CN108762677A - A kind of intelligent scanning method and system of storage device - Google Patents
A kind of intelligent scanning method and system of storage device Download PDFInfo
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- CN108762677A CN108762677A CN201810537911.6A CN201810537911A CN108762677A CN 108762677 A CN108762677 A CN 108762677A CN 201810537911 A CN201810537911 A CN 201810537911A CN 108762677 A CN108762677 A CN 108762677A
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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
- G06F3/0604—Improving or facilitating administration, e.g. storage management
-
- 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
- G06F3/0631—Configuration or reconfiguration of storage systems by allocating resources to storage systems
-
- 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
- G06F3/0632—Configuration or reconfiguration of storage systems by initialisation or re-initialisation of storage systems
-
- 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
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/067—Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
Abstract
The invention discloses a kind of intelligent scanning method and system of storage device, this method includes：When administrator updates storage in equipment the mapping relations between applied host machine and LUN, storage device reports the modification information of correspondence mappings relationship to applied host machine；Applied host machine obtains the mapping relations between updated applied host machine and LUN in storage device under the triggering of modification information；Mapping relations of the applied host machine based on acquisition create or delete corresponding LUN device objects.Wherein, after administrator updates storage the mapping relations in equipment between applied host machine and LUN, corresponding modification information is sent to automatically by applied host machine by storage device, starts the storage device scanning process of applied host machine；When needing to delete LUN device objects, the establishment or deletion of LUN device objects are realized automatically based on the mapping relations got by applied host machine；To considerably increase the automaticity and intelligent of storage device scanning.
Description
Technical field
The present invention relates to SCSI External memory equipment scanning techniques fields, more specifically to a kind of storage device
Intelligent scanning method and system.
Background technology
In enterprise information system, set for the applied host machine (Host) of processing business request and the storage of storage data
Standby (Storage) (SAN) is interconnected by storing network.It is to be different from traditional ethernet data network to store network (SAN)
A kind of private high network, dedicated for connection applied host machine and storage device.The most common type SAN network is FC optical fiber
Channel network, applied host machine carry out networking with storage device by optical fiber cable, optical fiber switch (SAN switch).In order to improve
Redundancy is to store network bandwidth, and generally use stores multipath connection type, i.e. applied host machine passes through a plurality of physical pathway simultaneously
Storage device is accessed, as shown in Figure 1.
Data access is carried out by SCSI protocol between applied host machine and storage device.SCSI protocol defines one kind
Client-Servier frameworks, applied host machine is as the ends Client, by transport layer port, to service in a manner of scsi command
End, i.e. storage device sending device access request.Storage device is as the ends Server, by transport layer port reception come self-application
Command execution results and related data are sent to applied host machine by the order of host after processing is ordered.What SCSI protocol defined
This Client-Servier frameworks are as shown in Fig. 2, storage device is then properly termed as the SCSI external storages of applied host machine at this time
Equipment.Wherein, in storage device include multiple logic units (Logical Unit) equipment, there are one unique for each logic unit
Number be known as LUN (Logical Unit Number), indicate the logic unit equipment representated by it usually using LUN, such as
Logical volume in storage device is just indicated by LUN.Mapping relations between LUN and applied host machine define in storage device, LUN
After establishing mapping relations with applied host machine, it could be found and used by applied host machine.Applied host machine finds storage device mapping
The process of LUN is the process (the namely process of SCSI External memory equipments scanning) of SCSI bus scanning, initiates this process
It is generally necessary to which administrator executes by hand；If relieving the mapping of LUN and applied host machine in storage device, administrator is also needed to answer
With the device object created in discovery procedure before being deleted by hand in host, this flow is as shown in Figure 3.But it is this scanned
The step of journey needs administrator to realize by hand is more, automaticity and intelligent poor.
In conclusion in the prior art for realizing there are automaticitys and intelligent in the technical solution of storage device scanning
Relatively low problem.
Invention content
The object of the present invention is to provide a kind of intelligent scanning method and system of storage device, to improve storage device scanning
Automaticity in the process and intelligent.
To achieve the goals above, the present invention provides the following technical solutions：
A kind of intelligent scanning method of storage device, including：
When administrator updates storage in equipment the mapping relations between applied host machine and LUN, the storage device will be right
The modification information of mapping relations is answered to report to applied host machine；
The applied host machine obtains updated applied host machine in the storage device under the triggering of the modification information
And the mapping relations between LUN；
Mapping relations of the applied host machine based on acquisition create or delete corresponding LUN device objects.
Preferably, further include：
When administrator updates storage in equipment the mapping relations between applied host machine and LUN, the storage device generates
It indicates the flags parameters of mapping relations change and assigns corresponding parameter value；
The storage device reports the modification information of correspondence mappings relationship to applied host machine, including：
When the applied host machine sends arbitrary order to the storage device, the storage device returns to instruction inquiry letter
It ceases to the applied host machine；
The applied host machine obtains updated applied host machine in the storage device under the triggering of the modification information
And the mapping relations between LUN, including：
The applied host machine reads the flags parameters, and described in determination under the triggering of the instruction Query Information
The parameter value of flags parameters indicates to obtain updated mapping relations when the parameter value that mapping relations change.
Preferably, after the applied host machine reads the flags parameters, further include：
The storage device deletes the flags parameters.
Preferably, mapping relations of the applied host machine based on acquisition create or delete corresponding LUN device objects, wrap
It includes：
The mapping relations of acquisition are compared the applied host machine with the mapping relations that itself is stored, and delete reflecting for acquisition
The corresponding LUN device objects of mapping relations for penetrating the mapping relations reduction in relationship relative to itself storage, create reflecting for acquisition
Penetrate the corresponding LUN device objects of the increased mapping relations of mapping relations relative to itself storage in relationship.
Preferably, mapping relations of the applied host machine based on acquisition create or delete corresponding LUN device objects it
Afterwards, further include：
The information of establishment or the deletion of corresponding LUN device objects has been completed in the applied host machine output.
A kind of intelligent scanning system of storage device, including applied host machine and storage device, wherein：
The storage device, is used for：When administrator updates storage the mapping relations in equipment between applied host machine and LUN
When, the modification information of correspondence mappings relationship is reported to applied host machine；
The applied host machine, is used for：Under the triggering of the modification information, updated in the storage device answer is obtained
Mapping relations with the mapping relations between host and LUN, and based on acquisition create or delete corresponding LUN device objects.
Preferably, the storage device is additionally operable to：When administrator updates storage reflecting between applied host machine and LUN in equipment
When penetrating relationship, generates the flags parameters for indicating mapping relations change and assign corresponding parameter value；
The storage device includes：
Reporting modules are used for：When the applied host machine sends arbitrary order to the storage device, the storage device
Instruction Query Information is returned to the applied host machine；
The applied host machine includes：
Acquisition module is used for：The applied host machine reads the mark ginseng under the triggering of the instruction Query Information
Number, and obtain updated mapping in the parameter value that the parameter value expression mapping relations for determining the flags parameters change
Relationship.
Preferably, the storage device is additionally operable to：After the applied host machine reads the flags parameters, by the mark
Parameter is deleted.
Preferably, the applied host machine includes：
Respond module is used for：The applied host machine compares the mapping relations that the mapping relations of acquisition are stored with itself
It is right, delete the corresponding LUN equipment pair of mapping relations of the mapping relations reduction in the mapping relations of acquisition relative to itself storage
As creating the corresponding LUN equipment pair of the increased mapping relations of mapping relations relative to itself storage in the mapping relations of acquisition
As.
Preferably, the applied host machine is additionally operable to：Mapping relations based on acquisition create or delete corresponding LUN equipment
After object, the information of establishment or the deletion of corresponding LUN device objects has been completed in output.
The present invention provides a kind of intelligent scanning method and system of storage device, wherein this method includes：Work as administrator
When updating storage in equipment the mapping relations between applied host machine and LUN, the storage device is by the change of correspondence mappings relationship
Information is reported to applied host machine；The applied host machine is obtained and is updated in the storage device under the triggering of the modification information
The mapping relations between applied host machine and LUN afterwards；Mapping relations of the applied host machine based on acquisition create or deletion pair
The LUN device objects answered.In technical solution provided in an embodiment of the present invention, administrator update storage in equipment applied host machine and
After mapping relations between LUN, without as indicating that applied host machine executes the scanned of storage device by administrator in the prior art
Journey, but the corresponding modification information of update is sent to by applied host machine by storage device automatically, the storage to start applied host machine is set
Standby scanning process；And when needing to delete LUN device objects, deleted by hand by administrator in the prior art without picture, but
Realize the establishment or deletion of LUN device objects automatically based on the updated mapping relations got by applied host machine；To
The automaticity and intelligent of storage device scanning is considerably increased compared with the existing technology, and is reducing the same of manual intervention
When, the case where reducing the faulty operation brought due to manual intervention being likely to occur, is occurred.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the schematic diagram of FC SAN networks in background technology；
Fig. 2 is SCSI Client-Server illustratons of model in background technology；
Fig. 3 is the flow chart that applied host machine finds storage device in background technology；
Fig. 4 be in a kind of intelligent scanning method of storage device provided in an embodiment of the present invention step S11 to step S13's
Flow chart；
Fig. 5 is a kind of general flow chart of the intelligent scanning method of storage device provided in an embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, it illustrates a kind of flows of the intelligent scanning method of storage device provided in an embodiment of the present invention
Figure, which is characterized in that including：
S11：When administrator updates storage in equipment the mapping relations between applied host machine and LUN, storage device will be right
The modification information of mapping relations is answered to report to applied host machine.
Wherein, applied host machine and storage device can carry out data access by SCSI protocol, and corresponding, storage device is then
For the SCSI External memory equipments of applied host machine, the order that applied host machine is sent to storage device is then scsi command.It needs
Mapping relations that are bright, may being stored in storage device between applied host machine and LUN, then update mapping relations at this time
It is then to change mapping relations stored in storage device；May be stored in storage device any applied host machine and
Mapping relations between LUN, then update mapping relations are then to store mapping relations to storage device at this time.Storage device determines
After administrator updates mapping relations, corresponding modification information is reported to applied host machine automatically.
S12：Applied host machine under the triggering of modification information, obtain in storage device updated applied host machine and LUN it
Between mapping relations.
Applied host machine can obtain applied host machine and LUN currently stored in storage device under the triggering of modification information
Between mapping relations (currently stored mapping relations are updated mapping relations in storage device), and then based on obtain
Host delete or create corresponding LUN device objects.
S13：Mapping relations of the applied host machine based on acquisition create or delete corresponding LUN device objects.
Wherein, applied host machine delete or create LUN device objects process with correspond to technical solution in the prior art
Realization principle is consistent, and in simple terms, creating LUN device objects, then applied host machine then can be found that and use corresponding LUN, deletes
Then applied host machine can not find and use corresponding LUN to LUN device objects, specifically refer to and correspond to technical side in the prior art
Case, details are not described herein.
In technical solution provided in an embodiment of the present invention, administrator updates storage in equipment between applied host machine and LUN
After mapping relations, without the scanning process as indicating applied host machine execution storage device by administrator in the prior art, but by
The corresponding modification information of update is sent to applied host machine by storage device automatically, scanned with the storage device for starting applied host machine
Journey；And when needing to delete LUN device objects, deleted by administrator without picture, but is led by application by hand in the prior art
Machine realizes the establishment or deletion of LUN device objects based on the updated mapping relations got automatically；To relative to existing
There is technology to considerably increase the automaticity and intelligent of storage device scanning, and while reducing manual intervention, reduces
The case where faulty operation brought due to manual intervention being likely to occur, is occurred.
A kind of intelligent scanning method of storage device provided in an embodiment of the present invention can also include：
When administrator updates storage in equipment the mapping relations between applied host machine and LUN, storage device, which generates, to be indicated
The flags parameters of mapping relations change simultaneously assign corresponding parameter value；
Storage device reports the modification information of correspondence mappings relationship to applied host machine, may include：
When applied host machine sends arbitrary order to storage device, storage device returns to instruction Query Information and is led to application
Machine；
Applied host machine obtains in storage device under the triggering of modification information between updated applied host machine and LUN
Mapping relations may include：
Applied host machine reads flags parameters, and in the parameter value for determining flags parameters under the triggering of instruction Query Information
It indicates to obtain updated mapping relations when the parameter value that mapping relations change.
Wherein, when administrator updates storage the mapping relations between applied host machine and LUN in equipment, storage device can give birth to
At the flags parameters for indicating mapping relations change and corresponding parameter value is assigned, the flags parameters such as generated can be Sense
Data, Sense data include Sense code, and the value of Sense code can be for parameter value, can specifically be arranged to
Sense code=LUN_REMAP.When applied host machine sends arbitrary order to storage device, storage device, which checks whether there is, answers
With the corresponding parameter flag of host, such as the Sense data of Sense code=LUN_REMAP, if it is, storage device can
Indicate Query Information to return, such as command process state check condition, otherwise then response application host send this
Meaning order.Applied host machine reads flags parameters under the triggering of instruction Query Information, by initiating parameter reading order
Parameter value, such as orders REQUEST SENSE to read Sense data by initiation, and applied host machine determines the parameter value of flags parameters
To indicate that (such as applied host machine handles Sense data and understands Sense code=LUN_ the parameter value of mapping relations change
REMAP after), mapping relations reading order can be initiated and read updated mapping relations, as applied host machine initiates REPORT LUN
Updated mapping relations are read, storage device returns to updated mapping relations in response command REPORT LUN, to
Realize acquisition of the applied host machine to mapping relations；So that applied host machine effectively realizes the acquisition of mapping relations.It additionally needs
Illustrate, the mapping relations in the application can be stored in mapping table, and the corresponding mapping relations obtained can be then
Obtain mapping table, naturally it is also possible to carry out other settings according to actual needs, within protection scope of the present invention.
A kind of intelligent scanning method of storage device provided in an embodiment of the present invention, applied host machine read flags parameters it
Afterwards, can also include：
Storage device deletes flags parameters.
Wherein, after applied host machine reads flags parameters, storage device can directly delete flags parameters, such as delete
Sense data, to save the memory space in storage device, while avoid applied host machine mapping relations not again more
Under news, get flags parameters to again obtain correspondence mappings relationship the case where occur, save logical resource.
A kind of intelligent scanning method of storage device provided in an embodiment of the present invention, mapping of the applied host machine based on acquisition are closed
System creates or deletes corresponding LUN device objects, may include：
The mapping relations of acquisition are compared applied host machine with the mapping relations that itself is stored, and the mapping for deleting acquisition is closed
The corresponding LUN device objects of mapping relations in system relative to the mapping relations reduction of itself storage, the mapping for creating acquisition are closed
The corresponding LUN device objects of the increased mapping relations of mapping relations in system relative to itself storage.
Applied host machine, can be quickly and effectively real by the comparison of the mapping relations and the mapping relations of itself storage of acquisition
The establishment or deletion of existing LUN device objects；Other settings, the guarantor in the present invention can certainly be carried out according to actual needs
Within the scope of shield.
A kind of intelligent scanning method of storage device provided in an embodiment of the present invention, mapping of the applied host machine based on acquisition are closed
After system creates or deletes corresponding LUN device objects, can also include：
The information of establishment or the deletion of corresponding LUN device objects has been completed in applied host machine output.
Specifically, the information that establishment or the deletion of corresponding LUN device objects have been completed in output can be export to
Administrator's counterpart terminal can also be output to storage device, notify the update of relevant device LUN device objects through the above way
The information completed, to realize one step completed storage device scanning process.
It should be noted that the general flow chart of technical solution disclosed in the present application can be as shown in Figure 5, wherein application master
It may include that host-LUN mapping is closed that machine, which updates storage host-LUN mapping (mapping relations between host and LUN) in equipment,
The establishment and releasing of system；Storage device Intrusion Detection based on host may include generating corresponding applied host machine-LUN to the update of mapping relations
Map listing (host-LUN mapping that corresponding applied host machine creates) and deletion applied host machine-LUN mapping list (corresponding application master
Host-LUN mapping that machine releases), LUN lists are identical as host-meaning of LUN mapping list；As it can be seen that applied host machine has place
The logic for managing the Sense data of Sense code=LUN_REMAP scans (i.e. SCSI so as to execute SCSI bus automatically
The scanning of External memory equipment), new mapping relations are obtained, and according to the variation of the old and new's mapping relations, be automatically deleted/create
LUN device objects notify deletion/establishment event of other resume module LUN device objects, and then realize the intelligence of storage device
Scan process；Storage device is actively reported to applied host machine after administrator updates mapping relations, so that applied host machine is real
Existing follow-up storage device scan process, reduces the manual operations of administrator, reduces the probability of error.
The embodiment of the present invention additionally provides a kind of intelligent scanning system of storage device, may include applied host machine and storage
Equipment, wherein：
Storage device is used for：It, will when administrator updates storage in equipment the mapping relations between applied host machine and LUN
The modification information of correspondence mappings relationship is reported to applied host machine；
Applied host machine is used for：Under the triggering of modification information, updated applied host machine and LUN in storage device are obtained
Between mapping relations, and mapping relations based on acquisition create or delete corresponding LUN device objects.
A kind of intelligent scanning system of storage device provided in an embodiment of the present invention, storage device are additionally operable to：Work as administrator
When updating storage in equipment the mapping relations between applied host machine and LUN, generates and indicate the flags parameters of mapping relations change simultaneously
Assign corresponding parameter value；
Storage device may include：
Reporting modules are used for：When applied host machine sends arbitrary order to storage device, storage device returns to instruction inquiry
Information is to applied host machine；
Applied host machine may include：
Acquisition module is used for：Applied host machine reads flags parameters, and mark determining under the triggering of instruction Query Information
The parameter value of will parameter indicates to obtain updated mapping relations when the parameter value that mapping relations change.
A kind of intelligent scanning system of storage device provided in an embodiment of the present invention, storage device are additionally operable to：Applied host machine
After reading flags parameters, flags parameters are deleted.
A kind of intelligent scanning system of storage device provided in an embodiment of the present invention, applied host machine may include：
Respond module is used for：The mapping relations of acquisition are compared applied host machine with the mapping relations that itself is stored, and delete
Except the corresponding LUN device objects of mapping relations relative to the mapping relations reduction of itself storage in the mapping relations of acquisition, wound
Build the corresponding LUN device objects of the increased mapping relations of mapping relations relative to itself storage in the mapping relations of acquisition.
A kind of intelligent scanning system of storage device provided in an embodiment of the present invention, applied host machine are additionally operable to：Based on acquisition
Mapping relations create or after deleting corresponding LUN device objects, the establishment of corresponding LUN device objects has been completed in output
Or the information deleted.
It should be noted that relevant portion in a kind of intelligent scanning system of storage device provided in an embodiment of the present invention
The detailed description for illustrating to refer to corresponding part in the intelligent scanning method of storage device provided in an embodiment of the present invention a kind of,
This is repeated no more.In addition in above-mentioned technical proposal provided in an embodiment of the present invention with correspond in the prior art technical solution realize it is former
Consistent part and unspecified is managed, in order to avoid excessively repeat.
The foregoing description of the disclosed embodiments enables those skilled in the art to realize or use the present invention.To this
A variety of modifications of a little embodiments will be apparent for a person skilled in the art, and the general 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
It is formed on the embodiments shown herein, and is to fit to consistent with the principles and novel features disclosed in this article widest
Range.
Claims (10)
1. a kind of intelligent scanning method of storage device, which is characterized in that including：
When administrator updates storage in equipment the mapping relations between applied host machine and LUN, the storage device reflects correspondence
The modification information for penetrating relationship is reported to applied host machine；
The applied host machine under the triggering of the modification information, obtain in the storage device updated applied host machine and
Mapping relations between LUN；
Mapping relations of the applied host machine based on acquisition create or delete corresponding LUN device objects.
2. according to the method described in claim 1, it is characterized in that, further including：
When administrator updates storage in equipment the mapping relations between applied host machine and LUN, the storage device, which generates, to be indicated
The flags parameters of mapping relations change simultaneously assign corresponding parameter value；
The storage device reports the modification information of correspondence mappings relationship to applied host machine, including：
When the applied host machine sends arbitrary order to the storage device, the storage device returns to instruction Query Information and gives
The applied host machine；
The applied host machine under the triggering of the modification information, obtain in the storage device updated applied host machine and
Mapping relations between LUN, including：
The applied host machine reads the flags parameters, and determining the mark under the triggering of the instruction Query Information
The parameter value of parameter indicates to obtain updated mapping relations when the parameter value that mapping relations change.
3. according to the method described in claim 2, it is characterized in that, after the applied host machine reading flags parameters, go back
Including：
The storage device deletes the flags parameters.
4. according to the method described in claim 3, it is characterized in that, mapping relations of the applied host machine based on acquisition create or
Person deletes corresponding LUN device objects, including：
The mapping relations of acquisition are compared the applied host machine with the mapping relations that itself is stored, and the mapping for deleting acquisition is closed
The corresponding LUN device objects of mapping relations in system relative to the mapping relations reduction of itself storage, the mapping for creating acquisition are closed
The corresponding LUN device objects of the increased mapping relations of mapping relations in system relative to itself storage.
5. according to the method described in claim 4, it is characterized in that, mapping relations of the applied host machine based on acquisition create or
After person deletes corresponding LUN device objects, further include：
The information of establishment or the deletion of corresponding LUN device objects has been completed in the applied host machine output.
6. a kind of intelligent scanning system of storage device, which is characterized in that including applied host machine and storage device, wherein：
The storage device, is used for：It, will when administrator updates storage in equipment the mapping relations between applied host machine and LUN
The modification information of correspondence mappings relationship is reported to applied host machine；
The applied host machine, is used for：Under the triggering of the modification information, updated application master in the storage device is obtained
Mapping relations between machine and LUN, and the mapping relations based on acquisition create or delete corresponding LUN device objects.
7. system according to claim 6, which is characterized in that the storage device is additionally operable to：When administrator updates storage
In equipment when mapping relations between applied host machine and LUN, generates and indicate that the flags parameters of mapping relations change simultaneously assign correspondence
Parameter value；
The storage device includes：
Reporting modules are used for：When the applied host machine sends arbitrary order to the storage device, the storage device returns
Indicate Query Information to the applied host machine；
The applied host machine includes：
Acquisition module is used for：The applied host machine reads the flags parameters under the triggering of the instruction Query Information, and
Updated mapping relations are obtained in the parameter value that the parameter value expression mapping relations for determining the flags parameters change.
8. system according to claim 7, which is characterized in that the storage device is additionally operable to：The applied host machine is read
After the flags parameters, the flags parameters are deleted.
9. system according to claim 8, which is characterized in that the applied host machine includes：
Respond module is used for：The mapping relations of acquisition are compared the applied host machine with the mapping relations that itself is stored, and delete
Except the corresponding LUN device objects of mapping relations relative to the mapping relations reduction of itself storage in the mapping relations of acquisition, wound
Build the corresponding LUN device objects of the increased mapping relations of mapping relations relative to itself storage in the mapping relations of acquisition.
10. system according to claim 9, which is characterized in that the applied host machine is additionally operable to：Mapping based on acquisition is closed
Output has been completed to correspond to the establishment or deletion of LUN device objects after corresponding LUN device objects are either deleted in system's establishment
Information.
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Application publication date: 20181106 |