CN106844644B - Snapshot data storage management method and device - Google Patents
Snapshot data storage management method and device Download PDFInfo
- Publication number
- CN106844644B CN106844644B CN201710046572.7A CN201710046572A CN106844644B CN 106844644 B CN106844644 B CN 106844644B CN 201710046572 A CN201710046572 A CN 201710046572A CN 106844644 B CN106844644 B CN 106844644B
- Authority
- CN
- China
- Prior art keywords
- memory unit
- bitmap data
- operation instruction
- data
- controller
- 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.)
- Active
Links
- 238000013500 data storage Methods 0.000 title claims abstract description 46
- 238000007726 management method Methods 0.000 title claims abstract description 45
- 238000011022 operating instruction Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 18
- 230000005055 memory storage Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/11—File system administration, e.g. details of archiving or snapshots
- G06F16/128—Details of file system snapshots on the file-level, e.g. snapshot creation, administration, deletion
-
- 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
- G06F3/061—Improving I/O performance
-
- 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
- G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
-
- 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
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0683—Plurality of storage devices
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Data Mining & Analysis (AREA)
- Databases & Information Systems (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
Abstract
The invention discloses a snapshot data storage management method and a device, wherein the method comprises the following steps: storing the generated snapshot in a storage module of the system by taking a bitmap as a unit; and at least one controller is arranged corresponding to each memory unit in the memory module, and the controller is used for receiving the issued operation instruction and operating the bitmap data in the memory unit according to the operation instruction. Compared with the existing snapshot data storage method, the snapshot data storage management method and the snapshot data storage management device avoid the swap-in and swap-out operation between the memory and the disk, can reduce the read-write operation delay of the snapshot data, thereby improving the read-write speed and improving the read-write performance of the snapshot.
Description
Technical Field
The present invention relates to the field of snapshot storage technologies, and in particular, to a snapshot data storage management method and apparatus.
Background
With the rapid development and application of computer technology, the digital information has gradually replaced the traditional paper media data, and the average daily number is exponentially increased, which simultaneously puts higher requirements on data storage.
In many application industries, such as government departments, banking systems, power enterprises, etc., high requirements are placed on security and business continuity of data, online data protection must be provided, and the snapshot technology can realize online storage to prevent data loss. In particular, a snapshot is a fully available copy of a given data set that includes an image of the corresponding data at some point in time (copy start point in time). The snapshot enables online data backup and recovery. When the application failure or file damage occurs to the storage device, the data can be quickly recovered, and the data can be recovered to the state of a certain available time point; meanwhile, the snapshot provides another data access channel for the user, and when the original data is subjected to online application processing, the user can access the snapshot data or utilize the snapshot data to perform testing and other works.
In the prior art, snapshot data is stored in an independent physical area, for example, an independent disk or a fixed area in an independent disk, a part of a whole snapshot bitmap space is stored in a system memory, and when a bitmap is queried or intervened, if the bitmap is not hit, swap-in and swap-out operations of the memory and the disk are performed. However, such data operations may cause a large amount of IO delay for bitmap lookup and write operations.
Disclosure of Invention
The invention aims to provide a snapshot data storage management method and a snapshot data storage management device.
In order to achieve the purpose, the invention provides the following technical scheme:
a snapshot data storage management method, comprising:
storing the generated snapshot in a storage module of the system by taking a bitmap as a unit;
and arranging at least one controller corresponding to each memory unit in the memory storage module, wherein the controller is used for receiving the issued operation instruction and operating the bitmap data in the memory unit according to the operation instruction.
Optionally, at least two controllers are arranged corresponding to each memory unit in the memory module, and the bitmap data in the memory units are shared by the at least two controllers;
each of the at least two controllers stores the latest information of the bitmap data in the memory unit.
Optionally, the method further comprises: and when any one of the at least two controllers is down, the other controller receives the issued operating instruction and operates the bitmap data in the memory unit according to the operating instruction.
Optionally, the controller is configured to receive an issued operation instruction, and operate the bitmap data in the memory unit according to the operation instruction, and the method includes:
the controller is specifically configured to: when a reading operation instruction is received, reading the bitmap data of the memory unit according to the reading operation instruction;
when a write operation instruction is received, inquiring whether the bitmap data of the memory unit is copied, if so, performing write operation on the bitmap data of the memory unit according to the write operation instruction;
and if the copied bitmap data is not inquired, inquiring whether the bitmap data of the memory unit is copied from the controller, if the copied bitmap data of the memory unit is confirmed, performing writing operation, and if the copied bitmap data of the memory unit is not confirmed, performing copying operation on the bitmap data of the memory unit.
Optionally, the method further includes writing the bitmap data in the storage module into a predetermined storage module when the system shutdown is detected.
A snapshot data storage management apparatus includes a storage control module and a controller:
the storage control module is used for storing the generated snapshot in a storage module of the system by taking a bitmap as a unit;
and setting at least one controller corresponding to each memory unit in the memory storage module, wherein the controller is used for receiving the issued operation instruction and operating the bitmap data in the memory unit according to the operation instruction.
Optionally, at least two controllers are arranged corresponding to each memory unit in the memory module, and the bitmap data in the memory units are shared by the at least two controllers;
each of the at least two controllers stores the latest information of the bitmap data in the memory unit.
Optionally, when any one of the at least two controllers is down, the other controller receives the issued operation instruction, and operates the bitmap data in the memory unit according to the operation instruction.
Optionally, the controller is configured to receive an issued operation instruction, and operate the bitmap data in the memory unit according to the operation instruction, and the method includes:
the controller is specifically configured to: when a reading operation instruction is received, reading the bitmap data of the memory unit according to the reading operation instruction;
when a write operation instruction is received, inquiring whether the bitmap data of the memory unit is copied, if so, performing write operation on the bitmap data of the memory unit according to the write operation instruction;
and if the copied bitmap data is not inquired, inquiring whether the bitmap data of the memory unit is copied from the controller, if the copied bitmap data of the memory unit is confirmed, performing writing operation, and if the copied bitmap data of the memory unit is not confirmed, performing copying operation on the bitmap data of the memory unit.
Optionally, the system further comprises a power down protection module, configured to write the bitmap data in the internal storage module into a predetermined storage module when system shutdown is detected.
According to the technical scheme, the snapshot data storage management method and the snapshot data storage management device provided by the invention have the advantages that the generated snapshot is stored in the internal storage module of the system by taking the bitmap as a unit, at least one controller is arranged corresponding to each internal storage unit in the internal storage module, and the controller is used for receiving the issued operation instruction and operating the bitmap data in the internal storage unit according to the operation instruction.
Compared with the existing snapshot data storage method, the snapshot data storage management method and the snapshot data storage management device avoid the swap-in and swap-out operation between the memory and the disk, can reduce the read-write operation delay of the snapshot data, thereby improving the read-write speed and improving the read-write performance of the snapshot.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram illustrating a snapshot data storage management method according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a snapshot data storage management system according to an embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all 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 invention.
An embodiment of the present invention provides a snapshot data storage management method, please refer to fig. 1, including:
s10: and storing the generated snapshot in a bitmap unit in an internal storage module of the system.
The generated snapshot data is stored in a storage module of the system, and the bitmap is used as a unit to represent when a source volume and a destination volume of the snapshot data are managed in the method.
S11: and arranging at least one controller corresponding to each memory unit in the memory storage module, wherein the controller is used for receiving the issued operation instruction and operating the bitmap data in the memory unit according to the operation instruction.
It can be seen that, in the snapshot data storage management method of this embodiment, the generated snapshot is stored in the internal storage module of the system in units of bitmaps, at least one controller is arranged corresponding to each memory unit in the internal storage module, and the controller receives the issued operation instruction and operates the bitmap data in the memory unit according to the operation instruction. In the snapshot data storage management method of the embodiment, the generated snapshot data is stored in the system internal storage module, and the snapshot data is operated in an internal storage operation mode.
The snapshot data storage management method of the present embodiment is further described below. The snapshot data storage management method of the embodiment comprises the following steps:
s10: and storing the generated snapshot in a bitmap unit in an internal storage module of the system.
The generated snapshot data is stored in a storage module of the system, and the bitmap is used as a unit to represent when a source volume and a destination volume of the snapshot data are managed in the method. Whether a certain block of data is copied or not is described in units of bitmaps.
The internal storage module comprises a memory unit for storing data.
S11: and arranging at least one controller corresponding to each memory unit in the memory storage module, wherein the controller is used for receiving the issued operation instruction and operating the bitmap data in the memory unit according to the operation instruction.
At least one controller is arranged in the internal storage module corresponding to each memory unit, the controller controls the storage and read-write operation management of the snapshot data,
and the controller stores the latest information of the snapshot data stored in the corresponding memory unit. The method can adopt a timing synchronization strategy to set a time window, periodically synchronize the latest bitmap data to the snapshot node, and update and store the latest data information in the corresponding controller.
In the method, a system host adopts multi-path software to issue an operation instruction, when the multi-path software directs the operation instruction to a certain controller, the controller operates the corresponding memory cell bitmap data according to the issued operation instruction,
specifically, the operation of the bitmap data in the memory unit by the controller according to the operation instruction includes:
the controller is specifically configured to, when receiving a read operation instruction, perform a read operation on the bitmap data of the memory cell according to the read operation instruction.
The controller is specifically used for inquiring whether the bitmap data of the memory unit is copied or not when receiving a write operation instruction, and if so, performing write operation on the bitmap data of the memory unit according to the write operation instruction;
and if the copied bitmap data is not inquired, inquiring whether the bitmap data of the memory unit is copied from the controller, if the copied bitmap data of the memory unit is confirmed, performing writing operation, and if the copied bitmap data of the memory unit is not confirmed, performing copying operation on the bitmap data of the memory unit. After the bitmap data of the memory unit is copied to another storage position (a storage space reserved for snapshot data, referred to as a snapshot space), the memory unit is subjected to write operation according to the received write operation instruction.
Therefore, in the snapshot data storage management method of this embodiment, the generated snapshot data is stored in the system internal storage module, and the read-write operation is performed on the snapshot data in the internal storage operation mode.
In another embodiment of the snapshot data storage management method of the present invention, on the basis of the contents of the above embodiments, at least two controllers are provided corresponding to each memory unit in the storage module, and the bitmap data in the memory unit is shared by the at least two controllers; each of the at least two controllers stores the latest information of the bitmap data in the memory unit.
For example, two controllers may be provided for each memory unit in the corresponding internal storage module, the two controllers share bitmap data in the memory unit, and both the two controllers can control and manage storage and read-write operations of snapshot data in the memory unit.
The double controllers store the latest information of the snapshot data stored in the corresponding memory units. Each data update in the memory unit is synchronously executed between the two controllers. On one hand, the two controllers can process the issued operation instruction in real time and operate the bitmap data of the memory cells according to the operation instruction; on the other hand, when any one of the two controllers is down, the other controller receives the issued operating instruction and operates the bitmap data in the memory unit according to the operating instruction. Therefore, when one controller is down, the other controller can take over the data in real time without interrupting IO reading and writing.
Therefore, in the snapshot data storage management method of the embodiment, the multiple controllers are used for sharing the snapshot data of the memory unit, and when one of the controllers is down, another controller can take over the snapshot data in real time, so that IO read-write interruption is avoided, the data read-write efficiency is ensured, and the snapshot read-write performance is improved.
Further, in the snapshot data storage management method according to each of the above embodiments, writing the bitmap data in the storage module into a predetermined storage module when system shutdown is detected.
In the method, all snapshot data are stored and managed in a memory, and the memory belongs to volatile storage, so that in order to prevent data loss, a power failure protection mechanism is added to bitmap data managed by the memory. Optionally, the predetermined storage module may be a Solid State Disk (SSD).
Accordingly, an embodiment of the present invention further provides a snapshot data storage management apparatus, please refer to fig. 2, including a storage control module 20 and a controller 21:
the storage control module 20 is configured to store the generated snapshot in a unit of bitmap in a storage module of the system;
at least one controller 21 is arranged corresponding to each memory unit in the memory module, and the controller 21 is configured to receive a delivered operation instruction and operate bitmap data in the memory unit according to the operation instruction.
It can be seen that, in the snapshot data storage management apparatus of this embodiment, the storage control module stores the generated snapshot in the internal storage module of the system in units of bitmaps, at least one controller is arranged corresponding to each memory unit in the internal storage module, and the controller receives the issued operation instruction and operates the bitmap data in the memory unit according to the operation instruction. Compared with the existing snapshot data storage method, the snapshot data storage management device of the embodiment avoids the swap-in and swap-out operation between the memory and the disk, can reduce the read-write operation delay of the snapshot data, thereby improving the read-write speed and improving the snapshot read-write performance.
The snapshot data storage management apparatus of the present embodiment is further described below. The snapshot data storage management device of the embodiment includes a storage control module and a controller:
the storage control module 20 is configured to store the generated snapshot in units of bitmaps in an internal storage module of the system. In this apparatus, a source volume and a destination volume of snapshot data are managed in units of bitmaps. Whether a certain block of data is copied or not is described in units of bitmaps.
The internal storage module comprises a memory unit for storing data. At least one controller 21 is arranged corresponding to each memory unit in the memory module, the controller 21 is used for receiving the issued operation instruction, operating the bitmap data in the memory unit according to the operation instruction, controlling the storage and read-write operation management of the snapshot data by the controller 21,
the controller 21 saves the latest information of the snapshot data stored in the corresponding memory unit. The method can adopt a timing synchronization strategy to set a time window, periodically synchronize the latest bitmap data to the snapshot node, and update and store the latest data information in the corresponding controller.
The system host computer adopts multi-path software to issue operation instructions, when the multi-path software directs the operation instructions to a certain controller, the controller operates the corresponding memory cell bitmap data according to the issued operation instructions,
specifically, the operation performed by the controller 21 on the bitmap data in the memory unit according to the operation instruction includes:
the controller 21 is specifically configured to, when receiving a read operation instruction, perform a read operation on the bitmap data of the memory cell according to the read operation instruction.
The controller 21 is specifically configured to query whether the bitmap data of the memory unit is copied or not when receiving a write operation instruction, and if so, perform write operation on the bitmap data of the memory unit according to the write operation instruction;
and if the copied bitmap data is not inquired, inquiring whether the bitmap data of the memory unit is copied from the controller, if the copied bitmap data of the memory unit is confirmed, performing writing operation, and if the copied bitmap data of the memory unit is not confirmed, performing copying operation on the bitmap data of the memory unit. After the bitmap data of the memory unit is copied to another storage position (a storage space reserved for snapshot data, referred to as a snapshot space), the memory unit is subjected to write operation according to the received write operation instruction.
In another embodiment of the snapshot data storage management apparatus of the present invention, on the basis of the content of the above embodiment, at least two controllers 21 are arranged corresponding to each memory unit in the storage module, and at least two controllers 21 share bitmap data in the memory unit; each controller 21 of at least two of the controllers stores the latest information of the bitmap data in the memory unit.
Illustratively, two controllers 21 may be provided for each memory unit in the corresponding internal storage module, the two controllers 21 share bitmap data in the memory unit, and both controllers can implement control and management of storage and read-write operations of snapshot data in the memory unit.
The double controllers store the latest information of the snapshot data stored in the corresponding memory units. Each data update in the memory unit is synchronously executed between the two controllers. On one hand, the two controllers can process the issued operation instruction in real time and operate the bitmap data of the memory cells according to the operation instruction; on the other hand, when any one of the two controllers is down, the other controller receives the issued operating instruction and operates the bitmap data in the memory unit according to the operating instruction. Therefore, when one controller is down, the other controller can take over the data in real time without interrupting IO reading and writing.
Therefore, in the snapshot data storage management apparatus of this embodiment, the multiple controllers are used to share the snapshot data of the memory unit, and when one of the controllers is down, another controller can take over the snapshot data in real time, so as to avoid interrupting IO reading and writing, thereby ensuring data reading and writing efficiency and improving snapshot reading and writing performance.
Further, in the snapshot data storage management apparatus in each of the above embodiments, the apparatus further includes a power down protection module, configured to write the bitmap data in the storage module into a predetermined storage module when system shutdown is detected.
In the method, all snapshot data are stored and managed in a memory, and the memory belongs to volatile storage, so that in order to prevent data loss, a power failure protection mechanism is added to bitmap data managed by the memory, when a system is shut down or crashed, the snapshot data in the memory are written into a specified system disk so as to ensure that the data are not lost when the system is powered off and shut down, and when the system is restarted, the snapshot data are read out from the system disk into the memory. Optionally, the predetermined storage module may be a Solid State Disk (SSD).
The snapshot data storage management method and device provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (8)
1. A snapshot data storage management method, comprising:
storing the generated snapshot in a storage module of the system by taking a bitmap as a unit;
setting at least one controller corresponding to each memory unit in the memory module, wherein the controller is used for receiving a transmitted operation instruction and operating bitmap data in the memory unit according to the operation instruction;
the controller is configured to receive an issued operation instruction, and operate the bitmap data in the memory unit according to the operation instruction, and includes:
the controller is specifically configured to: when a reading operation instruction is received, reading the bitmap data of the memory unit according to the reading operation instruction;
when a write operation instruction is received, inquiring whether the bitmap data of the memory unit is copied, if so, performing write operation on the bitmap data of the memory unit according to the write operation instruction;
and if the copied bitmap data is not inquired, inquiring whether the bitmap data of the memory unit is copied from the controller, if the copied bitmap data of the memory unit is confirmed, performing writing operation, and if the copied bitmap data of the memory unit is not confirmed, performing copying operation on the bitmap data of the memory unit.
2. The snapshot data storage management method according to claim 1, wherein at least two of the controllers are provided corresponding to each memory unit in the internal storage module, and the bitmap data in the memory units are shared by the at least two controllers;
each of the at least two controllers stores the latest information of the bitmap data in the memory unit.
3. The snapshot data storage management method of claim 2, further comprising: and when any one of the at least two controllers is down, the other controller receives the issued operating instruction and operates the bitmap data in the memory unit according to the operating instruction.
4. The snapshot data storage management method according to any one of claims 1 to 3, further comprising writing bitmap data in the in-memory module into a predetermined memory module when a system shutdown is detected.
5. A snapshot data storage management apparatus, comprising a storage control module and a controller:
the storage control module is used for storing the generated snapshot in a storage module of the system by taking a bitmap as a unit;
setting at least one controller corresponding to each memory unit in the memory module, wherein the controller is used for receiving a transmitted operation instruction and operating bitmap data in the memory unit according to the operation instruction;
the controller is configured to receive an issued operation instruction, and operate the bitmap data in the memory unit according to the operation instruction, and includes:
the controller is specifically configured to: when a reading operation instruction is received, reading the bitmap data of the memory unit according to the reading operation instruction;
when a write operation instruction is received, inquiring whether the bitmap data of the memory unit is copied, if so, performing write operation on the bitmap data of the memory unit according to the write operation instruction;
and if the copied bitmap data is not inquired, inquiring whether the bitmap data of the memory unit is copied from the controller, if the copied bitmap data of the memory unit is confirmed, performing writing operation, and if the copied bitmap data of the memory unit is not confirmed, performing copying operation on the bitmap data of the memory unit.
6. The snapshot data storage management device according to claim 5, wherein at least two of the controllers are provided corresponding to each memory unit in the internal storage module, and at least two of the controllers share bitmap data in the memory units;
each of the at least two controllers stores the latest information of the bitmap data in the memory unit.
7. The snapshot data storage management apparatus of claim 6, wherein when any one of the at least two controllers goes down, another one of the at least two controllers receives a sent operation instruction, and operates the bitmap data in the memory unit according to the operation instruction.
8. The snapshot data storage management apparatus of any one of claims 5-7, further comprising a power down protection module, configured to write the bitmap data in the in-memory module into a predetermined memory module when a system shutdown is detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710046572.7A CN106844644B (en) | 2017-01-19 | 2017-01-19 | Snapshot data storage management method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710046572.7A CN106844644B (en) | 2017-01-19 | 2017-01-19 | Snapshot data storage management method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106844644A CN106844644A (en) | 2017-06-13 |
| CN106844644B true CN106844644B (en) | 2020-03-31 |
Family
ID=59120998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710046572.7A Active CN106844644B (en) | 2017-01-19 | 2017-01-19 | Snapshot data storage management method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106844644B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1567262A (en) * | 2003-06-10 | 2005-01-19 | 联想(北京)有限公司 | On-line data backup method based on data volume snapshot |
| CN101140536A (en) * | 2007-05-21 | 2008-03-12 | 中兴通讯股份有限公司 | Snapshot system supporting cascades snapshot and snapshot processing method thereof |
| CN101819543A (en) * | 2010-02-01 | 2010-09-01 | 成都市华为赛门铁克科技有限公司 | Snapshot data processing method, system and storage device |
| CN102012853A (en) * | 2011-01-14 | 2011-04-13 | 南开大学 | Zero-copy snapshot method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6823436B2 (en) * | 2001-10-02 | 2004-11-23 | International Business Machines Corporation | System for conserving metadata about data snapshots |
-
2017
- 2017-01-19 CN CN201710046572.7A patent/CN106844644B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1567262A (en) * | 2003-06-10 | 2005-01-19 | 联想(北京)有限公司 | On-line data backup method based on data volume snapshot |
| CN101140536A (en) * | 2007-05-21 | 2008-03-12 | 中兴通讯股份有限公司 | Snapshot system supporting cascades snapshot and snapshot processing method thereof |
| CN101819543A (en) * | 2010-02-01 | 2010-09-01 | 成都市华为赛门铁克科技有限公司 | Snapshot data processing method, system and storage device |
| CN102012853A (en) * | 2011-01-14 | 2011-04-13 | 南开大学 | Zero-copy snapshot method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106844644A (en) | 2017-06-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11016866B2 (en) | Techniques for maintaining communications sessions among nodes in a storage cluster system | |
| CN101840362B (en) | Method and device for achieving copy-on-write snapshot | |
| US9921955B1 (en) | Flash write amplification reduction | |
| CN103765373B (en) | Date storage method, data storage device and memory device | |
| US10139884B2 (en) | Power loss protection for solid state drives | |
| CN104077380B (en) | A kind of data de-duplication method, apparatus and system | |
| CN101937376B (en) | A kind of data managing method and data storage device | |
| CN101251826B (en) | Flash memory, method and apparatus for data management of flash memory | |
| CN104969168A (en) | Persistent storage device with NVRAM for staging writes | |
| CN103180852A (en) | Distributed data processing method and apparatus | |
| CN104360914A (en) | Incremental snapshot method and device | |
| CN108874574B (en) | Garbage recycling method and related device | |
| US10234929B2 (en) | Storage system and control apparatus | |
| CN103559119B (en) | File operation requests disposal route and device | |
| CN106200860B (en) | Hard disk power consumption and hard disk power consumption management service control method and device | |
| US20070245081A1 (en) | Storage system and performance tuning method thereof | |
| CN106844644B (en) | Snapshot data storage management method and device | |
| CN105068760A (en) | Data storage method, data storage apparatus and storage device | |
| CN114546604B (en) | Thermal migration method and device for virtual machine | |
| CN108400881B (en) | State machine based message engine dynamic adjustment method and device and electronic equipment | |
| CN113608925A (en) | Data backup method and system based on continuous data protection CDP protocol | |
| WO2020007058A1 (en) | Data writing method and storage system | |
| WO2016006108A1 (en) | Storage and control method therefor | |
| EP3321767B1 (en) | Method for reducing power consumption of memory and computer device | |
| CN103838639A (en) | Method, device and system for recovering metadata of virtual disk |
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 |