC as accessing its own memory space. memory, so as to realize the efficient interaction of large data files between the two management units. According to the actual measurement, the data interaction time using this solution is less than 30 seconds, and the transmission rate has been significantly improved compared with the existing I2C. At the same time, when there is only one I2C communication between multi-level management units, it can reduce the heat dissipation risk caused by the long interaction time of big data, and improve the system robustness.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, In other words, other drawings can also be obtained from these drawings on the premise of not paying creative work.

Fig. 1 is a schematic diagram of the method of the present invention;

Fig. 2 is a schematic structural diagram of the system of the present invention.

Detailed ways

In order to clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation modes and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. It should be noted that components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted herein to avoid unnecessarily limiting the present invention.

As shown in Figure 1, a method for interacting with big data of a server multi-level management unit in the present invention comprises the following steps:

S1, create a virtual disk and a file system on the second-level BMC side, and mount the file system;

S2, the second-level BMC creates a virtual USB device, and redirects the USB device to the first-level BMC;

S3. Based on the virtual USB device, copy data between the first-level BMC and the second-level BMC.

Before the step S1, a step is also included: establishing a hardware connection of the USB port between the two levels of BMCs. Specifically, the USB PortA of the second-level management unit BMC is connected with the USB PortB of the first-level management unit BMC, and the signal is added to the data cable.

In step S1, the first-level BMC sends the IPMI command-Create Image to the second-level BMC through I2C, and the second-level BMC executes the operation of creating a virtual disk and a file system, and mounting the file system, specifically including executing dd if=/dev/ zeroof="/var/usb.img" bs=64K count=1K, realize copying a file with blocks of specified size, and perform specified conversion while copying; execute mkdosfs -S 512-c

/var/usb.img, realize the creation of DOS file system; execute mount/var/usb.img/var/usb0, mount the file system to the path of /var/usb0.

The specific process of step S2 is: the first-level BMC sends the IPMI instruction-StartRedirection to the second-level BMC through I2C, and the second-level BMC loads the USB driver after receiving the instruction, then sends the driver instruction to obtain device information (descriptor), and fills the USB descriptor , register /var/usb.img as a virtual USB device, and then send the USB Connect command to realize USB device redirection. The USB driver on the Host side will automatically recognize the USB device and mount the device to the /var/usb0 directory on the Host side.

In step S3, based on the virtual USB device, data copying between the first-level BMC and the second-level BMC includes data copying from the first-level BMC to the second-level BMC and data copying from the second-level BMC to the first-level BMC .

The specific process of the data copying of the first-level BMC to the second-level BMC is: the first-level BMC will copy the data files to be interacted with under the /var/usb0 directory; execute the sync command to write all the data buffered by the disk into the second level The disk of the secondary BMC.

The specific process of the data copy of the second-level BMC to the first-level BMC is: the second-level BMC copies the data files to be interacted with to the USB virtual disk; the data files in the virtual disk are mounted to the first-level BMC .

After the data copy is completed, further steps are included: unloading the virtual BMC device, processing the data files received in the /var/usb0 directory, and freeing up memory space. Specifically: the first-level BMC sends an IPMI command (StopRedirection) to the second-level BMC through I2C, and the second-level BMC sends a termination signal after receiving the command, sends a USB Disconnect command to the driver and disables the USB device. The first-level BMC sends an IPMI command (Delete Image) to the second-level BMC through I2C, and the second-level BMC processes the data files received in the /var/usb0 directory after receiving the command, and then releases the memory space.

As shown in FIG. 2 , a server multi-level management unit big data interactive system of the present invention includes a first-level BMC1 and a second-level BMC2. The first level BMC1 comprises instruction transmission unit 11 and data transmission unit 12, and described instruction transmission unit 11 is used for sending operation instruction to second level BMC2, and described data transmission unit 12 is used for sending data to second level BMC2; The second-level BMC2 includes a device creation unit 21, and the device creation unit creates a virtual USB device 22 at the second-level BMC2 end based on the instruction of the instruction sending unit, and redirects the USB device 22 to the first-level BMC1, so that The virtual USB device 22 is used to receive the data sent by the first-level BMC1.

The above-mentioned server multi-level management unit big data interaction system can realize each step of the method and achieve the same effect.

Although the specific implementation of the present invention has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the present invention. Those skilled in the art should understand that on the basis of the technical solution of the present invention, those skilled in the art do not need to pay creative work Various modifications or variations that can be made are still within the protection scope of the present invention.

Claims (7)

1. a server multi-level management unit big data interaction method, it is characterized in that, described method comprises the following steps: Create a virtual disk and file system on the second-level BMC, and mount the file system; The second-level BMC creates a virtual USB device and redirects the USB device to the first-level BMC; Based on the virtual USB device, copy data between the first-level BMC and the second-level BMC; The specific process of creating a virtual disk and file system on the second-level BMC and mounting the file system is as follows: Copies the file in blocks of the specified size, and performs the specified transformation while copying; Create a DOS file system; Mount the file system to the /var/usb0 path; The second-level BMC creates a virtual USB device, and the specific process of redirecting the USB device to the first-level BMC is: Load the USB driver, obtain and fill the USB descriptor, and register the path where the system file is located as a virtual USB device; Send a USB connection command to redirect the USB device; After the steps carry out the redirection of the USB device, it also includes: The first-level BMC driver identifies the USB device, and mounts the USB device to the /var/usb0 directory of the first-level BMC. 2. according to the described server multi-level management unit big data interaction method of claim 1, it is characterized in that, before described step second level BMC end creates virtual disk, also comprises the step: Establish the hardware connection of the USB port between the two levels of BMCs. 3. according to the described server multilevel management unit big data interactive method of claim 1, it is characterized in that, described based on described virtual USB device, carry out the data copy between the first level BMC and the second level BMC comprises the first level Data copy from BMC to second-level BMC and data copy from second-level BMC to first-level BMC. 4. according to the described server multilevel management unit big data interactive method of claim 3, it is characterized in that, the specific process of described first level BMC to the data copy of second level BMC is: The first-level BMC copies the data files to be interacted with to the /var/usb0 directory; Execute the sync command to write all the data buffered in the disk to the disk of the second-level BMC. 5. according to the described server multilevel management unit big data interactive method of claim 3, it is characterized in that, the specific process of described second level BMC to the data copy of first level BMC is: The second-level BMC copies the data files to be interacted with to the USB virtual disk; Mount the data files in the virtual disk to the first-level BMC. 6. According to any one of claims 1-5, the multi-level management unit big data interaction method of the server is characterized in that, after the data copy is completed, further comprising the steps of: Uninstall the virtual BMC device, process the data files received in the /var/usb0 directory, and release the memory space. 7. A server multi-level management unit big data interactive system, comprising first level BMC and second level BMC, it is characterized in that, described first level BMC comprises instruction sending unit and data sending unit, and described instruction sending unit uses For sending operation instructions to the second-level BMC, the data sending unit is used to send data to the second-level BMC; the second-level BMC includes a device creation unit, and the device creation unit is based on the instruction of the instruction sending unit, Create a virtual USB device at the second-level BMC end, and redirect the USB device to the first-level BMC, and the virtual USB device is used to receive data sent by the first-level BMC; The specific process of creating a virtual disk and file system on the second-level BMC and mounting the file system is as follows: Copies the file in blocks of the specified size, and performs the specified transformation while copying; Create a DOS file system; Mount the file system to the /var/usb0 path; The second-level BMC creates a virtual USB device, and the specific process of redirecting the USB device to the first-level BMC is: Load the USB driver, obtain and fill the USB descriptor, and register the path where the system file is located as a virtual USB device; Send a USB connection command to redirect the USB device; After the steps carry out the redirection of the USB device, it also includes: The first-level BMC driver identifies the USB device, and mounts the USB device to the /var/usb0 directory of the first-level BMC.

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