CN102103665A - Data protection method, device of memory system, and memory system - Google Patents
Data protection method, device of memory system, and memory system Download PDFInfo
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- CN102103665A CN102103665A CN2009102433957A CN200910243395A CN102103665A CN 102103665 A CN102103665 A CN 102103665A CN 2009102433957 A CN2009102433957 A CN 2009102433957A CN 200910243395 A CN200910243395 A CN 200910243395A CN 102103665 A CN102103665 A CN 102103665A
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Abstract
The embodiment of the invention provides a data protection method and device of a memory system, and the memory system. The method comprises the following steps of: receiving an access password of a request for access LUN (Logical Unit Number) in a memory array transmitted by a client via a management interface; verifying whether the access password is matched with a pre-set password stored in the memory array, if so, transmitting an allowing response message to the client by the management interface, or else, transmitting a refusing response message by the management interface. The device comprises an access password receiving module, a verifying module and a transmitting module. The memory system comprises a memory controller and the memory array. Via the embodiment of the invention, the access password transmitted by the client is directly received by the management interface in an internal network; and the access password is matched with the pre-set password stored in the memory array so as to avoid transmitting the access password via a service interface in a public network; and the safety of the data is ensured when the memory array is lost or the memory host is invaded so as to achieve the secure access of LUN.
Description
Technical field
The present invention relates to technical field of data storage, relate in particular to a kind of data guard method, device and storage system of storage system.
Background technology
Along with the development of information society, increasing information especially is accompanied by the development of Internet (internet) by datumization, and data are explosive growth.As the driving element of network, information data is becoming server.Internet and developing rapidly based on the business model of Web (network), facilitated the formation of complicated non-centralized information environment day by day, the important commercial data often are distributed in many Web servers, file server and storage area network (Storage AreaNetwork; Hereinafter to be referred as: SAN) be connected storage (Network Attached Storage with attached net; Hereinafter to be referred as: NAS) etc. in the storage system.Therefore, safety of data is subjected to people's attention day by day as the basis of network development.
In the prior art, storage system generally comprises the storage host that is used to store the storage array of data and is used to visit storage array.
At present, the protecting data measure mainly contains two kinds in storage system.A kind of is to adopt the mode of authentication to realize (the Logical Unit of logical block in the storage array; Hereinafter to be referred as: visit LUN), for example, the storage host in the storage system adopts Internet Small Computer Systems Interface (InternetSmall Computer System Interface; Hereinafter to be referred as: inquiry the ISCSI)-authentication protocol of shaking hands (Challenge-Handshake Authentication Protocol; Hereinafter to be referred as: CHAP), discern user's identity by match user name and login password.Another kind is to adopt authorization to realize the visit of LUN, for example, adopt LUN Masking (LUN masking) technology, promptly each storage host only allows to visit the LUN that distributes to this storage host, and have no right to visit other LUN, thereby reduce dangerous of data loss among other LUN.Yet, the mode of employing authentication, the security of data in transmission course that only can improve storage system; Adopt authorization, mainly solve the Lawful access of LUN between storage host, realize data isolation, this dual mode can't solve all that storage array is lost or the data security problem of storage host when invaded.
Summary of the invention
The embodiment of the invention provides a kind of data guard method, device and storage system of storage system, in order to solve that storage array is lost or the data security problem of storage host when invaded, realizes the secure access of LUN.
The embodiment of the invention provides a kind of data guard method of storage system, comprising:
Access code by logical block LUN in the request visit storage array of management interface reception client transmission;
Verify whether described access code and the preset password that is stored in the described storage array mate, if, then send the permission response message that allows the described LUN of visit to described client by described management interface, otherwise, by the refusal response message of described management interface to the described LUN of described client transmission denied access.
The embodiment of the invention provides a kind of data protecting device of storage system, comprising:
The access code receiver module is used for the access code of visiting storage array logical block LUN by the request that management interface reception client sends;
Authentication module is used for verifying whether described access code receiver module described access code that receives and the preset password that is stored in described storage array mate;
Sending module, be used for when described access code and described preset password coupling, send the permission response message that allows the described LUN of visit to described client by described management interface, when described access code and described preset password do not match, send the refusal response message of the described LUN of denied access to described client by described management interface.
The embodiment of the invention provides a kind of storage system, comprising: memory controller and storage array, wherein,
Described memory controller is used for receiving the access code that described storage array logical block LUN is visited in request that client sends by management interface, and verify whether described access code and the preset password that is stored in the described storage array mate, when described access code and described preset password coupling, send the permission response message that allows the described LUN of visit to described client by described management interface, when described access code and described preset password do not match, send the refusal response message of the described LUN of denied access to described client by described management interface;
Described storage array is used to store data and described preset password.
The data guard method of the storage system of the embodiment of the invention, device and storage system; access code by the transmission of the management interface direct reception client end in the internal network; and be complementary with the preset password that is stored in the storage array; avoided the transmission of access code by business interface in the public network; can lose or storage host guarantees when invaded the safety of data to have realized the secure access of LUN at storage array.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use is done an introduction simply in will describing embodiment below, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the process flow diagram of a kind of embodiment of the data guard method of storage system of the present invention;
Fig. 2 is the process flow diagram of the another kind of embodiment of the data guard method of storage system of the present invention;
Fig. 3 is the structural representation of a kind of embodiment of the data protecting device of storage system of the present invention;
Fig. 4 is the structural representation of the another kind of embodiment of the data protecting device of storage system of the present invention;
Fig. 5 is the system chart of storage system embodiment of the present invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Fig. 1 is the process flow diagram of a kind of embodiment of the data guard method of storage system of the present invention.As shown in Figure 1, the embodiment of the invention provides a kind of data guard method of storage system, comprising:
Step 101, receive the access code of logical block LUN in the request visit storage array that client sends by management interface;
Step 102, verify whether this access code and the preset password that is stored in the storage array mate, if then execution in step 103, otherwise, execution in step 104;
Step 103, send to allow the permission response message of visit LUN to client by management interface;
Step 104, send the refusal response message of denied access LUN to client by management interface.
In embodiments of the present invention, above-mentioned steps can be finished by the memory controller in the storage array.If certain LUN in user's desire visit storage array, need at first to send access code by management interface to memory controller by client, after memory controller receives access code, with in itself and the storage array in advance the preset password of storage compare, if both mate mutually, then send and allow response message, to allow this LUN of user capture to client; Otherwise, sending the refusal response message to client, refusing user's is visited this LUN, and at this moment, the user only can obtain the general information such as LUN capacity etc., haves no right it is carried out the reading and writing or the format of data.Be equivalent to LUN has been carried out locking protection.
Because storage array generally is positioned at internal network, so access code only transmits in internal network usually, has higher security.If storage array is lost or storage host is invaded, because the winner of storage array or the invador of storage host can't obtain access code, so data have very high security.
The data guard method of the storage system of the embodiment of the invention; access code by the transmission of the management interface direct reception client end in the internal network; and be complementary with the preset password that is stored in the storage array; avoided the transmission of access code by business interface in the public network; can lose or storage host guarantees when invaded the safety of data to have realized the secure access of LUN at storage array.
Fig. 2 is the process flow diagram of the another kind of embodiment of the data guard method of storage system of the present invention.As shown in Figure 2, the data guard method of the storage system that provides of the embodiment of the invention can comprise:
In the present embodiment, at first memory controller provides management interface to administrative client, and the user can set a preset password to single LUN, is used for mating when this LUN of subsequent access.When password was set, the array of preset password and storage array number was synthetic, and encrypted and be stored in all hard disks of forming storage array.When passwords, from hard disk, read preset password after, mate with access code again.
Further, after step 205, can also comprise:
After memory controller sends the permission response message that allows visit LUN by management interface to client, continuation receives the login password that client sends by storage host by business interface, when this login password is correct, receive the access request message that client sends by storage host by business interface.The fundamental purpose of authentication-access password is to improve to be stored in safety of data on the storage array; and utilize CHAP or LUN Masking technical identification login password mainly to improve the security of data in transmission course; these two kinds of methods are combined, can realize the double-encryption protection of data.
Generally speaking; storage host is linked public network; and storage array is positioned at internal network; two networks are UNICOM not, so the invaded probability of storage host is big, after storage host is invaded; the invador is difficult to reenter and invades storage array; and at this moment the LUN that shines upon to storage host of storage array does not allow to visit, so cannot visit the LUN on the storage array, plays the effect of protected data safety like this.When whole storage array stolen or lose after, the LUN of storage array the time needs the input reference password in visit, does not have access code, data can't be read and write; If the part hard disk in the storage array is lost, even then hard disk is linked into miscellaneous equipment, because preset password is bound mutually with storage array; under the incomplete situation of storage array; can't carry out password coupling, so data can't read and write also, play the effect of protected data safety like this.
Further, after step 208, can also comprise:
In the object machine middle level of storage system or the scsi command analytic sheaf can realize all non-read write commands to LUN, as bad track reparation order, administration order etc., storage system is when the operational order that receives LUN, at first it is checked, for read write command, then need the authentication-access password, the read write command function that the access code coupling is correctly then opened this LUN.It is each after LUN shines upon to storage host, storage array can connect with storage host, but not supporting business visit, do not support file system establishment etc., when LUN need use, just allow the access code of use at memory controller input LUN, when client stops to visit the time of LUN greater than Preset Time, when perhaps storage system takes place such as faults such as professional on line broken string or power down, automatically close the read write command function of this LUN, read while write command functions and can be provided with on a time period and open or close.
The data guard method of the storage system of the embodiment of the invention; with preset password and storage array binding storage; access code by the transmission of the management interface direct reception client end in the internal network; and be complementary with the preset password that is stored in the storage array; avoided the transmission of access code by business interface in the public network; and the read write command function is closed automatically, can lose or storage host guarantees when invaded the safety of data to have realized the secure access of LUN at storage array.
Fig. 3 is the structural representation of a kind of embodiment of the data protecting device of storage system of the present invention.As shown in Figure 3, the embodiment of the invention provides a kind of data protecting device of storage system, comprising: access code receiver module 31, authentication module 32 and sending module 33.Wherein, access code receiver module 31 is used for receiving by management interface the access code of the request visit storage array logical block LUN of client transmission; Whether authentication module 32 is used for authentication-access password receiver module 31 access code that receives and the preset password that is stored in storage array and mates; Sending module 33 is used for when access code and preset password coupling, send the permission response message that allows visit LUN to client by management interface, when access code and preset password do not match, send the refusal response message of denied access LUN to client by management interface.
In embodiments of the present invention, if certain LUN in user's desire visit storage array, need at first to send access code by management interface by client, after access code receiver module 31 receives access code, authentication module 32 with in itself and the storage array in advance the preset password of storage be complementary, if the match is successful, then sending module 33 sends to client and allows response message, to allow this LUN of user capture; Otherwise sending module 33 sends the refusal response message to client, and refusing user's is visited this LUN, and at this moment, the user only can obtain the general information such as LUN capacity etc., haves no right it is carried out the reading and writing or the format of data.Be equivalent to LUN has been carried out locking protection.
Because storage array generally is positioned at internal network, so access code only transmits in internal network usually, has higher security.If storage array is lost or storage host is invaded, because the winner of storage array or the invador of storage host can't obtain access code, so data have very high security.
The data protecting device of the storage system of the embodiment of the invention; access code by the transmission of the management interface direct reception client end in the internal network; and be complementary with the preset password that is stored in the storage array; avoided the transmission of access code by business interface in the public network; can lose or storage host guarantees when invaded the safety of data to have realized the secure access of LUN at storage array.
Fig. 4 is the structural representation of the another kind of embodiment of the data protecting device of storage system of the present invention.As shown in Figure 4, on the basis of said apparatus embodiment, can also comprise: preset password receiver module 41 and memory module 42.Wherein, preset password receiver module 41 is used for receiving the preset password that client sends by management interface; The preset password that memory module 42 is used for preset password receiver module 41 is received is bound mutually with storage array, and is stored in the storage array.
In the present embodiment, at first storage array provides management interface to administrative client, and the user can set a preset password to single LUN, is used for mating when this LUN of subsequent access.When password was set, the array of preset password and storage array number was synthetic, and encrypted and be stored in all hard disks of forming storage array.When passwords, from hard disk, read preset password after, mate with access code again.
Further, can also comprise: login password receiver module 43 and request of access receiver module 44.Wherein, login password receiver module 43 is used for receiving the login password that client sends by storage host by business interface; Request of access receiver module 44 is used for the login password that receives when login password receiver module 43 when correct, receives the access request message that client sends by storage host by business interface.
After sending module 33 sends the permission response message that allows visit LUN by management interface to client, login password receiver module 43 receives the login password that client sends by storage host by business interface, when this login password was correct, request of access receiver module 44 received the access request message that client sends by storage host by business interface.The fundamental purpose of authentication-access password is to improve to be stored in safety of data on the storage array; and utilize CHAP agreement or LUN Masking technical identification login password mainly to improve the security of data in transmission course; these two kinds of methods are combined, can realize the double-encryption protection of data.
When whole storage array stolen or lose after, the LUN of storage array the time needs the input reference password in visit, does not have access code, data can't be read and write; If the part hard disk in the storage array is lost, even then hard disk is linked into miscellaneous equipment, because preset password is bound mutually with storage array; under the incomplete situation of storage array; can't carry out password coupling, so data can't read and write also, play the effect of protected data safety like this.
Further, can also comprise: switch module 45, this switch module 45 are used for perhaps when storage system breaks down, closing the read write command function of LUN when time that client stops to visit LUN during greater than Preset Time.
In the object machine middle level of storage system or the scsi command analytic sheaf can realize all non-read write commands to LUN, as bad track reparation order, administration order etc., storage system is when the operational order that receives LUN, at first it is checked, for read write command, then need the authentication-access password, the read write command function that the correct then switch module 45 of access code coupling is opened this LUN.After LUN shines upon to storage host, storage array can connect with storage host, but not supporting business visit, do not support file system establishment etc., when LUN need use, just allow the access code of use at memory controller input LUN, when client stops to visit the time of LUN greater than Preset Time, when perhaps storage system takes place such as faults such as professional on line broken string or power down, switch module 45 is closed the read write command function of this LUN automatically, reads while write command functions and can be provided with on a time period and open or close.
The data protecting device of the storage system of the embodiment of the invention; with preset password and storage array binding storage; access code by the management interface direct reception client end in the internal network; and be complementary with the preset password that is stored in the storage array; avoided the transmission of access code by business interface in the public network; and switch module is set closes automatically to the read write command function; can lose or storage host guarantees when invaded the safety of data to have realized the secure access of LUN at storage array.
Fig. 5 is the system chart of storage system embodiment of the present invention.As shown in Figure 5, the embodiment of the invention provides a kind of storage system, comprise: memory controller 51 and storage array 52, wherein, memory controller 51 is used for receiving by management interface the access code of the request visit storage array logical block LUN of client transmission, and whether the authentication-access password mates with the preset password that is stored in the storage array, when access code and preset password coupling, send the permission response message that allows this LUN of visit to client by management interface, when access code and preset password do not match, send the refusal response message of denied access LUN to client by management interface; Storage array 52 is used to store data and preset password.
Specific descriptions among the native system embodiment among the function of each module such as the above-mentioned device embodiment shown in Figure 3 do not repeat them here.
In the storage system of the embodiment of the invention, the access code that memory controller sends by the management interface direct reception client end in the internal network, and be complementary with the preset password that is stored in the storage array, avoided the transmission of access code by business interface in the public network, can lose or storage host guarantees when invaded the safety of data to have realized the secure access of LUN at storage array.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of programmed instruction, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (9)
1. the data guard method of a storage system is characterized in that, comprising:
Access code by logical block LUN in the request visit storage array of management interface reception client transmission;
Verify whether described access code and the preset password that is stored in the described storage array mate, if, then send the permission response message that allows the described LUN of visit to described client by described management interface, otherwise, by the refusal response message of described management interface to the described LUN of described client transmission denied access.
2. the data guard method of storage system according to claim 1 is characterized in that, before the access code of logical block LUN in the storage array is visited in the described request that receives the client transmission by management interface, also comprises:
Receive the described preset password that described client sends by described management interface;
Described preset password is bound mutually with described storage array, and be stored in the described storage array.
3. the data guard method of storage system according to claim 1 and 2 is characterized in that, described by described management interface after described client sends the permission response message that allows the described LUN of visit, also comprise:
Receive the login password that described client sends by storage host by business interface;
When described login password is correct, receive the access request message that described client sends by described storage host by described business interface.
4. the data guard method of storage system according to claim 3 is characterized in that, described receive the access request message that described client sends by described storage host by described business interface after, also comprise:
When time that described client stops to visit described LUN greater than Preset Time, perhaps when described storage system breaks down, close the read write command function of described LUN.
5. the data protecting device of a storage system is characterized in that, comprising:
The access code receiver module is used for the access code of visiting storage array logical block LUN by the request that management interface reception client sends;
Authentication module is used for verifying whether described access code receiver module described access code that receives and the preset password that is stored in described storage array mate;
Sending module, be used for when described access code and described preset password coupling, send the permission response message that allows the described LUN of visit to described client by described management interface, when described access code and described preset password do not match, send the refusal response message of the described LUN of denied access to described client by described management interface.
6. the data protecting device of storage system according to claim 5 is characterized in that, also comprises:
The preset password receiver module is used for receiving the described preset password that described client sends by described management interface;
Memory module, the described preset password that is used for described preset password receiver module is received is bound mutually with described storage array, and is stored in the described storage array.
7. according to the data protecting device of claim 5 or 6 described storage systems, it is characterized in that, also comprise:
The login password receiver module is used for receiving the login password that described client sends by storage host by business interface;
The request of access receiver module is used for the described login password that receives when described login password receiver module when correct, receives the access request message that described client sends by described storage host by described business interface.
8. the data protecting device of storage system according to claim 7 is characterized in that, also comprises:
Switch module is used for perhaps when described storage system breaks down, closing the read write command function of described LUN when time that described client stops to visit described LUN during greater than Preset Time.
9. a storage system is characterized in that, comprising: memory controller and storage array, wherein,
Described memory controller is used for receiving the access code that described storage array logical block LUN is visited in request that client sends by management interface, and verify whether described access code and the preset password that is stored in the described storage array mate, when described access code and described preset password coupling, send the permission response message that allows the described LUN of visit to described client by described management interface, when described access code and described preset password do not match, send the refusal response message of the described LUN of denied access to described client by described management interface;
Described storage array is used to store data and described preset password.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009102433957A CN102103665A (en) | 2009-12-22 | 2009-12-22 | Data protection method, device of memory system, and memory system |
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| CN2009102433957A CN102103665A (en) | 2009-12-22 | 2009-12-22 | Data protection method, device of memory system, and memory system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607450A (en) * | 2013-11-20 | 2014-02-26 | 浪潮电子信息产业股份有限公司 | Storage system access control method |
| CN105357193A (en) * | 2015-10-30 | 2016-02-24 | 深圳云聚汇数码有限公司 | Anti-blasting data storage method |
| CN112685802A (en) * | 2020-12-28 | 2021-04-20 | 青岛信芯微电子科技股份有限公司 | Flash chip reading control method and device and storage medium |
| CN113448893A (en) * | 2020-03-10 | 2021-09-28 | 联发科技股份有限公司 | Method and apparatus for controlling access of multiple clients to a single storage device |
-
2009
- 2009-12-22 CN CN2009102433957A patent/CN102103665A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607450A (en) * | 2013-11-20 | 2014-02-26 | 浪潮电子信息产业股份有限公司 | Storage system access control method |
| CN105357193A (en) * | 2015-10-30 | 2016-02-24 | 深圳云聚汇数码有限公司 | Anti-blasting data storage method |
| CN113448893A (en) * | 2020-03-10 | 2021-09-28 | 联发科技股份有限公司 | Method and apparatus for controlling access of multiple clients to a single storage device |
| CN112685802A (en) * | 2020-12-28 | 2021-04-20 | 青岛信芯微电子科技股份有限公司 | Flash chip reading control method and device and storage medium |
| CN112685802B (en) * | 2020-12-28 | 2022-07-01 | 青岛信芯微电子科技股份有限公司 | Flash chip reading control method and device and storage medium |
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Application publication date: 20110622 |