CN113741794A - SMR disk array reconstruction method, system, device and computer medium - Google Patents
SMR disk array reconstruction method, system, device and computer medium Download PDFInfo
- Publication number
- CN113741794A CN113741794A CN202010479063.5A CN202010479063A CN113741794A CN 113741794 A CN113741794 A CN 113741794A CN 202010479063 A CN202010479063 A CN 202010479063A CN 113741794 A CN113741794 A CN 113741794A
- Authority
- CN
- China
- Prior art keywords
- reconstruction
- array
- smr
- area
- array reconstruction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 61
- 238000013507 mapping Methods 0.000 claims description 83
- 238000004590 computer program Methods 0.000 claims description 46
- 230000000875 corresponding effect Effects 0.000 description 43
- 238000005516 engineering process Methods 0.000 description 12
- 238000004891 communication Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000012512 characterization method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0604—Improving or facilitating administration, e.g. storage management
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0629—Configuration or reconfiguration of storage systems
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0638—Organizing or formatting or addressing of data
- G06F3/0644—Management of space entities, e.g. partitions, extents, pools
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
The application discloses a method, a system, equipment and a computer medium for reconstructing an SMR disk array, which are used for acquiring reconstruction information of a target SMR disk, wherein the reconstruction information represents whether each SMR area in the target SMR disk is reconstructed or not; judging whether to carry out array reconstruction on the target SMR disk according to reconstruction information of the target SMR disk; and if the array reconstruction is carried out on the target SMR disk, resetting a write pointer for carrying out the array reconstruction in the target SMR disk, and carrying out the array reconstruction operation. In the application, when the array reconstruction is required to be carried out on the target SMR disk, the writing pointer for carrying out the array reconstruction in the target SMR disk is reset, so that the position of the writing pointer for carrying out the array reconstruction is determined as the position of the beginning of the writing pointer, and the position is fixed, the position of the writing pointer can be ensured to be obtained certainly in the array reconstruction process, the position loss of the writing pointer is avoided, and the success rate of the array reconstruction of the SMR disk can be ensured.
Description
Technical Field
The present application relates to the field of storage technologies, and in particular, to a method, a system, a device, and a computer medium for reconstructing an SMR disk array.
Background
SMR disks (Shingled Magnetic Recording) are a type of high-capacity Magnetic disks employing a novel Magnetic storage technology. SMR disks partially overlap data tracks on the disks, just like tiles on a roof, a technique known as shingled magnetic recording. This technique varies very slightly in the manufacturing process, but can greatly increase the disk storage density. In the current world with the rapid increase of data volume, the SMR technology can effectively reduce the disk storage cost per unit capacity, and is a development trend of future high-density disk storage technology.
Although the SMR disk uses shingled recording to obtain higher storage areal density, larger disk capacity, and lower price per unit capacity by partially overlapping tracks in sequence, while obtaining this benefit, the SMR disk also puts some limitations on upper layer applications, including that the SMR disk can only write sequentially, and does not support random writing, thereby causing reconstruction failure during array reconstruction of the SMR disk.
In summary, how to improve the success rate of SMR disk array reconstruction is a problem to be solved by those skilled in the art.
Disclosure of Invention
The application aims to provide an SMR disk array reconstruction method, which can solve the technical problem of improving the success rate of SMR disk array reconstruction to a certain extent. The application also provides a SMR disk array reconstruction system, a device and a computer readable storage medium.
In order to achieve the above purpose, the present application provides the following technical solutions:
a method of SMR disk array reconstruction, comprising:
acquiring reconstruction information of a target SMR disk, wherein the reconstruction information represents whether each SMR area in the target SMR disk is reconstructed or not;
judging whether to perform array reconstruction on the target SMR disk according to the reconstruction information of the target SMR disk;
and if the target SMR disk is subjected to array reconstruction, resetting a write pointer for performing array reconstruction in the target SMR disk, and performing array reconstruction operation.
Preferably, the type of the reconstruction information includes a bit mapping table, mapping bits of the bit mapping table correspond to the SMR regions one to one, and when the information on the mapping bits is a first bit mapping value, the SMR regions corresponding to the mapping bits are represented to be not reconstructed; and when the information on the mapping bit is a second bit mapping value, representing the SMR region reconstruction corresponding to the mapping bit.
Preferably, the resetting a write pointer in the target SMR disk for array rebuilding and performing an array rebuilding operation includes:
taking an SMR region corresponding to the information representing the reconstruction as an array reconstruction region;
and resetting a write pointer of the array reconstruction area, and performing array reconstruction operation on the array reconstruction area.
Preferably, the SMR region corresponding to the information characterizing the reconstruction is used as the array reconstruction region; before resetting the write pointer of the array reconstruction area, the method further includes:
determining a redundant SMR area forming a redundant array with the array reconstruction area;
judging whether the redundant SMR areas are full;
if the redundant SMR areas are all full, the step of resetting the write pointer of the array rebuilding area is executed.
Preferably, the SMR region corresponding to the information characterizing the reconstruction is used as the array reconstruction region; before resetting the write pointer of the array reconstruction area, the method further includes:
determining a redundant SMR area forming a redundant array with the array reconstruction area;
judging whether the redundant SMR areas are empty or not;
if the redundant SMR areas are all empty, skipping array reconstruction operation on the array reconstruction area;
and if the redundant SMR areas are not all empty and an area which is executing the write operation exists in the redundant SMR areas, waiting for a first time length and then executing the step of resetting the write pointer of the array rebuilding area.
Preferably, before resetting the write pointer of the array reconstruction area, the method further includes:
judging whether the array reconstruction area is empty or not;
if the array reconstruction area is not empty, resetting the array reconstruction area, and then executing the step of resetting the write pointer of the array reconstruction area.
Preferably, after the performing the array reconstruction operation on the array reconstruction region, the method further includes:
judging whether the reconstruction of the array reconstruction region is successful;
if the array reconstruction region is not successfully reconstructed, accumulating the real-time reconstruction times of the array reconstruction region, and judging whether the real-time reconstruction times are smaller than the preset reconstruction times;
if the real-time reconstruction times are smaller than the preset reconstruction times, returning to the step of executing the array reconstruction operation on the array reconstruction area;
and if the real-time reconstruction times are larger than or equal to the preset reconstruction times, skipping the array reconstruction operation of the array reconstruction area.
Preferably, after the performing the array reconstruction operation on the array reconstruction region, the method further includes:
obtaining an array reconstruction result of the array reconstruction region;
if the array reconstruction result represents that the reconstruction of the array reconstruction area is successful, switching the information on the mapping bits corresponding to the array reconstruction area from the second bit mapping value to the first bit mapping value in the reconstruction information of the target SMR disk;
and if the array reconstruction result represents that the reconstruction of the array reconstruction area fails, keeping the information on the mapping bit corresponding to the array reconstruction area as the second bit mapping value in the reconstruction information of the target SMR disk.
An SMR disk array reconstruction system comprising:
the device comprises a first acquisition module, a second acquisition module and a third acquisition module, wherein the first acquisition module is used for acquiring reconstruction information of a target SMR disk, and the reconstruction information represents whether each SMR area in the target SMR disk is reconstructed or not;
the first judgment module is used for judging whether to carry out array reconstruction on the target SMR disk according to the reconstruction information of the target SMR disk;
and the first execution module is used for resetting a write pointer for array reconstruction in the target SMR disk and performing array reconstruction operation when the array reconstruction is performed on the target SMR disk.
An SMR disk array reconstruction apparatus comprising:
a memory for storing a computer program;
a processor for implementing the steps of the SMR disk array rebuilding method as described above when the computer program is executed.
A computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of any of the SMR disk array rebuild methods described above.
According to the SMR disk array reconstruction method, the reconstruction information of the target SMR disk is obtained, and the reconstruction information represents whether each SMR area in the target SMR disk is reconstructed or not; judging whether to carry out array reconstruction on the target SMR disk according to reconstruction information of the target SMR disk; and if the array reconstruction is carried out on the target SMR disk, resetting a write pointer for carrying out the array reconstruction in the target SMR disk, and carrying out the array reconstruction operation. In the application, whether the array reconstruction is carried out on the target SMR disk can be quickly judged according to the reconstruction information of the target SMR disk, and when the array reconstruction is carried out on the target SMR disk, the writing pointer for carrying out the array reconstruction in the target SMR disk can be reset, so that the position of the writing pointer for carrying out the array reconstruction is determined as the position of the beginning of the writing pointer, the position is fixed, the position which can be obtained to the writing pointer in the array reconstruction process can be ensured, the position loss of the writing pointer is avoided, and the success rate of the array reconstruction of the SMR disk can be ensured. The SMR disk array reconstruction system, the SMR disk array reconstruction equipment and the computer readable storage medium solve the corresponding technical problems.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a first flowchart of a method for reconstructing an SMR disk array according to an embodiment of the present application;
FIG. 2 is a second flowchart of a SMR disk array rebuilding method provided by the embodiment of the present application;
FIG. 3 is a schematic structural diagram of an SMR disk array reconstruction system according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of an SMR disk array reconstruction apparatus according to an embodiment of the present application;
fig. 5 is another schematic structural diagram of an SMR disk array reconstruction apparatus according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
SMR disks (Shingled Magnetic Recording) are a type of high-capacity Magnetic disks employing a novel Magnetic storage technology. SMR disks partially overlap data tracks on the disks, just like tiles on a roof, a technique known as shingled magnetic recording. This technique varies very slightly in the manufacturing process, but can greatly increase the disk storage density. In the current world with the rapid increase of data volume, the SMR technology can effectively reduce the disk storage cost per unit capacity, and is a development trend of future high-density disk storage technology. SMR disks utilize disks where the read head width may be smaller than the write head width, and data is written by partially overlapping the previous track. While leaving sufficient space for a narrower read head to read the previous track. The result of shingled writing is a narrow track that is left for reading and, finally, a wider write track for writing, which will cover the width of several read tracks. Compared with the traditional magnetic disk, the SMR disk accommodates more magnetic tracks in the same area through shingled writing, so that the storage surface density is improved, and the cost of the unit storage capacity of the magnetic disk is reduced. Although the SMR Disk uses shingled recording to obtain higher storage areal density, larger Disk capacity, and lower price per unit capacity by partially overlapping tracks in sequence, while obtaining this benefit, the SMR Disk also puts some limitations on upper layer applications, including that the SMR Disk can only write sequentially and does not support random writing, so that during the array reconstruction of the SMR Disk, reconstruction failure occurs, for example, after the array reconstruction of the SMR Disk is performed by applying an array reconstruction technique of a HDD (Hard Disk Drive) Hard Disk, when the reconstruction of a normal stripe portion on the SMR Disk is completed, the SMR Disk is suddenly powered off and powered on, a reconstructed stripe is failed due to wirelessly obtaining a write pointer. The SMR disk array reconstruction method provided by the application can improve the success rate of SMR disk array reconstruction. It should be noted that the type of the array reconstruction technique of the HDD hard disk can be determined according to actual needs, such as reconstruction, local reconstruction, copy reconstruction, etc.; the reconstruction is to read other data disks to calculate check values to write a reconstruction disk, and the array has redundancy again after the reconstruction is completed; local reconstruction means that a disk is pulled out of a normal LUN (Logical Unit Number) or a link is unstable, a link of a certain hard disk is flashed, so that the LUN is degraded, and a service traffic exists on the LUN, at this time, a system records a written stripe, marks the pulled hard disk in the LUN in a Missing state, reconstructs the written stripe in a certain period of time after the hard disk is reinserted within a certain period of time or the hard disk link is recovered, so as to achieve the purpose of reusing the hard disk, and if the hard disk is pulled out or no service traffic exists during a failure, local reconstruction is not started; the local reconstruction only aims at redundant RAID LUNs, and the local reconstruction can occur on each data disk of an array in a normal state, a reconstructed double keyboard, a copied reconstructed double keyboard and a reconstructed disk; the NV-RAM (Nonvolatile Random Access Memory) is a part of Memory space drawn from the array write Cache and is used for recording local reconstruction information and write abnormal recovery information of the array; the copy reconstruction refers to a RAID LUN in an original normal state, the RAID LUN becomes a degraded state due to a read-write error, a missing disk is absent, and a disk is added for reconstruction when a hot spare disk exists, that is, the copy reconstruction is performed, and in the reconstruction process, data is directly copied from a source disk (a failed data disk) to a reconstructed disk. When the data of the source disk cannot be read, the stripe is reconstructed according to a reconstruction mode, the source disk is kicked off after reconstruction is completed, the RAID LUN is changed into a normal state, and compared with reconstruction, the number of times of reading other data disks to carry out XOR can be reduced by a copying reconstruction mode.
Referring to fig. 1, fig. 1 is a first flowchart of a method for reconstructing an SMR disk array according to an embodiment of the present application.
The method for reconstructing the SMR disk array provided by the embodiment of the application can comprise the following steps:
step S101: and acquiring reconstruction information of the target SMR disk, wherein the reconstruction information represents whether each SMR area in the target SMR disk is reconstructed or not.
Step S102: judging whether the reconstruction information has information representing to be reconstructed or not; if the reconstruction information includes information indicating reconstruction, step S103 is executed, and if the reconstruction information does not include information indicating reconstruction, step S105 is executed.
In practical application, in order to conveniently judge whether to perform array reconstruction on a target SMR disk, whether to perform array reconstruction on the target SMR disk may be judged by recording reconstruction information, and the reconstruction information represents whether each SMR area in the target SMR disk is reconstructed, that is, the reconstruction information of the target SMR may be acquired, the reconstruction information represents whether each SMR area in the target SMR disk is reconstructed, and whether to perform array reconstruction on the target SMR disk is judged according to the reconstruction information of the target SMR disk; for example, whether the information for reconstructing the representation exists in the reconstruction information is judged, and if the information for reconstructing the representation exists in the reconstruction information, the SMR disk is judged to be reconstructed; and if the information for representing the reconstruction does not exist in the reconstruction information, judging not to reconstruct the SMR disk.
In practical application, the method for determining whether each SMR area is reconstructed may be determined according to actual needs, for example, whether a target SMR disk has a fault may be determined, if so, it is determined that array reconstruction of the target SMR disk is required, whether data in the target SMR disk is complete may be determined, and if not, it is determined that array reconstruction of the target SMR disk is required.
Step S103: the SMR disk is determined to be rebuilt, and step S104 is performed.
Step S104: and resetting a write pointer for array reconstruction in the target SMR disk, and performing array reconstruction operation.
Step S105: the SMR disk is decided not to be rebuilt.
According to the SMR disk array reconstruction method, the reconstruction information of the target SMR disk is obtained, and the reconstruction information represents whether each SMR area in the target SMR disk is reconstructed or not; judging whether to carry out array reconstruction on the target SMR disk according to reconstruction information of the target SMR disk; and if the array reconstruction is carried out on the target SMR disk, resetting a write pointer for carrying out the array reconstruction in the target SMR disk, and carrying out the array reconstruction operation. In the application, whether the array reconstruction is carried out on the target SMR disk can be quickly judged according to the reconstruction information of the target SMR disk, and when the array reconstruction is carried out on the target SMR disk, the writing pointer for carrying out the array reconstruction in the target SMR disk can be reset, so that the position of the writing pointer for carrying out the array reconstruction is determined as the position of the beginning of the writing pointer, the position is fixed, the position which can be obtained to the writing pointer in the array reconstruction process can be ensured, the position loss of the writing pointer is avoided, and the success rate of the array reconstruction of the SMR disk can be ensured.
In the method for reconstructing an SMR disk array provided in an embodiment of the present application, a type of reconstruction information may be determined according to actual needs, for example, the reconstruction information may be information about whether an SMR disk recorded in a text form is reconstructed or not, in this embodiment, for convenience of operation, the type of reconstruction information may include a bit mapping table, mapping bits of the bit mapping table correspond to SMR regions one to one, and information on the mapping bits represents whether corresponding SMR regions are reconstructed or not; correspondingly, when the information on the mapping bits is the first bitmap value, for example, 0, the SMR region corresponding to the mapping bits may be characterized not to be reconstructed; when the information on the mapping bit is the second bit mapping value, for example, 1, the SMR region reconstruction corresponding to the mapping bit can be characterized. In addition, as long as one of the information in the mapping bitmap is the second bitmap value, the array reconstruction of the target SMR disk is required, and an SMR area corresponding to a mapping bit having the second bitmap value is an area in which the array reconstruction is required. Of course, there may be other ways to characterize whether the corresponding SMR region is reconstructed or not by means of bitmap, and the application is not limited in this respect.
In the method for reconstructing an SMR disk array provided in an embodiment of the present application, in a process of resetting a write pointer for performing array reconstruction in a target SMR disk and performing array reconstruction operation, array reconstruction operation may be performed in units of areas, for example, an SMR area corresponding to information representing reconstruction may be used as an array reconstruction area; and resetting a write pointer of the array reconstruction area, and performing array reconstruction operation on the array reconstruction area. In this way, only the array reconstruction region needs to be reconstructed, and the region outside the array reconstruction region in the target SMR disk does not need to be reconstructed, so that the reconstruction efficiency can be improved.
Referring to fig. 2, fig. 2 is a second flowchart illustrating a method for reconstructing an SMR disk array according to an embodiment of the present application.
The method for reconstructing the SMR disk array provided by the embodiment of the application can comprise the following steps:
step S201: and acquiring reconstruction information of the target SMR disk, wherein the reconstruction information represents whether each SMR area in the target SMR disk is reconstructed or not.
Step S202: judging whether the reconstruction information has information representing to be reconstructed or not; if the reconstruction information includes information characterizing the reconstruction, step S203 is executed, and if the reconstruction information does not include information characterizing the reconstruction, step S207 is executed.
Step S203: the SMR disk is determined to be rebuilt, and step S204 is executed.
Step S204: taking an SMR region corresponding to the information representing the reconstruction as an array reconstruction region; and determining a redundant SMR area which forms a redundant array with the array reconstruction area.
Step S205: judging whether redundant SMR areas are fully written or not; if the redundant SMR areas are all full, step S206 is performed.
Step S206: and resetting a write pointer of the array reconstruction area, and performing array reconstruction operation on the array reconstruction area.
Step S207: the SMR disk is decided not to be rebuilt.
In practical application, after an SMR region corresponding to information representing reconstruction is used as an array reconstruction region; before resetting the writing pointer of the array reconstruction area, a redundant SMR area which forms a redundant array with the array reconstruction area can be determined; judging whether redundant SMR areas are fully written or not; and if the redundant SMR areas are all full, resetting a write pointer of the array rebuilding area. The redundant SMR area refers to an area which forms a redundant array with the array reconstruction area, and the array reconstruction process of the array reconstruction area needs to be based on the redundant SMR area, so that the service process of the redundant SMR area cannot be influenced if the redundant SMR area is fully written, and then the array reconstruction area is reconstructed according to the redundant SMR area, thereby avoiding the conflict between the service of the redundant SMR area and the service of the array reconstruction area, ensuring the service stability of the target SMR disk, and in addition, when the redundant SMR area is fully written, and then the array reconstruction area is reconstructed according to the redundant SMR area, the service data of the redundant SMR area cannot be damaged, and avoiding the redundant SMR area from becoming the array reconstruction area which needs to be subjected to array reconstruction.
In practical application, after an SMR region corresponding to information representing reconstruction is used as an array reconstruction region; before resetting the writing pointer of the array reconstruction area, a redundant SMR area which forms a redundant array with the array reconstruction area can be determined; judging whether the redundant SMR areas are empty or not; if the redundant SMR areas are empty, skipping the array reconstruction operation of the array reconstruction area; if the redundant SMR areas are not all empty and an area which is executing the write operation exists in the redundant SMR areas, the step of resetting the write pointer of the array rebuilding area can be executed after waiting for the first time length. Note that, the redundant SMR areas are all empty, and the redundant SMR areas are characterized by absence of data, so that data does not need to be written into the array reconstruction area, and thus the array reconstruction operation on the array reconstruction area can be skipped; in addition, the purpose of setting the first duration is to enable the redundant SMR area to be fully written after the first duration, the specific duration of the first duration may be determined according to actual needs, and in a specific application scenario, in the process of waiting for the first duration, array reconstruction may be performed according to the fully written redundant SMR area, and then array reconstruction may be performed according to the non-fully written redundant SMR area.
In practical application, in order to avoid overwriting the array reconstruction region, before resetting a write pointer of the array reconstruction region, whether the array reconstruction region is empty can be judged; if the array reconstruction area is not empty, the array reconstruction area is reset, and then the step of resetting the write pointer of the array reconstruction area is executed. That is, in the case that the array reconstruction region is not empty, the array reconstruction region needs to be reset first to make the array reconstruction region empty, and then the write pointer of the array reconstruction region is reset, so that the array reconstruction region can be prevented from being overwritten. It should be noted that if the redundant SMR areas are all empty, then the array reconstruction may not be performed on the array reconstruction area.
In practical application, in the process of performing array reconstruction on an array reconstruction region, an array reconstruction failure may occur, at this time, the array reconstruction needs to be performed on the array reconstruction region again, if the reconstruction is performed again or fails, the array reconstruction is continuously performed on the array reconstruction region, resources are wasted, and a subsequent array reconstruction region cannot be reconstructed, so that in order to avoid continuously performing array reconstruction on a single array reconstruction region, whether the reconstruction of the array reconstruction region is successful or not can be judged after the array reconstruction operation is performed on the array reconstruction region; if the reconstruction of the array reconstruction region is not successful, accumulating the real-time reconstruction times of the array reconstruction region, and judging whether the real-time reconstruction times are less than the preset reconstruction times; if the real-time reconstruction times are smaller than the preset reconstruction times, returning to the step of executing the array reconstruction operation on the array reconstruction area; and if the real-time reconstruction times are larger than or equal to the preset reconstruction times, skipping the array reconstruction operation of the array reconstruction area. The preset number of times of reconstruction may be determined according to actual needs, for example, 3 times, 5 times, and the like, and the present application is not limited specifically herein. In addition, in a specific application scenario, after the array reconstruction of the array reconstruction region is completed by one pair of wheels, if an array reconstruction region still exists in the target SMR disk, the array reconstruction of the target SMR disk may be continued.
In practical application, in order to facilitate understanding of the latest information of the target SMR area, after the array reconstruction operation is performed on the array reconstruction area, the reconstruction information may be modified correspondingly according to an array reconstruction result of the array reconstruction area, for example, when the array reconstruction result represents that the reconstruction of the array reconstruction area is successful, information on a mapping bit corresponding to the array reconstruction area may be switched from a second bit mapping value to a first bit mapping value in the reconstruction information of the target SMR disk, and when the reconstruction of the array reconstruction result represents that the array reconstruction area is failed, information on a mapping bit corresponding to the array reconstruction area may be maintained as the second bit mapping value in the reconstruction information of the target SMR disk; in addition, in order to avoid wasting too much system resources due to repeated array reconstruction of the target SMR disk, the array reconstruction operation may be prohibited from being performed within the second duration after the reconstruction information is modified correspondingly. The specific value of the second time length can be determined according to actual needs.
Referring to fig. 3, fig. 3 is a schematic structural diagram of an SMR disk array reconstruction system according to an embodiment of the present application.
An SMR disk array rebuilding system provided in an embodiment of the present application may include:
a first obtaining module 101, configured to obtain reconstruction information of a target SMR disk, where the reconstruction information indicates whether each SMR area in the target SMR disk is reconstructed or not;
a first determining module 102, configured to determine whether to perform array reconstruction on a target SMR disk according to reconstruction information of the target SMR disk;
the first execution module 103 is configured to, when performing array reconstruction on the target SMR disk, reset a write pointer of the target SMR disk, where the array reconstruction is performed, and perform an array reconstruction operation.
According to the SMR disk array reconstruction system provided by the embodiment of the application, the type of the reconstruction information can comprise a bit mapping table, mapping bits of the bit mapping table correspond to SMR areas one by one, and when the information on the mapping bits is a first bit mapping value, the SMR areas corresponding to the representation mapping bits are not reconstructed; and when the information on the mapping bit is the second bit mapping value, the SMR region corresponding to the characterization mapping bit is reconstructed.
In an SMR disk array rebuilding system provided in an embodiment of the present application, the first executing module may include:
the first setting unit is used for taking an SMR region corresponding to the information representing the reconstruction as an array reconstruction region;
and the first resetting unit resets the writing pointer of the array reconstruction area and carries out array reconstruction operation on the array reconstruction area.
The SMR disk array rebuilding system provided in an embodiment of the present application may further include:
the first determining unit is used for the first setting unit to take an SMR region corresponding to the information representing the reconstruction as an array reconstruction region; before the first reset unit resets the write pointer of the array reconstruction area, a redundant SMR area forming a redundant array with the array reconstruction area is determined;
the first judgment unit is used for judging whether the redundant SMR areas are fully written or not; if the redundant SMR areas are all full, prompting the first reset unit to execute the step of resetting the write pointer of the array reconstruction area.
The SMR disk array rebuilding system provided in an embodiment of the present application may further include:
the second determining unit is used for the first setting unit to use the SMR area corresponding to the information for representing the reconstruction as the array reconstruction area; before the first reset unit resets the write pointer of the array reconstruction area, a redundant SMR area forming a redundant array with the array reconstruction area is determined;
the second judgment unit is used for judging whether the redundant SMR areas are all empty; if the redundant SMR areas are empty, skipping the array reconstruction operation of the array reconstruction area; and if the redundant SMR areas are not empty and an area which is executing the write operation exists in the redundant SMR areas, waiting for the first time length and then executing the step of resetting the write pointer of the array rebuilding area.
The SMR disk array rebuilding system provided in an embodiment of the present application may further include:
the third judgment unit is used for judging whether the array reconstruction area is empty or not before the first reset unit resets the write pointer of the array reconstruction area; if the array reconstruction area is not empty, the array reconstruction area is reset, and then the first reset unit is prompted to execute the step of resetting the write pointer of the array reconstruction area.
The SMR disk array rebuilding system provided in an embodiment of the present application may further include:
the fourth judgment unit is used for judging whether the reconstruction of the array reconstruction region is successful after the first resetting unit carries out the array reconstruction operation on the array reconstruction region; if the reconstruction of the array reconstruction region is not successful, accumulating the real-time reconstruction times of the array reconstruction region, and judging whether the real-time reconstruction times are less than the preset reconstruction times; if the real-time reconstruction times are smaller than the preset reconstruction times, returning to the step of executing the array reconstruction operation on the array reconstruction area; and if the real-time reconstruction times are larger than or equal to the preset reconstruction times, skipping the array reconstruction operation of the array reconstruction area.
The SMR disk array rebuilding system provided in an embodiment of the present application may further include:
the second acquisition module is used for acquiring an array reconstruction result of the array reconstruction region;
the first modification module is used for switching the information on the mapping bits corresponding to the array reconstruction area from the second bit mapping value to the first bit mapping value in the reconstruction information of the target SMR disk if the reconstruction of the array reconstruction area represented by the array reconstruction result is successful; if the reconstruction of the array reconstruction region represented by the array reconstruction result fails, keeping the information on the mapping bit corresponding to the array reconstruction region as a second bit mapping value in the reconstruction information of the target SMR disk
The application also provides SMR disk array reconstruction equipment and a computer readable storage medium, which have the corresponding effects of the SMR disk array reconstruction method provided by the embodiment of the application. Referring to fig. 4, fig. 4 is a schematic structural diagram of an SMR disk array reconstruction apparatus according to an embodiment of the present application.
The SMR disk array rebuilding apparatus provided in an embodiment of the present application includes a memory 201 and a processor 202, where the memory 201 stores a computer program, and the processor 202 implements the following steps when executing the computer program:
acquiring reconstruction information of a target SMR disk, wherein the reconstruction information represents whether each SMR area in the target SMR disk is reconstructed or not;
judging whether to carry out array reconstruction on the target SMR disk according to reconstruction information of the target SMR disk;
and if the array reconstruction is carried out on the target SMR disk, resetting a write pointer for carrying out the array reconstruction in the target SMR disk, and carrying out the array reconstruction operation.
The SMR disk array rebuilding apparatus provided in an embodiment of the present application includes a memory 201 and a processor 202, where the memory 201 stores a computer program, and the processor 202 implements the following steps when executing the computer program: the type of the reconstruction information comprises a bit mapping table, mapping bits of the bit mapping table correspond to SMR regions one by one, and when the information on the mapping bits is a first bit mapping value, the SMR regions corresponding to the representation mapping bits are not reconstructed; and when the information on the mapping bit is the second bit mapping value, the SMR region corresponding to the characterization mapping bit is reconstructed.
The SMR disk array rebuilding apparatus provided in an embodiment of the present application includes a memory 201 and a processor 202, where the memory 201 stores a computer program, and the processor 202 implements the following steps when executing the computer program: taking an SMR region corresponding to the information representing the reconstruction as an array reconstruction region; and resetting a write pointer of the array reconstruction area, and performing array reconstruction operation on the array reconstruction area.
The SMR disk array rebuilding apparatus provided in an embodiment of the present application includes a memory 201 and a processor 202, where the memory 201 stores a computer program, and the processor 202 implements the following steps when executing the computer program: after an SMR region corresponding to the information representing reconstruction is used as an array reconstruction region; before resetting a write pointer of the array reconstruction area, determining a redundant SMR area forming a redundant array with the array reconstruction area; judging whether redundant SMR areas are fully written or not; and if the redundant SMR areas are all full, resetting a write pointer of the array rebuilding area.
The SMR disk array rebuilding apparatus provided in an embodiment of the present application includes a memory 201 and a processor 202, where the memory 201 stores a computer program, and the processor 202 implements the following steps when executing the computer program: after an SMR region corresponding to the information representing reconstruction is used as an array reconstruction region; before resetting a write pointer of the array reconstruction area, determining a redundant SMR area forming a redundant array with the array reconstruction area; judging whether the redundant SMR areas are empty or not; if the redundant SMR areas are empty, skipping the array reconstruction operation of the array reconstruction area; and if the redundant SMR areas are not empty and an area which is executing the write operation exists in the redundant SMR areas, waiting for the first time length and then executing the step of resetting the write pointer of the array rebuilding area.
The SMR disk array rebuilding apparatus provided in an embodiment of the present application includes a memory 201 and a processor 202, where the memory 201 stores a computer program, and the processor 202 implements the following steps when executing the computer program: before resetting a write pointer of the array reconstruction area, judging whether the array reconstruction area is empty; if the array reconstruction area is not empty, the array reconstruction area is reset, and then the step of resetting the write pointer of the array reconstruction area is executed.
The SMR disk array rebuilding apparatus provided in an embodiment of the present application includes a memory 201 and a processor 202, where the memory 201 stores a computer program, and the processor 202 implements the following steps when executing the computer program: after the array reconstruction operation is carried out on the array reconstruction region, whether the reconstruction of the array reconstruction region is successful is judged; if the reconstruction of the array reconstruction region is not successful, accumulating the real-time reconstruction times of the array reconstruction region, and judging whether the real-time reconstruction times are less than the preset reconstruction times; if the real-time reconstruction times are smaller than the preset reconstruction times, returning to the step of executing the array reconstruction operation on the array reconstruction area; and if the real-time reconstruction times are larger than or equal to the preset reconstruction times, skipping the array reconstruction operation of the array reconstruction area.
The SMR disk array rebuilding apparatus provided in an embodiment of the present application includes a memory 201 and a processor 202, where the memory 201 stores a computer program, and the processor 202 implements the following steps when executing the computer program: after the array reconstruction operation is carried out on the array reconstruction area, the array reconstruction result of the array reconstruction area is obtained, if the array reconstruction result represents that the reconstruction of the array reconstruction area is successful, the information on the mapping bit corresponding to the array reconstruction area is switched from the second bit mapping value to the first bit mapping value in the reconstruction information of the target SMR disk; and if the reconstruction of the array reconstruction region represented by the array reconstruction result fails, keeping the information on the mapping bit corresponding to the array reconstruction region as a second bit mapping value in the reconstruction information of the target SMR disk.
Referring to fig. 5, another SMR disk array rebuilding apparatus provided in an embodiment of the present application may further include: an input port 203 connected to the processor 202, for transmitting externally input commands to the processor 202; a display unit 204 connected to the processor 202, for displaying the processing result of the processor 202 to the outside; and the communication module 205 is connected with the processor 202 and is used for realizing the communication between the SMR disk array reconstruction device and the outside world. The display unit 204 may be a display panel, a laser scanning display, or the like; the communication method adopted by the communication module 205 includes, but is not limited to, mobile high definition link technology (HML), Universal Serial Bus (USB), High Definition Multimedia Interface (HDMI), and wireless connection: wireless fidelity technology (WiFi), bluetooth communication technology, bluetooth low energy communication technology, ieee802.11s based communication technology.
A computer-readable storage medium is provided in an embodiment of the present application, in which a computer program is stored, and when the computer program is executed by a processor, the computer program implements the following steps:
acquiring reconstruction information of a target SMR disk, wherein the reconstruction information represents whether each SMR area in the target SMR disk is reconstructed or not;
judging whether to carry out array reconstruction on the target SMR disk according to reconstruction information of the target SMR disk;
and if the array reconstruction is carried out on the target SMR disk, resetting a write pointer for carrying out the array reconstruction in the target SMR disk, and carrying out the array reconstruction operation.
A computer-readable storage medium is provided in an embodiment of the present application, in which a computer program is stored, and when the computer program is executed by a processor, the computer program implements the following steps: the type of the reconstruction information comprises a bit mapping table, mapping bits of the bit mapping table correspond to SMR regions one by one, and when the information on the mapping bits is a first bit mapping value, the SMR regions corresponding to the representation mapping bits are not reconstructed; and when the information on the mapping bit is the second bit mapping value, the SMR region corresponding to the characterization mapping bit is reconstructed.
A computer-readable storage medium is provided in an embodiment of the present application, in which a computer program is stored, and when the computer program is executed by a processor, the computer program implements the following steps: taking an SMR region corresponding to the information representing the reconstruction as an array reconstruction region; and resetting a write pointer of the array reconstruction area, and performing array reconstruction operation on the array reconstruction area.
A computer-readable storage medium is provided in an embodiment of the present application, in which a computer program is stored, and when the computer program is executed by a processor, the computer program implements the following steps: after an SMR region corresponding to the information representing reconstruction is used as an array reconstruction region; before resetting a write pointer of the array reconstruction area, determining a redundant SMR area forming a redundant array with the array reconstruction area; judging whether redundant SMR areas are fully written or not; and if the redundant SMR areas are all full, resetting a write pointer of the array rebuilding area.
A computer-readable storage medium is provided in an embodiment of the present application, in which a computer program is stored, and when the computer program is executed by a processor, the computer program implements the following steps: after an SMR region corresponding to the information representing reconstruction is used as an array reconstruction region; before resetting a write pointer of the array reconstruction area, determining a redundant SMR area forming a redundant array with the array reconstruction area; judging whether the redundant SMR areas are empty or not; if the redundant SMR areas are empty, skipping the array reconstruction operation of the array reconstruction area; and if the redundant SMR areas are not empty and an area which is executing the write operation exists in the redundant SMR areas, waiting for the first time length and then executing the step of resetting the write pointer of the array rebuilding area.
A computer-readable storage medium is provided in an embodiment of the present application, in which a computer program is stored, and when the computer program is executed by a processor, the computer program implements the following steps: before resetting a write pointer of the array reconstruction area, judging whether the array reconstruction area is empty; if the array reconstruction area is not empty, the array reconstruction area is reset, and then the step of resetting the write pointer of the array reconstruction area is executed.
A computer-readable storage medium is provided in an embodiment of the present application, in which a computer program is stored, and when the computer program is executed by a processor, the computer program implements the following steps: after the array reconstruction operation is carried out on the array reconstruction region, whether the reconstruction of the array reconstruction region is successful is judged; if the reconstruction of the array reconstruction region is not successful, accumulating the real-time reconstruction times of the array reconstruction region, and judging whether the real-time reconstruction times are less than the preset reconstruction times; if the real-time reconstruction times are smaller than the preset reconstruction times, returning to the step of executing the array reconstruction operation on the array reconstruction area; and if the real-time reconstruction times are larger than or equal to the preset reconstruction times, skipping the array reconstruction operation of the array reconstruction area.
A computer-readable storage medium is provided in an embodiment of the present application, in which a computer program is stored, and when the computer program is executed by a processor, the computer program implements the following steps: after the array reconstruction operation is carried out on the array reconstruction area, the array reconstruction result of the array reconstruction area is obtained, if the array reconstruction result represents that the reconstruction of the array reconstruction area is successful, the information on the mapping bit corresponding to the array reconstruction area is switched from the second bit mapping value to the first bit mapping value in the reconstruction information of the target SMR disk; and if the reconstruction of the array reconstruction region represented by the array reconstruction result fails, keeping the information on the mapping bit corresponding to the array reconstruction region as a second bit mapping value in the reconstruction information of the target SMR disk.
The computer-readable storage media to which this application relates include Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage media known in the art.
For a description of relevant parts in the SMR disk array reconstruction system, the SMR disk array reconstruction device, and the computer-readable storage medium provided in the embodiments of the present application, reference is made to detailed descriptions of corresponding parts in the SMR disk array reconstruction method provided in the embodiments of the present application, and details are not repeated here. In addition, parts of the above technical solutions provided in the embodiments of the present application, which are consistent with the implementation principles of corresponding technical solutions in the prior art, are not described in detail so as to avoid redundant description.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (11)
1. A method of SMR disk array reconstruction, comprising:
acquiring reconstruction information of a target SMR disk, wherein the reconstruction information represents whether each SMR area in the target SMR disk is reconstructed or not;
judging whether to perform array reconstruction on the target SMR disk according to the reconstruction information of the target SMR disk;
and if the target SMR disk is subjected to array reconstruction, resetting a write pointer for performing array reconstruction in the target SMR disk, and performing array reconstruction operation.
2. The method according to claim 1, wherein the type of the reconstruction information comprises a bitmap, mapping bits of the bitmap correspond to the SMR regions one to one, and when the information on the mapping bits is a first bitmap value, the SMR regions corresponding to the mapping bits are characterized not to be reconstructed; and when the information on the mapping bit is a second bit mapping value, representing the SMR region reconstruction corresponding to the mapping bit.
3. The method of claim 2, wherein resetting a write pointer in the target SMR disk for array rebuild and performing an array rebuild operation comprises:
taking an SMR region corresponding to the information representing the reconstruction as an array reconstruction region;
and resetting a write pointer of the array reconstruction area, and performing array reconstruction operation on the array reconstruction area.
4. The method according to claim 3, characterized in that the SMR region corresponding to the information characterizing the reconstruction is used as the array reconstruction region; before resetting the write pointer of the array reconstruction area, the method further includes:
determining a redundant SMR area forming a redundant array with the array reconstruction area;
judging whether the redundant SMR areas are full;
if the redundant SMR areas are all full, the step of resetting the write pointer of the array rebuilding area is executed.
5. The method according to claim 3, characterized in that the SMR region corresponding to the information characterizing the reconstruction is used as the array reconstruction region; before resetting the write pointer of the array reconstruction area, the method further includes:
determining a redundant SMR area forming a redundant array with the array reconstruction area;
judging whether the redundant SMR areas are empty or not;
if the redundant SMR areas are all empty, skipping array reconstruction operation on the array reconstruction area;
and if the redundant SMR areas are not all empty and an area which is executing the write operation exists in the redundant SMR areas, waiting for a first time length and then executing the step of resetting the write pointer of the array rebuilding area.
6. The method of claim 3, wherein before resetting the write pointer of the array rebuild area, further comprising:
judging whether the array reconstruction area is empty or not;
if the array reconstruction area is not empty, resetting the array reconstruction area, and then executing the step of resetting the write pointer of the array reconstruction area.
7. The method of claim 3, wherein after performing the array reconstruction operation on the array reconstruction region, further comprising:
judging whether the reconstruction of the array reconstruction region is successful;
if the array reconstruction region is not successfully reconstructed, accumulating the real-time reconstruction times of the array reconstruction region, and judging whether the real-time reconstruction times are smaller than the preset reconstruction times;
if the real-time reconstruction times are smaller than the preset reconstruction times, returning to the step of executing the array reconstruction operation on the array reconstruction area;
and if the real-time reconstruction times are larger than or equal to the preset reconstruction times, skipping the array reconstruction operation of the array reconstruction area.
8. The method of claim 3, wherein after performing the array reconstruction operation on the array reconstruction region, further comprising:
obtaining an array reconstruction result of the array reconstruction region;
if the array reconstruction result represents that the reconstruction of the array reconstruction area is successful, switching the information on the mapping bits corresponding to the array reconstruction area from the second bit mapping value to the first bit mapping value in the reconstruction information of the target SMR disk;
and if the array reconstruction result represents that the reconstruction of the array reconstruction area fails, keeping the information on the mapping bit corresponding to the array reconstruction area as the second bit mapping value in the reconstruction information of the target SMR disk.
9. An SMR disk array reconstruction system, comprising:
the device comprises a first acquisition module, a second acquisition module and a third acquisition module, wherein the first acquisition module is used for acquiring reconstruction information of a target SMR disk, and the reconstruction information represents whether each SMR area in the target SMR disk is reconstructed or not;
the first judgment module is used for judging whether to carry out array reconstruction on the target SMR disk according to the reconstruction information of the target SMR disk;
and the first execution module is used for resetting a write pointer for array reconstruction in the target SMR disk and performing array reconstruction operation when the array reconstruction is performed on the target SMR disk.
10. An SMR disk array reconstruction apparatus, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the SMR disk array reconstruction method as claimed in any one of claims 1 to 8 when executing the computer program.
11. A computer-readable storage medium, having stored thereon a computer program which, when executed by a processor, performs the steps of the SMR disk array reconstruction method as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010479063.5A CN113741794B (en) | 2020-05-29 | 2020-05-29 | SMR disk array reconstruction method, system, equipment and computer medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010479063.5A CN113741794B (en) | 2020-05-29 | 2020-05-29 | SMR disk array reconstruction method, system, equipment and computer medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113741794A true CN113741794A (en) | 2021-12-03 |
| CN113741794B CN113741794B (en) | 2024-04-05 |
Family
ID=78725034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010479063.5A Active CN113741794B (en) | 2020-05-29 | 2020-05-29 | SMR disk array reconstruction method, system, equipment and computer medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113741794B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140019680A1 (en) * | 2012-07-16 | 2014-01-16 | Agency For Science, Technology And Research | Data storage system, method of writing to storage in the data storage system, hard disk and method of forming the hard disk |
| CN103699337A (en) * | 2013-12-04 | 2014-04-02 | 华为技术有限公司 | Writing control method and system based on independent redundant array of independent disks (RAID) |
| CN104142872A (en) * | 2014-08-13 | 2014-11-12 | 浪潮电子信息产业股份有限公司 | Quick reestablishment method for RAID (redundan array of inexpensive disk) |
| CN104461390A (en) * | 2014-12-05 | 2015-03-25 | 华为技术有限公司 | Method and device for writing data into imbricate magnetic recording SMR hard disk |
| CN105549908A (en) * | 2015-12-14 | 2016-05-04 | 深圳市万拓存储技术有限公司 | Method for restoring redundancy for RAID (Redundant Array of Independent Disks) disk array |
| CN105867841A (en) * | 2016-03-24 | 2016-08-17 | 浙江宇视科技有限公司 | Data reconstruction method and apparatus |
| CN106201355A (en) * | 2016-07-12 | 2016-12-07 | 腾讯科技（深圳）有限公司 | Data processing method and device and storage system |
| CN109710184A (en) * | 2018-12-19 | 2019-05-03 | 中国人民解放军国防科技大学 | Hierarchical hybrid storage method and system for tile record disk perception |
-
2020
- 2020-05-29 CN CN202010479063.5A patent/CN113741794B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140019680A1 (en) * | 2012-07-16 | 2014-01-16 | Agency For Science, Technology And Research | Data storage system, method of writing to storage in the data storage system, hard disk and method of forming the hard disk |
| CN103699337A (en) * | 2013-12-04 | 2014-04-02 | 华为技术有限公司 | Writing control method and system based on independent redundant array of independent disks (RAID) |
| CN104142872A (en) * | 2014-08-13 | 2014-11-12 | 浪潮电子信息产业股份有限公司 | Quick reestablishment method for RAID (redundan array of inexpensive disk) |
| CN104461390A (en) * | 2014-12-05 | 2015-03-25 | 华为技术有限公司 | Method and device for writing data into imbricate magnetic recording SMR hard disk |
| CN105549908A (en) * | 2015-12-14 | 2016-05-04 | 深圳市万拓存储技术有限公司 | Method for restoring redundancy for RAID (Redundant Array of Independent Disks) disk array |
| CN105867841A (en) * | 2016-03-24 | 2016-08-17 | 浙江宇视科技有限公司 | Data reconstruction method and apparatus |
| CN106201355A (en) * | 2016-07-12 | 2016-12-07 | 腾讯科技（深圳）有限公司 | Data processing method and device and storage system |
| CN109710184A (en) * | 2018-12-19 | 2019-05-03 | 中国人民解放军国防科技大学 | Hierarchical hybrid storage method and system for tile record disk perception |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113741794B (en) | 2024-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102945201B (en) | The non-volatile media log recording of verification msg set | |
| KR100701563B1 (en) | Storage control apparatus and method | |
| US7577897B2 (en) | Data integrity inspection support method for disk devices, and data integrity inspection method for disk devices | |
| US7721143B2 (en) | Method for reducing rebuild time on a RAID device | |
| CN100489808C (en) | Storage system and bad storage device data maintenance method | |
| JP2014067313A (en) | Storage control device, storage control method and storage control program | |
| JP2008204041A (en) | Storage device and data arrangement control method | |
| CN101567211A (en) | Method for improving usability of disk and disk array controller | |
| US20130103902A1 (en) | Method and apparatus for implementing protection of redundant array of independent disks in file system | |
| CN110187830A (en) | A kind of method and system accelerating disk array reconstruction | |
| JP2010015197A (en) | Storage controller, data restoration device, and storage system | |
| CN104142872A (en) | Quick reestablishment method for RAID (redundan array of inexpensive disk) | |
| CN104050056A (en) | File system backup of multi-storage-medium device | |
| CN101609420A (en) | Realize method and the redundant arrays of inexpensive disks and the controller thereof of rebuilding of disc redundant array | |
| JP2005011317A (en) | Method and device for initializing storage system | |
| CN101916173A (en) | RAID (Redundant Array of Independent Disks) based data reading and writing method and system thereof | |
| CN104166601B (en) | The backup method and device of a kind of data storage | |
| WO2024113685A1 (en) | Data recovery method for raid array and related apparatus | |
| US10860446B2 (en) | Failed storage device rebuild using dynamically selected locations in overprovisioned space | |
| CN103645997B (en) | A kind of method and system of data protection | |
| TW201329701A (en) | Automatic remapping in redundant array of independent disks and related raid | |
| JP4978259B2 (en) | Data integrity check method and data integrity check system | |
| JP2006285527A (en) | Storage device and program | |
| US8775735B2 (en) | Storage system and operation method of a storage system | |
| CN113741794B (en) | SMR disk array reconstruction method, system, equipment and computer medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |