CN115359834B - A disk arbitration area detection method, device, equipment and readable storage medium - Google Patents

Abstract

The application discloses a method, a device and equipment for detecting a disk arbitration region and a readable storage medium in the technical field of computers. The method provided by the application comprises the following steps: traversing each disk in the multi-control storage system, and if the target disk is traversed currently, determining a target node for detecting the target disk based on a preset load balancing strategy; detecting the response of an arbitration area in a target disk to IO by using a target node; and if the response is the IO error report message and the target disk is not the system arbitration disk, adding mark information of arbitration area fault for the target disk. According to the method and the device, all nodes in the system can balance detection tasks of all disks in the system, the pressure of the disk detection tasks and IO (input/output) services on the storage system can be balanced, and the non-RAID member disk with a smaller load in the system can be selected as an arbitration disk, so that the selection strategy of the arbitration disk can be optimized. The disk arbitration region detection device, the equipment and the readable storage medium provided by the application also have the technical effects.

Description

A disk arbitration area detection method, device, equipment and readable storage medium

technical field

The present application relates to the field of computer technology, in particular to a disk arbitration area detection method, device, equipment and readable storage medium.

Background technique

At present, an arbitration disk needs to be set in the storage system to record arbitration information. Based on the arbitration information, the master control node in the storage system can be conveniently determined, or the storage system can be split into several. Currently, member disks of a RAID (Redundant Arrays of Independent Disks, disk array) in a storage system may be detected, so as to determine which disks may be selected as arbitration disks according to the detected health status of the disks. When detecting each RAID member disk, the system needs to undertake both IO services and detection tasks. Therefore, the overall system load may be large, which will reduce the overall system performance.

Therefore, how to balance the pressure of the disk detection task and the IO service on the storage system is a problem to be solved by those skilled in the art.

Contents of the invention

In view of this, the purpose of the present application is to provide a disk arbitration area detection method, device, equipment and readable storage medium, so as to balance the pressure of the disk detection task and the IO service on the storage system. The specific plan is as follows:

In a first aspect, the present application provides a disk arbitration area detection method, including:

Traversing each disk in the multi-control storage system, if currently traversing to the target disk, then determine a target node for detecting the target disk based on a preset load balancing strategy; wherein, the target node is the target node in the multi-control storage system any node of

Using the target node to detect the response of the arbitration area in the target disk to the IO;

If the response is an IO error message and the target disk is not a system quorum disk, add the flag information of the quorum area failure to the target disk.

Optionally, the determining the target node for detecting the target disk based on a preset load balancing policy includes:

Acquire the correspondence between each node in the multi-control storage system and the disks to be detected from the preset load balancing strategy;

A target node for detecting the target disk is determined according to the corresponding relationship.

Optionally, the process of constructing the correspondence includes:

All the disks in the multi-control storage system are evenly allocated to each node in the multi-control storage system, and an allocation result is obtained;

The corresponding relationship is established according to the allocation result.

Optionally, using the target node to detect the response of the arbitration area in the target disk to the IO includes:

using the target node to read data stored in any segment of consecutive addresses in the arbitration area;

If the data reading fails, it is determined that the arbitration area responds to the IO by reporting an IO error message.

Optionally, before determining that the response of the arbitration area to the IO is the IO error message, the method further includes:

Perform a repair operation on the current continuous address, and if the repair of the current continuous address fails, perform the step of determining that the response of the arbitration area to the IO is the IO error message.

Optionally, performing the repair operation on the current continuous address includes:

Write randomly generated data into the current continuous address;

reading the randomly generated data from the current continuous address;

If the read randomly generated data is consistent with the written randomly generated data, it is determined that the repair of the current continuous address is successful; otherwise, it is determined that the repair of the current continuous address fails.

Optionally, also include:

If the read data is successful or the current continuous address is successfully repaired, when the tail address of the current continuous address is not the end address of the arbitration area, the target node is used to read the data stored in the next continuous address adjacent to the current continuous address. , and judge whether the data is read successfully.

Optionally, also include:

If the offline message of the target disk is obtained when reading data or the tail address of the current continuous address is the end address of the arbitration area, then wait for the next detection time point, so that when the next detection time point is reached, traverse to the next a disk.

Optionally, also include:

If the response is the IO error message and the target disk is the system arbitration disk, generate a failure prompt message for the system arbitration disk.

Optionally, after generating the fault prompt message of the system arbitration disk, the method further includes:

Collecting the tag information of each disk in the multi-control storage system;

The system arbitration disk is reselected based on the tag information of each disk.

Optionally, the reselecting the system arbitration disk based on the label information of each disk includes:

A disk without the tag information is used as a candidate disk, and the system arbitration disk is selected from among the candidate disks based on an arbitration disk selection policy.

Optionally, using the target node to detect the response of the arbitration area in the target disk to the IO includes:

using the target node to issue a read request and/or write request to the arbitration area;

Obtain a processing result of the arbitration area for the read request and/or the write request;

Taking the processing result of the arbitration area for the read request and/or the write request as the arbitration area's response to the IO.

In a second aspect, the present application provides a disk arbitration area detection device, including:

The traversal module is used to traverse each disk in the multi-control storage system. If the target disk is currently traversed, the target node for detecting the target disk is determined based on a preset load balancing strategy; wherein the target node is the Any node in the multi-control storage system;

A detection module, configured to use the target node to detect the response of the arbitration area in the target disk to IO;

The marking module is configured to add the marking information of the arbitration area failure to the target disk if the response is an IO error message and the target disk is not a system arbitration disk.

Optionally, the traversal module is specifically used to:

Obtain the corresponding relationship between each node in the multi-control storage system and the disk to be detected from the preset load balancing strategy; determine the target node for detecting the target disk according to the corresponding relationship.

Optionally, the process of constructing the correspondence includes:

All disks in the multi-control storage system are evenly allocated to each node in the multi-control storage system to obtain an allocation result; and the corresponding relationship is established according to the allocation result.

Optionally, the detection module includes:

The read IO detection unit is used to use the target node to read the data stored in any continuous address in the arbitration area; if the read data fails, it is determined that the response of the arbitration area to the IO is an error report for the IO information.

Optionally, the detection module also includes:

A repair unit, configured to perform a repair operation on the current continuous address before determining that the response of the arbitration area to the IO is the IO error message, and if the repair of the current continuous address fails, perform the determination of the arbitration area for the The IO response is the step of reporting an IO error message.

Optionally, the repair unit is specifically for:

Write the randomly generated data into the current continuous address; read the randomly generated data from the current continuous address; if the read randomly generated data is consistent with the written randomly generated data, then determine that the current continuous address is repaired successfully; otherwise, determine The current consecutive address repair failed.

Optionally, the detection module also includes:

The loop unit is used to read the next address adjacent to the current continuous address by using the target node when the tail address of the current continuous address is not the end address of the arbitration area if the data is read successfully or the current continuous address is repaired successfully. Data stored in a continuous address, and judge whether the data is read successfully.

Optionally, also include:

The timing module is used to wait for the next detection time point so as to reach the next detection time point if the offline message of the target disk is obtained when reading data or the tail address of the current continuous address is the end address of the arbitration area , traverse to the next disk.

Optionally, also include:

A prompt module, configured to generate a failure prompt message of the system arbitration disk if the response is the IO error message and the target disk is the system arbitration disk.

Optionally, also include:

The arbitration disk replacement module is configured to collect the label information of each disk in the multi-control storage system after the generation of the failure prompt message of the system arbitration disk; reselect the disk based on the label information of each disk. System quorum disk.

Optionally, the arbitration disk replacement module is specifically used for:

A disk without the tag information is used as a candidate disk, and the system arbitration disk is selected from among the candidate disks based on an arbitration disk selection policy.

Optionally, the detection module is specifically used for:

using the target node to issue a read request and/or write request to the arbitration area;

Obtain a processing result of the arbitration area for the read request and/or the write request;

Taking the processing result of the arbitration area for the read request and/or the write request as the arbitration area's response to the IO.

In a third aspect, the present application provides an electronic device, including:

memory for storing computer programs;

A processor, configured to execute the computer program, so as to implement the aforementioned disclosed disk arbitration area detection method.

In a fourth aspect, the present application provides a readable storage medium for storing a computer program, wherein, when the computer program is executed by a processor, the above disclosed disk arbitration area detection method is implemented.

From the above solutions, it can be seen that the present application provides a disk arbitration area detection method, including: traversing each disk in the multi-control storage system, if the current traversal to the target disk, then based on the preset load balancing strategy to determine the method for detecting the target The target node of the disk; wherein, the target node is any node in the multi-control storage system; using the target node to detect the response of the arbitration area in the target disk to IO; if the response is an IO error message and the target disk is not the system quorum disk, add the flag information of the quorum area failure to the target disk.

It can be seen that the present application detects the health status of each disk by traversing each disk in the multi-control storage system. If the target disk is currently traversed, the target node for detecting the target disk is determined based on the preset load balancing strategy, so that the All nodes in the system undertake the detection tasks of each disk in the system in a balanced manner, so that a certain node does not undertake more detection tasks, which affects the IO business on this node. When specifically detecting each disk, use the target node determined by the above steps to detect the response of the arbitration area in the target disk to IO; if the response is an IO error message and the target disk is not a system arbitration disk, add a flag for the arbitration area failure to the target disk Information, and then you can select the quorum disk for the system based on this tag information. Moreover, the present application detects each disk in the system, that is to say, each disk in the system has a probability of being selected as an arbitration disk, and the selection range is not limited to the RAID member disks in the system. Because the service load pressure of the non-RAID member disk in the storage system is generally small, it is more suitable to be selected as the arbitration disk. It can be seen that this application enables all nodes in the system to bear the detection tasks of each disk in the system in a balanced manner, which can balance the disk detection tasks and the pressure of the IO business on the storage system, and non-RAID member disks with less load in the system may also be selected as Arbitration disk, which can optimize the selection strategy of the arbitration disk.

Correspondingly, the disk arbitration area detection device, equipment and readable storage medium provided by the present application also have the above-mentioned technical effects.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present application, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

FIG. 1 is a flow chart of a disk arbitration area detection method disclosed in the present application;

FIG. 2 is a flow chart of another disk arbitration area detection method disclosed in the present application;

Fig. 3 is a schematic diagram of result processing of a verify IO disclosed in the present application;

Fig. 4 is a schematic diagram of the result processing of a write verify command disclosed in the present application;

FIG. 5 is a schematic diagram of a disc arbitration area detection device disclosed in the present application;

FIG. 6 is a schematic diagram of an electronic device disclosed in the present application.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

Currently, RAID member disks in the storage system can be detected to determine which disks can be selected as arbitration disks according to the detected disk health status. When detecting each RAID member disk, the system needs to undertake both IO services and detection tasks. Therefore, the overall system load may be large, which will reduce the overall system performance. For this reason, the present application provides a disk arbitration area detection scheme, which can balance the disk detection task and the pressure of the IO service on the storage system, and optimize the selection strategy of the arbitration disk.

Referring to Figure 1, the embodiment of the present application discloses a disk arbitration area detection method, including:

S101. Traverse each disk in the multi-control storage system, and if a target disk is currently traversed, determine a target node for detecting the target disk based on a preset load balancing policy.

It should be noted that the multi-control storage system includes multiple nodes and multiple disks, and all disks are visible to each node. In order to make each node share the detection task of each disk, each disk may be distributed to corresponding nodes in a balanced manner, so that each node undertakes the detection task of each disk in a balanced manner. Assuming that there are 2 nodes and 10 disks, each node can undertake the detection task of 5 disks. Wherein, the target node is any node in the multi-controller storage system.

In one embodiment, determining the target node for detecting the target disk based on the preset load balancing strategy includes: obtaining the correspondence between each node in the multi-control storage system and the disk to be detected from the preset load balancing strategy relationship; determine the target node for detecting the target disk according to the corresponding relationship. Wherein, the process of establishing the corresponding relationship includes: all the disks in the multi-control storage system are evenly allocated to each node in the multi-control storage system to obtain the allocation result; and the corresponding relationship is established according to the allocation result.

S102. Utilize the target node to detect the response of the arbitration area in the target disk to the IO.

It should be noted that part of the space in each disk is used as the arbitration area, and the other space is used to store business data. If a certain disk is selected as the system quorum disk, the quorum area in the disk is used to store quorum data. If a certain disk is not selected as the system quorum disk, the quorum area of the disk does not store any data. The arbitration area can be located at the end of the storage space of each disk, for example: 512M is reserved at the end of each disk as the arbitration area. The size of the arbitration area can be adjusted according to the actual situation.

In this embodiment, the purpose of detecting the response of the arbitration area to the IO is to detect whether there is a problem with the read-write function of the arbitration area. To this end, the target node is used to detect the response of the arbitration area in the target disk to the IO, including: using the target node to send a read request and/or write request to the arbitration area; obtaining the processing result of the arbitration area for the read request and/or write request ; Use the processing result of the arbitration area for the read request and/or write request as the arbitration area's response to the IO. It can be seen that the response of the arbitration area to the IO includes: the response of the read IO and/or the response of the write IO. If there is a problem with the response of the read IO or the response of the write IO, it is considered that the arbitration area has an error in the response to the IO, so it is determined that the response is an IO error message.

Since the arbitration area is a whole block of storage space, and there may be individual address faults in the entire block of storage space, in order to detect individual faulty addresses in the entire block of storage space, the arbitration area can be detected in subregions. In one embodiment, using the target node to detect the response of the arbitration area in the target disk to the IO includes: using the target node to read the data stored in any continuous address in the arbitration area; if the read data fails, determine The response of the arbitration area to the IO is an IO error message. If no data can be read from the current continuous address, it indicates that the current continuous address is faulty, so it is determined that the arbitration area responds incorrectly to the IO.

Of course, because data reading errors are accidental, you can try to perform a repair operation when a certain continuous address cannot read data; after the repair fails, it is considered that the response of the arbitration area to IO is wrong; if the modification is successful, the arbitration area Other addresses in the zone continue to be detected. In one embodiment, before determining that the response of the arbitration area to the IO is an IO error message, it also includes: performing a repair operation on the current continuous address, and if the repair of the current continuous address fails, then performing a determination that the response of the arbitration area to the IO is an IO error report message steps. Wherein, the repair operation is performed on the current continuous address, including: writing the randomly generated data into the current continuous address; reading the randomly generated data from the current continuous address; if the read randomly generated data is consistent with the written randomly generated data, then It is determined that the repair of the current continuous address is successful; otherwise, it is determined that the repair of the current continuous address fails.

In one embodiment, if the read data is successful or the current continuous address is successfully repaired, when the tail address of the current continuous address is not the end address of the arbitration area, the target node is used to read the next continuous address adjacent to the current continuous address. The data stored in the address, and judge whether the data is successfully read, and further process according to the result of the success of the data read.

Of course, the disk in the storage system may also be offline due to failure or other reasons. Therefore, if the offline message of the target disk is obtained when reading data or the tail address of the current continuous address is the end address of the arbitration area, wait for the next detection time point. In order to traverse to the next disk when the next detection time point is reached. It can be seen that this embodiment can periodically traverse all the disks in the system, for example: after the current disk is detected, the next disk will be detected after 3 seconds.

Since the arbitration information recorded in the system arbitration disk is very important, after confirming that there is a problem with the arbitration area of the system arbitration disk, the system needs to be notified in time to replace the system arbitration disk. Therefore, in an implementation mode, if the response is an IO error message And if the target disk is the system arbitration disk, a fault prompt message of the system arbitration disk is generated.

In an implementation manner, after generating the failure prompt message of the system arbitration disk, the method further includes: collecting label information of each disk in the multi-controller storage system; and reselecting the system arbitration disk based on the label information of each disk. Wherein, re-selecting the system arbitration disk based on the label information of each disk includes: using disks without label information as candidate disks, and selecting the system arbitration disk among the candidate disks based on the arbitration disk selection strategy, so as to avoid the newly selected system arbitration disk There is a problem with the arbitration area of . Wherein, the arbitration disk selection strategy may be formulated according to existing related technologies.

The disks in the system can be SAS (serial attached scsi, scsi bus protocol serial standard) disks or NVMe (Non-Volatile Memory express, flash storage protocol) disks. When the disk can be a SAS disk, the target node uses the scsi bus command to detect the response of the arbitration area in the disk to IO; when the disk can be an NVMe disk, the target node uses the NVMe bus command to detect the response of the arbitration area in the disk to the IO.

S103. If the response is an IO error message and the target disk is not a system quorum disk, add flag information of a quorum area failure to the target disk.

It can be seen that in this embodiment, the health status of each disk is detected by traversing each disk in the multi-control storage system. If the target disk is currently traversed, the target node for detecting the target disk is determined based on the preset load balancing strategy, so that Make all the nodes in the system undertake the detection tasks of each disk in the system in a balanced manner, so that a certain node does not undertake more detection tasks, which affects the IO business on this node. When specifically detecting each disk, use the target node determined by the above steps to detect the response of the arbitration area in the target disk to IO; if the response is an IO error message and the target disk is not a system arbitration disk, add a flag for the arbitration area failure to the target disk Information, and then you can select the quorum disk for the system based on this tag information. Moreover, the present application detects each disk in the system, that is to say, each disk in the system has a probability of being selected as an arbitration disk, and the selection range is not limited to the RAID member disks in the system. Because the service load pressure of the non-RAID member disk in the storage system is generally small, it is more suitable to be selected as the arbitration disk. It can be seen that in this embodiment, all the nodes in the system can balance the detection tasks of the disks in the system, which can balance the disk detection tasks and the pressure of the IO business on the storage system, and the non-RAID member disks with smaller loads in the system may also be selected. As an arbitration disk, the selection strategy of the arbitration disk can be optimized.

In the following, the present application will be further introduced by taking the SAS disk and the scsi bus command as examples. Please refer to Figure 2 for the overall logic of the solution in this embodiment. As shown in Figure 2, this embodiment sets the disk inspection task and the timer for executing the inspection task, wherein the execution thread of the inspection task is scrub_scan fiber, and the timer Setting: The interval between detection tasks of the same node for different disks is 3 seconds; the interval of detection tasks for different disks of different nodes is also 3 seconds.

Specifically, according to the setting of the timer, traverse all the managed disks in the storage system according to the disk number, remove a disk every 3s, and start the inspection of the arbitration area of the disk, and the inspection execution thread is scrub_scan fiber. If the disk number exists, the inspection time is up, and there is no inspection task being executed on the node used to detect the current disk, then the IO will be issued to the arbitration area of the current disk, and the issued IO will enter the queue and wait for the system scheduling. If the disk number does not exist, or the polling time is up but the determined node is not used to detect the current disk, then the next disk is detected.

Among them, in order to balance the IO load pressure of all nodes in the system, the following strategy is designed to select detection nodes for each disk. Assume that in a dual-control system (there are two nodes in the cluster), all managed disks are visible to the dual-control nodes, including D0 and D1, and the disk numbers driveD of all managed disks increase sequentially from D0. Node D0 executes the disk whose drive D is an even number, and node D1 executes the disk whose drive D is an odd number. In this way, the detection tasks of each disk are shared by the two nodes D0 and D1 in a balanced manner, so as to avoid affecting the detection of each disk when the node detects each disk. IO business. Of course, when only one node in the cluster is working, all disk inspection tasks are performed on this node. Therefore, for each node, it can be judged whether the current node should execute the inspection task of the current disk, if so, enter the next step, otherwise, this execution ends, wait for 3s and then operate on the next disk.

Since the disk is set as a SAS disk in this embodiment, the scsi verify command can be used to detect whether the target address of the issued IO is readable. The length of the data read by each issued IO is 512 bytes, and the arbitration area of the disk is 512M. Specifically, it is possible to set the last->lba (tail address) of the arbitration area of the disk, the length of data read by this IO, and the address next_lba of the next IO read. The issued IO in the queue is processed by the thread scrub_submit fiber in the node to determine whether the IO can successfully read the data. Among them, please refer to Figure 3 for the process of scrub_submit fiber processing IO. As shown in Figure 3, the thread scrub_submit fiber takes a verify IO from the queue, submits the verify IO to the specified disk, processes the IO on the disk and returns the result (that is, the verify IO result) , the result is dispatched back to the scrub_scan fiber asynchronously again, and the scrub_scan fiber confirms the verify IO result. When the returned result is success, it means that the target address of the disk to which the IO is currently delivered is in good condition, then judge whether the inspection of the disk arbitration area is completed according to the size relationship between next_lba and last->lba. If the current read completion address is equal to last->lba, it is considered that the inspection of the disk arbitration area is over; if the current read completion address is not equal to last->lba, recalculate next->lba=current read completion address+length, and execute again IO distribution process. When the returned result is offline, it means that the disk is offline and inspection is no longer needed, and the inspection task of this disk will stop immediately. When the returned result is other errors, it means that the target address of the currently issued IO is suspected of being a bad block. If the disk is the arbitration disk of the storage system, immediately notify the cluster to replace the arbitration disk and end the inspection task of the disk; if not system's arbitration disk, submit the write verify command to try to restore it.

Among them, use the write verify command to write binary data to the suspected bad block, and compare whether the read and written data are consistent, so as to try to repair. Please refer to Figure 4 for the repair process. As shown in Figure 4, after the processing result of the write verify command is obtained, it is determined whether the repair is successful based on the result. When the processing result of the write verify command is success, the bad block has been repaired successfully, and the verify IO request for the next block address will continue to be submitted. When the processing result of the write verify command is offline, it means that the disk is offline and inspection is no longer required, and the inspection task stops immediately. When the processing result of the write verify command is other errors, the bad block repair fails, the disk is marked as WRITE VERIFY ERROR (write proof error), and the cluster is notified at the same time, so that the arbitration disk selection mechanism of the storage system can use this result as the selection weight.

It can be seen that, according to the scsi verify command and the write verify command, this embodiment realizes the bad block detection in the arbitration area of all managed disks in the storage system, can find the bad block in the disk arbitration area in time, ensures the reliability of the arbitration disk data, and can Provide reliable reference factors for the arbitration selection mechanism of the storage system. Among them, this embodiment is aimed at the arbitration area of each disk, and the verify command is issued in units of address blocks to detect whether there is a bad block, and the bad block is tried to be repaired by issuing the write verify command, and a certain bad block can be detected immediately. The detection of the current disk is stopped, the data volume of each IO is small and the detection of the entire arbitration area of the disk can be avoided, and the detection efficiency is high.

The following is an introduction to a device for detecting an arbitration area of a disk provided by an embodiment of the present application. The device for detecting an arbitration area of a disk described below may be referred to with the method for detecting an arbitration area of a disk described above.

Referring to Fig. 5, the embodiment of the present application discloses a disk arbitration area detection device, including:

The traversal module 501 is configured to traverse each disk in the multi-control storage system, and if the target disk is currently traversed, then determine the target node for detecting the target disk based on the preset load balancing strategy; wherein, the target node is a multi-control storage system any node of

A detection module 502, configured to use the target node to detect the response of the arbitration area in the target disk to the IO;

The marking module 503 is configured to add the marking information of the arbitration area failure to the target disk if the response is an IO error message and the target disk is not a system arbitration disk.

In one embodiment, the traversal module is specifically used for:

The corresponding relationship between each node in the multi-control storage system and the disk to be detected is obtained from the preset load balancing strategy; and the target node for detecting the target disk is determined according to the corresponding relationship.

In one embodiment, the process of constructing the corresponding relationship includes:

All the disks in the multi-controller storage system are evenly allocated to each node in the multi-controller storage system to obtain the allocation result; and a corresponding relationship is established according to the allocation result.

In one embodiment, the detection module includes:

The read IO detection unit is used to use the target node to read the data stored in any continuous address in the arbitration area; if the read data fails, it is determined that the response of the arbitration area to the IO is an IO error message.

In one embodiment, the detection module also includes:

The repair unit is used to perform a repair operation on the current continuous address before determining that the response of the arbitration area to the IO is an IO error message, and if the repair of the current continuous address fails, perform the step of determining that the response of the arbitration area to the IO is an IO error message.

In one embodiment, the repair unit is specifically used for:

Write the randomly generated data into the current continuous address; read the randomly generated data from the current continuous address; if the read randomly generated data is consistent with the written randomly generated data, it is determined that the current continuous address is repaired successfully; otherwise, it is determined that the current continuous address Address repair failed.

In one embodiment, the detection module also includes:

The loop unit is used to read data in the next continuous address adjacent to the current continuous address by using the target node when the end address of the current continuous address is not the end address of the arbitration area if the data is successfully read or the current continuous address is repaired successfully. Stored data, and judge whether the data is read successfully.

In one embodiment, it also includes:

The timing module is used to wait for the next detection time point if the offline message of the target disk is obtained when reading data or the tail address of the current continuous address is the end address of the arbitration area, so that when the next detection time point is reached, traverse to next disk.

In one embodiment, it also includes:

The prompt module is configured to generate a fault prompt message of the system arbitration disk if the response is an IO error message and the target disk is the system arbitration disk.

In one embodiment, it also includes:

The arbitration disk replacement module is used to collect the label information of each disk in the multi-controller storage system after generating the failure prompt message of the system arbitration disk; and reselect the system arbitration disk based on the label information of each disk.

In an implementation manner, the arbitration disk replacement module is specifically used for:

The disks without tag information are used as candidate disks, and the system arbitration disk is selected among the candidate disks based on the arbitration disk selection policy.

In one embodiment, the detection module is specifically used for:

Use the target node to issue read requests and/or write requests to the arbitration area;

Obtain the processing result of the arbitration area for the read request and/or write request;

The processing result of the arbitration area for the read request and/or the write request is used as the response of the arbitration area for the IO.

For the more specific working process of each module and unit in this embodiment, reference may be made to the corresponding content disclosed in the foregoing embodiments, and details are not repeated here.

It can be seen that this embodiment provides a disk arbitration area detection device, which can balance the disk detection task and the pressure of the IO service on the storage system, and optimize the selection strategy of the arbitration disk.

An electronic device provided by an embodiment of the present application is introduced below, and the electronic device described below and the method and device for detecting an arbitration area of a disk described above may refer to each other.

Referring to Figure 6, the embodiment of the present application discloses an electronic device, including:

Memory 601, used to store computer programs;

The processor 602 is configured to execute the computer program, so as to implement the method disclosed in any of the foregoing embodiments.

In this embodiment, when the computer program stored in the memory is executed by the processor, the following steps can be implemented: traverse each disk in the multi-control storage system, and if the target disk is currently traversed, determine the The target node of the target disk; wherein, the target node is any node in the multi-control storage system; utilize the target node to detect the response of the arbitration area in the target disk to IO; if the response is an IO error message and the target disk is not a system arbitration disk, Then add the flag information of the quorum area failure to the target disk.

In this embodiment, when the computer program stored in the memory is executed by the processor, the following steps can be implemented: Obtain the corresponding relationship between each node in the multi-control storage system and the disk to be detected from the preset load balancing strategy; The correspondence determines the target node for detecting the target disk.

In this embodiment, when the computer program stored in the memory is executed by the processor, the following steps can be implemented: all the disks in the multi-control storage system are evenly distributed to each node in the multi-control storage system, and the distribution result is obtained; Correspondence.

In this embodiment, when the computer program stored in the memory is executed by the processor, the following steps can be implemented: use the target node to read the data stored in any continuous address in the arbitration area; if the read data fails, determine the arbitration area The response to IO is an IO error message.

In this embodiment, when the computer program stored in the memory is executed by the processor, the following steps can be implemented: perform a repair operation on the current continuous address, and if the repair of the current continuous address fails, then execute and determine that the response of the arbitration area to the IO is an IO error message A step of.

In this embodiment, when the computer program stored in the memory is executed by the processor, the following steps can be implemented: writing the randomly generated data into the current continuous address; reading the randomly generated data from the current continuous address; if the read randomly generated data If it is consistent with the written randomly generated data, it is determined that the repair of the current continuous address is successful; otherwise, it is determined that the repair of the current continuous address fails.

In this embodiment, when the computer program stored in the memory is executed by the processor, the following steps can be implemented: if the data is successfully read or the current continuous address is successfully repaired, when the tail address of the current continuous address is not the end address of the arbitration area, The target node is used to read the data stored in the next continuous address adjacent to the current continuous address, and judge whether the data is successfully read.

In this embodiment, when the computer program stored in the memory is executed by the processor, the following steps can be implemented: if the offline message of the target disk is obtained when reading data or the tail address of the current continuous address is the end address of the arbitration area, then wait The next detection time point, so as to traverse to the next disk when the next detection time point is reached.

In this embodiment, when the computer program stored in the memory is executed by the processor, the following steps can be implemented: if the response is an IO error message and the target disk is the system arbitration disk, then generate a system arbitration disk failure prompt message.

In this embodiment, when the computer program stored in the memory is executed by the processor, the following steps may be implemented: collecting label information of each disk in the multi-control storage system; and reselecting the system arbitration disk based on the label information of each disk.

In this embodiment, when the computer program stored in the memory is executed by the processor, the following steps can be implemented: using disks without tag information as candidate disks, and selecting the system arbitration disk among the candidate disks based on the arbitration disk selection strategy.

In this embodiment, when the computer program stored in the memory is executed by the processor, the following steps can be implemented: use the target node to send a read request and/or write request to the arbitration area; obtain the arbitration area's response to the read request and/or write request Processing result: the processing result of the arbitration area for the read request and/or write request is used as the arbitration area's response to the IO.

Further, the embodiment of the present application also provides a server as the above-mentioned electronic device. The server may specifically include: at least one processor, at least one memory, a power supply, a communication interface, an input and output interface, and a communication bus. Wherein, the memory is used to store a computer program, and the computer program is loaded and executed by the processor, so as to implement relevant steps in the disk arbitration area detection method disclosed in any of the foregoing embodiments.

In this embodiment, the power supply is used to provide working voltage for each hardware device on the server; the communication interface can create a data transmission channel between the server and external devices, and the communication protocol it follows is applicable to the technical solution of this application Any communication protocol is not specifically limited here; the input/output interface is used to obtain external input data or output data to the external, and its specific interface type can be selected according to specific application needs, and is not specifically limited here.

In addition, memory, as a resource storage carrier, can be read-only memory, random access memory, magnetic disk or optical disk, etc. The resources stored on it include operating system, computer program and data, etc., and the storage method can be temporary storage or permanent storage.

Wherein, the operating system is used to manage and control various hardware devices and computer programs on the server, so as to realize the calculation and processing of the data in the memory by the processor, which may be Windows Server, Netware, Unix, Linux, etc. In addition to the computer program that can be used to complete the method for detecting the disk arbitration area disclosed in any of the foregoing embodiments, the computer program may further include a computer program that can be used to complete other specific tasks. In addition to data such as the virtual machine, the data may also include data such as developer information of the virtual machine.

Further, the embodiment of the present application also provides a terminal as the above-mentioned electronic device. The terminal specifically may include, but is not limited to, a smart phone, a tablet computer, a notebook computer or a desktop computer, and the like.

Generally, the terminal in this embodiment includes: a processor and a memory.

Wherein, the processor may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The processor can be realized by at least one hardware form of DSP (Digital Signal Processing, digital signal processing), FPGA (Field-Programmable Gate Array, field programmable gate array), PLA (Programmable Logic Array, programmable logic array) . The processor can also include a main processor and a coprocessor, the main processor is a processor for processing data in the wake-up state, also called a CPU (Central Processing Unit, central processing unit); Low-power processor for processing data in standby state. In some embodiments, the processor may be integrated with a GPU (Graphics Processing Unit, image processor), and the GPU is used for rendering and drawing content that needs to be displayed on the display screen. In some embodiments, the processor may further include an AI (Artificial Intelligence, artificial intelligence) processor, where the AI processor is configured to process computing operations related to machine learning.

The memory may include one or more computer-readable storage media, which may be non-transitory. Memory may also include high-speed random access memory, and non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In this embodiment, the memory is at least used to store the following computer program, wherein, after the computer program is loaded and executed by the processor, it can implement the relevant steps in the disk arbitration area detection method performed by the terminal side disclosed in any of the foregoing embodiments . In addition, the resources stored in the memory may also include an operating system and data, etc., and the storage method may be temporary storage or permanent storage. Wherein, the operating system may include Windows, Unix, Linux and so on. Data may include, but is not limited to, application update information.

In some embodiments, the terminal may further include a display screen, an input/output interface, a communication interface, a sensor, a power supply, and a communication bus.

A readable storage medium provided by an embodiment of the present application is introduced below. The readable storage medium described below and the method, device, and device for detecting an arbitration area of a disk described above may refer to each other.

A readable storage medium is used for saving a computer program, wherein when the computer program is executed by a processor, the disk arbitration area detection method disclosed in the foregoing embodiments is implemented.

In this embodiment, when the computer program stored in the readable storage medium is executed by the processor, the following steps can be implemented: traversing each disk in the multi-control storage system, if the target disk is currently traversed, then determine based on the preset load balancing strategy The target node used to detect the target disk; where the target node is any node in the multi-control storage system; use the target node to detect the response of the arbitration area in the target disk to IO; if the response is an IO error message and the target disk is not a system If the quorum disk is used, add the flag information of the quorum area failure to the target disk.

In this embodiment, when the computer program stored in the readable storage medium is executed by the processor, the following steps can be implemented: Obtain the correspondence between each node in the multi-control storage system and the disk to be detected from the preset load balancing strategy relationship; determine the target node for detecting the target disk according to the corresponding relationship.

In this embodiment, when the computer program stored in the readable storage medium is executed by the processor, the following steps can be implemented: all the disks in the multi-control storage system are evenly allocated to each node in the multi-control storage system, and the allocation results are obtained; according to The allocation results establish a corresponding relationship.

In this embodiment, when the computer program stored in the readable storage medium is executed by the processor, the following steps can be implemented: use the target node to read the data stored in any continuous address in the arbitration area; if the reading of the data fails, then It is determined that the response of the arbitration area to the IO is an IO error message.

In this embodiment, when the computer program stored in the readable storage medium is executed by the processor, the following steps can be implemented: perform a repair operation on the current continuous address, and if the repair of the current continuous address fails, then execute and determine that the response of the arbitration area to the IO is Steps for IO error messages.

In this embodiment, when the computer program stored in the readable storage medium is executed by the processor, the following steps can be implemented: writing the randomly generated data into the current continuous address; reading the randomly generated data from the current continuous address; if the read If the randomly generated data is consistent with the written randomly generated data, it is determined that the repair of the current continuous address is successful; otherwise, it is determined that the repair of the current continuous address fails.

In this embodiment, when the computer program stored in the readable storage medium is executed by the processor, the following steps can be implemented: if the data is successfully read or the current continuous address is successfully repaired, the end address of the current continuous address is not the end of the arbitration area address, use the target node to read the data stored in the next continuous address adjacent to the current continuous address, and judge whether the data is successfully read.

In this embodiment, when the computer program stored in the readable storage medium is executed by the processor, the following steps can be implemented: if the offline message of the target disk is obtained when reading data or the tail address of the current continuous address is the end address of the arbitration area , then wait for the next detection time point, so as to traverse to the next disk when the next detection time point is reached.

In this embodiment, when the computer program stored in the readable storage medium is executed by the processor, the following steps can be implemented: if the response is an IO error message and the target disk is the system arbitration disk, generate a system arbitration disk failure prompt message.

In this embodiment, when the computer program stored in the readable storage medium is executed by the processor, the following steps can be implemented: collecting label information of each disk in the multi-control storage system; reselecting the system arbitration disk based on the label information of each disk.

In this embodiment, when the computer program stored in the readable storage medium is executed by the processor, the following steps can be implemented: use a disk without tag information as a candidate disk, and select the system arbitration disk among the candidate disks based on the arbitration disk selection strategy .

In this embodiment, when the computer program stored in the readable storage medium is executed by the processor, the following steps can be implemented: use the target node to send a read request and/or write request to the arbitration area; obtain the arbitration area for the read request and/or The processing result of the write request; the processing result of the arbitration area for the read request and/or the write request is used as the response of the arbitration area to the IO.

"First", "second", "third", "fourth" and the like referred to in the present application, if any, are used to distinguish similar objects and not necessarily to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, e.g. a process, method or apparatus comprising a series of steps or elements is not necessarily limited to those steps or elements explicitly listed , but may include other steps or elements not explicitly listed or inherent to the process, method or apparatus.

It should be noted that the descriptions in this application involving "first", "second" and so on are for descriptive purposes only, and should not be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features . Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , nor within the scope of protection required by the present application.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same or similar parts of each embodiment can be referred to each other.

The steps of the methods or algorithms described in connection with the embodiments disclosed herein may be directly implemented by hardware, software modules executed by a processor, or a combination of both. Software modules can be placed in random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other Any other known readable storage medium.

In this paper, specific examples are used to illustrate the principles and implementation methods of the application. The descriptions of the above embodiments are only used to help understand the method and core idea of the application; meanwhile, for those of ordinary skill in the art, according to the application There will be changes in the specific implementation and scope of application. In summary, the content of this specification should not be construed as limiting the application.

Claims (10)

1. A disk arbitration area detection method, characterized in that, comprising: Traversing each disk in the multi-control storage system, if currently traversing to the target disk, then determine a target node for detecting the target disk based on a preset load balancing strategy; wherein, the target node is the target node in the multi-control storage system any node of Using the target node to detect the response of the arbitration area in the target disk to the IO; If the response is an IO error message and the target disk is not a system arbitration disk, then add the flag information of the arbitration area failure to the target disk; Wherein, using the target node to detect the response of the arbitration area in the target disk to the IO includes: using the target node to read data stored in any segment of consecutive addresses in the arbitration area; If the reading of data fails, it is determined that the response of the arbitration area to the IO is the IO error message; Among them, also include: Collecting the tag information of each disk in the multi-control storage system; reselecting the system arbitration disk based on the tag information of each disk; Wherein, the reselecting the system arbitration disk based on the tag information of each disk includes: Taking a disk without the tag information as a candidate disk, and selecting the system arbitration disk among the candidate disks; Wherein, the determining the target node for detecting the target disk based on the preset load balancing strategy includes: The corresponding relationship between each node in the multi-control storage system and the disk to be detected is obtained from the preset load balancing strategy; the construction process of the corresponding relationship includes: all the nodes in the multi-control storage system The disks are evenly allocated to each node in the multi-control storage system, and an allocation result is obtained; the corresponding relationship is established according to the allocation result; A target node for detecting the target disk is determined according to the corresponding relationship. 2. The method according to claim 1, wherein before the determination that the arbitration area responds to the IO is the IO error message, further comprising: Perform a repair operation on the current continuous address, and if the repair of the current continuous address fails, perform the step of determining that the response of the arbitration area to the IO is the IO error message. 3. The method according to claim 2, wherein the performing the repair operation on the current continuous address comprises: Write randomly generated data into the current continuous address; reading the randomly generated data from the current continuous address; If the read randomly generated data is consistent with the written randomly generated data, it is determined that the repair of the current continuous address is successful; otherwise, it is determined that the repair of the current continuous address fails. 4. The method according to claim 2, further comprising: If the read data is successful or the current continuous address is successfully repaired, when the tail address of the current continuous address is not the end address of the arbitration area, the target node is used to read the data stored in the next continuous address adjacent to the current continuous address. , and judge whether the data is read successfully. 5. The method according to claim 4, further comprising: If the offline message of the target disk is obtained when reading data or the tail address of the current continuous address is the end address of the arbitration area, then wait for the next detection time point, so that when the next detection time point is reached, traverse to the next a disk. 6. The method according to any one of claims 1 to 5, further comprising: If the response is the IO error message and the target disk is the system arbitration disk, generate a failure prompt message of the system arbitration disk. 7. The method according to claim 1, wherein the detecting the response of the arbitration area in the target disk to the IO by using the target node comprises: using the target node to issue a read request and/or write request to the arbitration area; Obtain a processing result of the arbitration area for the read request and/or the write request; Taking the processing result of the arbitration area for the read request and/or the write request as the arbitration area's response to the IO. 8. A disk arbitration area detection device, characterized in that it comprises: The traversal module is used to traverse each disk in the multi-control storage system. If the target disk is currently traversed, the target node for detecting the target disk is determined based on a preset load balancing strategy; wherein the target node is the Any node in the multi-control storage system; A detection module, configured to use the target node to detect the response of the arbitration area in the target disk to IO; A marking module, configured to add the marking information of the arbitration area failure to the target disk if the response is an IO error message and the target disk is not a system arbitration disk; Wherein, the detection module is specifically used for: using the target node to read data stored in any segment of consecutive addresses in the arbitration area; If the reading of data fails, it is determined that the response of the arbitration area to the IO is the IO error message; Among them, also include: An arbitration disk replacement module, configured to collect the tag information of each disk in the multi-control storage system; reselect the system arbitration disk based on the tag information of each disk; Wherein, the arbitration disk replacement module is specifically used for: Taking a disk without the tag information as a candidate disk, and selecting the system arbitration disk among the candidate disks; Wherein, the traversal module is specifically used for: The corresponding relationship between each node in the multi-control storage system and the disk to be detected is obtained from the preset load balancing strategy; the construction process of the corresponding relationship includes: all the nodes in the multi-control storage system The disks are evenly allocated to each node in the multi-control storage system, and an allocation result is obtained; the corresponding relationship is established according to the allocation result; A target node for detecting the target disk is determined according to the corresponding relationship. 9. An electronic device, characterized in that it comprises: memory for storing computer programs; A processor, configured to execute the computer program to implement the method according to any one of claims 1-7. 10. A readable storage medium, characterized by being used to store a computer program, wherein the computer program implements the method according to any one of claims 1 to 7 when executed by a processor.

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