CN109614047B - IO transmission method between hosts, storage system and readable storage medium - Google Patents
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- 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
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- 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
- G06F3/0625—Power saving in storage systems
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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
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Abstract
The invention discloses an IO transmission method between hosts, which is based on a storage system, and comprises the steps of receiving and analyzing an IO transmission command sent by a first host to obtain an IO transmission task, obtaining a first storage unit corresponding to the first host and a second storage unit corresponding to a second host when the IO transmission task is judged to be the IO transmission task between the first host and the second host, converting the IO transmission task into a storage IO transmission task between the first storage unit and the second storage unit, and executing the storage IO transmission task. The data is directly connected from the first storage unit to the second storage unit from the original requirement through the first storage unit, the first host, the second host and the second storage unit, so that the resource overhead is greatly saved for the first host and the second host, and the IO transmission between the hosts is accelerated. The invention also provides a storage system and a computer readable storage medium, which have the beneficial effects.
Description
Technical Field
The present invention relates to the field of storage technologies, and in particular, to a method for transmitting IO between hosts, a storage system, and a computer-readable storage medium.
Background
Nowadays, the successful use of the back-end storage system partition meets the requirements of the security and the stability of data issued by a server host. The successful use of the cache and the flash memory meets the requirements of various computer fields on computing resources and computing rate, and greatly accelerates the data processing speed.
In the prior art, the IO transmission mode between the hosts is that when one host sends data to another host, the host needs to call the data from the storage unit corresponding to the host of the sender and transmit the data to the host of the receiver, and the host of the receiver stores the data in the corresponding storage unit, which is equivalent to that the data passes through four nodes and three transmission lines, and thus the resource overhead of the host is greatly influenced.
Therefore, how to improve the IO transmission management between the host and the host, thereby reducing the resource overhead at the host end and speeding up the IO transmission between the host and the host is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide an IO transmission method between hosts, a storage system and a computer readable storage medium, which are used for improving the IO transmission management between the hosts, thereby reducing the resource overhead of the host and accelerating the IO transmission between the hosts.
In order to solve the above technical problem, the present invention provides a method for transmitting IO between hosts, based on a storage system, including:
receiving and analyzing an IO transmission command sent by a first host to obtain an IO transmission task;
when the IO transmission task is the IO transmission task between the first host and the second host, acquiring a first storage unit corresponding to the first host and a second storage unit corresponding to the second host;
converting the IO transmission task into a storage IO transmission task between the first storage unit and the second storage unit;
and executing the storage IO transmission task.
Optionally, the executing the storage IO transmission task specifically includes:
and executing the storage IO transmission tasks according to the generated time sequence.
Optionally, before the executing the storage IO transmission task, the method further includes:
receiving transmission setting of the storage IO transmission task;
correspondingly, the executing the storage IO transmission task specifically includes:
and executing the storage IO transmission task according to the transmission setting.
Optionally, the transmission setting specifically includes an IOPS setting and/or a bandwidth setting of the number of read/write times per second.
Optionally, the method further includes:
distributing a transmission queue for the storage IO transmission task according to the transmission path of the storage IO transmission task;
wherein the transmission queues are in one-to-one correspondence with the transmission settings.
Optionally, the method further includes:
calculating IO delay time according to the number of the storage IO transmission tasks;
and sending the IO delay time to the first host.
Optionally, the method further includes:
and when the IO delay time is larger than a preset value, the execution of the storage IO transmission task is suspended.
To solve the above technical problem, the present invention further provides a storage system, including:
the analysis unit is used for receiving and analyzing the IO transmission command sent by the first host to obtain an IO transmission task;
the obtaining unit is used for obtaining a first storage unit corresponding to the first host and a second storage unit corresponding to the second host when the IO transmission task is the IO transmission task between the first host and the second host;
the conversion unit is used for converting the IO transmission task into a storage IO transmission task between the first storage unit and the second storage unit;
and the transmission unit is used for executing the storage IO transmission task.
To solve the above technical problem, the present invention further provides a storage system, including:
a memory for storing instructions, wherein the instructions include the steps of any one of the methods for transferring IO between the hosts;
a processor to execute the instructions.
To solve the above technical problem, the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the IO transmission method between hosts as described in any one of the above.
The method for transmitting IO between hosts, provided by the invention, is based on a storage system, receives and analyzes an IO transmission command sent by a first host to obtain an IO transmission task, acquires a first storage unit corresponding to the first host and a second storage unit corresponding to the second host when the IO transmission task is judged to be the IO transmission task between the first host and the second host, converts the IO transmission task into a storage IO transmission task between the first storage unit and the second storage unit, and executes the storage IO transmission task. The data is directly connected from the first storage unit to the second storage unit instead of passing through the first host or the second host from the original requirement through the first storage unit, the first host, the second host and the second storage unit, so that the resource overhead is greatly saved for the first host and the second host, and the IO transmission between the hosts is accelerated. The invention also provides a storage system and a computer readable storage medium, which have the beneficial effects and are not described herein again.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a flowchart of an IO transmission method between hosts according to a first embodiment of the present invention;
fig. 2 is a flowchart of an IO transmission method between hosts according to a second embodiment of the present invention;
fig. 3 is a flowchart of an IO transmission method between third hosts according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a memory system according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another storage system according to an embodiment of the present invention.
Detailed Description
The core of the invention is to provide an IO transmission method between hosts, a storage system and a computer readable storage medium, which are used for improving the IO transmission management between the hosts, thereby reducing the resource overhead of the host end and accelerating the IO transmission between the hosts.
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Fig. 1 is a flowchart of a first method for IO transmission between hosts according to an embodiment of the present invention. As shown in fig. 1, the method for transmitting IO between hosts includes:
s10: and receiving and analyzing an IO transmission command sent by the first host to obtain an IO transmission task.
In practical applications, the storage system includes a processor and a memory, and the scheme provided by the embodiment of the invention can be executed based on the processor of the storage system. Based on the partitioning technique, the storage system includes a plurality of storage units, i.e., logical volumes LUNs.
And after receiving an IO transmission command sent by the first host, analyzing to obtain an IO transmission task comprising data to be transmitted, a sending address, a receiving address and the like.
S11: when the IO transmission task is an IO transmission task between a first host and a second host, a first storage unit corresponding to the first host and a second storage unit corresponding to the second host are obtained.
S12: and converting the IO transmission task into a storage IO transmission task between the first storage unit and the second storage unit.
In the prior art, a first host transmits data to a second host, and the data needs to be first retrieved from a first storage unit corresponding to the first host and then sent to the second host, and the second host is stored in a corresponding second storage unit. In fact, the first storage unit and the second storage unit may be in the same storage system, so that the storage system-based processor converts an IO transmission task between the first host and the second host into a storage IO transmission task between the first storage unit and the second storage unit after acquiring the first storage unit corresponding to the first host and the second storage unit corresponding to the second host, thereby greatly saving a transmission path, and transmitting data without passing through the first host and the second host, thereby greatly saving resource overhead of the hosts.
S13: and executing the storage IO transmission task.
After the storage system executes the storage IO transmission task, the storage system may send a feedback of completion of execution to the first host or the second host.
Further, executing a storage IO transmission task specifically includes:
and executing the storage IO transmission tasks according to the generated time sequence.
The storage IO transmission tasks can be executed according to the time sequence of arrival of the IO transmission tasks between the first host and the second host to the storage system, the storage IO transmission tasks can also be executed according to the time sequence of the storage IO transmission tasks generated through conversion, and the storage IO transmission tasks can also be executed according to the preset priority level of the storage IO transmission tasks.
The method for transmitting the IO between the hosts, provided by the embodiment of the invention, includes the steps of receiving and analyzing an IO transmission command sent by a first host to obtain an IO transmission task, acquiring a first storage unit corresponding to the first host and a second storage unit corresponding to a second host when the IO transmission task is judged to be the IO transmission task between the first host and the second host, converting the IO transmission task into a storage IO transmission task between the first storage unit and the second storage unit, and executing the storage IO transmission task, based on a storage system. The data is directly connected from the first storage unit to the second storage unit instead of passing through the first host or the second host from the original requirement through the first storage unit, the first host, the second host and the second storage unit, so that the resource overhead is greatly saved for the first host and the second host, and the IO transmission between the hosts is accelerated.
Fig. 2 is a flowchart of an IO transmission method between hosts according to a second embodiment of the present invention. As shown in fig. 2, on the basis of the foregoing embodiment, in another embodiment, before step S13, the method for transferring an IO between hosts further includes:
s20: receiving a transmission setting for a storage IO transmission task.
Correspondingly, step S13 executes a storage IO transfer task, specifically:
s21: and executing the storage IO transmission task according to the transmission setting.
In a specific implementation, the transmission setting may specifically be a read/write times per second IOPS setting and/or a bandwidth setting.
Further, the method can also comprise the following steps:
allocating a transmission queue for the storage IO transmission task according to the transmission path of the storage IO transmission task;
wherein the transmission queues are in one-to-one correspondence with the transmission settings.
For example, for different memory partitions D disk, E disk, and F disk in the memory system, a first transmission queue may be set corresponding to a transmission path between the D disk and the E disk, and a second transmission queue may be set corresponding to a transmission path … … between the E disk and the F disk, to receive transmission settings of users for each transmission queue, and to allocate work threads according to the transmission settings for different transmission queues.
The method for transmitting IO between hosts according to the embodiments of the present invention further includes executing the storage IO transmission task according to the setting of the user, and further includes dividing the storage IO transmission tasks of different transmission paths into different transmission queues, where each transmission queue corresponds to a different transmission setting, so as to facilitate adaptive adjustment of execution of the storage IO transmission task according to the processing status of the storage system.
Fig. 3 is a flowchart of an IO transmission method between third hosts according to an embodiment of the present invention. As shown in fig. 3, based on the foregoing embodiment, in another embodiment, the method for transferring an IO between hosts further includes:
s30: and calculating the IO delay time according to the number of the storage IO transmission tasks.
When the storage IO transmission tasks are more, congestion may be caused to the storage system, and the storage IO transmission tasks waiting for a longer time may be forced to be interrupted.
In specific implementation, the IO delay time may be calculated according to the number of storage IO transmission tasks or the number of threads occupied by each storage IO transmission task.
S31: and sending the IO delay time to the first host.
And sending the IO delay time to the first host so that the first host issues a transmission command for the storage IO transmission task, and if the execution of the storage IO transmission task is suspended, the storage IO transmission task is prevented from being interrupted due to overlong waiting time.
Further, the method can also comprise the following steps:
s32: and when the IO delay time is larger than a preset value, the execution of the storage IO transmission task is suspended.
Step S32 may be performed simultaneously with step S31.
The storage system can also automatically judge the relation between the IO delay time and the preset value, and when the IO delay time is larger than the preset value, the execution of the storage IO transmission task is suspended, so that the storage IO transmission task is prevented from being interrupted due to overlong waiting time.
Based on the above embodiment, the method for transmitting IO between hosts further includes calculating IO delay time according to the number of storage IO transmission tasks, and sending the IO delay time to the first host or suspending execution of the storage IO transmission tasks when the IO delay time is greater than a preset value, so as to avoid interruption of the storage IO transmission tasks due to overlong waiting time.
On the basis that the embodiments corresponding to the IO transmission method between the hosts are described in detail, the invention further discloses a storage system corresponding to the method.
Fig. 4 is a schematic structural diagram of a storage system according to an embodiment of the present invention. As shown in fig. 4, a storage system provided in an embodiment of the present invention includes:
the analysis unit 401 is configured to receive and analyze an IO transmission command sent by the first host to obtain an IO transmission task;
an obtaining unit 402, configured to obtain, when an IO transmission task is an IO transmission task between a first host and a second host, a first storage unit corresponding to the first host and a second storage unit corresponding to the second host;
a converting unit 403, configured to convert the IO transmission task into a storage IO transmission task between the first storage unit and the second storage unit;
a transmission unit 404, configured to perform a storage IO transmission task.
Since the embodiment of the storage system portion and the embodiment of the method portion correspond to each other, please refer to the description of the embodiment of the method portion for the embodiment of the storage system portion, which is not repeated here.
Fig. 5 is a schematic structural diagram of another storage system according to an embodiment of the present invention. As shown in FIG. 5, the storage system may vary widely in configuration or performance and may include one or more processors (CPUs) 510 (e.g., one or more processors) and memory 520, one or more storage media 530 (e.g., one or more mass storage devices) storing applications 533 or data 532. Memory 520 and storage media 530 may be, among other things, transient or persistent storage. The program stored on the storage medium 530 may include one or more modules (not shown), each of which may include a sequence of instructions operating on a storage system. Further, the processor 510 may be configured to communicate with the storage medium 530 to execute a series of instruction operations in the storage medium 530 on the storage system 500.
The storage system 500 may also include one or more power supplies 540, one or more wired or wireless network interfaces 550, one or more input-output interfaces 550, and/or one or more operating systems 531, such as Windows ServerTM，Mac OS XTM，UnixTM,LinuxTM，FreeBSDTMAnd so on.
The steps in the transfer of IO between hosts described above in fig. 1 to 3 are implemented by the storage system based on the structure shown in fig. 5.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the storage system and the computer-readable storage medium described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present application, it should be understood that the disclosed method, apparatus, storage system and storage medium may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of modules is merely a division of logical functions, and an actual implementation may have another division, for example, a plurality of modules or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form. Modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present application may be integrated into one processing module, or each of the modules may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
The integrated module, if implemented in the form of a software functional module and sold or used as a separate product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a function calling device, or a network device) to execute all or part of the steps of the method of the embodiments of the present application. And the aforementioned storage medium includes: 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 details of the IO transmission method between hosts, the storage system, and the storage medium provided in the present invention are described above. 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 disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. 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.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A method for transmitting IO between hosts is characterized in that based on a storage system, the method comprises the following steps:
receiving and analyzing an IO transmission command sent by a first host to obtain an IO transmission task;
when the IO transmission task is the IO transmission task between the first host and the second host, acquiring a first storage unit corresponding to the first host and a second storage unit corresponding to the second host;
converting the IO transmission task into a storage IO transmission task between the first storage unit and the second storage unit;
executing the storage IO transmission task;
the first storage unit and the second storage unit are located in the same storage system.
2. The transmission method according to claim 1, wherein the executing the storage IO transmission task specifically includes:
and executing the storage IO transmission tasks according to the generated time sequence.
3. The transfer method according to claim 1, further comprising, before the executing the storage IO transfer task:
receiving transmission setting of the storage IO transmission task;
correspondingly, the executing the storage IO transmission task specifically includes:
and executing the storage IO transmission task according to the transmission setting.
4. The transmission method according to claim 3, wherein the transmission setting specifically includes a read/write times per second IOPS setting and/or a bandwidth setting.
5. The transmission method according to claim 3, further comprising:
distributing a transmission queue for the storage IO transmission task according to the transmission path of the storage IO transmission task;
wherein the transmission queues are in one-to-one correspondence with the transmission settings.
6. The transmission method according to claim 1, further comprising:
calculating IO delay time according to the number of the storage IO transmission tasks;
and sending the IO delay time to the first host.
7. The transmission method according to claim 6, further comprising:
and when the IO delay time is larger than a preset value, the execution of the storage IO transmission task is suspended.
8. A storage system, comprising:
the analysis unit is used for receiving and analyzing the IO transmission command sent by the first host to obtain an IO transmission task;
the obtaining unit is used for obtaining a first storage unit corresponding to the first host and a second storage unit corresponding to the second host when the IO transmission task is the IO transmission task between the first host and the second host;
the conversion unit is used for converting the IO transmission task into a storage IO transmission task between the first storage unit and the second storage unit;
the transmission unit is used for executing the storage IO transmission task;
the first storage unit and the second storage unit are located in the same storage system.
9. A storage system, comprising:
a memory for storing instructions, the instructions comprising the steps of the method for transferring IO between hosts according to any one of claims 1 to 7;
a processor to execute the instructions.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for transfer of IO between hosts according to any one of claims 1 to 7.
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| US6408369B1 (en) * | 1998-03-12 | 2002-06-18 | Emc Corporation | Internal copy for a storage controller |
| CN101097557A (en) * | 2006-06-30 | 2008-01-02 | 索尼株式会社 | Information storage apparatus, information transfer method, information transfer system, program, and storage medium |
| CN103843309A (en) * | 2013-11-22 | 2014-06-04 | 华为技术有限公司 | Data synchronizing method and data synchronizing system |
| US9658797B1 (en) * | 2013-05-03 | 2017-05-23 | EMC IP Holding Company LLC | Storage provisioning in a data storage environment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6408369B1 (en) * | 1998-03-12 | 2002-06-18 | Emc Corporation | Internal copy for a storage controller |
| CN101097557A (en) * | 2006-06-30 | 2008-01-02 | 索尼株式会社 | Information storage apparatus, information transfer method, information transfer system, program, and storage medium |
| US9658797B1 (en) * | 2013-05-03 | 2017-05-23 | EMC IP Holding Company LLC | Storage provisioning in a data storage environment |
| CN103843309A (en) * | 2013-11-22 | 2014-06-04 | 华为技术有限公司 | Data synchronizing method and data synchronizing system |
| CN107741917A (en) * | 2017-10-19 | 2018-02-27 | 郑州云海信息技术有限公司 | A kind of improved IO current limlitings processing method and system |
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