CN102750110A - High-reliable disk array system for configuration information - Google Patents
High-reliable disk array system for configuration information Download PDFInfo
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- CN102750110A CN102750110A CN2011103263861A CN201110326386A CN102750110A CN 102750110 A CN102750110 A CN 102750110A CN 2011103263861 A CN2011103263861 A CN 2011103263861A CN 201110326386 A CN201110326386 A CN 201110326386A CN 102750110 A CN102750110 A CN 102750110A
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Abstract
The invention relates to a high-reliable disk array system for configuration information. The disk array system comprises a disk array and a system disk, wherein the disk array is composed of physical disks, the system disk is installed in the disk array and connected with the disk array through a universal serial bus (USB) port, the system disk is a USB startup disk format and comprises a storage operating system, an application program and a mirror image of the configuration information, and the storage operating system and the application procedure are used for managing the disk array. The disk array composed of the physical disks is constructed on a basis of an X86 structure, and an area is divided from the tail end of each of the physical disks and used for storing the configuration information and association attributes of the configuration information. According to the high-reliable disk array system for the configuration information, the copied configuration information can be directly saved in the disks and the system disk, double backups are achieved, and the disk array system is reliable.
Description
Technical field
The present invention relates to the highly reliable disc array system of a kind of configuration information, belong to the computer data field of storage.
Background technology
Disc array system is the important external unit that satisfies mass data storage, the disc array system of a certain brand, and the storage operating system that generally all can be equipped with special exploitation carries out control and management.With the disk array basis, the storage operating system that combines array to manage, and operate in the various application programs on the storage operating system, and just constituted the basic framework of data-storage system, be applied to various concrete data processing and store occasion.
Present common Windows operating system, the basic configuration information of operating system and application program all is kept in the registration table, and these configuration informations are the significant data storehouses of guaranteeing the normal operation of system.Similarly; Storage operating system on the disk array and application program have some basic configuration informations; And storage operating system and application program are being carried out disk array in the process of control and management; Also can write down some necessary configuration informations, the database that these configuration informations constitute needs properly to preserve and in time obtain equally, could guarantee the normal use of whole data-storage system function.
From architecture; On external disk storage processor market; Intel has accounted for the market share of 70-80%, that is to say, the most disk array products on the storage market have all adopted the processor core of Intel at present; Intel X86 framework has much the gesture that sweeps across storage, and the usage space of traditional embedded disc array system is by progressively compression.Embedded disc array system majority is to use the data structure that defines in the program to preserve configuration information; These data structures are arranged in internal memory; Directly be saved in exterior storage medium through system call; Obviously, this can cause from the configuration information that exterior storage medium reads is various self-defining data structure object, thereby can't intuitively know the real meaning of these information.The disc array system of general X86 framework, the preservation of configuration information and obtaining is based on all that file system carries out; Be that configuration information is written in some file of file system; These files are through the complex process mechanism of file system, finally with exterior storage medium on physical space corresponding, read configuration information and equal to read these files; Processing through file system finally is summed up as the visit to corresponding physical space on the exterior storage medium.This configuration information processing policy based on file system, after file system corruption, configuration information must suffer a loss, and very likely causes serious consequences such as system state is unusual, data in magnetic disk is lost.
Summary of the invention
The objective of the invention is to preserve and obtain the deficiency that exists at configuration information, proposes a kind ofly to preserve and obtain reliable more disc array system at configuration information to present existing disc array system.
The disc array system that a kind of configuration information is highly reliable comprises: disk array, system disk and storage operating system that physical disk constitutes.
The disk array that said physical disk constitutes based on the X86 structure construction, and marks off a zone to each disk wherein from the disk end, is used for depositing the association attributes of configuration information and configuration information, and title should the zone be the configuration information storage block.The size of configuration information storage block is by artificial setting.
The configuration information storage block is made up of two parts, is respectively header part and data division.The association attributes of header part store configuration information comprises: update times (cnt representes with symbol), data length (len representes with symbol) and data check value (mark representes with symbol).The number of times that the configuration information storage block of update times cnt storage place disk is updated.The length of data division in the configuration information storage block of data length len storage place disk.The informative abstract value of data division in the configuration information storage block of data check value mark storage place disk; The algorithm that obtains the informative abstract value of data division includes but not limited to: MD5.Data division is used for store configuration information, and this configuration information is the configuration information file through overcompression and encryption.
Said system disk links to each other with disk array; The system disk content stored includes but not limited to: storage operating system, application program and configuration information that disk array is managed.The zone of store configuration information is called the configuration information storage unit in the system disk.Stored configuration information is a configuration information image file through encryption in the configuration information storage unit.
Preferably, system disk links to each other with disk array through USB interface; System disk is a USB boot disk form.
Said storage operating system is stored in system disk, comprising: effectively configuration information retrieval module, system configuration information are provided with module, configuration information changes detection module, configuration information update module and configuration information and damages detection module.
The function of said effective configuration information retrieval module is in the storage operating system start-up course or receives configuration information and damage the damage that detection module sends and find after the signal; By effective configuration information retrieval module retrieval disk array or system disk; Find the current effective configuration information of system, and effective configuration information is sent to system configuration information module is set.
The function that said system configuration information is provided with module is that the effective configuration information that at first effective configuration information retrieval module is sent is handled, and obtains effective configuration file; Then effective configuration file is mounted to storage operating system and is used for preserving under the assigned catalogue of configuration information, and storage operating system is configured according to effective configuration file.
The function that said configuration information changes detection module is that the state that storage operating system is used for preserving all configuration files under the assigned catalogue of configuration information is supervised, and when finding wherein to have file to be modified, sends update signal to the configuration information update module.
The function of said configuration information update module is after the update signal that receives configuration information change detection module, upgrades the configuration information of disk array and system disk.
Renewal to disk array comprises: 1. storage operating system is used for preserving all configuration files under the assigned catalogue of configuration information, compresses and encryption, store the data division of the configuration information storage block of each disk in the disk array into; 2. calculate the length of data division of the configuration information storage block of each disk in the disk array, as the len value of the configuration information storage block of each disk in the disk array; 3. the data division according to the configuration information storage block of each disk in the disk array calculates the informative abstract value, upgrades the mark value of the configuration information storage block of every disk in disk array with it; 4. get the maximal value in the cnt value of configuration information storage block of each disk in the disk array, add the cnt value of 1 back as the configuration information storage block of each disk in the disk array.
Renewal to system disk comprises: storage operating system is used for preserving all configuration files under the assigned catalogue of configuration information, carries out encryption, and be made into image file, be kept at the configuration information storage unit of system disk.
The function that said configuration information damages detection module is that the supervision storage operating system is used for preserving all configuration files under the assigned catalogue of configuration information; When the part or all of configuration file of discovery is lost or damaged, send to damage and find that signal is to effective configuration information retrieval module.
Preferably; The said configuration information of stating damages detection module and finds that part or all of configuration file is lost or the concrete grammar that damages is: said configuration information damages listed files of detection module maintenance, all profile names that are used for preserving storage operating system; Configuration information damages detection module and regularly reads the respective file under the assigned catalogue that storage operating system is used for preserving configuration information according to the content of this table; If the file name in the tabulation can't read or read failure under assigned catalogue, show that this configuration file loses or damage.
The annexation of each functional module of the disc array system that the configuration information that the present invention proposes is highly reliable is:
Storage operating system and configuration information cell stores are on system disk, and system disk is installed in the reliable disc array system of the configuration information inside that the present invention proposes, and system disk links to each other with disk array; Configuration information changes detection module and is connected with the configuration information update module; The configuration information update module is connected with the configuration information storage unit with disk array respectively; Effectively the configuration information retrieval module is provided with module with system configuration information and is connected with disk array, configuration information storage unit, configuration information damage detection module respectively.
The workflow of the disc array system that the configuration information that the present invention proposes is highly reliable comprises that configuration information initialization flow process, configuration information update flow process and configuration information damage the reparation flow process.
Configuration information initialization flow process is specially:
The 1.1st step: disc array system powers up when starting, and the selective system dish is as boot disk, and the storage operating system on cranking system is overall, storage operating system call effective configuration information retrieval module in start-up course;
The 1.2nd step: effectively configuration information retrieval module retrieval disk array or system disk, find the current effective configuration information of system, and effective configuration information be sent to system configuration information module is set.
The concrete steps of preferably, searching the method for effective configuration information are:
The 1.2.1 step: utilize the interior data division of configuration information storage block of each disk in the disk array, calculate its informative abstract value successively.
1.2.2 step: pick out the disk that the mark value in the configuration information storage block equates in informative abstract value and this disk,, the configuration information damage on the disk be described or lacked, carry out the operation that 1.2.4 goes on foot at this moment if do not find the disk that satisfies condition; Otherwise, carry out the 1.2.3 operation in step.
1.2.3 step: find out the disk of cnt value maximum in the disk that the mark value from informative abstract value and this disk in the configuration information storage block equates, with the data division of configuration information storage block in this disk store through the configuration information file of overcompression and encryption as the current effective configuration information of system.
1.2.4 step: with the configuration information image file on the system disk as the current effective configuration information of system.
The 1.3rd step: system configuration information is provided with module effective configuration information that effective configuration information retrieval module sends is handled, and obtains effective configuration file;
The 1.4th step: system configuration information is provided with module and effective configuration file is mounted to storage operating system is used for protecting under the assigned catalogue of configuration information, and according to these information storage operating system is configured.
System configuration information described in the 1.3rd step is provided with the operation that effective configuration information that module sends effective configuration information retrieval module is handled, and divides 2 kinds of situation:
Situation 1:, obtain effective configuration file to deciphering and decompression through the configuration information file of overcompression and encryption;
Situation 2: the configuration information image file is carried out decryption processing, obtain effective configuration file;
The concrete steps of configuration information update flow process are:
The 2.1st step: configuration information changes the state of all configuration files under detection module is used for preserving configuration information to storage operating system the assigned catalogue and supervises; When finding to have partial document or all files to be modified, send update signal to the configuration information update module.
The 2.2nd step: the configuration information update module is upgraded the configuration information of disk array and system disk after the update signal that receives configuration information change detection module.
Preferably, when said configuration information to disk array and system disk upgrades, adopt the scsi command of standard directly configuration information to be written to the configuration information storage block of every disk in the disk array and the configuration information storage unit of system disk.
Configuration information damages the reparation flow process and is specially:
The 3.1st step: configuration information damages all configuration files under the assigned catalogue that detection module supervision storage operating system is used for preserving configuration information; When the part or all of configuration file of discovery is lost or damaged, send to damage and find that signal is to effective configuration information retrieval module.
The 3.2nd step: effectively configuration information retrieval module retrieval disk array or system disk, find the current effective configuration information of system, and effective configuration information be sent to system configuration information module is set.
The method of wherein, searching effective configuration information is with 1.2.1 step～the 1.2.4 step.
The 3.3rd step: system configuration information is provided with module effective configuration information that effective configuration information retrieval module sends is handled, and obtains effective configuration file;
The 3.4th step: system configuration information is provided with module and effective configuration file is mounted to storage operating system is used for protecting under the assigned catalogue of configuration information, and according to effective configuration file storage operating system is configured.
Beneficial effect
The highly reliable disc array system of configuration information that the present invention proposes is compared with present existing disc array system and is had the following advantages:
(1) configuration information directly is saved in exterior storage medium.System accomplishes initial synchronisation in start-up course; In the operational process, in a single day configuration information upgrades, and will be responsible for by specific process; Regularly be updated to exterior storage mediums such as disk and system disk; Middle layers such as file system are walked around in these operations, use the scsi command of standard directly storage medium to be read and write, and have solved because the configuration information that file system corruption is brought is lost problem.
(2) the dual backup of disk and system disk.When needs upgrade configuration information to exterior storage medium, can the while be updated to disk and system disk synchronously, configuration information has been carried out dual backup, guaranteed the reliable preservation of configuration information and obtained.
(3) make things convenient for the bulk migration of data in magnetic disk.The copy that configuration information is all arranged on every disk in the disk array; As long as have the complete and effective configuration information in these copies; Just can guarantee that all disks are after bulk migration is overlapped this brand disk array of identical configuration to other one in the disk array; Utilize the original environment of the fast quick-recovery of effective configuration information on the disk, thereby guarantee the normal use of data on the disk.
Description of drawings
Fig. 1 is the system assumption diagram of the highly reliable disc array system of a kind of configuration information of the present invention;
Fig. 2 is the disk configuration information storage block structural representation of the highly reliable disc array system of a kind of configuration information of the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the present invention is done further detailed description.
The highly reliable disc array system of a kind of configuration information of the present invention, its structure is as shown in Figure 1, comprising: disk array, system disk and storage operating system that physical disk constitutes.
The disk array that physical disk constitutes based on the X86 structure construction, and marks off the zone of a 64MB to wherein each disk from the disk end, is used for depositing the association attributes of configuration information and configuration information, and this zone is called the configuration information storage block.
The association attributes of header part store configuration information comprises: update times (cnt representes with symbol), data length (len representes with symbol) and data check value (mark representes with symbol).The number of times that the configuration information storage block of update times cnt storage place disk is updated accounts for 64 bytes.The length of data division accounts for 64 bytes in the configuration information storage block of data length len storage place disk.The informative abstract value of data division accounts for 16 bytes in the configuration information storage block of data check value mark storage place disk; The algorithm that obtains the informative abstract value of data division is MD5.Data division is used for store configuration information, and this configuration information is the configuration information file through overcompression and encryption.
System disk links to each other with disk array through USB interface; System disk is a USB boot disk form.The system disk content stored comprises: storage operating system, application program and configuration information that disk array is managed.The zone of store configuration information is called the configuration information storage unit in the system disk.Stored configuration information is a configuration information image file through encryption in the configuration information storage unit.
Storage operating system is stored in system disk, comprising: effectively configuration information retrieval module, system configuration information are provided with module, configuration information changes detection module, configuration information update module and configuration information and damages detection module.
Effectively the function of configuration information retrieval module is in the storage operating system start-up course or receives configuration information and damage the damage that detection module sends and find after the signal; By effective configuration information retrieval module retrieval disk array or system disk; Find the current effective configuration information of system, and effective configuration information is sent to system configuration information module is set.
The function that system configuration information is provided with module is that the effective configuration information that at first effective configuration information retrieval module is sent is handled, and obtains effective configuration file; Then effective configuration file is mounted to storage operating system and is used for preserving under the assigned catalogue of configuration information, and storage operating system is configured according to effective configuration file.
The function that configuration information changes detection module is that the state that storage operating system is used for preserving all configuration files under the assigned catalogue of configuration information is supervised, and when finding wherein to have file to be modified, sends update signal to the configuration information update module.
The function of configuration information update module is after the update signal that receives configuration information change detection module, upgrades the configuration information of disk array and system disk.
Renewal to disk array comprises: 1. storage operating system is used for preserving all configuration files under the assigned catalogue of configuration information, compresses and encryption, store the data division of the configuration information storage block of each disk in the disk array into; 2. calculate the length of data division of the configuration information storage block of each disk in the disk array, as the len value of the configuration information storage block of each disk in the disk array; 3. the data division according to the configuration information storage block of each disk in the disk array calculates the informative abstract value, upgrades the mark value of the configuration information storage block of every disk in disk array with it; 4. get the maximal value in the cnt value of configuration information storage block of each disk in the disk array, add the cnt value of 1 back as the configuration information storage block of each disk in the disk array.
Renewal to system disk comprises: storage operating system is used for preserving all configuration files under the assigned catalogue of configuration information, carries out encryption, and be made into image file, be kept at the configuration information storage unit of system disk.
The function that said configuration information damages detection module is that the supervision storage operating system is used for preserving all configuration files under the assigned catalogue of configuration information; When the part or all of configuration file of discovery is lost or damaged, send to damage and find that signal is to effective configuration information retrieval module.
Stating configuration information damages detection module and find that part or all of configuration file is lost or the concrete grammar that damages is: said configuration information damages listed files of detection module maintenance, all profile names that are used for preserving storage operating system; Configuration information damages detection module and regularly reads the respective file under the assigned catalogue that storage operating system is used for preserving configuration information according to the content of this table; If the file name in the tabulation can't read or read failure under assigned catalogue, show that this configuration file loses or damage.
The annexation of each functional module of the disc array system that the configuration information that the present invention proposes is highly reliable is:
Storage operating system and configuration information cell stores are on system disk, and system disk is installed in the reliable disc array system of the configuration information inside that the present invention proposes, and system disk links to each other with disk array; Configuration information changes detection module and is connected with the configuration information update module; The configuration information update module is connected with the configuration information storage unit with disk array respectively; Effectively the configuration information retrieval module is provided with module with system configuration information and is connected with disk array, configuration information storage unit, configuration information damage detection module respectively.
When disc array system powers up startup, configuration information initialization flow startup, its workflow is specially:
The 1.1st step: disc array system powers up when starting, and the selective system dish is as boot disk, and the storage operating system on cranking system is overall, storage operating system call effective configuration information retrieval module in start-up course;
The 1.2nd step: effectively configuration information retrieval module retrieval disk array or system disk, find the current effective configuration information of system, and effective configuration information be sent to system configuration information module is set.
The concrete steps of wherein, searching the method for effective configuration information are:
The 1.2.1 step: utilize the interior data division of configuration information storage block of each disk in the disk array, calculate its informative abstract value successively.
1.2.2 step: pick out the disk that the mark value in the configuration information storage block equates in informative abstract value and this disk,, the configuration information damage on the disk be described or lacked, carry out the operation that 1.2.4 goes on foot at this moment if do not find the disk that satisfies condition; Otherwise, carry out the 1.2.3 operation in step.
1.2.3 step: find out the disk of cnt value maximum in the disk that the mark value from informative abstract value and this disk in the configuration information storage block equates, with the data division of configuration information storage block in this disk store through the configuration information file of overcompression and encryption as the current effective configuration information of system.
1.2.4 step: with the configuration information image file on the system disk as the current effective configuration information of system.
The 1.3rd step: system configuration information is provided with module effective configuration information that effective configuration information retrieval module sends is handled, and obtains effective configuration file; Specifically be divided into 2 kinds of situation:
Situation 1:, obtain effective configuration file to deciphering and decompression through the configuration information file of overcompression and encryption;
Situation 2: the configuration information image file is carried out decryption processing, obtain effective configuration file;
The 1.4th step: system configuration information is provided with module and effective configuration file is mounted to storage operating system is used for protecting under the assigned catalogue of configuration information, and according to these information storage operating system is configured.
After disc array system powers up startup, the configuration information update flow startup, its concrete operations step is:
The 2.1st step: configuration information changes the state of all configuration files under detection module is used for preserving configuration information to storage operating system the assigned catalogue and supervises; When finding to have partial document or all files to be modified, send update signal to the configuration information update module.
The 2.2nd step: the configuration information update module is upgraded the configuration information of disk array and system disk after the update signal that receives configuration information change detection module.When the configuration information of disk array and system disk is upgraded, adopt the scsi command of standard directly configuration information to be written to the configuration information storage block of every disk in the disk array and the configuration information storage unit of system disk.
Renewal to disk array comprises: 1. storage operating system is used for preserving all configuration files under the assigned catalogue of configuration information, compresses and encryption, store the data division of the configuration information storage block of each disk in the disk array into; 2. calculate the length of data division of the configuration information storage block of each disk in the disk array, as the len value of the configuration information storage block of each disk in the disk array; 3. the data division according to the configuration information storage block of each disk in the disk array calculates the informative abstract value, upgrades the mark value of the configuration information storage block of every disk in disk array with it; 4. get the maximal value in the cnt value of configuration information storage block of each disk in the disk array, add the cnt value of 1 back as the configuration information storage block of each disk in the disk array.
Renewal to system disk comprises: storage operating system is used for preserving all configuration files under the assigned catalogue of configuration information, carries out encryption, and be made into image file, be kept at the configuration information storage unit of system disk.
After disc array system powered up startup, configuration information damages repaired flow startup, and its concrete operations step is:
The 3.1st step: configuration information damages all configuration files under the assigned catalogue that detection module supervision storage operating system is used for preserving configuration information; When the part or all of configuration file of discovery is lost or damaged, send to damage and find that signal is to effective configuration information retrieval module.
The 3.2nd step: effectively configuration information retrieval module retrieval disk array or system disk, find the current effective configuration information of system, and effective configuration information be sent to system configuration information module is set.
The method of wherein, searching effective configuration information is with 1.2.1 step～the 1.2.4 step.
The 3.3rd step: system configuration information is provided with module effective configuration information that effective configuration information retrieval module sends is handled, and obtains effective configuration file;
The 3.4th step: system configuration information is provided with module and effective configuration file is mounted to storage operating system is used for protecting under the assigned catalogue of configuration information, and according to effective configuration file storage operating system is configured.
More than combine specific embodiment that technical scheme of the present invention is described; But these explanations can not be understood that to have limited scope of the present invention; Protection scope of the present invention is limited the claims of enclosing, and any change on claim of the present invention basis all is protection scope of the present invention.
Claims (9)
1. the disc array system that configuration information is highly reliable is characterized in that: comprising: disk array, system disk and storage operating system that physical disk constitutes;
The disk array that said physical disk constitutes based on the X86 structure construction, and marks off a zone to each disk wherein from the disk end, is used for depositing the association attributes of configuration information and configuration information, and title should the zone be the configuration information storage block; The size of configuration information storage block is by artificial setting;
The configuration information storage block is made up of two parts, is respectively header part and data division; The association attributes of header part store configuration information comprises: update times, and cnt representes with symbol; Data length, len representes with symbol; The data check value, mark representes with symbol; The number of times that the configuration information storage block of update times cnt storage place disk is updated; The length of data division in the configuration information storage block of data length len storage place disk; The informative abstract value of data division in the configuration information storage block of data check value mark storage place disk; Data division is used for store configuration information, and this configuration information is the configuration information file through overcompression and encryption;
Said system disk links to each other with disk array; The system disk content stored includes but not limited to: storage operating system, application program and configuration information that disk array is managed; The zone of store configuration information is called the configuration information storage unit in the system disk; Stored configuration information is a configuration information image file through encryption in the configuration information storage unit;
Said storage operating system is stored in system disk, comprising: effectively configuration information retrieval module, system configuration information are provided with module, configuration information changes detection module, configuration information update module and configuration information and damages detection module;
The function of said effective configuration information retrieval module is in the storage operating system start-up course or receives configuration information and damage the damage that detection module sends and find after the signal; By effective configuration information retrieval module retrieval disk array or system disk; Find the current effective configuration information of system, and effective configuration information is sent to system configuration information module is set;
The function that said system configuration information is provided with module is that the effective configuration information that at first effective configuration information retrieval module is sent is handled, and obtains effective configuration file; Then effective configuration file is mounted to storage operating system and is used for preserving under the assigned catalogue of configuration information, and storage operating system is configured according to effective configuration file;
The function that said configuration information changes detection module is that the state that storage operating system is used for preserving all configuration files under the assigned catalogue of configuration information is supervised, and when finding wherein to have file to be modified, sends update signal to the configuration information update module;
The function of said configuration information update module is after the update signal that receives configuration information change detection module, upgrades the configuration information of disk array and system disk;
The function that said configuration information damages detection module is that the supervision storage operating system is used for preserving all configuration files under the assigned catalogue of configuration information; When the part or all of configuration file of discovery is lost or damaged, send to damage and find that signal is to effective configuration information retrieval module;
The annexation of each functional module of the disc array system that the configuration information that the present invention proposes is highly reliable is:
Storage operating system and configuration information cell stores are on system disk, and system disk is installed in the reliable disc array system of the configuration information inside that the present invention proposes, and system disk links to each other with disk array; Configuration information changes detection module and is connected with the configuration information update module; The configuration information update module is connected with the configuration information storage unit with disk array respectively; Effectively the configuration information retrieval module is provided with module with system configuration information and is connected with disk array, configuration information storage unit, configuration information damage detection module respectively;
The workflow of the disc array system that the configuration information that the present invention proposes is highly reliable comprises that configuration information initialization flow process, configuration information update flow process and configuration information damage the reparation flow process;
Configuration information initialization flow process is specially:
The 1.1st step: disc array system powers up when starting, and the selective system dish is as boot disk, and the storage operating system on cranking system is overall, storage operating system call effective configuration information retrieval module in start-up course;
The 1.2nd step: effectively configuration information retrieval module retrieval disk array or system disk, find the current effective configuration information of system, and effective configuration information be sent to system configuration information module is set;
The 1.3rd step: system configuration information is provided with module effective configuration information that effective configuration information retrieval module sends is handled, and obtains effective configuration file;
The 1.4th step: system configuration information is provided with module and effective configuration file is mounted to storage operating system is used for protecting under the assigned catalogue of configuration information, and according to these information storage operating system is configured;
The concrete steps of configuration information update flow process are:
The 2.1st step: configuration information changes the state of all configuration files under detection module is used for preserving configuration information to storage operating system the assigned catalogue and supervises; When finding to have partial document or all files to be modified, send update signal to the configuration information update module;
The 2.2nd step: the configuration information update module is upgraded the configuration information of disk array and system disk after the update signal that receives configuration information change detection module;
Configuration information damages the reparation flow process and is specially:
The 3.1st step: configuration information damages all configuration files under the assigned catalogue that detection module supervision storage operating system is used for preserving configuration information; When the part or all of configuration file of discovery is lost or damaged, send to damage and find that signal is to effective configuration information retrieval module;
The 3.2nd step: effectively configuration information retrieval module retrieval disk array or system disk, find the current effective configuration information of system, and effective configuration information be sent to system configuration information module is set;
The method of wherein, searching effective configuration information is with 1.2.1 step～the 1.2.4 step;
The 3.3rd step: system configuration information is provided with module effective configuration information that effective configuration information retrieval module sends is handled, and obtains effective configuration file;
The 3.4th step: system configuration information is provided with module and effective configuration file is mounted to storage operating system is used for protecting under the assigned catalogue of configuration information, and according to effective configuration file storage operating system is configured.
2. the highly reliable disc array system of a kind of configuration information as claimed in claim 1 is characterized in that:
Preferably, system disk links to each other with disk array through USB interface; System disk is a USB boot disk form.
3. according to claim 1 or claim 2 the highly reliable disc array system of a kind of configuration information; It is characterized in that: said configuration information update module comprises the renewal of disk array: 1. storage operating system is used for preserving all configuration files under the assigned catalogue of configuration information; Compress and encryption, store the data division of the configuration information storage block of each disk in the disk array into; 2. calculate the length of data division of the configuration information storage block of each disk in the disk array, as the len value of the configuration information storage block of each disk in the disk array; 3. the data division according to the configuration information storage block of each disk in the disk array calculates the informative abstract value, upgrades the mark value of the configuration information storage block of every disk in disk array with it; 4. get the maximal value in the cnt value of configuration information storage block of each disk in the disk array, add the cnt value of 1 back as the configuration information storage block of each disk in the disk array.
4. according to claim 1 or claim 2 the highly reliable disc array system of a kind of configuration information; It is characterized in that: said configuration information update module comprises the renewal of system disk: storage operating system is used for preserving all configuration files under the assigned catalogue of configuration information; Carry out encryption; And be made into image file, be kept at the configuration information storage unit of system disk.
5. like the highly reliable disc array system of the described a kind of configuration information of one of claim 1 to 4, it is characterized in that:
Preferably; Said configuration information damages detection module and finds that part or all of configuration file is lost or the concrete grammar that damages is: said configuration information damages listed files of detection module maintenance, all profile names that are used for preserving storage operating system; Configuration information damages detection module and regularly reads the respective file under the assigned catalogue that storage operating system is used for preserving configuration information according to the content of this table; If the file name in the tabulation can't read or read failure under assigned catalogue, show that this configuration file loses or damage.
6. like the highly reliable disc array system of the described a kind of configuration information of one of claim 1 to 5, it is characterized in that: the algorithm that obtains the informative abstract value of data division in the configuration information storage block of disk includes but not limited to: MD5.
7. like the highly reliable disc array system of the described a kind of configuration information of one of claim 1 to 6, it is characterized in that: in the said configuration information initialization flow process in the 1.2nd step effectively the concrete lookup method of configuration information be:
The 1.2.1 step: utilize the interior data division of configuration information storage block of each disk in the disk array, calculate its informative abstract value successively;
1.2.2 step: pick out the disk that the mark value in the configuration information storage block equates in informative abstract value and this disk,, the configuration information damage on the disk be described or lacked, carry out the operation that 1.2.4 goes on foot at this moment if do not find the disk that satisfies condition; Otherwise, carry out the 1.2.3 operation in step;
1.2.3 step: find out the disk of cnt value maximum in the disk that the mark value from informative abstract value and this disk in the configuration information storage block equates, with the data division of configuration information storage block in this disk store through the configuration information file of overcompression and encryption as the current effective configuration information of system;
1.2.4 step: with the configuration information image file on the system disk as the current effective configuration information of system.
8. like the highly reliable disc array system of the described a kind of configuration information of one of claim 1 to 7; It is characterized in that: in the said configuration information initialization flow process in the 1.3rd step system configuration information module is set effective configuration information that effective configuration information retrieval module sends is handled; Obtain the operation of effective configuration file, divide 2 kinds of situation:
Situation 1:, obtain effective configuration file to deciphering and decompression through the configuration information file of overcompression and encryption;
Situation 2: the configuration information image file is carried out decryption processing, obtain effective configuration file.
9. like the highly reliable disc array system of the described a kind of configuration information of one of claim 1 to 8; It is characterized in that: when upgrading the configuration information of disk array and system disk in the 2.2nd step in the said configuration information update flow process; Preferably, adopt the scsi command of standard directly configuration information to be written to the configuration information storage block of every disk in the disk array and the configuration information storage unit of system disk.
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