CN1928833A - Method for applying real time backup of single hardware data - Google Patents
Method for applying real time backup of single hardware data Download PDFInfo
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- CN1928833A CN1928833A CN 200510102735 CN200510102735A CN1928833A CN 1928833 A CN1928833 A CN 1928833A CN 200510102735 CN200510102735 CN 200510102735 CN 200510102735 A CN200510102735 A CN 200510102735A CN 1928833 A CN1928833 A CN 1928833A
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Abstract
The provided single HD data real-time backup processing method comprises: dividing the HD into two unit blocks by software; when backup, processing data by same software to store in the stripe block of former unit block respectively; or dividing the HD into multiple unit blocks, and storing data in the strip blocks of two selected unit blocks.
Description
Technical field
The invention relates to a kind of method for applying real time backup of single hardware data, especially refer to single hardware is divided into two or more units block (unit block) by software, when data are backed up in realtime when storing action doing, then these data are located by the banded block (stripe block) that this software processes is stored in the not commensurate block (unit block) of same hard disk respectively simultaneously, to finish data real time backup.
Background technology
In the storage facilities field, the application of array is quite general, and wherein, RAID1 is a kind of quite easy data real time backup technology, and the technology of RAID1 is that each data is write two hard disks and storage simultaneously; If when in one of them hard disk data damage being arranged, then another hard disk can provide data to be used in the user immediately, like this situation (seeing also shown in Figure 1) with regard to there not being data to obtain; This this storage data technology requirement is to have two or more hard disks just can do the implementation of this technology, but such demand is thought to be unworthy use to the user that the existing institute of some condition limits (as: cost is considered or system itself has only the condition of single hardware or the like);
Moreover, the capacity of hard disk has the trend of doing bigger and bigger now, when the capacity of hard disk increases, the probability of the sector damage of its this hard disk also relatively can be more and more higher, and the bad sector (bad sector) of damage detects if be operated system when formatting hard disk, the general operation system can get rid of this detected bad sector (bad sector) need not, if bad sector (bad sector) be data stored in operating system reads hard disk the time, then the problem lost of the data in the hard disk will produce.
Summary of the invention
Fundamental purpose of the present invention is by software single hardware to be divided into two or more units block (unit block), back up in realtime when storing action doing when data, these data are located by the banded block (stripe block) that this software processes is stored in different unit blocks (unit block) in the lump respectively.
Another object of the present invention be for solving if having only under the condition of single hard disk, and think that data back up in realtime, to prevent that data damage from but not having the situation that Backup Data can read and taking place.
Based on above-mentioned purpose, a kind of method for applying real time backup of single hardware data provided by the present invention, by a software single hardware is divided into two unit blocks (unit block), then data will be done and back up in realtime when storing action, its these data can be passed through this software processes simultaneously, and the banded block (stripe block) that is stored in simultaneously respectively among the not commensurate block (unit block) of same hard disk locates, to finish the data instant backup; This software is divided into a plurality of units block (unit block) with single hardware, then data will be done and back up in realtime when storing action, the banded block (stripeblock) that its this software can be chosen among two unit blocks (unit block) that two unit blocks (unit block) are stored in data to have chosen is simultaneously in regular turn located, to finish the data instant backup.
In conjunction with the following examples and accompanying drawing the present invention is described further.
Description of drawings
Fig. 1 is the synoptic diagram of the known data of backing up in realtime;
Fig. 2 is the back up in realtime synoptic diagram of an embodiment of data of the present invention;
Fig. 3 is the back up in realtime synoptic diagram of another enforcement of data of the present invention.
Among the figure:
10,11,12 data, 20 hard disks
21,22,23,24,25,26 unit blocks
211,221 banded block 212,222 banded blocks
Embodiment
See also shown in Figure 2, by a software this hard disk 20 is divided into two unit blocks 21,22, to do when data 10 and to back up in realtime when storing action, then these data 10 are by this software processes, be stored in the not commensurate block (unit block) 21 of same hard disk 20 in the lump respectively, 22 banded block (stripeblock) 211,221 places, to finish the action that data 10 are backed up in realtime, then if when having next record data 11 will do data real time backup too, the processing by software and store not commensurate's block (unit block) 21 simultaneously equally, 22 banded block (stripe block), 212,222 places get final product.
See also shown in Figure 3, if this hard disk 20 is divided into a plurality of units block (unit block) 21 by software, 22,23,24,25 and 26 o'clock, its this software can be chosen two unit blocks (unit block) 21 in regular turn, 22 as the storage usefulness of backing up in realtime, to do when data 10 and to back up in realtime when storing action, then these data 10 also will be passed through this software processes, are stored in the banded block (stripe block) 211 of the not commensurate block (unitblock) 21,22 of same hard disk 20 in the lump respectively, 221 places, to finish the action of backing up in realtime of data 10, when then next record data 11 will be done the action of backing up in realtime, similarly these data 11 were by this software processes, be stored in the not commensurate block (unit block) 21 of same hard disk 20 in the lump respectively, 22 banded block (stripe block), 212,222 places are to finish the action of backing up in realtime of data 11.If this unit block (unit block) 21,22 use and to have reached when saturated, and then software can choose in regular turn in addition that two unit blocks (unit block) 23,24 provide other action that strokes data 12 are done to back up in realtime, reached saturated up to unit block (unit block) 23,24 uses.
By that analogy, as long as every when the action that new data will do and back up in realtime is arranged, all comply with above-mentioned processing mode and carry out data real time backup.
When doing data read, banded block (stripeblock) reading of data of an earlier selected unit block (unit block), if the data of this banded block (stripe block) are damaged, can be from banded block (stripe block) reading of data of the unit block (unit block) of backup.With Fig. 2 is example, want reading of data Datal, earlier selected banded block (stripe block) 211 reading of data are damaged as if the data of this banded block (stripe block), again from corresponding backup unit block (stripe block) 221 reading of data.
By the above detailed description of preferred embodiments, be that hope can be known description feature of the present invention and spirit more, and be not to come protection scope of the present invention is limited with above-mentioned disclosed preferred embodiment.On the contrary, its objective is hope can contain the distortion of various changes and tool equivalence all belong to the present invention the scope protected.
Claims (4)
1. a method for applying real time backup of single hardware data, this application process comprises:
Two unit blocks are divided in the storage area of one hard disk;
When writing data, write respectively in two unit blocks to this hard disk; And
Read rule selectively from two unit block reading of data according to one.
2. method for applying real time backup of single hardware data as claimed in claim 1 further comprises:
A plurality of units block is divided in the storage area of this hard disk;
Choose two unit blocks in regular turn and store usefulness as data real time backup; And
Do when storing action when data, then be stored in the banded block place among two unit blocks having chosen in the lump respectively simultaneously, to finish data real time backup.
3. method for applying real time backup of single hardware data as claimed in claim 2 wherein if reached when saturated via two selected unit blocks of software, is chosen in addition two unit blocks in regular turn and is stored as the next record data real time backup and use.
4. method for applying real time backup of single hardware data as claimed in claim 1, wherein this reads rule and is, if during the stored data damage of one of them unit block, then reads from another unit block automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510102735 CN1928833A (en) | 2005-09-09 | 2005-09-09 | Method for applying real time backup of single hardware data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510102735 CN1928833A (en) | 2005-09-09 | 2005-09-09 | Method for applying real time backup of single hardware data |
Publications (1)
| Publication Number | Publication Date |
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| CN1928833A true CN1928833A (en) | 2007-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200510102735 Pending CN1928833A (en) | 2005-09-09 | 2005-09-09 | Method for applying real time backup of single hardware data |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8281095B2 (en) | 2009-03-13 | 2012-10-02 | Prolific Technology Inc. | Data storage system and backup method thereof |
| CN101539891B (en) * | 2008-03-17 | 2012-12-05 | 锐迪科微电子（上海）有限公司 | Embedded type flash memory, storage system and method for power fail safeguard of data |
-
2005
- 2005-09-09 CN CN 200510102735 patent/CN1928833A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539891B (en) * | 2008-03-17 | 2012-12-05 | 锐迪科微电子（上海）有限公司 | Embedded type flash memory, storage system and method for power fail safeguard of data |
| US8281095B2 (en) | 2009-03-13 | 2012-10-02 | Prolific Technology Inc. | Data storage system and backup method thereof |
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