CN101038562A - Memory device key data backup and recovering system and method thereof - Google Patents
Memory device key data backup and recovering system and method thereof Download PDFInfo
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Abstract
The invention discloses a data backup and recovery system comprising a remote control server end (8) and a terminal computer (1) which are all provided with an intelligent platform management interface (2), a base plate management controller (4), an out-of-band network interface (5), wherein, a data update control module (3) is provided in the intelligent platform management interface (2) of the terminal computer (1) for fetching a data recovery bit zone (7) to the base plate management controller (4) and determine whether the recovery of the storage apparatus data will be implemented in terms of the data recovery bit zone (7); the terminal computer (1) is provided with a data storage module (6) to storage the data of storage apparatus. The invention also discloses a storage apparatus data backup method and recovery method, thereby the start failure of the system caused by virus or mal-operation is avoided, and the work load for recovering the user key data by use of data recovery program is reduced considerably.
Description
Technical field
The present invention relates to computer realm, particularly relate to a kind of memory device key data backup and restoration methods.
Background technology
In computer application, the data of storing in the computing machine are very important, especially for operation crucial use server, the value of the data of its storage inside is higher than computer hardware itself far away.In order to ensure the safety of the data in the hard disc of computer, at present a lot of with the method for backup at the recovery of hard disc data, conclusion is got up to mainly contain following several:
1. adopt the mode of backup DISK to Image to carry out the backup and the recovery of data;
2. utilize move medias such as CD to carry out the data backup and the recovery of hard disk;
3. between the different subregions of same hard disk, carry out the backup and the recovery of data;
4. utilize the protection hidden partition (memory block, high-end address) of hard disk to carry out the backup and the recovery of data.
Wherein, the hard disc data backup mode of first three kind is because its security or dirigibility are relatively poor, generally seldom adopted by the computer user, and the method for the 4th kind of hard disc data backup and recovery is owing to utilized the hidden partition of hard disk, and the hidden partition of hard disk is by system discovery, can guarantee that by some cipher modes the data in the hard disk avoid external malicious attack (except the physical damage).And this method is more convenient to the recovery of hard disc data, has therefore all obtained using widely on desktop computer and notebook.All be based at present the protection subregion expansion of hard disk at the method overwhelming majority of the recovery of hard disc data and backup.
But in the application of server; because server adopts small computer system interface (SmallComputer System Interface more; SCSI) or Serial Attached SCSI (SAS) hard disk (Serial AttachedSCSI; SAS); and SCSI and SAS hard disk are not support hard disk protection hidden partition technology; therefore, the data backup of adopting at desktop computer and notebook and the method for recovery are difficult to be applied in server.
Importance in view of data in the server, in order to guarantee safety of data in the server, at present, a lot of data redundancy safety techniques in server, have been adopted, as Redundant Array of Independent Disks (RAID) (RedundantArray of Independent Disks, the RAID) image file in, hot spare disk (hot spare), regular data backup, methods such as ghost system recovery dish.But, even if adopt above technology, can only guarantee that also data can not lose because of the damage of storage mediums such as disk, and be difficult to avoid because virus attack the damage that the key feature information of the partition information of disk file system or file system is caused and cause the losing of data in the file system.
For the data of recovering to lose, at present, have and multiplely can carry out the instrument that file system data recovers, still, the prerequisite that these instruments can efficient operation is the key message of file system: " hard disk partition table " and " file system superblock " stands intact.If the superblock of the hard disk partition table of disk or file system is destroyed, the workload in the time of will greatly increasing the data recovery so causes to use and interrupts, even can cause some significant data of user to recover.Because mostly the application of server is 7 * 24 hours application, the user can not long application of tolerance be interrupted.
Summary of the invention
A kind of memory storage data backup and the recovery system that the objective of the invention is to overcome above-mentioned defective and provide, it is independent of computer-readable storage medium, can store and recover the computer file system key message intelligently.
In order to address the above problem, the invention provides a kind of memory storage data backup and recovery system, comprise Long-distance Control server end and terminal computer, the Long-distance Control server end is connected by network with terminal computer, Long-distance Control server end and terminal computer all comprise IPMI, baseboard management controller, band outer network interface
In the IPMI of described terminal computer, also comprise the Data Update control module;
The Data Update control module is used for by to baseboard management controller reading of data recovering mark position, and determines whether to recover the memory storage data according to the value of described data recovering mark position;
Described terminal computer also comprises data memory module, is used for store storage device data; And by the Data Update control module after the memory storage data are recovered to finish with described data recovering mark bit clear.
Described network is Internet or LAN (Local Area Network).
Another object of the present invention is to, a kind of memory storage data back up method is provided, it is characterized in that, comprise the following steps:
Steps A) backup disk Master boot sector information is to data memory module;
Step B) boot sector and the file system superblock with each subregion is saved in the data memory module.
Described file system superblock log file key message.
Described file key message is a file system type, size, the size of each data block, reference position.
Described steps A) can also comprise the following steps:
Steps A 1) logic magnetic disc of the current system of analysis;
Steps A 2) Globally Unique Identifier and the corresponding logical device name with each logic magnetic disc correspondence is saved in data memory module respectively;
Described steps A 3) the disk Master boot sector information with each logic magnetic disc is saved in the data memory module.
Step B) also comprises the following steps:
Step B1) analyzes the Master boot sector of each logic magnetic disc, infer what subregions;
Step B2) obtain partition boot sector or file system superblock, boot sector and the file system superblock with each subregion is saved in the data memory module then.
Described logic magnetic disc is independent disk or Redundant Array of Independent Disks (RAID).Of the present invention also have a purpose to be, a kind of memory storage data reconstruction method is provided, and it is characterized in that, comprises the following steps:
Steps A ') when BIOS detects data recovering mark position and returns to form for data,, recover magnetic disc main boot record by the information in the memory device key information packet in the baseboard management controller reading of data memory module;
Step B ') information in the memory device key information packet in the reading of data memory module is recovered extended partition boot sector information and each partitioned file system superblock information.
Described steps A ') can also comprise the following steps:
During each the start, BIOS detects the state of data recovering mark position.
The state of described data recovering mark position is provided with by remote I PMI order.
The state of described data recovering mark position by the Long-distance Control server end by IPMI network link order by Network Transmission to long-range terminal computer, be kept in the data memory module by after the baseboard management controller reception.
The state of described data recovering mark position is by local hot key setting.
Described data memory module links to each other with BMC by data bus.
Described data memory module is the FLASH chip.
The invention has the beneficial effects as follows:
1. the present invention proposes a kind of backup and recovery system and method that is independent of the memory device key data of computer-readable storage medium, can be during computer run the critical data of memory disk of intelligence, and after these file system key messages damage, suitable file system key message is returned on the memory storage.Avoided because the problem that virus or user misoperation cause system normally to start, and can significantly reduce and to use data recovery procedures to recover the workload of user's critical data.
2. the backup of memory device key data of the present invention and recovery system with the memory device key data backup to other irrelevant media such as BIOS, hard disk in go, can be not under attack and lose critical data because of BIOS or hard disk, and because BMC that uses and the message exchange order of BIOS are the privatization agreements, thereby further guarantee safety of data when the memory device key data are recovered.
Description of drawings
Fig. 1 is memory device key data backup of the present invention and recovery system structural representation;
Fig. 2 is BIOS backup of the present invention and recovery process flow diagram;
Fig. 3 is a disk Master boot sector structural drawing;
Fig. 4 is a disk partition table list item structural drawing;
Fig. 5 is a memory device key packet storage format structural drawing;
Fig. 6 reads process flow diagram for single hard disk boot sector of the present invention and partition information.
Embodiment
The present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
The present invention utilizes the outband management architecture standard IPMI2.0 of existing main flow to realize the recovery of terminal computer memory storage data, its main need of work is set up the data link of baseboard management controller and BIOS, by carrying out corresponding instruction, realize reliable memory storage data recovery at BIOS.
IPMI (Intelligent Platform Management Interface, IPMI) core is a special chip/controller, also be called processor-server or baseboard management controller (Baseboard Management Controller, BMC).This controller generally is installed on system board or the blade.The IPMI firmware has constituted the basis of independent platform ADMINISTRATION SUBSYSTEM with BMC.During this subsystem work no matter the type of processor, BIOS or operating system or state how, can both provide manageability and monitoring function, even still can carry out recovery operation when system's remainder can not use.
All IPMI functions all send order to BMC and finish, and the instruction of stipulating in the IPMI standard is used in order.When the needs remote access system, the LAN of IPMI goes up serial (Serial overLAN, SOL) change local serial ports direction of transfer in the IPMI conversation procedure, thereby the remote access to urgent management service, supervisor console is provided, and BMC provides remote service by change the direction message that sends serial port on LAN.
(Out-Of-Band is a kind of mode of network management OOB) to outband management, and in the outband management pattern, the Network Management control information transmits at different logic channels with the bearer service information of user network.Outband management has: equipment emergency access passage; Central access control, grading authorized management; Operation log recording; Functions such as fault warning.It is applicable to the not situation when same physical location of system manager and information technoloy equipment, and such network environment comprises all telecom operators and bank and government, the enterprise network of branch offices are arranged.In case equipment failure can't solve (means such as telnet, pcanywhere) by network, the system manager can only arrive the scene and deal with problems.Such network can significantly improve network O﹠M efficient by Outband network management, effectively reduces O﹠M cost simultaneously.
As shown in Figure 1, memory device key data backup of the present invention and recovery system are based on the computer management system that meets IPMI2.0 that BMC is a core, utilize this system to finish memory device key data backup and recovery (mainly being to recover) at data, it comprises Long-distance Control server end 8 and terminal computer 1, and Long-distance Control server end 8 and terminal computer 1 are connected by network.Described Long-distance Control server end 8 and terminal computer 1 all comprise IPMI (IPMI) 2 and baseboard management controller (BMC) 4.
Long-distance Control server end 8 and terminal computer 1 all also comprise band outer network interface 5, be used for connecting by network, to the data recovering mark position that terminal computer 1 sends, terminal computer 1 is received from data recovering mark position and the storage that Long-distance Control server 8 ends send to Long-distance Control server end 8 by band outer network interface 5.
In the IPMI (IPMI) 2 of terminal computer, also comprise Data Update control module 3, be used for by send the IPMI instruction of reading of data recovering mark position 7 to baseboard management controller (BMC) 4, data recovering mark position 7 in the baseboard management controller 4 reading of data memory modules 6, and determine whether from data memory module 6, to read critical data and carry out the memory storage data and recover according to the value of this zone bit;
Described terminal computer 1 also comprises data memory module 6, and this module links to each other with BMC by data bus, is used to store critical data.
Preferably, data memory module 6 is the FLASH chip.The FLASH chip links to each other with baseboard management controller 4 by data bus.
At first, Long-distance Control server end 8 is connected by being with outer network interface 5 to set up network with terminal computer 1.
Long-distance Control server end 8 can be connected to terminal computer 1 by Internet (Internet) or LAN (Local Area Network) (Intranet).The data recovering mark position 7 that band outer network interface 5 in the terminal computer 1 receives from Long-distance Control server 8.
Then, Long-distance Control server end 8 is transferred to long-range terminal computer 1 by network with data recovering mark position 7 by IPMI network link order, is kept in the data memory module 6 after being received by baseboard management controller (BMC) 4.
In the IPMI command set, having a command set is OEM command, is used for the order that OEM vendor is provided with for the function based on IPMI exploitation oneself, the IPMI network link order of embodiment of the invention definition, and the instruction name is called:
OEM_SETUPDATE_FLAG_REQUEST (TIME_STAMP), and the corresponding command is in the baseboard management controller 4 of remote server::
OEM_SETUPDATE_FLAG_RESPONSE (TIME_STAMP), rreturn value is 0 or 1, shows success or failure
When terminal computer 1 starts, starting (boot) stage, BIOS sends IPMI by Data Update control module 3 to baseboard management controller 4 and reads the sign instruction, and command format is:
OEM_UPDATE_HDKEYDATA_REQUEST (), instruction is transferred in the task queue in the baseboard management controller 4 by lpc bus, wait-for-response.Data recovering mark position 7 in the baseboard management controller 4 reading of data memory modules 6, by
OEM_UPDATE_HDKEYDATA_RESPONSE () order, data recovering mark position 7 in the reading of data memory module 6, and return to Data Update control module 3.
Fig. 2 is BIOS backup of the present invention and recovery process flow diagram, as shown in Figure 2, and after system start-up, BIOS reading of data recovering mark position 7, if data recovering mark position 7 is 1, then carry out primary storage device critical data rejuvenation, the critical data of backup in the data memory module 6 is recovered.After the memory storage data were recovered to finish, BIOS sent IPMI sign clear instruction to baseboard management controller 4, and the form of this instruction is:
OEM_update_flag_clear_request (), baseboard management controller 4 is accepted this order, carries out OEM_update_flag_clear_response () clear instruction zone bit, and returns execution result.Memory storage rejuvenation is finished in data recovering mark position 7 in the memory module that clears data 6.
If data recovering mark position 7 is 0, then carry out primary storage device critical data backup procedure, critical data is backed up.
Be that example is elaborated to memory device key data backup of the present invention and rejuvenation below with the hard disk.
The concrete steps of memory device key data backup process of the present invention are as follows:
S1) backup disk Master boot sector information is to data memory module 6.
S11) what logic magnetic discs analyze current system has, and this step is realized by the BIOS prior function, do not repeat them here;
S12) with Globally Unique Identifier (the Globally Unique Identifier of each logic magnetic disc correspondence, GUID) and corresponding logical device name be saved in the data memory module respectively, BIOS has the function of the logical device name of searching logic magnetic disc and correspondence thereof, does not repeat them here;
S13) the disk Master boot sector information with each logic magnetic disc is saved in the data memory module.
512 bytes of physical disk beginning are called Master boot sector, and by analyzing Master boot sector, what subregions just can know has in the disk.
A disk has only a Master boot sector.
Master boot sector is made up of 3 parts, is respectively that (Master Boot Record is MBR) with disk partition table (DPT) and magic number (0x55AA) for Main Boot Record.Saved system guidance code among the MBR, the partition information of in store disk in the partition table.Just can know that by analyzing partition table this disk has several subregions, what divisional type is.
S2) boot sector and the file system superblock with each subregion is saved in the data memory module.
S21) analyze the Master boot sector of each logic magnetic disc, infer what subregions;
Fig. 3 is a disk Master boot sector structural drawing, and shown in 3, the disk Master boot sector is made up of following 4 parts:
One, main bootstrap program (offset address 0000H--0088H), it is responsible for loading from active partition, and the operational system boot;
Two, the error message data field, offset address 0089H--00E1H is an error message, 00E2H--01BDH is 0 byte entirely.
Three, and partition table (Disk Partition Table DPT) contains 4 subregion items, offset address 01BEH--01FDH, and long 16 bytes of each subregion list item, totally 64 bytes are subregion item 1, subregion item 2, subregion item 3, subregion item 4.
Four, the end mark word, 2 byte values of offset address 01FE--01FF are end mark 55AA, if this sign error system just can not start.
MBR information takies 512 bytes altogether, and wherein, 64 bytes of offset address 01BEH--01FDH are 4 partition information tables.Partition table is positioned at 0 cylinder, 0 magnetic head, 1 sector, first partition table that begins with displacement 1BEH is as first-in-chain(FIC), indicate the physical location (xx cylinder, 0 magnetic head, 1 sector) of next partition table by the link list item in the table, same displacement 1BEH place in the sector of this position, in store the 2nd partition table, and the like, until the physical location (yy cylinder, 0 magnetic head, 1 sector) that points to last partition table.The project of each partition table takies 16 bytes, disk partition table list item structure as shown in Figure 4, the implication of concrete byte is as follows:
The 1st byte representative bootstrapping sign if the value of this byte is 80H, represents that then this subregion is active partition; If the value of this byte is 00H, represent that then this subregion is an inactive partition;
2nd, 3,4 bytes are represented initial No.1, the start sector number, start cylinder number of this subregion respectively;
The divisional type symbol of the 5th this subregion of byte representation.
The partition table of a disk has 4, because a disk has only 4 subregion list items, therefore a disk can only have 4 main partitions at most.When setting up more than 4 subregions, needs just need set up an extended partition earlier on a disk.And on an extended partition 4 subregions can only be arranged also, therefore when needs are divided a plurality of subregion, have and need on this main extended partition, divide time extended partition again, and then on inferior extended partition, divide more logical partition.When we need divide a plurality of subregion, the foundation of the circulation recurrence that comes to this and division subregion.
Therefore, judge when what subregions a disk has, need the leader record and the partition table of main boot partition of reading of recurrence and expansion boot partition.
S22) obtain partition boot sector or file system superblock, boot sector and the file system superblock with each subregion is saved in the data memory module then.
The boot sector of subregion is exactly 512 bytes of each subregion, reads 512 bytes of these subregions by each partitioned method on the traversal disk and obtains each partition boot sector, and be saved in the data memory module.
The size of file system superblock is 1024 bytes, and reference position is the 1024th byte place of subregion.Therefore, read 2048 bytes of each subregion, just can obtain the boot sector and the file system superblock of subregion, then, be saved in the data memory module.
Described file system superblock has been described the key property that is installed in the file system on the current subregion, comprises file system type, size, the size of each data block, information such as reference position.
If file system superblock information is damaged,, also can increase the workload that data are recovered greatly even the disk partition table does not damage.As long as the file system superblock is excellent, just can infer the position and the content of other parts of file system thus.So, the file system superblock also must be backed up.
Described logic magnetic disc is independent disk or Redundant Array of Independent Disks (RAID).
Fig. 6 reads process flow diagram for single hard disk boot sector of the present invention and partition information, and as shown in Figure 6, single hard disk boot sector of the present invention and partition information process of reading are as follows:
S211) read the partition table of Master boot sector;
S212) according to the 5th byte of a partition table, read divisional type;
Wherein, 00H represents that this subregion do not use; 06H and 0BH represent the main partition; 05H and 0FH represent extended partition.
S213), then in data memory module, write down the start-stop position file system superblock information of this subregion if divisional type is the main partition; Otherwise, continue;
The start position information of this subregion can obtain from the 2nd, 3,4 bytes of partition table;
The size of file system superblock is 1024 bytes, and reference position is the 1024th byte place of subregion.
S214) if divisional type is an extended partition, then in data memory module, write down this partitioned file system superblock information, and in data memory module, preserve all boot sectors of extended partition, in data memory module, write down the reference position and the number of each subregion according to the partition information table of partition boot sector;
The boot sector of subregion is exactly 512 bytes of each subregion, reads 512 bytes of these subregions by each partitioned method on the traversal disk and obtains each partition boot sector.The size of file system superblock is 1024 bytes, and reference position is the 1024th byte place of subregion.
From first subregion to the, four subregions, repeat above-mentioned steps 1211～1214, the boot sector and the partition table that read Master boot sector and expansion boot partition of recurrence, and obtain the number of all subregions of all hard disks on the computing machine and each subregion start-stop position on hard disk separately.
Fig. 5 is a memory device key packet storage format structural drawing, and as shown in Figure 5, this packet is made of following data:
Data packet length (4byte); Packet timestamp (4byte); Hard disk GUID (8byte); Hard disk logical device name (16byte); Master boot sector information (512byte); (N * 512byte), the N value is determined by the extended partition number extended partition boot sector information; Each partitioned file system superblock information (M * (1024+4) byte), the M value is determined by the subregion number.
Wherein, data packet length is used to preserve the total length of this packet; The packet timestamp is used to preserve the Time Created of this packet; Hard disk GUID and hard disk logical device name are used for the GUID and the corresponding hard disk logical device name of each hard disk of saved system; Master boot sector information is used to preserve the disk Master boot sector record of each hard disk; Extended partition boot sector information is used to preserve the partition boot sector record of the extended partition of each hard disk; Each partitioned file system superblock information be used to preserve each subregion the key property of file system, comprise file system type, size, the size of each data block, information such as reference position.
The concrete steps of memory device key data recovery procedure of the present invention are as follows:
R1), recover disk Master boot sector record according to the information in the memory device key information packet in the data memory module.
R11) according to the hard disk GUID (8byte) in the memory device key information packet in the data memory module; Hard disk logical device name (16byte); Master boot sector information (512byte) learns that the computer system that needs to recover has what disks or RAID, and according to the GUID of disk model or RAID correspondence Master boot sector information is returned on the corresponding disk.
R2), recover extended partition boot sector information and each partitioned file system superblock information according to the information in the memory device key information packet in the data memory module.
R21) (N * 512byte) and each partitioned file system superblock information (M * (1024+4) byte) will all return on the corresponding disk or RAID corresponding to extended partition boot sector information (comprising :) the file system superblock information of each subregion of each disk or RAID according to the extended partition boot sector information in the memory device key information packet in the data memory module.
The triggering of memory device key data recovery procedure is by the mode of using hot key in this locality or the mode that data recovering mark position is set by remote I PMI order.
Preferably, data memory module 6 is the FLASH chip.The FLASH chip links to each other with baseboard management controller 4 by data bus.
The advantage of using the FLASH chip is the memory device key data to be backuped in other irrelevant media such as same BIOS, hard disk go, can be not under attack and lose critical data because of BIOS or memory storage, and, further guarantee safety of data because the message exchange order of BMC and BIOS is the privatization agreement.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (18)
1. memory storage data backup and recovery system, comprise Long-distance Control server end (8) and terminal computer (1), Long-distance Control server end (8) is connected by network with terminal computer (1), Long-distance Control server end (8) and terminal computer (1) all comprise IPMI (2), baseboard management controller (4), band outer network interface (5) is characterized in that:
In the IPMI of described terminal computer (2), also comprise Data Update control module (3);
Data Update control module (3) is used for by to baseboard management controller (4) reading of data recovering mark position (7), and determines whether to recover the memory storage data according to the value of described data recovering mark position (7);
Described terminal computer (1) also comprises data memory module (6), is used for store storage device data; And after the memory storage data are recovered to finish, described data recovering mark position (7) is removed by Data Update control module (3).
2. memory storage data backup according to claim 1 and recovery system is characterized in that, described data memory module (6) links to each other with baseboard management controller (4) by data bus.
3. memory storage data backup according to claim 1 and recovery system is characterized in that, described network is Internet or LAN (Local Area Network).
4. memory storage data backup according to claim 1 and 2 and recovery system is characterized in that, described data memory module (6) is the FLASH chip.
5. a memory storage data back up method is characterized in that, comprises the following steps:
Steps A) backup disk Master boot sector information is to data memory module (6);
Step B) boot sector and the file system superblock with each subregion is saved in the data memory module (6).
6. memory storage data back up method according to claim 5 is characterized in that, described file system superblock log file key message.
7. memory storage data back up method according to claim 6 is characterized in that, described file key message is a file system type, size, the size of each data block, reference position.
8. memory storage data back up method according to claim 5 is characterized in that steps A) also comprise the following steps:
Steps A 1) logic magnetic disc of the current system of analysis;
Steps A 2) Globally Unique Identifier and the logical device name with each logic magnetic disc correspondence is saved in data memory module (6) respectively;
Steps A 3) the disk Master boot sector information with each logic magnetic disc is saved in data memory module (6) lining.
9. memory storage data back up method according to claim 5 is characterized in that step B) also comprise the following steps:
Step B1) analyzes the Master boot sector of each logic magnetic disc, infer what subregions;
Step B2) obtain partition boot sector or file system superblock, boot sector and the file system superblock with each subregion is saved in the data memory module (6) then.
10. according to Claim 8 or 9 described memory storage data back up method, it is characterized in that described logic magnetic disc is independent disk or Redundant Array of Independent Disks (RAID).
11., it is characterized in that described data memory module (6) is the FLASH chip according to claim 5 or 8 or 9 described memory device key data back up method.
12. a memory storage data reconstruction method is characterized in that, comprises the following steps:
Steps A ') BIOS detects data recovering mark position (7) when returning to form for data, by the information in the memory device key information packet in baseboard management controller (4) the reading of data memory module (6), recovers magnetic disc main boot record;
Step B ') information in the memory device key information packet in the reading of data memory module (6) is recovered extended partition boot sector information and each partitioned file system superblock information.
13. memory storage data reconstruction method according to claim 12 is characterized in that described steps A also comprises the following steps:
During each the start, BIOS detects the state of data recovering mark positions (7).
14., it is characterized in that the state of described data recovering mark position (7) is provided with by remote I PMI order according to claim 12 or 13 described memory storage data reconstruction methods.
15. memory storage data reconstruction method according to claim 14, it is characterized in that, the state of described data recovering mark position (7) by Long-distance Control server end (8) by IPMI network link order by Network Transmission to long-range terminal computer (1), be kept in the data memory module (6) by after baseboard management controller (4) reception.
16., it is characterized in that the state of described data recovering mark position (7) is by local hot key setting according to claim 12 or 13 described memory storage data reconstruction methods.
17. memory storage data reconstruction method according to claim 12 is characterized in that, described data memory module (6) links to each other with baseboard management controller (4) by data bus.
18. memory storage data reconstruction method according to claim 12 is characterized in that, described data memory module (6) is the FLASH chip.
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| CN102693283A (en) * | 2012-05-07 | 2012-09-26 | 深圳市共进电子股份有限公司 | Data partition storage method and system boot method of embedded system |
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| US20020147941A1 (en) * | 2001-04-05 | 2002-10-10 | Robert Gentile | Network based BIOS recovery method |
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