CN103268147A - Hard disk power consumption management method and device - Google Patents

Abstract

The invention provides a method for hard disk power consumption management. The method for the hard disk power consumption management comprises the following steps that overtime limiting time of a hard disk controller of a hard disk is obtained, and a maximum power consumption mode of the hard disk is set according to the overtime limiting time; a plurality of parameter values of the hard disk are detected, each parameter value is compared with a corresponding preset safety value, and the healthy degree of the hard disk is generated according to comparison results; the healthy degree of the hard disk is mapped with a plurality of preset healthy sections, a power consumption mode of the hard disk is set according to the healthy degree of the hard disk mapped with the preset healthy sections, and the hard disk is controlled to run in different power-consumption modes. The method and device for the hard disk power consumption management prevents performance degradation or the occurrence of a potential fault, wherein the performance degradation or the occurrence of the potential fault is caused by energy-saving mode switching, the power consumption of the hard disk is enabled to be reduced, and the overall performance, and data integrity and reliability are ensured at the same time. The invention further discloses a device for hard disk power consumption management.

Description

Hard disk power consumption management method and device

technical field

The invention relates to the technical field of computers, in particular to a method and device for managing power consumption of a hard disk.

Background technique

Hard disk is one of the main storage media of computer. Most of today's hard disks have power management technology. For example, the approved patents of T10 standard #T10/09-054 and T13 standard #T13/452-2008 both propose solutions for hard disk power consumption management. For example, Seagate PowerChoice technology can enable the host to customize the energy-saving settings of the hard disk through the mode page (SAS/FC) or setting function commands (SATA), so as to reduce the power consumption of the hard disk while obtaining better performance. This configuration flexibility enables users to specify optimal idle time thresholds for specific storage applications.

However, in the prior art, the switching of the energy-saving state of the hard disk requires time and overhead, and the prior art does not set the power consumption according to the specific conditions of different hard disks. If the energy-saving function is enabled for hard disks that are obviously aging or have potential failures, it is easy to cause IO request command execution to timeout (timeout), be terminated (abort), and other situations.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. For this reason, an object of the present invention is to propose a hard disk power consumption management method, which prevents system performance degradation or failures caused by energy-saving mode switching, and ensures overall performance, data Integrity and reliability.

The second object of the present invention is to provide a device for managing power consumption of a hard disk.

In order to achieve the above object, the embodiment of the first aspect of the present invention proposes a hard disk power consumption management method, including the following steps: obtaining the timeout limit time of the hard disk controller of the hard disk, and setting the maximum time limit of the hard disk according to the timeout limit time. Power saving mode; detecting multiple parameter values of the hard disk, and comparing each parameter value with a corresponding preset security value, generating the health degree of the hard disk according to the comparison result; comparing the health of the hard disk The degree is mapped with a plurality of preset health intervals, and the power consumption mode of the hard disk is set according to the health degree of the hard disk mapped with the plurality of preset health intervals, and the hard disk is controlled to run in different power consumption modes .

According to the hard disk power consumption management method of the embodiment of the present invention, the health degree of the hard disk is generated by detecting the timeout limit time and parameter values of the hard disk controller of the hard disk, and a plurality of health intervals are preset for the health degree. The health level of different hard disks can be obtained in different intervals, which is targeted and can save energy in the case of fast response to IO request commands, effectively avoiding the problems of working state saving, switching and Timer setting failures caused by hard disk aging or potential failures, as well as IO requests When the command execution times out or is terminated, it prevents the performance degradation or potential failure caused by the energy-saving mode switching, so that the hard disk can reduce the ultra-low power consumption while ensuring the overall performance, data integrity and reliability.

In an embodiment of the present invention, the setting the maximum power saving mode of the hard disk according to the timeout limit time includes the following steps: determining the maximum power consumption saving mode according to the timeout limit time of the hard disk controller ; Setting the corresponding power consumption mode according to the health level of the hard disk mapped to the multiple preset health intervals.

In one embodiment of the present invention, the power consumption mode includes: first state: default idle state; second state: disable multiple servo systems, reduce processor and channel power consumption, and rotate hard disk at full speed; third state: Disable multiple servos, reduce processor and channel power consumption, head offload to hard disk ramp, hard disk spins at full speed; 4th state: disable multiple servos, reduce processor and channel power consumption, head offload to hard disk ramp, lower hard disk Rotation speed; the fifth state: the magnetic head is unloaded to the hard disk ramp, the hard disk motor stops, and the hard disk responds to the non-disk access host command; wherein, the recovery time of the first to fifth states increases sequentially.

In an embodiment of the present invention, the detecting multiple parameter values of the hard disk includes detecting the operation status of the magnetic head, disk, motor and circuit of the hard disk to obtain corresponding parameter values. .

In an embodiment of the present invention, each of the preset health intervals is used to represent the health of the hard disk, and the health degrees indicated by the plurality of preset health intervals increase sequentially.

The embodiment of the second aspect of the present invention provides a device for managing power consumption of a hard disk, including a detection module, a mode setting module and a control module. Wherein, the detection module is used to detect the overtime limit time of the hard disk controller of the hard disk and a plurality of parameter values of the hard disk; the mode setting module is used to set the maximum power saving mode of the hard disk according to the timeout limit time, and set each The parameter value is compared with the corresponding preset security value, and the health degree of the hard disk is generated according to the comparison result, and the health degree of the hard disk is mapped to a plurality of preset health intervals, and according to the multiple preset Set the health level of the hard disk mapped in the healthy interval to set the power consumption mode of the hard disk; the control module is used to control the hard disk to run in different power consumption modes.

According to the hard disk power consumption management device of the embodiment of the present invention, the health degree of the hard disk is generated by detecting the timeout limit time and parameter values of the hard disk controller of the hard disk, and a plurality of health intervals are preset for the health degree. Obtaining the health of different hard disks is targeted, and can save energy in the case of fast response to IO request commands, effectively avoiding the problems of working state saving, switching and Timer setting failures caused by hard disk aging or potential failures, as well as IO request commands Execute overtime or be terminated, prevent performance degradation or potential failures caused by energy-saving mode switching, reduce ultra-low power consumption of hard disks, and ensure overall performance, data integrity, and reliability.

In an embodiment of the present invention, the mode setting module determines the maximum power saving mode according to the timeout limit time of the hard disk controller, and then according to the The power consumption mode corresponding to the health level setting.

In one embodiment of the present invention, the power consumption mode includes: first state: default idle state; second state: disable multiple servo systems, reduce processor and channel power consumption, and rotate hard disk at full speed; third state: Disable multiple servos, reduce processor and channel power consumption, head offload to hard disk ramp, hard disk spins at full speed; 4th state: disable multiple servos, reduce processor and channel power consumption, head offload to hard disk ramp, lower hard disk Rotation speed; the fifth state: the magnetic head is unloaded to the hard disk ramp, the hard disk motor stops, and the hard disk responds to the non-disk access host command; wherein, the recovery time of the first to fifth states increases sequentially.

In an embodiment of the present invention, the detection module detects multiple parameter values of the hard disk, including detecting the operation status of the magnetic head, disk, motor and circuit of the hard disk to obtain corresponding parameter values.

In an embodiment of the present invention, each of the preset health intervals is used to represent the health of the hard disk, and the health degrees indicated by the plurality of preset health intervals increase sequentially.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is the flowchart of the hard disk power consumption management method according to the embodiment of the present invention; With

FIG. 2 is a schematic structural diagram of a device for managing power consumption of a hard disk according to an embodiment of the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

The following describes the hard disk power consumption management method according to an embodiment of the present invention with reference to FIG. 1, including the following steps:

Step S110: Obtain the timeout limit time of the hard disk controller of the hard disk, and set the maximum power saving mode of the hard disk according to the timeout limit time.

Further, setting the maximum power saving mode of the hard disk according to the timeout limit time includes the following steps: firstly, determining the maximum power consumption saving mode according to the timeout limit time of the hard disk controller, and then according to the hard disks mapped with multiple preset health intervals The power consumption mode corresponding to the health level setting.

Step S120: Detect multiple parameter values of the hard disk, compare each parameter value with a corresponding preset safe value, and generate a health degree of the hard disk according to the comparison result.

Among them, multiple parameter values of the hard disk are detected, among which the multiple parameter values are 14 SMART attribute indicators, including detecting the operating status of the magnetic head, platter, motor and circuit of the hard disk to obtain corresponding parameter values.

Step S130: Map the health level of the hard disk with a plurality of preset health intervals, set the power consumption mode of the hard disk according to the health degree of the hard disk mapped with the plurality of preset health intervals, and control the hard disk to run in different power consumption modes .

Wherein, each preset health interval is used to represent a corresponding health degree of the hard disk, and the health degrees represented by multiple preset health intervals increase sequentially. In other words, the health degree of each preset health interval is different, and if the health degrees represented by multiple preset health intervals are sorted, the health degree becomes better and better.

Among them, the power mode includes:

The first state: default idle state; the second state: disable multiple servo systems, reduce processor and channel power consumption, and drive at full speed; third state: disable multiple servo systems, reduce processor and channel power consumption, head unloading to the hard disk ramp, and the hard disk rotates at full speed; the fourth state: disable multiple servo systems, reduce processor and channel power consumption, unload the head to the hard disk ramp, and reduce the rotation speed of the hard disk; fifth state: unload the head to the hard disk ramp, and stop the hard disk motor The hard disk and the hard disk respond to non-disk access host commands; wherein, the recovery time of the first to fifth states increases sequentially.

The following uses a 7200 rpm 3TB SATA hard disk as an example to illustrate the hard disk power consumption management method according to the embodiment of the present invention. It can be understood that the following description is for example purposes only, and the embodiment of the present invention is not limited thereto.

Table 1 is the maximum power saving mode-recovery time correspondence table for a 7200rpm 3TB SATA hard disk, indicating the correspondence between each state of the maximum power saving mode and the recovery time. The name in the second column is the specific name of the state in the 7200 rpm 3TB SATA hard disk, and the meaning is explained by the third column.

Table 1

Obtain the timeout limit time of the hard disk controller of the hard disk, and set the maximum power saving mode of the hard disk according to the timeout limit time. For example, query the preset maximum power saving mode-recovery time correspondence table Table 1.

The maximum power saving mode is determined according to the timeout limit time of the hard disk controller, and then the corresponding power consumption mode is set according to the health degree of the hard disk mapped to multiple preset health intervals.

For example, in JBOD (Just a Bunch Of Disks, disk cluster) hard disk, the timeout limit of the hard disk controller is 30s, then according to Table 1, the hard disk can turn on the fifth state mode at most. For hard disks under RAID (Redundant Arrays of Inexpensive Disks, disk array), the timeout limit of the RAID controller is 7s, so it can be turned on to the fourth state at most. Since 8707ms>7s, the fifth state cannot be used, otherwise it will exceed 7s After that, the hard disk will be treated as a failure.

The detection of multiple parameter values of the hard disk can be realized through hard disk S.M.A.R.T. technology. S.M.A.R.T. technology is an automatic hard disk status detection and early warning system and specification. Record monitoring parameter values. It should be understood that the S.M.A.R.T. technique is for example purposes only, and embodiments of the present invention are not limited thereto. Among them, the hardware of the hard disk includes, for example, a magnetic head, a disk, a motor, and a circuit. After detecting multiple parameter values of the hard disk, compare them with the preset safety values preset by the manufacturer, and generate the health degree of the hard disk according to the comparison results. If the monitoring situation is about to or has exceeded the safety range of the preset safety value, the monitoring hardware or software of the host can automatically warn the user and perform a slight automatic repair, so as to ensure the safety of hard disk data. Taking Seagate 7200 RPM 3TB SATA hard disk as an example, there are 21 S.M.A.R.T. attribute indicators, and the interval of each attribute value is [1,100]. Among them, the 14 items in Table 2 have an important impact on the switching efficiency and success of hard disk power consumption:

Table 2

This method selects the best power consumption mode by dividing grade intervals according to the health degree of the hard disk. According to the threshold value of each attribute, the 14 attribute values in Table 2 are divided into 5 intervals, and combined to generate a unified five-level interval. As shown in Table 3, the hard disk health level is marked in the form of intervals. A health interval of 1 means that the hard disk is in poor health, and an interval of 5 is vice versa.

healthy zone power state 1 first state 2 second state 3 third state 4 fourth state 5 fifth state

table 3

Map the health degree of the hard disk with multiple preset health intervals, set the power consumption mode of the hard disk according to the health degree of the hard disk mapped with the multiple preset health intervals, and control the hard disk to run in different power consumption modes. If the fifth state cannot be used due to the time limit of the timeout of the RAID card, the hard disks in the health range 4 and 5 are set to the fourth state, and the hard disks are controlled to run in the power consumption mode.

According to the hard disk power consumption management method of the embodiment of the present invention, different levels of power consumption modes are set for different hard disk health levels, which can save energy in the case of fast response to IO request commands, and effectively avoid the preservation of working status caused by hard disk aging or potential failure. , Switching and Timer setting failures, as well as IO request command execution timeout or being terminated, to prevent performance degradation or potential failures caused by energy-saving mode switching, so as to truly reduce power consumption of the hard disk without affecting performance. Data integrity and reliability.

The following describes a hard disk power management device 100 according to an embodiment of the present invention with reference to FIG. 2 , including a detection module 110 , a mode setting module 120 and a control module 130 .

Wherein, the detection module 110 is used to detect the overtime limit time of the hard disk controller of the hard disk and a plurality of parameter values of the hard disk; the mode setting module 120 is used to set the maximum power saving mode of the hard disk according to the overtime limit time, and set each parameter value Compare with the corresponding preset security value, generate the health level of the hard disk according to the comparison result, map the health level of the hard disk with multiple preset health intervals, and set the The power consumption mode of the hard disk; the control module is used to control the operation of the hard disk in different power consumption modes.

The mode setting module 120 determines the maximum power saving mode according to the timeout limit time of the hard disk controller, and then sets the corresponding power consumption mode according to the health level of the hard disk mapped to a plurality of preset health intervals.

In one embodiment of the present invention, the power consumption mode includes: first state: default idle state; second state: disable multiple servo systems, reduce processor and channel power consumption, and rotate hard disk at full speed; third state: disable multiple 1 servo system, reduced processor and channel power consumption, heads offloaded to hard drive ramps, hard drive spins at full speed; fourth state: multiple servos disabled, reduced processor and channel power consumption, heads offloaded to hard drive ramps, hard drives spin down ; The fifth state: the magnetic head is unloaded to the hard disk ramp, the hard disk motor stops, and the hard disk responds to the non-disk access host command; wherein, the recovery time of the first to fifth states increases sequentially.

The detection module 110 detects multiple parameter values of the hard disk, wherein the multiple parameter values are 14 SMART attribute indicators, including detecting the operating status of the hard disk head, platter, motor and circuit to obtain corresponding parameter values.

Each preset health interval is used to represent a corresponding health degree of the hard disk, and the health degrees represented by multiple preset health intervals increase sequentially. In other words, the health degree of each preset health interval is different, and if the health degrees represented by multiple preset health intervals are sorted, the health degree becomes better and better.

The following uses a 7200-rpm 3TB SATA hard disk as an example to illustrate the hard disk power consumption management device according to the embodiment of the present invention. It can be understood that the following description is for illustrative purposes only, and the embodiment of the present invention is not limited thereto.

Table 1 is the maximum power saving mode-recovery time correspondence table for a 7200rpm 3TB SATA hard disk, indicating the correspondence between each state of the maximum power saving mode and the recovery time. The name in the second column is the specific name of the state in the 7200 rpm 3TB SATA hard disk, and the meaning is explained by the third column.

The detection module 110 acquires the timeout limit time of the hard disk controller of the hard disk, and the mode setting module 120 sets the maximum power saving mode of the hard disk according to the timeout limit time. For example, the mode setting module 120 queries the preset maximum power saving mode-recovery time correspondence table, namely Table 1 .

Determine the maximum power saving mode according to the timeout limit time of the hard disk controller, and then set the corresponding power consumption mode according to the health degree of the hard disk mapped to the multiple preset health intervals.

For example, in the hard disk of JBOD (Just a Bunch Of Disks, disk cluster), the detection module 110 detects that the timeout limit time of the hard disk controller is 30s, so according to Table 1, the mode setting module 120 sets the hard disk to open the fifth state mode at most. For hard disks under RAID (Redundant Arrays of Inexpensive Disks, disk array), the detection module 110 detects that the timeout limit time of the RAID controller is 7s, then the mode setting module 120 can be turned on to the fourth state at most, because 8707ms>7s, so The mode setting module 120 cannot use the fifth state, otherwise the hard disk will be treated as a failure after more than 7s.

The detection module 110 can detect multiple parameter values of the hard disk through hard disk S.M.A.R.T. technology. S.M.A.R.T. technology is an automatic hard disk status detection and early warning system and specification. Monitor and record values of monitored parameters. It should be understood that the S.M.A.R.T. technique is for example purposes only, and embodiments of the present invention are not limited thereto.

Among them, the hardware of the hard disk includes, for example, a magnetic head, a disk, a motor, and a circuit. After the detection module 110 detects multiple parameter values of the hard disk, the mode setting module 120 compares them with the preset security values preset by the manufacturer, and generates the health level of the hard disk according to the comparison result. If the monitoring situation is about to or has exceeded the safety range of the preset safety value, the monitoring hardware or software of the host can automatically warn the user and perform a slight automatic repair, so as to ensure the safety of hard disk data. Taking Seagate 7200 RPM 3TB SATA hard disk as an example, there are 21 S.M.A.R.T. attribute indicators, and the interval of each attribute value is [1,100]. Among them, the 14 items in Table 2 have an important impact on the switching efficiency and success of hard disk power consumption.

The mode setting module 120 selects the best energy-saving mode according to the health degree of the hard disk by classifying intervals. According to the threshold value of each attribute, the 14 attribute values in Table 2 are divided into 5 intervals, and combined to generate a unified five-level interval. As shown in Table 3, the hard disk health level is marked in the form of intervals. A health interval of 1 means that the hard disk is in poor health, and an interval of 5 is vice versa.

The mode setting module 120 maps the health degree of the hard disk with a plurality of preset health intervals, and sets the power consumption mode of the hard disk according to the health degree of the hard disk mapped with the plurality of preset health intervals, and the control module 130 controls the hard disk to operate in different functions. run in consumption mode. If the fifth state cannot be used due to the time limit of the RAID card overtime, the mode setting module 120 sets the hard disks in the healthy intervals 4 and 5 to the fourth state, and the control module 130 controls the hard disks to run in a power consumption mode.

According to the hard disk power consumption management device of the embodiment of the present invention, different levels of power consumption modes are set for different hard disk conditions, and energy can be saved in the case of fast response to IO request commands, effectively avoiding the preservation of working status due to aging or potential failure of the hard disk. Switching and Timer setting failures, as well as IO request command execution timeout or being terminated, prevent performance degradation or potential failures caused by energy-saving mode switching, so that the hard disk can truly reduce power consumption without affecting performance and data. Integrity and reliability.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (10)

1. a hard disk power consumption management method is characterized in that, comprises the steps:

Obtain the overtime binding hours of the hard disk controller of hard disk, the maximum power dissipation save mode of described hard disk is set according to described overtime binding hours;

Detect the multiple parameter values of described hard disk, and each described parameter value and corresponding preset safety value are compared, generate the health degree of described hard disk according to comparative result; And

Health degree and a plurality of default healthy interval of described hard disk are shone upon, according to the health degree with a plurality of described default healthy interval described hard disks that shine upon the power consumption mode of described hard disk is set, and control described hard disk in different power consumption mode operations.

2. method according to claim 1 is characterized in that, describedly according to described overtime binding hours the maximum power dissipation save mode of described hard disk is set, and comprises the steps:

Described overtime binding hours according to described hard disk controller is determined the maximum power dissipation save mode;

According to the health degree with a plurality of described default healthy interval described hard disks that shine upon corresponding power consumption mode is set.

3. method as claimed in claim 1 or 2 is characterized in that described power consumption mode comprises:

First state: default idle state;

Second state: forbid a plurality of servo-drive systems, minimizing processor and passage power consumption, hard disk and rotate at full speed;

The third state: forbid a plurality of servo-drive systems, minimizing processor and passage power consumption, head unloading and rotate at full speed to hard disk slope, hard disk;

The 4th state: forbid a plurality of servo-drive systems, reduce processor and passage power consumption, head unloading to the hard disk slope, reduction hard disk velocity of rotation;

The 5th state: head unloading to the hard disk slope, the stall of hard disk motor, hard disk respond to non-magnetic disc visit Host Command;

Wherein, increase successively the release time of described first to the 5th state.

4. method according to claim 1 is characterized in that the multiple parameter values of described detection hard disk comprise that the running status of the magnetic head, disc, motor and the circuit that detect described hard disk is to obtain corresponding parameter value.

5. method according to claim 1 is characterized in that, each described default healthy interval health degree that is used for the described hard disk of expression, and the health degree of a plurality of described default healthy interval expressions raises successively.

6. a hard disk power consumption management devices is characterized in that, comprising:

Detection module is for detection of the overtime binding hours of the hard disk controller of hard disk and the multiple parameter values of hard disk;

Pattern arranges module, be used for arranging according to described overtime binding hours the maximum power dissipation save mode of described hard disk, and each described parameter value and corresponding preset safety value compared, generate the health degree of described hard disk according to comparative result, and health degree and a plurality of default healthy interval of described hard disk shone upon, the power consumption mode of described hard disk is set according to the health degree with the described hard disks of a plurality of described default healthy interval mappings; And

Control module is used for the described hard disk of control in different power consumption mode operations.

7. as device as described in the claim 6, it is characterized in that, described pattern arranges module and determines the maximum power dissipation save mode according to the described overtime binding hours of described hard disk controller, according to the health degree with a plurality of described default healthy interval described hard disks that shine upon corresponding power consumption mode is set then.

8. as device as described in claim 6 or 7, it is characterized in that described power consumption mode comprises:

First state: default idle state;

Second state: forbid a plurality of servo-drive systems, minimizing processor and passage power consumption, hard disk and rotate at full speed;

The third state: forbid a plurality of servo-drive systems, minimizing processor and passage power consumption, head unloading and rotate at full speed to hard disk slope, hard disk;

The 4th state: forbid a plurality of servo-drive systems, reduce processor and passage power consumption, head unloading to the hard disk slope, reduction hard disk velocity of rotation;

The 5th state: head unloading to the hard disk slope, the stall of hard disk motor, hard disk respond to non-magnetic disc visit Host Command;

Wherein, increase successively the release time of described first to the 5th state.

9. as device as described in the claim 6, it is characterized in that the multiple parameter values of the described detection hard disk of described detection module comprise that the running status of the magnetic head, disc, motor and the circuit that detect described hard disk is to obtain corresponding parameter value.

10. as device as described in the claim 6, it is characterized in that, each described default healthy interval health degree that is used for the described hard disk of expression, and the health degree of a plurality of described default healthy interval expressions raises successively.

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