CN111176909A - Method and device for recovering use of disk and storage equipment - Google Patents
Method and device for recovering use of disk and storage equipment Download PDFInfo
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- CN111176909A CN111176909A CN201911384347.XA CN201911384347A CN111176909A CN 111176909 A CN111176909 A CN 111176909A CN 201911384347 A CN201911384347 A CN 201911384347A CN 111176909 A CN111176909 A CN 111176909A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/2053—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant
- G06F11/2056—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/32—Monitoring with visual or acoustical indication of the functioning of the machine
- G06F11/324—Display of status information
- G06F11/327—Alarm or error message display
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Abstract
The application discloses a method and a device for recovering use of a disk and storage equipment. The method disclosed by the application comprises the following steps: if the hardware link detects that the disk is inserted, the PSX sets the slot position of the disk insertion as a target value; if the EN detects the target value, the EN informs the VL to enable the VL to execute detection operation on the disk; and if the detection operation is successfully executed, the VL notifies the RD so that the RD adds the disk to the RD and modifies the use state of the disk into a hot standby state. The whole process does not need manual intervention, and the disk can be automatically recovered to be used after the disk is plugged by a user, so that the operation flow of recovering the disk to be used is simplified, the efficiency of recovering the disk to be used is improved, and the normal operation of the storage equipment is also ensured. Accordingly, the device for recovering the use of the disk and the storage device disclosed by the application also have the technical effects.
Description
Technical Field
The present application relates to the field of computer technologies, and in particular, to a method and an apparatus for recovering a disk from use, and a storage device.
Background
During normal operation of the storage device, the disk attached thereto is inevitably subject to such or other failures. Some faults can be eliminated after the user performs plug-in operation on the disk.
Currently, when a disk is plugged and unplugged, a user is required to perform some additional operations on the UI interface (e.g., remove the disk from the storage device, etc.). Therefore, in the prior art, when the use of the disk is recovered by plugging operation, the operation flow is complicated, the efficiency of recovering the use of the disk is low, and the normal operation of the storage device is influenced.
Therefore, how to improve the efficiency of disk recovery is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, an object of the present application is to provide a method and an apparatus for recovering and using a disk, and a storage device, so as to improve the efficiency of recovering and using the disk. The specific scheme is as follows:
in a first aspect, the present application provides a method for recovering a disk, including:
if the hardware link detects that a disk is inserted, the PSX sets a slot position where the disk is inserted as a target value;
if EN detects the target value, the EN informs VL so that the VL can execute detection operation on the disk;
and if the detection operation is successfully executed, the VL notifies an RD (remote device) so that the RD adds the disk to the RD and modifies the use state of the disk into a hot standby state.
Preferably, the method further comprises the following steps:
if the disk fails, the RD sets the disk as a fail disk, and moves out of the RD;
and if the EN detects the fail disk, closing a port of the fail disk, and reporting alarm information of disk faults so that a user can conveniently plug and unplug the disk.
Preferably, before the EN notifies VL, the method further includes:
the EN clears the alarm information;
correspondingly, before the VL performs the detection operation on the disk, the method further includes:
clearing the alarm information by the VL;
correspondingly, before the RD adds the disk to the RD, the method further includes:
and clearing the alarm information by the RD.
Preferably, the VL performs a detection operation on the disk, including:
the VL detects a port and login information of the disk, and if the port and the login information are detected to be normal within a preset first time period, the detection operation is determined to be successfully executed; otherwise, determining that the detection operation fails to be executed.
Preferably, the method further comprises the following steps:
and if the execution of the detection operation fails, reporting alarm information of recovery failure.
Preferably, before the EN clears the alarm information, the EN further includes:
the EN modifies the target value.
Preferably, after the modifying the use state of the disk to the hot standby state, the method further includes:
the RD informs the EN so that the EN ends the resume flow.
Preferably, the method further comprises the following steps:
and if the recovery process is not completed within a preset second time period, the EN ends the recovery process.
In a second aspect, the present application provides an apparatus for recovering a disk, including:
the PSX is used for setting a slot position for inserting the disk as a target value when the hardware link detects the disk insertion;
EN for notifying VL when the target value is detected;
the VL is used for executing detection operation on the disk, and notifying the RD when the detection operation is successfully executed;
the RD is used for adding the disk to the RD and modifying the use state of the disk into a hot standby state.
In a third aspect, the present application provides a storage device comprising an apparatus as described above.
According to the scheme, the application provides a method for recovering the use of the disk, which comprises the following steps: if the hardware link detects that a disk is inserted, the PSX sets a slot position where the disk is inserted as a target value; if EN detects the target value, the EN informs VL so that the VL can execute detection operation on the disk; and if the detection operation is successfully executed, the VL notifies an RD (remote device) so that the RD adds the disk to the RD and modifies the use state of the disk into a hot standby state.
Therefore, after the hardware link detects the disk insertion, the PSX sets the slot position of the disk insertion as a target value; if the EN detects the target value, the EN informs the VL to enable the VL to execute detection operation on the disk; and if the detection operation is successfully executed, the VL notifies the RD so that the RD adds the disk to the RD and modifies the use state of the disk into a hot standby state. The whole process does not need manual intervention, and the disk can be automatically recovered to be used after the disk is plugged by a user, so that the operation flow of recovering the disk to be used is simplified, the efficiency of recovering the disk to be used is improved, and the normal operation of the storage equipment is also ensured.
Accordingly, the device for restoring the use of the disk and the storage device provided by the application also have the technical effects.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a flowchart of a first method for recovering a disk from use disclosed in the present application;
FIG. 2 is a flow chart of a second method for recovering the use of a disk disclosed in the present application;
FIG. 3 is a flowchart of a third method for recovering the use of a disk disclosed in the present application;
fig. 4 is a schematic diagram of an apparatus for recovering a disk according to the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Currently, when a disk is plugged and unplugged, a user is required to perform some additional operations on the UI interface (e.g., remove the disk from the storage device, etc.). Therefore, in the prior art, when the use of the disk is recovered by plugging operation, the operation flow is complicated, the efficiency of recovering the use of the disk is low, and the normal operation of the storage device is influenced. Therefore, the method and the device for recovering the use of the disk are provided, the operation flow of recovering the use of the disk can be simplified, the efficiency of recovering the use of the disk is improved, and the normal operation of the storage device is also guaranteed.
The embodiment is applied to a Storage device, wherein a PSX (Switchtec PCIe Storage switch product) is a programmable Storage switch chip in the Storage device. The EN (Enclosure management) is a chassis management module in the storage device. The VL (VL-Volume Layer) is a back-end module in the storage device that discovers and manages storage. RD (Redundant Arrays of Independent Drives) is a disk array in a storage device.
Referring to fig. 1, an embodiment of the present application discloses a first method for recovering a disk, including:
s101, if the hardware link detects the disk insertion, the PSX sets the slot position of the disk insertion as a target value.
And the target value indicates that the disk inserted in the current slot position is pulled out. The magnetic disk in this application is a hard disk.
S102, if the EN detects the target value, the EN notifies VL so that VL can execute detection operation on the disk.
In one embodiment, the VL performs detection operations on the disk, including: the method comprises the steps that a VL detects a port and login information of a disk, and if the port and the login information are detected to be normal within a preset first time period, it is determined that detection operation is successfully executed; otherwise, determining that the detection operation fails to execute.
The time of the detection operation has a certain execution time, and if the execution time is overtime, the detection operation is considered to be failed to execute. At this time, it may be that the failure of the current disk cannot be eliminated in a plug-in and pull-out manner, so that the warning information of the recovery failure is reported. That is, if the execution of the detection operation fails, the alarm information of the recovery failure is reported.
S103, if the detection operation is successfully executed, the VL notifies the RD so that the RD adds the disk to the RD, and the use state of the disk is modified into a hot standby state.
In a specific embodiment, after modifying the use state of the disk to the hot standby state, the method further includes: RD informs EN so that EN ends the resume flow. And if the recovery process is not completed within the preset second time period, the EN ends the recovery process. If the execution of the recovery process (the method provided in this embodiment) is overtime, the EN ends the recovery process, possibly because the current failure of the disk cannot be eliminated in a plug-pull manner. The preset second time period is greater than the preset first time period. Wherein the hot standby state indicates that the current disk is available.
Therefore, in the embodiment of the application, after the hardware link detects the disk insertion, the PSX sets the slot position of the disk insertion as the target value; if the EN detects the target value, the EN informs the VL to enable the VL to execute detection operation on the disk; and if the detection operation is successfully executed, the VL notifies the RD so that the RD adds the disk to the RD and modifies the use state of the disk into a hot standby state. The whole process does not need manual intervention, and the disk can be automatically recovered to be used after the disk is plugged by a user, so that the operation flow of recovering the disk to be used is simplified, the efficiency of recovering the disk to be used is improved, and the normal operation of the storage equipment is also ensured.
Referring to fig. 2, an embodiment of the present application discloses a second method for recovering a disk, including:
s201, if the disk fails, the RD sets the disk as a fail disk, and moves out of the RD.
S202, if the EN detects the fail disk, closing a port of the fail disk, and reporting alarm information of disk faults so that a user can conveniently plug and unplug the disk.
S203, if the hardware link detects the disk insertion, the PSX sets the slot position of the disk insertion as a target value.
And S204, if the EN detects the target value, the EN clears the alarm information, the EN informs the VL so that the VL clears the alarm information, and the VL performs detection operation on the disk.
S205, if the detection operation is successfully executed, the VL notifies the RD so that the RD clears the alarm information, the RD adds the disk to the RD, and the use state of the disk is modified into the hot standby state.
It should be noted that when a disk fails, EN, VL, and RD all alarm the disk, and therefore in the recovery process, EN, VL, and RD all clear alarm information.
Before the EN clears the alarm information, the EN modifies the target value to prepare and mark the disc for use.
In a specific embodiment, after modifying the use state of the disk to the hot standby state, the method further includes: RD informs EN so that EN ends the resume flow. The EN finishes the recovery process, which comprises the following steps: the EN modifies the state of the recovery flow to TRUE and ends the recovery flow. And if the recovery process is not completed within the preset second time period, the EN modifies the state of the recovery process to FALSE and ends the recovery process. TRUE indicates successful recovery of disk usage and FALSE indicates unrecovered disk usage.
The usage state of the disk may be expressed by boolean values.
It should be noted that other implementation steps in this embodiment are the same as or similar to those in the above embodiment, and therefore, the description of this embodiment is omitted here.
As can be seen from the above, in this embodiment, after the hardware link detects the disk insertion, the PSX sets the slot into which the disk is inserted as the target value; if the EN detects the target value, the EN informs the VL to enable the VL to execute detection operation on the disk; and if the detection operation is successfully executed, the VL notifies the RD so that the RD adds the disk to the RD and modifies the use state of the disk into a hot standby state. The whole process does not need manual intervention, and the disk can be automatically recovered to be used after the disk is plugged by a user, so that the operation flow of recovering the disk to be used is simplified, the efficiency of recovering the disk to be used is improved, and the normal operation of the storage equipment is also ensured.
Referring to fig. 3, an embodiment of the present application discloses a third method for recovering a disk, including:
(1) when EN detects a failed disk, RD sets the disk to fail and moves the disk out of the disk array.
(2) And when detecting the fail disc, the EN performs disc kicking operation, closes the port of the disc and reports alarm information.
(3) And the user finds the disc fault through the UI interface and performs plug-in operation on the disc.
(4) After the disk is re-inserted, the hardware link detects the insertion of the disk, and notifies the PSX, and the PSX sets the slot swap bit of the disk insertion to 1 (assuming that the target value is 1). Wherein the swap bit is a pulling and inserting flag bit of the disk, and when the swap bit is set to 1, the disk on the slot is pulled and inserted.
(5) The EN detects swap bits of all the slot positions in the storage device, if the detected swap bit of the slot position is 1, the disk of the slot position is considered to be plugged, the swap bit is set to be 0, and the disk is pulled back (namely, the use of the disk is recovered).
Specifically, the operation of pulling back the disc includes: and the EN clears the alarm information corresponding to the slot disk. EN informs VL to enable VL to clear the alarm of the disk, VL carries out detection operation on the disk, a timer is started at the moment, when the time specified by the timer is up, the detection operation is completed, the detection operation is successful, and VL sends a notification message to RD; otherwise, the detection operation fails. And if the detection operation fails, reporting an alarm of disk reuse failure. After the RD receives the notification message sent by the VL, the RD clears the alarm of the disk and modifies the use state of the disk into a hot standby state. The hot standby state can be expressed in terms of boolean values. After that, the RD sends a notification message to the EN to enable the EN to modify the status of the resume flow to TRUE and end the resume flow, so that the disc can be normally used. The state of the recovery flow may be represented by boolean values.
Therefore, in the embodiment, through the mutual matching of EN, VL and RD, the user only needs to perform simple plugging and unplugging operation, the fault disk can be added into the disk array again, and the user does not need to perform complex operation. Other unknown errors generated in the operation process are avoided, the user experience is improved, and the safety and the stability of storage are ensured. The EN, VL and RD modules respectively play their roles, so that the coupling degree of the system is reduced, and the expandability of the system is enhanced.
The following describes a device for recovering a disk according to an embodiment of the present application, and a device for recovering a disk described below and a method for recovering a disk described above may be referred to each other.
Referring to fig. 4, an embodiment of the present application discloses an apparatus for recovering a disk from use, including:
PSX, which is used for setting the slot position of disk insertion as a target value when the hardware link detects the disk insertion;
EN for notifying VL when the target value is detected;
the VL is used for executing detection operation on the disk, and notifying the RD when the detection operation is successfully executed;
and the RD is used for adding the disk to the RD and modifying the use state of the disk into a hot standby state.
In one embodiment, RD is further configured to: if the disk fails, setting the disk as a fail disk, and moving out the RD; accordingly, EN is also used to: and if the EN detects the fail disk, closing the port of the fail disk, and reporting alarm information of disk faults so that a user can conveniently plug and unplug the disk.
In one embodiment, EN is also used to: clearing alarm information by EN; accordingly, VL is also used to: clearing alarm information by VL; accordingly, RD is also used to: and clearing the alarm information by the RD.
In one embodiment, VL is specifically used to: detecting a port and login information of a disk, and if the port and the login information are detected to be normal within a preset first time period, determining that the detection operation is successfully executed; otherwise, determining that the detection operation fails to execute.
In one embodiment, EN is also used to: and if the execution of the detection operation fails, reporting alarm information of recovery failure.
In one embodiment, RD is further configured to: RD informs EN so that EN ends the resume flow.
In one embodiment, EN is also used to: and if the recovery process is not completed within the preset second time period, the EN ends the recovery process.
For more specific working processes of each module and unit in this embodiment, reference may be made to corresponding contents disclosed in the foregoing embodiments, and details are not described here again.
Therefore, the embodiment provides a device for recovering the use of a disk, and the device can automatically recover the use of the disk, thereby simplifying the operation flow of recovering the use of the disk, improving the efficiency of recovering the use of the disk, and ensuring the normal operation of the storage device.
In the following, a storage device provided by an embodiment of the present application is introduced, and a storage device described below and a method and an apparatus for resuming a disk described above may be referred to with each other.
A storage device comprising an apparatus as described in the above embodiments.
References in this application to "first," "second," "third," "fourth," etc., if any, are intended to distinguish between similar elements and not necessarily to describe a particular order or sequence. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, or apparatus.
It should be noted that the descriptions in this application referring to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of readable storage medium known in the art.
The principle and the implementation of the present application are explained herein by applying specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A method for resuming use of a disk, comprising:
if the hardware link detects that a disk is inserted, the PSX sets a slot position where the disk is inserted as a target value;
if EN detects the target value, the EN informs VL so that the VL can execute detection operation on the disk;
and if the detection operation is successfully executed, the VL notifies an RD (remote device) so that the RD adds the disk to the RD and modifies the use state of the disk into a hot standby state.
2. The method for recovering the use of the disk according to claim 1, further comprising:
if the disk fails, the RD sets the disk as a fail disk, and moves out of the RD;
and if the EN detects the fail disk, closing a port of the fail disk, and reporting alarm information of disk faults so that a user can conveniently plug and unplug the disk.
3. The method for resuming use of a disk according to claim 2, wherein before the EN notifies VL, the method further comprises:
the EN clears the alarm information;
correspondingly, before the VL performs the detection operation on the disk, the method further includes:
clearing the alarm information by the VL;
correspondingly, before the RD adds the disk to the RD, the method further includes:
and clearing the alarm information by the RD.
4. The method for resuming the use of the disk according to claim 2, wherein the VL performs a detection operation on the disk, including:
the VL detects a port and login information of the disk, and if the port and the login information are detected to be normal within a preset first time period, the detection operation is determined to be successfully executed; otherwise, determining that the detection operation fails to be executed.
5. The method for resuming the use of a disk according to claim 4, further comprising:
and if the execution of the detection operation fails, reporting alarm information of recovery failure.
6. The method for resuming use of a disk according to claim 3, wherein before the EN clears the alarm information, the method further comprises:
the EN modifies the target value.
7. The method for recovering the use of the magnetic disk according to any one of claims 1 to 6, wherein after the modifying the use state of the magnetic disk to the hot standby state, the method further comprises:
the RD informs the EN so that the EN ends the resume flow.
8. The method for resuming use of a disk according to claim 7, further comprising:
and if the recovery process is not completed within a preset second time period, the EN ends the recovery process.
9. An apparatus for restoring a disk, comprising:
the PSX is used for setting a slot position for inserting the disk as a target value when the hardware link detects the disk insertion;
EN for notifying VL when the target value is detected;
the VL is used for executing detection operation on the disk, and notifying the RD when the detection operation is successfully executed;
the RD is used for adding the disk to the RD and modifying the use state of the disk into a hot standby state.
10. A storage device comprising the apparatus of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911384347.XA CN111176909A (en) | 2019-12-28 | 2019-12-28 | Method and device for recovering use of disk and storage equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911384347.XA CN111176909A (en) | 2019-12-28 | 2019-12-28 | Method and device for recovering use of disk and storage equipment |
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| Publication Number | Publication Date |
|---|---|
| CN111176909A true CN111176909A (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911384347.XA Withdrawn CN111176909A (en) | 2019-12-28 | 2019-12-28 | Method and device for recovering use of disk and storage equipment |
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| CN (1) | CN111176909A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113593613A (en) * | 2021-07-28 | 2021-11-02 | 海信视像科技股份有限公司 | Automatic registration and de-registration method for recording disk |
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