CN104598005A - Design method of power consumption monitoring device of server system hard disk - Google Patents

Abstract

The invention discloses a method for designing a power consumption monitoring device for a server system hard disk. Its specific structure includes a hard disk, a BMC monitoring chip, a power consumption monitoring device Power Monitor, and a precision sensing resistor, wherein: the power consumption monitoring device Power Monitor is connected to the above precision sensing resistor, and convert the sampled current and voltage into power consumption values, and then output the power consumption data to the BMC of the system through the I2C interface; the BMC displays the total power consumption of the hard disk on the Web management system interface. Compared with the prior art, the design method of the power consumption monitoring device for the hard disk of the server system can monitor the total power consumption of the hard disk of the server system in real time and accurately, and the hard disk models on the system are not limited to one or several specific models , but can be replaced at will according to user needs, and the power consumption monitoring accuracy will not be affected after replacement, which is practical and easy to promote.

Description

Design method of power consumption monitoring device for server system hard disk

technical field

The invention relates to the technical field of cloud computing and data centers, in particular to a design method of a power consumption monitoring device for a server system hard disk with strong practicability.

Background technique

With the rise of emerging industries such as cloud computing and big data, Internet companies and cloud computing service providers are building more and more data centers, each of which has deployed or is about to deploy thousands of server systems . Energy consumption and heat dissipation costs of data centers have gradually become one of the main costs of the above-mentioned enterprises. It is very necessary and meaningful to balance the relationship between energy consumption and heat dissipation of server systems.

In order to better optimize the power consumption of the whole machine of the server system, the system needs to monitor and manage the power consumption of the main power components of the whole machine. Among them, including CPU, memory, fan, hard disk and other main components. The realization of real-time monitoring of the power consumption of server components will help the operation and maintenance personnel to more effectively and accurately grasp the cluster energy consumption status of the data center. At the same time, it provides a basis for formulating or adjusting energy management strategies, and then realizes energy saving of the server system.

At present, in the server system, the CPU and memory power consumption monitoring technology is relatively mature, and it is enough to directly read the power value fed back by the PCU through the ME. However, the system fan power consumption and hard disk power consumption monitoring technology is relatively blank in the industry. Therefore, there is an urgent need for a solution to measure the power consumption of the hard disk of the server in real time. Based on this, the present invention provides a method for designing a power consumption monitoring device for a server system hard disk.

Contents of the invention

The technical task of the present invention is to provide a method for designing a power consumption monitoring device for a server system hard disk with strong practicability in view of the above deficiencies.

A method for designing a power consumption monitoring device of a server system hard disk, its specific structure includes a hard disk, a BMC monitoring chip, a power consumption monitoring device Power Monitor, and a precision sensing resistor, wherein: the power consumption monitoring device Power Monitor is connected to the above-mentioned precision sensing resistor, and the The sampled current and voltage are converted into power consumption values, and then the power consumption data is output to the BMC of the system through the I2C interface; the BMC displays the total power consumption of the hard disk on the web management system interface.

The power supply voltage of the hard disk is divided into two groups, one group is 12V power supply voltage, and the other group is 5V power supply voltage. The above-mentioned precision sensing resistor detects the 12V and 5V power supply currents flowing through all hard disks in the system; the web management system interface displays The total power consumption of the hard disk is obtained by adding the power consumption data of two groups of different voltages.

9 I2C interfaces are set on the BMC, and one of them is arbitrarily selected to be connected to the Power Monitor device according to the needs during use. The Power Monitor device supports standard PMbus commands, and the upper computer BMC directly reads the power consumption value from the Power Monitor through the standard PMbus commands.

A method for designing a power consumption monitoring device for a server system hard disk of the present invention has the following advantages:

The design method of a power consumption monitoring device for a server system hard disk in this invention can facilitate users to more accurately view the real-time power consumption of the system hard disk under different pressures, and provide accurate reference data for server operation and maintenance personnel to manually adjust the fan speed. Conducive to hard disk heat dissipation and system power consumption optimization, the server system can monitor the power consumption of all hard disks mounted on it in real time and accurately; the hard disk model on the server system is not limited to a single or multiple specific models, but can be It can be replaced flexibly according to the needs of users, and the accuracy of power consumption monitoring will not be affected after the replacement; it has strong practicability and is easy to promote.

Description of drawings

Accompanying drawing 1 is the hardware topological diagram of the present invention.

Accompanying drawing 2 is a system BMC remote login interface diagram of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

The present invention proposes a design method of a power consumption monitoring device for a server system hard disk, as shown in Figure 1 and Figure 2, its specific structure includes a hard disk, a BMC monitoring chip, a power consumption monitoring device Power Monitor, and a precision sensing resistor, wherein: The power consumption monitoring device Power Monitor is connected to the above precision sensing resistor, and converts the sampled current and voltage into power consumption values, and then outputs the power consumption data to the BMC of the system through the I2C interface; the BMC displays the total power consumption of the hard disk on the web management system interface.

The power supply voltage of the hard disk is divided into two groups, one group is 12V power supply voltage, and the other group is 5V power supply voltage. The above-mentioned precision sensing resistor detects the 12V and 5V power supply currents flowing through all hard disks in the system; the web management system interface displays The total power consumption of the hard disk is obtained by adding the power consumption data of two groups of different voltages.

9 I2C interfaces are set on the BMC, and one of them is arbitrarily selected to be connected to the Power Monitor device according to the needs during use. The Power Monitor device supports standard PMbus commands, and the upper computer BMC directly reads the power consumption value from the Power Monitor through the standard PMbus commands.

Through the above-mentioned device, no matter what model, specification and number of hard disks the system is equipped with, the system can accurately read the total power consumption of the hard disk under the current pressure in real time, and display it on the system web interface for users to view.

In the design process of the above-mentioned device, the realization of the hard disk power consumption monitoring function depends on the I2C controller of the BMC chip on the motherboard; the hard disk power consumption monitoring is to detect the 12V current and 5V current passing through all the The total power of the hard disk is obtained through calculation and processing by the power consumption monitoring chip, and the power data is transmitted to the BMC system of the main board through I2C.

It should be noted that the two Power Monitors for 12V and 5V need to distinguish their I2C addresses. Moreover, in order to improve the accuracy of power consumption monitoring, it is necessary to set the single sampling rate of calculating the average power consumption to the maximum inside the chip. Through actual measurement and calibration, the accuracy of hard disk power consumption read by BMC can be controlled within ±1%.

Secondly, in terms of system software, the human-computer interaction interface shown in Figure 2 is designed on the remote management interface of the BMC. Click on the power menu bar to see the fan power consumption under the current system operation.

Further, the specific design and implementation steps of the device are as follows:

1. Select a suitable Power Monitor. The Power Monitor chip model selected in this embodiment is ADM1293, which is used as slaver in the I2C topology.

2. When designing the motherboard hardware, first refer to the I2C topology in Figure 1 to design the circuit, and define the appropriate I2C address of the Power Monitor. In this example, the Power Monitor I2C address for detecting 12V current is defined as 0x34, and the Power Monitor for detecting 5V current is defined as 0x34. Monitor I2C address is 0x30.

3. When designing the hard disk backplane power supply, as shown in Figure 1, use P12V_HDD through the Sense resistor for the 12V power supply of the hard disk, and P5V_HDD through the Sense resistor for the 5V power supply of the hard disk.

4. BMC designs the management interface shown in Figure 2 through software programming.

After the system hardware system is built, start it up. The BMC reads the power consumption register of the ADM1293 through the standard PMbus command, and displays the power consumption value on the Web interface shown in Figure 2. Users can remotely log in to the Web interface to view the total power consumption of the hard disk under the current system pressure.

The above-mentioned specific embodiments are only specific cases of the present invention, and the scope of patent protection of the present invention includes but is not limited to the above-mentioned specific embodiments, any claims in accordance with the claims of the present invention for a method of designing a power consumption monitoring device for a server system hard disk Appropriate changes or substitutions made by any person of ordinary skill in the technical field shall fall within the patent protection scope of the present invention.

Claims (3)

1. A method for designing a power consumption monitoring device of a server system hard disk, characterized in that its specific structure includes a hard disk, a BMC monitoring chip, a power consumption monitoring device Power Monitor, and a precision sensing resistor, wherein: the power consumption monitoring device Power Monitor is connected to the above-mentioned Precise sensing resistors, and convert the sampled current and voltage into power consumption values, and then output the power consumption data to the BMC of the system through the I2C interface; the BMC displays the total power consumption of the hard disk on the web management system interface. 2. The method for designing a power consumption monitoring device for a server system hard disk according to claim 1, wherein the power supply voltage of the hard disk is divided into two groups, one group is a 12V power supply voltage, and one group is a 5V power supply voltage , the above-mentioned precision sensing resistor detects the 12V and 5V power supply currents flowing through all hard disks in the system; the web management system interface displays the total power consumption of the hard disk obtained by adding the power consumption data of two sets of different voltages. 3. the power consumption monitoring device design method of a kind of server system hard disk according to claim 2, it is characterized in that, 9 I2C interfaces are set on the described BMC, when using, select one of them to be connected to the Power Monitor device arbitrarily as required, The Power Monitor device supports standard PMbus commands, and the host computer BMC directly reads the power consumption value from the Power Monitor through standard PMbus commands.