CN107704209A - A kind of disk scanning method, system, equipment and computer-readable storage medium - Google Patents
A kind of disk scanning method, system, equipment and computer-readable storage medium Download PDFInfo
- Publication number
- CN107704209A CN107704209A CN201711013879.3A CN201711013879A CN107704209A CN 107704209 A CN107704209 A CN 107704209A CN 201711013879 A CN201711013879 A CN 201711013879A CN 107704209 A CN107704209 A CN 107704209A
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- Prior art keywords
- scsi device
- disk
- current failure
- scsi
- scanning
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/061—Improving I/O performance
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0604—Improving or facilitating administration, e.g. storage management
- G06F3/0607—Improving or facilitating administration, e.g. storage management by facilitating the process of upgrading existing storage systems, e.g. for improving compatibility between host and storage device
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0629—Configuration or reconfiguration of storage systems
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Debugging And Monitoring (AREA)
Abstract
The invention discloses a kind of disk scanning method, system, equipment and computer-readable storage medium, wherein this method includes：When new Disk Mapping to scsi device, it is necessary to when finding new disk, current failure scsi device is searched；Delete the scanning record of current failure scsi device；Current failure scsi device is rescaned, to find new disk.A kind of disk scanning method, system, equipment and computer-readable storage medium provided by the invention only rescan the current failure scsi device that may map new disk, the scsi device of original old disk of mapping will not be rescaned, without interrupting the IO between old disk and the scsi device for mapping the old disk, compared with prior art, disk scanning efficiency is improved to a certain extent.
Description
Technical field
The present invention relates to disk scanning technical field, more specifically to a kind of disk scanning method, system, equipment
And computer-readable storage medium.
Background technology
In linux system, disk is to be connected in a manner of being mapped to scsi device on main frame, it is sometimes desirable to new
The disk for increasing to linux system is scanned.
Existing disk scanning method is：Restart Linux server, reload iSCSI modules or reload HBA
Drive to call SCSI scanning functions, so as to scan to obtain comprising the newly-increased all disks for adding to linux system.
However, either restart Linux server, reload iSCSI modules still reload HBA driving, be both needed to
The IO of existing disk is first interrupted, and then make it that scan efficiency is low.
In summary, how improving the scan efficiency of disk scanning, to be that current those skilled in the art are urgently to be resolved hurrily ask
Topic.
The content of the invention
It is an object of the invention to provide a kind of disk scanning method, it can solve how to improve disk to a certain extent sweeps
The technical problem for the scan efficiency retouched.Present invention also offers a kind of disk scanning system, equipment and computer-readable storage medium.
To achieve these goals, the present invention provides following technical scheme：
A kind of disk scanning method, including：
When new Disk Mapping to scsi device, it is necessary to when finding the new disk, current failure scsi device is searched；
Delete the scanning record of the current failure scsi device；
The current failure scsi device is rescaned, to find the new disk.
Preferably, the lookup current failure scsi device, including：
Current failure scsi device is searched based on multipath instruments.
Preferably, the lookup current failure scsi device, including：
Search and determine that there is currently no IO and/or the scsi device without Disk Mapping is current failure scsi device.
Preferably, it is described to rescan the current failure scsi device, including：
The current failure scsi device is rescaned based on HBA drivings.
Present invention also offers a kind of disk scanning system, including：
Searching modul, for, it is necessary to when finding the new disk, searching current failure when new Disk Mapping to scsi device
Scsi device；
Removing module, for deleting the current failure scsi device；
Scan module, for rescaning the current failure scsi device, to find the new disk.
Preferably, the searching modul includes：
First searching unit, for searching current failure scsi device based on multipath instruments.
Preferably, the searching modul includes：
Second searching unit, it is for searching and determining to there is currently no IO and/or scsi device without Disk Mapping
Current failure scsi device.
Preferably, the scan module includes：
Scanning element, for rescaning the current failure scsi device based on HBA drivings.
Present invention also offers a kind of disk scanning equipment, including：
Memory, for storing computer program；
Processor, a kind of as above any step of disk scanning method is realized during for performing the computer program
Suddenly.
Present invention also offers a kind of computer-readable storage medium, computer journey is stored with the computer-readable storage medium
Sequence, when the computer program is executed by processor realize as above a kind of any disk scanning method the step of.
In a kind of disk scanning method provided by the invention, because new disk is mapped on current failure scsi device
, so first searching current failure scsi device；Then the scanning record of current failure scsi device is deleted, to rescan
Current failure scsi device；Current failure scsi device is finally rescaned, for scanning the disk of new mappings.By existing skill
The relation of the corresponding disk of a scsi device understands that a kind of disk scanning method provided by the invention is only swept again in art
The current failure scsi device of new disk may be mapped by retouching, and will not rescan the scsi device of original old disk of mapping, so as to
Old disk need not be interrupted and map the IO between the scsi device of the old disk, compared with prior art, carried to a certain extent
High disk scanning efficiency.In summary, a kind of disk scanning method provided by the invention solves how to improve disk scanning
Scan efficiency technical problem.A kind of disk scanning system, equipment and computer-readable storage medium provided by the invention also solve
Corresponding technical problem.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is a kind of flow chart of disk scanning method provided in an embodiment of the present invention；
Fig. 2 is the flow chart of another disk scanning method provided in an embodiment of the present invention；
Fig. 3 is the flow chart of another disk scanning method provided in an embodiment of the present invention；
Fig. 4 is the flow chart of another disk scanning method provided in an embodiment of the present invention；
Fig. 5 is a kind of structural representation of disk scanning system provided in an embodiment of the present invention；
Fig. 6 is a kind of structural representation of disk scanning equipment provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Referring to Fig. 1, Fig. 1 is a kind of flow chart of disk scanning method provided in an embodiment of the present invention.
A kind of disk scanning method provided in an embodiment of the present invention, may comprise steps of：
Step S101：When new Disk Mapping to scsi device, it is necessary to when finding new disk, search current failure SCSI and set
It is standby.
, can be with the application present invention when having new Disk Mapping to scsi device, it is necessary to when finding new disk in practical application
A kind of disk scanning method that embodiment provides.Failure scsi device mentioned here is that the SCSI that can map new disk is set
Standby, current failure scsi device is the set of current all failure scsi devices.It is corresponding by a scsi device in the prior art
The corresponding relation of one disk understands, the disk if mapping of scsi device is had been friends in the past, then this scsi device is not necessarily
Do not include the scsi device for having mapped disk of haveing been friends in the past in current failure scsi device, namely current failure scsi device.It is actual
In, current failure scsi device can be searched in all scsi devices in a manner of poll, naturally it is also possible to have it
He searches mode, for example is searched in batches with predetermined number, such as, can be each in the case where there is 100 scsi devices
Failure scsi device is searched in 10 scsi devices, amounts to and searches 10 times, finally set the failure SCSI found each time
It is standby to assemble current failure scsi device.
Step S102：Delete the scanning record of current failure scsi device.
Main frame due to installing linux system for convenience, will hereafter install linux system in firm operation
Main frame is referred to as main frame, single pass can be carried out to all scsi devices, and generation is corresponding with scanning on main frame
Record, such as by scanned scsi device added to itself create /sys catalogues under, so, if a SCSI is set
It is standby under/sys catalogues, then this scsi device is just scanned by main frame, at this moment just needs to delete under/sys catalogues
Current failure scsi device.In practical application, added to/sys catalogues under be probably scsi device identification information, such as should
Numbering of scsi device etc., accordingly, when deleting the scanning record of current failure scsi device, it can be deleted under/sys catalogues
Except the label of current failure SCSI identification information, such as deletion current failure scsi device.So deleting current failure
, can be only to be rescaned to current failure scsi device, without right when re-starting scan operation after scsi device
Those still exist in/sys catalogues under scsi device rescaned, still exist in/sys catalogues so as to not interfere with
Under scsi device original process, such as IO etc..
Step S103：Current failure scsi device is rescaned, to find new disk.
, can be to rescan current failure scsi device after the scanning record of current failure scsi device is deleted, this
Sample, if new Disk Mapping has been arrived on failure scsi device, during current failure scsi device is rescaned, Ke Yitong
When scan new disk, namely during current failure scsi device is rescaned, the disk of new mappings is together scanned
Out, that is, it is found that new disk.In practical application, after current failure scsi device is rescaned, it will be weighed in main frame
The scanning record of newly-generated current failure scsi device, represents that current failure scsi device has been scanned, and main frame can be with
To the corresponding process of new disk progress of mapping, such as IO processes.
In a kind of disk scanning method provided by the invention, because new disk is mapped on current failure scsi device
, so first searching current failure scsi device；Then the scanning record of current failure scsi device is deleted, to rescan
Current failure scsi device；Current failure scsi device is finally rescaned, for scanning the disk of new mappings.By existing skill
The relation of the corresponding disk of a scsi device understands that a kind of disk scanning method provided by the invention is only swept again in art
The current failure scsi device of new disk may be mapped by retouching, and will not rescan the scsi device of original old disk of mapping, so as to
Old disk need not be interrupted and map the IO between the scsi device of the old disk, compared with prior art, carried to a certain extent
High disk scanning efficiency.In summary, a kind of disk scanning method provided by the invention solves how to improve disk scanning
Scan efficiency technical problem.
Referring to Fig. 2, Fig. 2 is the flow chart of another disk scanning method provided in an embodiment of the present invention.
Another disk scanning method provided in an embodiment of the present invention, is specifically as follows：
Step S201：When new Disk Mapping to scsi device, it is necessary to when finding new disk, looked into based on multipath instruments
Look for current failure scsi device.
In practical application, current failure scsi device, multipath instruments can be searched by multipath instruments
Of the prior art related retouch is referred to the process for searching current failure scsi device in main frame by multipath instruments
State, repeat no more here.
Step S202：Delete the scanning record of current failure scsi device.
The associated description to step S102 is referred to step S202 associated description, is repeated no more here.
Step S203：Current failure scsi device is rescaned, to find new disk.
The associated description to step S103 is referred to step S203 associated description, is repeated no more here.
Referring to Fig. 3, Fig. 3 is the flow chart of another disk scanning method provided in an embodiment of the present invention.
Another disk scanning method provided in an embodiment of the present invention, is specifically as follows：
Step S301：When new Disk Mapping to scsi device, it is necessary to when finding new disk, search and determine there is currently no
IO and/or scsi device without Disk Mapping are current failure scsi device.
In practical application, the failure scsi device that can map new disk is divided into two classes：One kind is the SCSI in the absence of IO
Equipment, one kind are the scsi devices of no Disk Mapping.If it should be pointed out that a scsi device for being mapped with disk relieves
Mapping relations, then the scsi device falls within the scsi device of no Disk Mapping；In practical application, a Disk Mapping arrives
After scsi device, IO be present between the disk meeting and scsi device, if IO is not present in a scsi device, it is considered that should
Scsi device is failure scsi device.In practical application, it can individually search and determine that the scsi device that there is currently no IO is
Current failure scsi device, it can also individually search and determine to be current failure SCSI currently without the scsi device of Disk Mapping
Equipment, in order to improve the degree of accuracy for searching current failure scsi device, it can search and determine currently without IO and no disk
The scsi device of mapping is current failure scsi device.
Step S302：Delete the scanning record of current failure scsi device.
The associated description to step S102 is referred to step S302 associated description, is repeated no more here.
Step S303：Current failure scsi device is rescaned, to find new disk.
The associated description to step S103 is referred to step S303 associated description, is repeated no more here.
Referring to Fig. 4, Fig. 4 is the flow chart of another disk scanning method provided in an embodiment of the present invention.
Another disk scanning method provided in an embodiment of the present invention, is specifically as follows：
Step S401：When new Disk Mapping to scsi device, it is necessary to when finding new disk, search current failure SCSI and set
It is standby.
Here step S401 could alternatively be step S201 or step S301；Step S401 associated description can be joined
The associated description to step S101, step S201 and step S301 is read, is repeated no more here.
Step S402：Delete the scanning record of current failure scsi device.
The associated description to step S102 is referred to step S402 associated description, is repeated no more here.
Step S403：Current failure scsi device is rescaned based on HBA drivings, to find new disk.
In practical application, HBA drivings load in main frame in modular form, so HBA drivings can independent quilt
Unload and be reloaded, based on this principle, can be driven by HBA and rescan current failure scsi device, improve weight
New scan efficiency.Here illustrated so that the scanning of current scsi device record is under/sys catalogues as an example：When in/sys mesh
After the lower scanning record for deleting current scsi device of record, HBA Issuelip (scanning) functions of driving can be exported to this/
Under sys catalogues, afterwards, main frame can with by this/sys catalogues under Issuelip functions rescan current failure SCSI and set
It is standby, and then scan the disk of new mappings.
Present invention also offers a kind of disk scanning system, and it has a kind of disk scanning side provided in an embodiment of the present invention
The corresponding effect that method has.Referring to Fig. 5, Fig. 5 is a kind of structural representation of disk scanning system provided in an embodiment of the present invention
Figure.
A kind of disk scanning system provided in an embodiment of the present invention, can include：
Searching modul 101, for, it is necessary to when finding new disk, searching current failure when new Disk Mapping to scsi device
Scsi device；
Removing module 102, for deleting current failure scsi device；
Scan module 103, for rescaning current failure scsi device, to find new disk.
In a kind of disk scanning system provided in an embodiment of the present invention, searching modul can include：
First searching unit, for searching current failure scsi device based on multipath instruments.
In a kind of disk scanning system provided in an embodiment of the present invention, searching modul can include：
Second searching unit, it is for searching and determining to there is currently no IO and/or scsi device without Disk Mapping
Current failure scsi device.
In a kind of disk scanning system provided in an embodiment of the present invention, scan module can include：
Scanning element, for rescaning current failure scsi device based on HBA drivings.
Present invention also offers a kind of disk scanning equipment and computer-readable storage medium, it is respectively provided with the embodiment of the present invention and carried
The corresponding effect that a kind of disk scanning method supplied has.Referring to Fig. 6, Fig. 6 is a kind of disk provided in an embodiment of the present invention
The structural representation of scanning device.
A kind of disk scanning equipment provided in an embodiment of the present invention, can include：
Memory 201, for storing computer program；
Processor 202, a kind of as above disk scanning described by any embodiment is realized during for performing computer program
The step of method.
In a kind of computer-readable storage medium provided in an embodiment of the present invention, computer journey is stored with computer-readable storage medium
Sequence, the step of a kind of as above disk scanning method described by any embodiment is realized when computer program is executed by processor.
Relevant portion says in a kind of disk scanning system provided in an embodiment of the present invention, equipment and computer-readable storage medium
The bright detailed description for referring to corresponding part in a kind of disk scanning method provided in an embodiment of the present invention, will not be repeated here.
In addition, portion consistent with corresponding to technical scheme realization principle in the prior art in above-mentioned technical proposal provided in an embodiment of the present invention
Divide and unspecified, in order to avoid excessively repeat.
The foregoing description of the disclosed embodiments, those skilled in the art are enable to realize or using the present invention.To this
A variety of modifications of a little embodiments will be apparent for a person skilled in the art, and generic principles defined herein can
Without departing from the spirit or scope of the present invention, to realize in other embodiments.Therefore, the present invention will not be limited
The embodiments shown herein is formed on, and is to fit to consistent with principles disclosed herein and features of novelty most wide
Scope.
Claims (10)
- A kind of 1. disk scanning method, it is characterised in that including：When new Disk Mapping to scsi device, it is necessary to when finding the new disk, current failure scsi device is searched；Delete the scanning record of the current failure scsi device；The current failure scsi device is rescaned, to find the new disk.
- 2. according to the method for claim 1, it is characterised in that the lookup current failure scsi device, including：Current failure scsi device is searched based on multipath instruments.
- 3. according to the method for claim 1, it is characterised in that the lookup current failure scsi device, including：Search and determine that there is currently no IO and/or the scsi device without Disk Mapping is current failure scsi device.
- 4. according to the method described in any one of claims 1 to 3, it is characterised in that described to rescan the current failure Scsi device, including：The current failure scsi device is rescaned based on HBA drivings.
- A kind of 5. disk scanning system, it is characterised in that including：Searching modul, for, it is necessary to when finding the new disk, searching current failure SCSI when new Disk Mapping to scsi device Equipment；Removing module, for deleting the current failure scsi device；Scan module, for rescaning the current failure scsi device, to find the new disk.
- 6. system according to claim 5, it is characterised in that the searching modul includes：First searching unit, for searching current failure scsi device based on multipath instruments.
- 7. system according to claim 5, it is characterised in that the searching modul includes：Second searching unit, it is current for searching and determining to there is currently no IO and/or scsi device without Disk Mapping Fail scsi device.
- 8. system according to claim 5, it is characterised in that the scan module includes：Scanning element, for rescaning the current failure scsi device based on HBA drivings.
- A kind of 9. disk scanning equipment, it is characterised in that including：Memory, for storing computer program；Processor, a kind of disk scanning side as described in any one of Claims 1-4 is realized during for performing the computer program The step of method.
- 10. a kind of computer-readable storage medium, it is characterised in that computer program, institute are stored with the computer-readable storage medium State and realized when computer program is executed by processor as described in any one of Claims 1-4 the step of a kind of disk scanning method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711013879.3A CN107704209A (en) | 2017-10-26 | 2017-10-26 | A kind of disk scanning method, system, equipment and computer-readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711013879.3A CN107704209A (en) | 2017-10-26 | 2017-10-26 | A kind of disk scanning method, system, equipment and computer-readable storage medium |
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| CN107704209A true CN107704209A (en) | 2018-02-16 |
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| CN201711013879.3A Pending CN107704209A (en) | 2017-10-26 | 2017-10-26 | A kind of disk scanning method, system, equipment and computer-readable storage medium |
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Application publication date: 20180216 |