CN113868009A - Automatic repairing method, equipment and storage medium of SAS expander - Google Patents
Automatic repairing method, equipment and storage medium of SAS expander Download PDFInfo
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- CN113868009A CN113868009A CN202111219909.2A CN202111219909A CN113868009A CN 113868009 A CN113868009 A CN 113868009A CN 202111219909 A CN202111219909 A CN 202111219909A CN 113868009 A CN113868009 A CN 113868009A
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000001934 delay Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 230000035876 healing Effects 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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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
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0706—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment
- G06F11/0745—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment in an input/output transactions management context
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/24—Resetting means
-
- 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
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0793—Remedial or corrective actions
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2205—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested
- G06F11/221—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested to test buses, lines or interfaces, e.g. stuck-at or open line faults
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2273—Test methods
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2284—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing by power-on test, e.g. power-on self test [POST]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0036—Small computer system interface [SCSI]
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Abstract
The invention relates to the technical field of computers, and discloses an automatic repairing method, equipment and a storage medium of a SAS expander. An automatic repair method, comprising: after detecting that the SAS expander is powered on, the complex programmable logic device CPLD detects whether the SAS expander enters a normal working state, and if not, sends a reset instruction to the SAS expander to control the SAS expander to reset automatically. The embodiment of the invention utilizes the CPLD to control the SAS expander to reset when detecting that the SAS expander is hung up, so that the SAS expander automatically restores to a normal working state, thereby ensuring that all hard disks under the system can be identified, ensuring the normal operation of services, not only enhancing the self-restoration performance of equipment, but also having quick restoration time, small influence on the services and low cost.
Description
Technical Field
The present invention relates to the field of computer technologies, and in particular, to an automatic repair method and device for a Serial Attached SCSI (Serial Attached SCSI) expander, and a storage medium.
Background
Currently, when processing data transmitted between a server and a hard disk, the storage system can be used for processing the corresponding data with high reliability and high speed. Because the storage system is externally provided with a pci (personal component interconnect express) interface; while the hard disk of the storage system is generally used by an SAS interface, there is a conversion from pcie to an SAS interface and an interface to each hard disk by an SAS expander.
With the rapid increase of the usage of servers, the requirement of users for storage space is also increased, and SAS (Serial Attached SCSI) expanders are used as embedded system chips to expand SAS/SATA (Serial ATA) interfaces, thereby constructing a larger disk array or storage system.
At present, when the problem of too large traffic volume after initialization or power-on occurs, the SAS expander often cannot normally work and is abnormally suspended, which may cause the hard disk under the system to be unidentified and affect the service operation.
Disclosure of Invention
The invention aims to provide an automatic repair method, equipment and a storage medium of an SAS expander, so as to overcome the defect that a hard disk cannot be identified due to abnormal hanging of the SAS expander in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
an automatic repair method of a SAS expander, comprising:
after detecting that the SAS expander is powered on, the complex programmable logic device CPLD detects whether the SAS expander enters a normal working state, and if not, sends a reset instruction to the SAS expander to control the SAS expander to reset automatically.
The method of claim 1, wherein the detecting whether the SAS expander enters a normal operating state comprises:
and the CPLD acquires a heartbeat signal of the SAS expander and judges whether the SAS expander enters a normal working state or not according to the heartbeat signal.
Optionally, the heartbeat signal is a square wave signal;
the determining whether the SAS expander enters a normal operating state according to the heartbeat signal includes:
detecting whether the heartbeat signal has edge change in each preset period, wherein the preset period is greater than the period of the square wave signal; if yes, determining that the SAS expander enters a normal working state; if not, determining that the SAS expander is hung up.
Optionally, when detecting that the SAS expander is powered on, the CPLD delays for a preset time period and then starts to detect whether the SAS expander enters a normal operating state.
An apparatus for implementing the method of automatic repair of a SAS expander as described in any of the above, comprising a SAS expander and a CPLD;
the CPLD is used for detecting whether the SAS expander enters a normal working state or not after the SAS expander is detected to be powered on, and if not, sending a reset instruction to the SAS expander;
and the SAS expander is used for executing the reset operation after receiving the reset instruction.
Optionally, the CPLD, in the aspect of detecting whether the SAS expander enters a normal operating state, is specifically configured to: and acquiring a heartbeat signal of the SAS expander, and judging whether the SAS expander enters a normal working state or not according to the heartbeat signal.
Optionally, the heartbeat signal is a square wave signal;
the CPLD, in the aspect of determining whether the SAS expander enters a normal operating state according to the heartbeat signal, is specifically configured to:
detecting whether the heartbeat signal has edge change in each preset period, wherein the preset period is greater than the period of the square wave signal; if yes, determining that the SAS expander enters a normal working state; if not, determining that the SAS expander is hung up.
Optionally, when detecting that the SAS expander is powered on, the CPLD delays for a preset time period and then starts to detect whether the SAS expander enters a normal operating state.
Optionally, the CPLD is further configured to record the number of resets of the SAS expander;
the equipment further comprises a Baseboard Management Controller (BMC) which is in communication connection with the CPLD, and the BMC is used for checking the reset times of the SAS expander.
A storage medium storing a plurality of instructions adapted to be loaded by a processor to perform the steps of the method for automatic healing of a SAS expander as recited in any of the above.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
the embodiment of the invention utilizes the CPLD to control the SAS expander to reset when detecting that the SAS expander is hung up, so that the SAS expander automatically restores to a normal working state, thereby ensuring that all hard disks under the system can be identified, ensuring the normal operation of services, not only enhancing the self-restoration performance of equipment, but also having quick restoration time, small influence on the services and low cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a flowchart of an automatic repair method for an SAS expander according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an apparatus for implementing an automatic repair method of an SAS expander according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the embodiments of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without any creative efforts shall fall within the protection scope of the embodiments of the present invention.
The terms "comprises" and "comprising," and any variations thereof, in the description and claims of embodiments of the present invention and the above-described drawings, are intended to cover non-exclusive inclusions, such that a process, method, system, article, 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, article, or apparatus.
In order to solve the problem that a hard disk cannot be identified due to power-on hang-up of an SAS expander, embodiments of the present invention provide an automatic repair method for an SAS expander and an apparatus for implementing the repair method, which can control the SAS expander to restart and reset when detecting that the SAS expander hangs up, so that the SAS expander automatically recovers to a normal operating state, thereby ensuring that all hard disks in a system can be effectively identified and ensuring normal operation of a service.
Referring to fig. 1, an embodiment of the present invention provides an automatic repair method for an SAS expander, including the steps of:
And 102, detecting whether the SAS expander enters a normal working state or not by the CPLD, if not, sending a reset instruction to the SAS expander, and if so, ending the process.
Under normal conditions, the SAS expander is supposed to be in a normal working state after power-on is completed, and due to large service pressure, the SAS expander is abnormal and hangs up. Based on the above, the embodiment of the invention detects whether the SAS expander is hung dead by the CPLD, and controls the SAS expander to automatically reset when the SAS expander is hung dead, thereby eliminating the adverse effect caused by the hanging dead of the SAS expander.
In step 101, the CPLD may identify whether power-up is complete based on the power-up signal of the SAS expander. Illustratively, the power-on signal defaults to high and low valid; when the power-on of the SAS expander is completed, the power-on signal changes from high to low, and the CPLD can judge that the power-on of the SAS expander is completed when detecting the falling edge.
In an optional implementation manner, the method for the CPLD to detect whether the SAS expander enters a normal operating state in step 102 includes: and the CPLD acquires the heartbeat signal output by the SAS expander and judges whether the SAS expander enters a normal working state or not according to the heartbeat signal.
The heartbeat signal output by the SAS expander may specifically be a square wave signal. Based on this, the method for judging whether the SAS expander enters the normal working state or not according to the heartbeat signal comprises the following steps:
detecting whether the heartbeat signal has edge change in each preset period, wherein the preset period is greater than the period of the square wave signal; if yes, determining that the SAS expander enters a normal working state; if not, the SAS expander is judged to be hung up. For example, when the period of the square wave signal is 2s, the preset period of the detection may be 4 s.
Of course, in other embodiments, other methods may be used to detect whether the SAS expander is in a normal operating state, and the detection method is not limited in the present invention.
Because a certain time is consumed for the SAS expander to enter a normal working state after being powered on, in order to ensure the accuracy of a detection result, in the embodiment of the present invention, when the CPLD detects that the SAS expander is powered on, the detection of whether the SAS expander enters the normal working state is started after a certain delay time is selected. For example, the preset time period may be 12 s.
It should be noted that, in the embodiment of the present invention, the CPLD only controls the SAS expander to perform soft reset, and does not perform power-up again, so that time consumed for repair can be effectively shortened, and efficiency can be improved.
In practice, the act of the CPLD controlling the reset of the SAS expander may be repeated multiple times until the SAS expander enters a normal operating state. If the SAS expander still cannot enter the normal working state after being repeated for many times, the SAS expander needs to be manually restarted. In the process, the reset times can be recorded by using the counter for subsequent checking.
Based on the same inventive concept, please refer to fig. 2, an embodiment of the present invention further provides an apparatus for implementing the automatic repair method of the SAS expander, including an SAS expander and a CPLD communicatively connected to each other.
The CPLD is configured to detect whether the SAS expander enters a normal operating state after detecting that the SAS expander is powered on, and if not, send a reset instruction (for example, a BPL _ PM8055_ MIPS _ RDY _ R signal shown in fig. 2) to the SAS expander;
and the SAS expander is used for executing the reset operation after receiving the reset instruction.
According to the equipment, the CPLD can control the SAS expander to reset when the SAS expander is hung up, so that all hard disks under the system can be effectively identified, and normal operation of services is ensured.
In fig. 2, the BPL _ PG _ PWR _ R _ N signal is a power-on signal of the SAS expander, the BPL _ PM8055_ MIPS _ RDY _ R signal is a heartbeat signal output by the SAS expander, and the RST _ EXP signal is a reset instruction.
Illustratively, if the BPL _ PG _ PWR _ R _ N signal is default to high and low valid; and when the CPLD detects that the BPL _ PG _ PWR _ R _ N signal has a falling edge from high to low, the SAS expander can be judged to be powered on completely.
The CPLD is specifically configured to, in detecting whether the SAS expander enters a normal operating state: and acquiring a BPL _ PM8055_ MIPS _ RDY _ R signal of the SAS expander, and judging whether the SAS expander enters a normal working state or not according to the signal.
When the BPL _ PM8055_ MIPS _ RDY _ R signal is a square wave signal, the CPLD is specifically configured to, in the aspect of determining whether the SAS expander enters a normal operating state according to the signal: detecting whether the heartbeat signal has edge change in each preset period, wherein the preset period is greater than the period of the square wave signal; if yes, determining that the SAS expander enters a normal working state; if not, the SAS expander is judged to be hung up.
In order to ensure the accuracy of the detection result, when the CPLD detects that the power-on of the SAS expander is completed, the CPLD preferably delays for a preset time period and then starts to detect whether the SAS expander enters a normal working state.
In addition, the CPLD can also be used for recording the reset times of the SAS expander; the equipment further comprises a BMC (baseboard management controller) in communication connection with the CPLD, wherein the BMC is used for checking the reset times of the SAS expander so as to facilitate management work of management personnel.
It will be understood by those skilled in the art that all or part of the steps of the method of the above embodiments may be performed by instructions or by instructions controlling associated hardware, and the instructions may be stored in a computer readable storage medium and loaded and executed by a processor.
To this end, an embodiment of the present invention further provides a storage medium, where a plurality of instructions are stored, where the instructions can be loaded by a processor to execute the steps in the method for automatically repairing a SAS expander provided in the embodiment of the present invention.
Wherein the storage medium may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An automatic repair method for a SAS expander, comprising:
after detecting that the SAS expander is powered on, the complex programmable logic device CPLD detects whether the SAS expander enters a normal working state, and if not, sends a reset instruction to the SAS expander to control the SAS expander to reset automatically.
2. The method of claim 1, wherein the detecting whether the SAS expander enters a normal operating state comprises:
and the CPLD acquires a heartbeat signal of the SAS expander and judges whether the SAS expander enters a normal working state or not according to the heartbeat signal.
3. The method of automatic healing of a SAS expander according to claim 2, wherein said heartbeat signal is a square wave signal;
the determining whether the SAS expander enters a normal operating state according to the heartbeat signal includes:
detecting whether the heartbeat signal has edge change in each preset period, wherein the preset period is greater than the period of the square wave signal; if yes, determining that the SAS expander enters a normal working state; if not, determining that the SAS expander is hung up.
4. The automatic repairing method of the SAS expander according to any of claims 1 to 3, wherein the CPLD delays for a preset time period upon detecting that the power-on of the SAS expander is completed, and then starts to detect whether the SAS expander enters a normal operating state.
5. An apparatus for implementing the automatic repair method of the SAS expander of any of claims 1 to 4, comprising a SAS expander and a CPLD;
the CPLD is used for detecting whether the SAS expander enters a normal working state or not after the SAS expander is detected to be powered on, and if not, sending a reset instruction to the SAS expander;
and the SAS expander is used for executing the reset operation after receiving the reset instruction.
6. The device of claim 5, wherein the CPLD, in detecting whether the SAS expander enters a normal operating state, is specifically configured to: and acquiring a heartbeat signal of the SAS expander, and judging whether the SAS expander enters a normal working state or not according to the heartbeat signal.
7. The apparatus of claim 6, wherein the heartbeat signal is a square wave signal;
the CPLD, in the aspect of determining whether the SAS expander enters a normal operating state according to the heartbeat signal, is specifically configured to:
detecting whether the heartbeat signal has edge change in each preset period, wherein the preset period is greater than the period of the square wave signal; if yes, determining that the SAS expander enters a normal working state; if not, determining that the SAS expander is hung up.
8. The device according to any one of claims 5 to 7, wherein the CPLD, upon detecting that the SAS expander is powered on, delays for a preset time period before beginning to detect whether the SAS expander enters a normal operating state.
9. The device of any of claims 5-7, wherein said CPLD is further configured to record a number of resets of said SAS expander;
the equipment further comprises a Baseboard Management Controller (BMC) which is in communication connection with the CPLD, and the BMC is used for checking the reset times of the SAS expander.
10. A storage medium storing a plurality of instructions adapted to be loaded by a processor to perform the steps of the method for automatic healing of a SAS expander recited in any of claims 1 through 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111219909.2A CN113868009A (en) | 2021-10-20 | 2021-10-20 | Automatic repairing method, equipment and storage medium of SAS expander |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111219909.2A CN113868009A (en) | 2021-10-20 | 2021-10-20 | Automatic repairing method, equipment and storage medium of SAS expander |
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| CN106708646A (en) * | 2016-12-22 | 2017-05-24 | 郑州云海信息技术有限公司 | Hard disk abnormal condition automatic resetting method and device thereof |
| CN110580235A (en) * | 2018-06-08 | 2019-12-17 | 杭州宏杉科技股份有限公司 | SAS expander communication method and device |
| CN111124785A (en) * | 2019-12-22 | 2020-05-08 | 广东浪潮大数据研究有限公司 | Hard disk fault checking method, device, equipment and storage medium |
| CN111880992A (en) * | 2020-07-24 | 2020-11-03 | 北京浪潮数据技术有限公司 | Monitoring and maintaining method for controller state in storage device |
| CN112000535A (en) * | 2020-08-27 | 2020-11-27 | 山东超越数控电子股份有限公司 | SAS Expander card-based hard disk abnormity identification method and processing method |
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2021
- 2021-10-20 CN CN202111219909.2A patent/CN113868009A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104123206A (en) * | 2013-04-29 | 2014-10-29 | 鸿富锦精密工业（深圳）有限公司 | SAS expander and fault detection system thereof |
| CN104969204A (en) * | 2013-09-05 | 2015-10-07 | 株式会社日立制作所 | Storage system and storage control method |
| CN106708646A (en) * | 2016-12-22 | 2017-05-24 | 郑州云海信息技术有限公司 | Hard disk abnormal condition automatic resetting method and device thereof |
| CN110580235A (en) * | 2018-06-08 | 2019-12-17 | 杭州宏杉科技股份有限公司 | SAS expander communication method and device |
| CN111124785A (en) * | 2019-12-22 | 2020-05-08 | 广东浪潮大数据研究有限公司 | Hard disk fault checking method, device, equipment and storage medium |
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Application publication date: 20211231 |