CN107704213B - Automatic service quality management method and device for storage array - Google Patents
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- 238000003491 array Methods 0.000 claims description 6
- 238000004590 computer program Methods 0.000 claims description 4
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0604—Improving or facilitating administration, e.g. storage management
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/061—Improving I/O performance
- G06F3/0611—Improving I/O performance in relation to response time
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0638—Organizing or formatting or addressing of data
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0683—Plurality of storage devices
- G06F3/0689—Disk arrays, e.g. RAID, JBOD
Abstract
The invention discloses an automatic service quality management method, a device and a computer readable storage medium of a storage array, wherein the method comprises the following steps: acquiring target response time corresponding to each data volume accessed by each server; wherein the data volume belongs to an automatically layered volume of the storage array; performing corresponding bandwidth adjustment by using an automatic quality of service technology according to the current response time and the corresponding target response time of each data volume; the invention improves the service level by dynamically adjusting the I/O bandwidth of the data volume belonging to the automatic hierarchical volume, can enable managers to set priority more easily based on performance requirements, can migrate rarely accessed data from an expensive high-performance disk to a low-price common disk through the automatic hierarchical volume, reduces the capital investment cost, simplifies the management mode of an administrator, and improves the overall performance of the storage system.
Description
Technical Field
The present invention relates to the field of software technologies, and in particular, to a method and an apparatus for automated quality of service management for a storage array, and a computer-readable storage medium.
Background
Quality of Service (QoS) functions may selectively limit server I/O requests to prevent performance impacts on other server workloads. This allows a user to prioritize certain applications over another to access storage resources. The problem with existing storage QoS is that when all servers access storage simultaneously, bottlenecks can occur and affect the overall performance of the storage system.
In the prior art, when QoS is used, the number of IOPS (Input/Output Operations Per Second) that can be used by each server at any time is limited, which ensures stable performance of all servers connected to the storage system. However, the quality of service options of existing storage arrays only statically limit the IOPS of a particular volume and require extensive expertise and continuous tuning to find the best settings, such that management personnel need to invest a lot of management time, perform time-consuming and cumbersome tasks such as data analysis and manual tuning of application priorities, etc., and data that is rarely or no longer accessed occupies expensive high-performance disks, affecting the overall performance of the storage system. Therefore, how to reduce the workload of the administrator and improve the overall performance of the storage system is a problem that needs to be solved urgently nowadays.
Disclosure of Invention
The invention aims to provide an automatic service quality management method and device of a storage array and a computer readable storage medium, so that an automatic QoS technology and an automatic layering technology are combined, the management mode of a manager is simplified, and the service level and the overall performance of a storage system are improved.
In order to solve the above technical problem, the present invention provides an automated qos management method for a storage array, including:
acquiring target response time corresponding to each data volume accessed by each server; wherein the data volume belongs to an automatically layered volume of a storage array;
and performing corresponding bandwidth adjustment by utilizing an automatic quality of service technology according to the current response time and the corresponding target response time of each data volume.
Optionally, the obtaining target response time corresponding to each data volume accessed by each server includes:
and acquiring the target response time corresponding to each data volume according to the preset priority or the preset target response time corresponding to each data volume.
Optionally, before obtaining the target response time corresponding to each data volume accessed by each server, the method further includes:
and setting corresponding preset priority or preset target response time for each data volume in the automatic hierarchical volume.
Optionally, before obtaining the target response time corresponding to each data volume accessed by each server, the method further includes:
creating the automatically layered volume in the storage array.
Optionally, the performing, by using an automatic quality of service technique, corresponding bandwidth adjustment according to the current response time and the corresponding target response time of each data volume includes:
and if the current response time of the data volume does not match the corresponding target response time, performing bandwidth adjustment.
The invention also provides an automatic service quality management device of the storage array, which comprises the following components:
the acquisition module is used for acquiring target response time corresponding to the data volume accessed by each server; wherein the data volume belongs to an automatically layered volume of a storage array;
and the adjusting module is used for performing corresponding bandwidth adjustment by utilizing an automatic quality of service technology according to the current response time and the corresponding target response time of each data volume.
Optionally, the obtaining module includes:
and the obtaining submodule is used for obtaining the target response time corresponding to each data volume according to the preset priority or the preset target response time corresponding to each data volume.
Optionally, the apparatus further comprises:
and the setting module is used for setting the corresponding preset priority or preset target response time for each data volume in the automatic hierarchical volume.
Optionally, the apparatus further comprises:
a creation module to create the automatically layered volume in the storage array.
Furthermore, the present invention also provides a computer readable storage medium having stored thereon a computer program which, when being executed by a processor, carries out the steps of the method for automated quality of service management of a storage array as set forth in any one of the preceding claims.
The invention provides an automatic service quality management method of a storage array, which comprises the following steps: acquiring target response time corresponding to each data volume accessed by each server; wherein the data volume belongs to an automatically layered volume of the storage array; performing corresponding bandwidth adjustment by using an automatic quality of service technology according to the current response time and the corresponding target response time of each data volume;
therefore, according to the present response time of each data volume and the corresponding target response time, the invention utilizes the automatic service quality technology to carry out the corresponding bandwidth adjustment, dynamically adjusts the I/O bandwidth of the data volume belonging to the automatic layered volume, improves the service level, can enable the manager to more easily set the priority based on the performance requirement, and can migrate the data with less access from the expensive high-performance disk to the low-cost common disk through the automatic layered volume, thereby reducing the capital investment cost, simplifying the management mode of the manager, and improving the overall performance of the storage system. In addition, the invention also provides an automatic service quality management device of the storage array and a computer readable storage medium, and the device and the medium also have the beneficial effects.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a flow chart of a method for automated quality of service management of a storage array according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating bandwidth adjustment for pre-set priorities in an automated QoS management method for storage arrays according to an embodiment of the present invention;
FIG. 3 is a diagram illustrating bandwidth adjustment for a predetermined target response time in an automated QoS management method for storage arrays according to an embodiment of the present invention;
fig. 4 is a structural diagram of an automated qos management apparatus for a storage array according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a flowchart illustrating an automated qos management method for a storage array according to an embodiment of the present invention. The method can comprise the following steps:
step 101: acquiring target response time corresponding to each data volume accessed by each server; wherein the data volume belongs to an automatically layered volume of the storage array.
It will be appreciated that the target response time may be an average of the data volume read + write response times. In this step, the target response time corresponding to each data volume accessed by the server may be obtained correspondingly according to a setting mode of the target response time of each data volume of the automatic hierarchical volume belonging to the storage array, and if the setting mode of the target response time may be a preset priority level or a preset target response time, this step may obtain the corresponding target response time according to the preset priority level or the preset target response time of each data volume accessed by the server. As long as the target response time corresponding to each data volume accessed by the server can be obtained, the specific obtaining manner and the setting manner of the corresponding target response time may be set by the designer, which is not limited in this embodiment.
Specifically, when the target response time is set in a preset priority, the priority of one data volume relative to other data volumes may be adjusted, and any one of the following values may be set:
without limitation: allowing data volumes to use the available bandwidth ad libitum without restriction
High: data volumes require the highest performance.
The method comprises the following steps: high performance is required, but bandwidth limitations may be accepted if resources must be shared with another data volume of "high" priority.
Low: high performance is not required. Data volumes allow bandwidth limitations on other volumes. If "low" is selected, the automatic quality of service technique will adjust other "high" priority volumes while taking into account the performance of the data volumes using the "low" selection.
When the target response time is set in the preset target response time, greater flexibility can be achieved because the preset target response time can be set within the following range according to the business requirements;
0 (millisecond): the configuration does not limit the bandwidth and uses it at will.
1-10000 (milliseconds): and setting a preset target response time.
It should be noted that, after setting the preset priority and the preset target response time, the automatic qos technique may allow the higher priority data volume to use a larger bandwidth, and make the current response time of the data volume closer to the target response time.
Correspondingly, this step in this embodiment may further include: setting a corresponding preset priority or preset target response time for each data volume belonging to the automatic hierarchical volume, wherein for a specific setting process, the preset priority or the preset target response time can be set for the corresponding data volume belonging to the automatic hierarchical volume according to setting parameters input by a manager or a user, and if the manager can set the corresponding preset priority according to the target performance of the data volume; or automatically setting corresponding preset priority or preset target response time for each data volume according to the performance state of each data volume belonging to the automatic hierarchical volume; the two manners may be combined or other setting manners may be used, as long as a preset priority or a preset target response time corresponding to each data volume belonging to the automatic hierarchical volume and accessed by the server is set, which is not limited in this embodiment.
It can be appreciated that the use of the automatically layered volumes of the storage array can migrate rarely accessed data from expensive high performance disks to low cost normal disks, reducing capital investment costs and improving the overall performance of the storage system. Correspondingly, this step may be preceded by the step of creating an automatic hierarchical volume in the storage array.
Step 102: and performing corresponding bandwidth adjustment by utilizing an automatic quality of service technology according to the current response time and the corresponding target response time of each data volume.
Wherein the current response time of each data volume may be the current response time of each data volume acquired by the detection. The target response time corresponding to each data volume may be a target response time obtained according to a preset priority or a preset target response time corresponding to each data volume. The present embodiment does not set any limit to this.
It will be appreciated that the purpose of this step may be to make a corresponding bandwidth adjustment for each data volume, i.e., to dynamically adjust the I/O bandwidth of the data volume accessed by the server, using automatic quality of service techniques. The tuning process for specific bandwidth adjustment can be set by the designer according to practical scenarios and user requirements, and can include: if the current response time of a data volume does not match the corresponding target response time, then bandwidth throttling is performed, such as limiting the bandwidth defined as a low priority data volume, so that a high priority data volume will obtain a larger bandwidth and achieve a shorter current response time approaching the target response time. The present embodiment does not set any limit to this.
Specifically, in this step, the adjustment result of the tuning process for adjusting the bandwidth corresponding to the data volume is performed by using the automatic quality of service technique, and may be affected by parameters of the priority, the current I/O system energy, and the disk performance. After adjusting the current response time of the data volume to match the corresponding target response time, the current response time of the data volume may also continue to be detected and adjusted if necessary.
It should be noted that the method provided in this embodiment cannot always ensure that the current response time of the data volume matches the corresponding target response time, for example, when multiple data volumes with high priorities share the same resource. If the current response time of the data volume cannot be continuously matched with the corresponding target response time, the following measures can be adopted: checking all settings to ensure that the steps in this embodiment are ready to be performed correctly; reducing the priority of a data volume sharing the same resource; and auditing the configuration of the data volume and changing the tuning parameters.
Specifically, for bandwidth adjustment of a data volume with a preset priority, as shown in fig. 2, three data volumes (data volume 1-data volume 3) from top to bottom display different preset priority settings: data volume 1 is set to "high priority", data volume 2 is set to "medium priority", and data volume 3 is set to "low priority"; the auto-tuning process begins at 15:00h and calculates the target response times for data volumes 2 and 3 based on the current response time for data volume 1 of high priority. The calculated target response times for data volumes 2 and 3 are then compared to the current response times for data volumes 2 and 3, and if the current response time exceeds the target response time, the bandwidth is reduced by one step. If the current response time is lower than the target response time, increasing the bandwidth by one level; it can be seen that at 15:10h, the three data volumes operate using the adjusted bandwidth, reflecting the importance and performance requirements of the corresponding applications.
For bandwidth adjustment of a data volume with a preset target response time, as shown in fig. 3, three data volumes (data volume 1-data volume 3) from top to bottom require different response times: data volume 1 requires the fastest target response time and data volume 3 requires the slowest response time; when the 15:00h start autotune, the I/O performance of the business application can be checked using the network console performance graphics screen, with the current response time of volume 1 being 50 milliseconds, slower than the set target response time of 30 milliseconds. In this case, it is not necessary to set the target response time of the other data volumes (data volume 2 and data volume 3); to enhance the I/O performance of data volume 1, bandwidth throttling is performed, via step 102. Increasing the bandwidth range of data volume 1 while decreasing the bandwidth of data volumes 2 and 3 to bring the current response time of data volume 1 closer to the target response time; it can be seen that at 15:10h, the target response time for data volume 1 is achieved and the I/O performance of the business applications running on this volume is increased.
In the embodiment of the invention, according to the current response time and the corresponding target response time of each data volume, the corresponding bandwidth adjustment is carried out by utilizing an automatic service quality technology, the I/O bandwidth of the data volume belonging to the automatic layered volume is dynamically adjusted, the service level is improved, the management personnel can more easily set the priority based on the performance requirement, and the data with less access can be transferred from an expensive high-performance disk to a low-cost common disk through the automatic layered volume, so that the capital investment cost is reduced, the management mode of the administrator is simplified, and the overall performance of the storage system is improved.
Referring to fig. 4, fig. 4 is a structural diagram of an automated qos management apparatus for a storage array according to an embodiment of the present invention. The apparatus may include:
an obtaining module 100, configured to obtain target response time corresponding to each data volume accessed by each server; wherein the data volume is in an automatically layered volume of the storage array;
and an adjusting module 200, configured to perform corresponding bandwidth adjustment by using an automatic quality of service technique according to the current response time and the corresponding target response time of each data volume.
Optionally, the obtaining module 100 may include:
and the obtaining submodule is used for obtaining the target response time corresponding to each data volume according to the preset priority or the preset target response time corresponding to each data volume.
Optionally, the apparatus may further include:
and the setting module is used for setting the corresponding preset priority or preset target response time for each data volume in the automatic hierarchical volume.
Optionally, the apparatus may further include:
a creation module to create an automated hierarchical volume in a storage array.
In this embodiment, according to the current response time and the corresponding target response time of each data volume, the adjusting module 200 in the embodiment of the present invention utilizes an automatic quality of service technology to perform corresponding bandwidth adjustment, and dynamically adjusts the I/O bandwidth of the data volumes belonging to the automatic hierarchical volume, thereby improving the service level, enabling the administrator to set the priority more easily based on the performance requirement, and through the automatic hierarchical volume, data with less access can be migrated from an expensive high-performance disk to a low-cost normal disk, thereby reducing the capital investment cost, simplifying the management mode of the administrator, and improving the overall performance of the storage system.
Furthermore, the present invention also provides a computer readable storage medium, on which a computer program is stored, which when executed can implement the steps of the automated quality of service management method for a storage array provided by the above embodiments. The storage medium may include: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device and the computer-readable storage medium disclosed by the embodiments correspond to the method disclosed by the embodiments, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The above description details the method, apparatus and computer readable storage medium for automated quality of service management of storage arrays provided by the present invention. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (8)
1. A method for automated quality of service management of a storage array, comprising:
creating an automatic hierarchical volume in the storage array;
acquiring target response time corresponding to each data volume accessed by each server; wherein the data volume belongs to an automatically layered volume of the storage array;
and performing corresponding bandwidth adjustment by utilizing an automatic quality of service technology according to the current response time and the corresponding target response time of each data volume.
2. The method of claim 1, wherein the obtaining the target response time corresponding to each data volume accessed by each server comprises:
and acquiring the target response time corresponding to each data volume according to the preset priority or the preset target response time corresponding to each data volume.
3. The method of claim 2, wherein before obtaining the target response time corresponding to each data volume accessed by each server, the method further comprises:
and setting corresponding preset priority or preset target response time for each data volume in the automatic hierarchical volume.
4. The method of claim 3, wherein performing the corresponding bandwidth adjustment according to the current response time and the corresponding target response time of each data volume by using an automatic quality of service technique comprises:
and if the current response time of the data volume does not match the corresponding target response time, performing bandwidth adjustment.
5. An automated quality of service management apparatus for a storage array, comprising:
the acquisition module is used for acquiring target response time corresponding to the data volume accessed by each server; wherein the data volume belongs to an automatically layered volume of a storage array;
the adjusting module is used for performing corresponding bandwidth adjustment by utilizing an automatic quality of service technology according to the current response time and the corresponding target response time of each data volume;
further comprising: a creation module to create the automatically layered volume in the storage array.
6. The automated quality of service management apparatus for storage arrays according to claim 5, wherein the obtaining module comprises:
and the obtaining submodule is used for obtaining the target response time corresponding to each data volume according to the preset priority or the preset target response time corresponding to each data volume.
7. The automated quality of service management apparatus for storage arrays of claim 6, further comprising:
and the setting module is used for setting the corresponding preset priority or preset target response time for each data volume in the automatic hierarchical volume.
8. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the method for automated quality of service management of a storage array according to any one of claims 1 to 4.
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| CN109032503B (en) * | 2018-06-14 | 2021-04-16 | 浙江大华存储科技有限公司 | Flow control method and device for data migration bandwidth of solid state disk |
| CN108897494B (en) * | 2018-06-15 | 2022-02-18 | 郑州云海信息技术有限公司 | Processing method of data operation in block storage system and related device |
| CN109710179B (en) * | 2018-12-06 | 2022-01-28 | 杭州宏杉科技股份有限公司 | Storage service quality control method and device |
| CN111506425B (en) * | 2020-04-14 | 2021-12-17 | 星辰天合（北京）数据科技有限公司 | Method and device for processing quality of service data |
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