CN109032523A - A kind of disk unit driving method, system, device and readable storage medium storing program for executing - Google Patents
A kind of disk unit driving method, system, device and readable storage medium storing program for executing Download PDFInfo
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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
- G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
- G06F3/0659—Command handling arrangements, e.g. command buffers, queues, command scheduling
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Abstract
This application discloses a kind of disk unit driving methods, due to the promotion of cpu performance, cpu resource in high-end devices is no longer in short supply, focus on how reducing using these cpu resources for higher efficiency handles time and delay, therefore can want to reduce the cpu resource occupied introduced request structure and block device subsystem directly around conventional magnetic disk apparatus driving method, directly requested using BIO processing function processing file system with the I/O of BIO construction packages, time complexity is reduced in a manner of increasing space complexity, it is able to possess lower processing time and I/O processing delay.The application further simultaneously discloses a kind of disk unit drive system, device and computer readable storage medium, has above-mentioned beneficial effect.
Description
Technical field
This application involves device drives technical field, in particular to a kind of disk unit driving method, system, device and meter
Calculation machine readable storage medium storing program for executing.
Background technique
Traditional Linux disk unit driving method is based on request (for setting to block defined in linux system
Standby driving layer submits the data structure of I/O request) realize.I.e. positioned at file system lower layer block device subsystem first with
With BIO structure, (one kind that linux system kernel defines is set for file system layer to block request construction packages file system
Standby layer submits the data structure of I/O request, describe the direction of I/O request, the data buffer zone in memory, data length and
The logical start address of block device) the I/O request that issues, packaged I/O request is then submitted to corresponding disk unit
(disk) in block device (block device) request queue (request_queue), the scheduling of each request queue later
Algorithm can call the request of corresponding disk unit driver that processing function is requested to be handled, and finally pass through disk end again
Object run is issued to corresponding disk (as shown in Figure 1) by mouth.
This disk unit driving method is initially based on the data processing equipment exploitation of low performance, and being can be with less
Cpu resource complete object run because block device subsystem can when submitting request queue of the request to corresponding block device,
Each I/O with request construction packages arranged in request queue is requested the operation such as to be ranked up, merge, is significantly subtracted
Tracking operand of the disk unit when handling I/O request is corresponded to less, to improve the I/O throughput of disk unit.
Since the chip manufacturing process developed along Moore's Law is horizontal, for the scheme that the performance of processor proposes than before
Have and be obviously improved, is reducing occupancy CPU compared to the merging and sorting operation for passing through request structure and block device subsystem
The effort that aspect of performance is made, increased CPU processing time and the corresponding I/O processing delay increased then seem more now
Important, conventional magnetic disk apparatus driving method has been fallen behind.
Therefore, items technological deficiency existing for conventional magnetic disk apparatus driving method how is overcome, when a kind of CPU processing is provided
Between shorter, the I/O processing lower disk unit driving method that is delayed be those skilled in the art's urgent problem to be solved.
Summary of the invention
The purpose of the application is to provide a kind of disk unit driving method, due to the promotion of cpu performance, in high-end devices
Cpu resource is no longer in short supply, has focused on how being reduced using these cpu resources for higher efficiency is handled the time and prolonged
When, therefore can want to reduce the introduced request structure of the cpu resource occupied directly around conventional magnetic disk apparatus driving method
With block device subsystem, directly requested using BIO processing function processing file system with the I/O of BIO construction packages, to increase sky
Between the mode of complexity reduce time complexity, be able to possess lower processing time and I/O processing delay.
The another object of the application is the provision of a kind of disk unit drive system, device and computer-readable storage medium
Matter.
To achieve the above object, the application provides a kind of disk unit driving method, this method comprises:
Receive the I/O request that file system is issued with BIO structure；
It calls BIO request processing function to handle the I/O request, obtains object run and destination path；
The object run is issued to corresponding disk by the destination path.
Optionally, the disk unit driving method further include:
Name is named at different paths respectively in the different paths that same disk is had, and according to each pathname
The table of comparisons is established in corresponding management between corresponding disk port；
It is corresponding, object run and destination path are obtained, specifically:
Obtain the pathname of the object run and the destination path；
It is corresponding, the object run is issued to by corresponding disk by the destination path, specifically:
Target disk corresponding with pathname port is checked in the table of comparisons, and the object run is passed through
The target disk port is issued to corresponding disk.
Optionally, the object run is issued to corresponding disk by the target disk port, comprising:
The object run is issued to the target disk port by scsi command, so that the target disk port
The object run is issued to corresponding disk by the communication link established between corresponding disk by itself.
Optionally, after the object run is issued to corresponding disk by the destination path, further includes:
Receive the operation implementing result that corresponding disk returns；
Determine the executive condition of I/O request according to the operation implementing result, and described in reporting by preset path
Executive condition.
To achieve the above object, present invention also provides a kind of disk unit drive system, which includes:
I/O request reception unit, the I/O request issued for receiving file system with BIO structure；
I/O requesting processing, for calling BIO request processing function to handle I/O request, obtain object run and
Destination path；
Object run corresponds to issuance unit, for the object run to be issued to corresponding magnetic by the destination path
Disk.
Optionally, the disk unit drive system further include:
The name of multipath disk and the table of comparisons establish unit, and the different paths for same disk to have are respectively with difference
Pathname be named, and the table of comparisons is established according to the corresponding management between each pathname and corresponding disk port；
It is corresponding, the I/O requesting processing specifically:
Obtain the pathname of the object run and the destination path；
Corresponding, the object run corresponds to issuance unit specifically:
Target disk corresponding with pathname port is checked in the table of comparisons, and the object run is passed through
The target disk port is issued to corresponding disk.
Optionally, the object run corresponds to issuance unit, comprising:
The object run is issued to the target disk port by scsi command, so that the target disk port
The object run is issued to corresponding disk by the communication link established between corresponding disk by itself.
Optionally, the disk unit drive system further include:
Implementing result receiving unit is operated, the operation implementing result returned for receiving corresponding disk；
Executive condition determination and reporting unit, for determining the execution of the I/O request according to the operation implementing result
Situation, and the executive condition is reported by preset path.
To achieve the above object, present invention also provides a kind of disk unit driving device, which includes:
Memory, for storing computer program；
Processor realizes the disk unit driving method as described in above content when for executing the computer program
The step of.
To achieve the above object, described computer-readable to deposit present invention also provides a kind of computer readable storage medium
It is stored with computer program on storage media, the magnetic as described in above content is realized when the computer program is executed by processor
The step of disc apparatus driving method.
Obviously, a kind of disk unit driving method provided herein, due to the promotion of cpu performance, in high-end devices
Cpu resource it is no longer in short supply, focused on how higher efficiency reduced using these cpu resources processing the time and
Delay, therefore can want to reduce the introduced request knot of the cpu resource occupied directly around conventional magnetic disk apparatus driving method
Structure and block device subsystem are directly requested using BIO processing function processing file system with the I/O of BIO construction packages, to increase
The mode of space complexity reduces time complexity, is able to possess lower processing time and I/O processing delay.The application is simultaneously
A kind of disk unit drive system, device and computer readable storage medium are additionally provided, there is above-mentioned beneficial effect, herein not
It repeats again.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of application for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the logical construction schematic diagram of conventional magnetic disk apparatus driving method；
Fig. 2 is a kind of flow chart of disk unit driving method provided by the embodiments of the present application；
Fig. 3 is a kind of logical construction schematic diagram that the multipath disk based on divice mapper is directed toward；
Fig. 4 is the flow chart of another disk unit driving method provided by the embodiments of the present application；
Fig. 5 is a kind of logical construction schematic diagram of disk unit driving method provided by the embodiments of the present application；
Fig. 6 is a kind of structural block diagram of disk unit drive system provided by the embodiments of the present application.
Specific embodiment
The core of the application is to provide a kind of disk unit driving method, system, device and computer readable storage medium,
Due to the promotion of cpu performance, the cpu resource in high-end devices is no longer in short supply, focused on how the benefit of higher efficiency
Processing time and delay are reduced with these cpu resources, therefore can want to reduce directly around conventional magnetic disk apparatus driving method
The introduced request structure of the cpu resource of occupancy and block device subsystem directly handle file system using BIO processing function
System is requested with the I/O of BIO construction packages, and time complexity is reduced in a manner of increasing space complexity, is able to possess lower
Handle time and I/O processing delay.
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art
All other embodiment obtained without making creative work, shall fall in the protection scope of this application.
Embodiment one
Below in conjunction with Fig. 2, Fig. 2 is a kind of flow chart of disk unit driving method provided by the embodiments of the present application, tool
Body the following steps are included:
S101: the I/O request that file system is issued with BIO structure is received；
This step is intended to receive the I/O request issued from file system, in linux system under core framework, file system
The I/O request issued is issued with BIO data structure, and it is slow that the direction of I/O request, the data in memory are described in this structure
Rush logical start address's (i.e. logical block number (LBN)) of area, data length and block device.
S102: BIO request processing function processing I/O request is called, object run and destination path are obtained；
On the basis of S101, this step is intended to call directly BIO request processing function and asks to handle the I/O received
It asks, to obtain object run and destination path from the I/O request encapsulated with BIO data structure, wherein whether object run
It is specific need to be gone by the disk unit of bottom that is executed operate, including write operation (read), read operation (write) and opening
(open) is operated with creation, destination path is that a direction is corresponding hard disk " road ", will pass through this " road " for object run
It is issued to corresponding disk.
It should be noted that, often according to complicated actual demand, a disk may under current system application environment
There can be mulitpath, i.e., a plurality of different path finally all points to a disk, but the length of each path may be different, but
It is essentially all " reaching the same goal by different routes " that this kind of function is commonly known as the multipath function of disk unit.
And the disk unit multipath function of current linux system, it is the device mapper by kernel
(device mapper is the common apparatus mapping mechanism of support logic volume management in linux kernel, it is realization for storing
The Block Device Driver of resource management provides the core architecture of a high modularization) module realization, device mapper mould
The disk unit that block can recognize disk driver confirms that it is that an individual disk is set according to the title of equipment
An identical disk unit that is standby, or passing through different path discoveries.If situation belongs to the latter, it can generate a tool
There is the visible new equipment of same names to indicate this multipath disk unit, the ordinary magnetic disc with identical device name is set
It is standby, it is exactly the path (path) of this multipath disk unit.
When the I/O request from file system is submitted to multipath disk unit in the form of request
When request_queue, request is forwarded to by the dispatching algorithm meeting passage path selection algorithm of this request_queue
One of path (path) of multipath disk drive.As it was noted above, this path is a disk unit in fact, it has
The request_queue of oneself is transmitted to its request by the request request processing function of disk unit driver
Processing.So the process in selection path, is exactly the process of a forwarding request, this part can be found in Fig. 3.
And the application is to realize higher CPU processing speed and lower I/O request processing delay, without with request
Structure encapsulation of data again, without the equipment subsystem using each disk of block to each I/O for being arranged in request_queue
Request is ranked up and union operation, correspondingly, the multipath function of conventional magnetic disk apparatus also can not normal use, need corresponding
Be modified.It is different from representation method special based on device mapper and multipath disk as shown in Figure 4, Ke Yizhi
The different paths by identical disk is directed toward are connect with different pathnames, only these pathnames finally all point to a unique object
Manage disk, be similar to many-to-one mapping relations, therefore also just do not have to deliberately go distinguish whether be multipath disk and
Ordinary magnetic disc, only the corresponding path of the multiple several pathnames of multipath disk can lead to this disk.
S103: object run is issued to by corresponding disk by destination path.
On the basis of S102, this step is intended to the destination path by determining and object run is issued to corresponding magnetic
Disk.Level as shown in connection with fig. 3, a kind of implementation for including but is not limited to are as follows:
Object run is issued to target disk corresponding with destination path port by scsi command, so that target disk
Port passes through the communication link itself established between corresponding disk and object run is issued to corresponding disk.Wherein, SCSI
(Small Computer System Interface, small computer system interface) defines the hardware+software of complete set
Specification, realizes connection and the data access of host and external equipment, and is generally used for enterprise information system.
Further, it is also contemplated that after being issued to corresponding disk to object run, receive the operation returned by disk
Implementing result, in order to which topmost paper system confirms the executive condition of this I/O operation, if it exists exception or problem can also and
Shi Faxian is simultaneously repaired.Further, be also based on log form record in detail the issuing of the request of I/O each time,
Feedback procedure uses in order to which the later period traces.
Based on the above-mentioned technical proposal, a kind of disk unit driving method provided by the embodiments of the present application, due to cpu performance
It is promoted, the cpu resource in high-end devices is no longer in short supply, has focused on how higher efficiency utilizes these cpu resources
Time and delay are handled to reduce, therefore can want to reduce the cpu resource occupied directly around conventional magnetic disk apparatus driving method
Introduced request structure and block device subsystem, directly using BIO processing function processing file system with BIO structure envelope
The I/O of dress is requested, and time complexity is reduced in a manner of increasing space complexity, is able to possess lower processing time and I/O
Processing delay.
Embodiment two
Below in conjunction with Fig. 4, Fig. 4 is the flow chart of another disk unit driving method provided by the embodiments of the present application, this
Embodiment on the basis of example 1, provides a kind of each path for multipath disk and is named as different pathnames,
And the mode of the table of comparisons is established to provide multipath function according to the corresponding management between each pathname and corresponding disk port, it is not necessarily to
The misoperation probability of user terminal is also reduced by the processing of block device subsystem, and due to invisible, specific implementation step is such as
Under:
S201: the I/O request that file system is issued with BIO structure is received；
S202: name is named at different paths respectively in the different paths that same disk is had, and according to each path
Name establishes the table of comparisons with the corresponding management between corresponding disk port；
Such as disk A possesses 5 different paths, is X1, X2, X3, X4 and X5 respectively, and by difference in the table of comparisons
The corresponding relationship of X1 → A, X2 → A, X3 → A, X4 → A and X5 → A are established, signified corresponding relationship refers to leading to herein
The data transmission port of disk A.
S203: BIO request processing function processing I/O request is called, the pathname of object run and destination path is obtained；
S204: target disk corresponding with pathname port is checked in the table of comparisons, and object run is passed through into target magnetic
Disk port is issued to corresponding disk；
S205: the operation implementing result that corresponding disk returns is received, and holding for I/O request is determined according to operation implementing result
Market condition, and executive condition is reported by preset path.
The present embodiment also adds S205 step for confirming that the I/O of bottom disk requests executive condition, by default
Path reports executive condition, to be fed back or be noted abnormalities in time and failure.Wherein, preset path can voluntarily be set by user
It is fixed, the measures such as instant messaging program, mail, interface pop-up, prompt tone, warning lamp are specifically included, herein and are not specifically limited,
It can flexible choice according to the actual situation.
Embodiment three
The present embodiment, in conjunction with the hierarchical structure of Fig. 1, Fig. 3, gives a kind of specific reality on the basis of the various embodiments described above
The logical schematic of existing mode, refers to Fig. 5:
The disk unit driving method under a kind of linux system is present embodiments provided, for driving External memory equipment
It is mapped to the logic magnetic disc equipment (LUN) of host system, this method directly handles sealing with BIO data structure from file system
The I/O of dress is requested, no longer via the secondary encapsulation of the request data structure of block device subsystem (block subsystem),
It can be around the block device subsystem of linux system and these block device subsystems to being arranged in request_queue
The operations such as sequence and merging that each I/O request carries out.For External memory equipment, I/O request eventually falls in storage and is situated between
Operation in matter is the work of array of storage devices (RAID), does relevant sequence work in host side and is not worth, Er Qielang
Take the valuable CPU time, increases I/O processing delay.
It is provided by the present application since I/O request of the file system to device file is encapsulated with BIO data structure
Driving method constructs the BIO that one can directly parse the I/O request of BIO data structure performance and handles function,
Find the required following key factor of I/O request operation: the data buffer zone I/O, I/O data length, starting block and the side I/O
To (reading or writing).
Wherein, it is different from traditional multipath function as shown in Figure 4, the realization of multipath function is integrated in by the present embodiment
In multipath disk driver, in which:
1. path discovery function is realized in the device enumeration stage.In the device object of the multipath disk driver, packet
Containing the data for indicating group of paths, the equipment for having identical device name of discovery can be stored in the device enumeration stage
It creates in the group of paths of device object, rather than creates new device object.Group of paths data in this device object supply
The Path selection function of later I/O Request uses.
2. Path selection/load-balancing function requests to select in processing function by the path in call driver in BIO
Select function realization.Before treatment, meeting passage path selection algorithm selects a paths, further according to the path of selection, structure to BIO
Make corresponding scsi command.This scsi command will be transmitted to the processing of HBA driver later.
Wherein, HBA (Host Bus Adapter, host bus adaptor) is one and mentions between server and storage device
For the circuit board and/or integrated circuit adapter of input/output (I/O) processing and physical connection.Because HBA alleviates main process task
For device in the burden of data storage and search task, it can be improved the performance of server.One HBA and the disk being attached thereto
System is referred to as a disk channel sometimes along.
Because situation is complicated, it can not enumerate and be illustrated, those skilled in the art should be able to recognize according to the application
The basic skills principle combination actual conditions of offer may exist many examples, in the case where not paying enough creative works,
It should within the scope of protection of this application.
Fig. 6 is referred to below, Fig. 6 is a kind of structural block diagram of disk unit drive system provided by the embodiments of the present application,
The disk unit drive system may include:
I/O request reception unit 100, the I/O request issued for receiving file system with BIO structure；
I/O requesting processing 200 obtains target behaviour for calling BIO request processing function to handle the I/O request
Work and destination path；
Object run corresponds to issuance unit 300, for the object run to be issued to correspondence by the destination path
Disk.
Further, the disk unit drive system further include:
The name of multipath disk and the table of comparisons establish unit, and the different paths for same disk to have are respectively with difference
Pathname be named, and the table of comparisons is established according to the corresponding management between each pathname and corresponding disk port；
It is corresponding, the I/O requesting processing 200 specifically:
Obtain the pathname of the object run and the destination path；
Corresponding, the object run corresponds to issuance unit 300 specifically:
Target disk corresponding with pathname port is checked in the table of comparisons, and the object run is passed through
The target disk port is issued to corresponding disk.
Wherein, the object run corresponds to issuance unit 300 and may include:
The object run is issued to the target disk port by scsi command, so that the target disk port
The object run is issued to corresponding disk by the communication link established between corresponding disk by itself.
Further, which can also include:
Implementing result receiving unit is operated, the operation implementing result returned for receiving corresponding disk；
Executive condition determination and reporting unit, for determining the execution of the I/O request according to the operation implementing result
Situation, and the executive condition is reported by preset path.
Based on the above embodiment, present invention also provides a kind of disk unit driving device, the apparatus may include storages
Device and processor, wherein have computer program in the memory, which calls the computer program in the memory
When, step provided by above-described embodiment may be implemented.Certainly, which can also include various necessary network interfaces, electricity
Source and other components etc..
Present invention also provides a kind of computer readable storage mediums, have computer program thereon, the computer program
Step provided by above-described embodiment may be implemented when being performed terminal or processor execution.The storage medium may include: U
Disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access
Memory, RAM), the various media that can store program code such as magnetic or disk.
Specific examples are used herein to illustrate the principle and implementation manner of the present application, and adopts between each embodiment
Described with progressive mode, each embodiment focuses on the differences from other embodiments, each embodiment it
Between same and similar part may refer to each other.For the device disclosed in the embodiment, as itself and method disclosed in embodiment
Corresponding, relevant portion can directly visit method part.Above the explanation of each embodiment is used to help understand the core of the application
Thought thinks, for those skilled in the art, several improvement for carrying out under core concept guidance and repairs
Decorations should also be fallen into the protection scope of the claim of this application.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also other elements including being not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or equipment for including element.
Claims (10)
1. a kind of disk unit driving method characterized by comprising
Receive the I/O request that file system is issued with BIO structure；
It calls BIO request processing function to handle the I/O request, obtains object run and destination path；
The object run is issued to corresponding disk by the destination path.
2. disk unit driving method according to claim 1, which is characterized in that further include:
Name is named at different paths respectively in the different paths that same disk is had, and according to each pathname with it is right
The corresponding management between disk port is answered to establish the table of comparisons；
It is corresponding, object run and destination path are obtained, specifically:
Obtain the pathname of the object run and the destination path；
It is corresponding, the object run is issued to by corresponding disk by the destination path, specifically:
Target disk corresponding with pathname port is checked in the table of comparisons, and by the object run described in
Target disk port is issued to corresponding disk.
3. disk unit driving method according to claim 2, which is characterized in that the object run is passed through the mesh
Mark disk port is issued to corresponding disk, comprising:
The object run is issued to the target disk port by scsi command, so that the target disk port passes through
The object run is issued to corresponding disk by the communication link itself established between corresponding disk.
4. disk unit driving method according to any one of claims 1 to 3, which is characterized in that passing through the target
The object run is issued to after corresponding disk by path, further includes:
Receive the operation implementing result that corresponding disk returns；
The executive condition of the I/O request is determined according to the operation implementing result, and the execution is reported by preset path
Situation.
5. a kind of disk unit drive system characterized by comprising
I/O request reception unit, the I/O request issued for receiving file system with BIO structure；
I/O requesting processing obtains object run and target for calling BIO request processing function to handle the I/O request
Path；
Object run corresponds to issuance unit, for the object run to be issued to corresponding disk by the destination path.
6. disk unit drive system according to claim 5, which is characterized in that further include:
The name of multipath disk and the table of comparisons establish unit, and the different paths for same disk to have are respectively with different roads
Diameter name is named, and establishes the table of comparisons according to the corresponding management between each pathname and corresponding disk port；
It is corresponding, the I/O requesting processing specifically:
Obtain the pathname of the object run and the destination path；
Corresponding, the object run corresponds to issuance unit specifically:
Target disk corresponding with pathname port is checked in the table of comparisons, and by the object run described in
Target disk port is issued to corresponding disk.
7. disk unit drive system according to claim 6, which is characterized in that the corresponding lower bill of the object run
Member, comprising:
The object run is issued to the target disk port by scsi command, so that the target disk port passes through
The object run is issued to corresponding disk by the communication link itself established between corresponding disk.
8. according to the described in any item disk unit drive systems of claim 5 to 7, which is characterized in that further include:
Implementing result receiving unit is operated, the operation implementing result returned for receiving corresponding disk；
Executive condition determination and reporting unit, for determining the executive condition of the I/O request according to the operation implementing result,
And the executive condition is reported by preset path.
9. a kind of disk unit driving device characterized by comprising
Memory, for storing computer program；
Processor is realized when for executing the computer program such as the described in any item disk unit drivings of Claims 1-4
The step of method.
10. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program realizes such as Claims 1-4 described in any item disk unit driving sides when the computer program is executed by processor
The step of method.
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| CN201810834200.5A CN109032523B (en) | 2018-07-26 | 2018-07-26 | Disk device driving method, system, device and readable storage medium |
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| CN201810834200.5A CN109032523B (en) | 2018-07-26 | 2018-07-26 | Disk device driving method, system, device and readable storage medium |
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