CN110913005A - Data center remote parallel connection method and system - Google Patents
Data center remote parallel connection method and system Download PDFInfo
- Publication number
- CN110913005A CN110913005A CN201911199712.XA CN201911199712A CN110913005A CN 110913005 A CN110913005 A CN 110913005A CN 201911199712 A CN201911199712 A CN 201911199712A CN 110913005 A CN110913005 A CN 110913005A
- Authority
- CN
- China
- Prior art keywords
- center
- data
- cloud
- disaster recovery
- backup
- 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.)
- Withdrawn
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1446—Point-in-time backing up or restoration of persistent data
- G06F11/1448—Management of the data involved in backup or backup restore
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1446—Point-in-time backing up or restoration of persistent data
- G06F11/1458—Management of the backup or restore process
- G06F11/1464—Management of the backup or restore process for networked environments
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The embodiment of the invention discloses a method and a system for connecting data centers in parallel in different places, wherein the method comprises the following steps: a first data center and a local first disaster recovery center establish a synchronous relation; the first data center only backs up the incremental data to a second disaster recovery center in different places each time in an incremental cloud backup mode; and using a cloud restoration technology to freely restore the data of any backup time point of the second disaster recovery center in different places to the first data center or the first disaster recovery center. According to the embodiment of the invention, any backup point-in-time data can be freely recovered by using the cloud backup and cloud restoration technology.
Description
Technical Field
The invention relates to a storage technology, in particular to a method and a system for connecting data centers in parallel in different places.
Background
Disaster recovery backup is a very important research direction in the storage field, and therefore many schemes such as volume backup, local replication, remote replication, dual active, 3 Data Center (DC), etc. have been created. The 3DC is a disaster recovery mode of a two-place three-center, the two-place three-center is that a data center is arranged in a city A, the data center is provided with a disaster recovery center in the city, and then the data center is provided with a disaster recovery center in a city B. Therefore, even if the data of one center or one city is damaged, the other city can still provide backup, and the data cannot be lost.
Fig. 1 is a prior art 3DC model diagram, and as shown in fig. 1, a conventional 3DC is implemented by using a remote copy technology, and synchronizes data of a data center to a B city disaster recovery center by using a synchronous remote copy technology and an asynchronous remote copy technology. The data center in city A and the disaster recovery center in city B use a synchronous remote copy technology to back up data from the data center to the disaster recovery center, while the data center and the disaster recovery center in city B use an asynchronous remote copy technology to synchronize incremental data generated by the data center to the disaster recovery center in city B.
Disclosure of Invention
In order to solve the above technical problems, embodiments of the present invention provide a method and a system for connecting data centers in parallel in different places, which can freely restore any backup point-in-time data by using cloud backup and cloud restoration technologies.
In order to achieve the object of the present invention, in one aspect, an embodiment of the present invention provides a data center remote parallel connection method, including:
a first data center and a local first disaster recovery center establish a synchronous relation;
the first data center only backs up the incremental data to a second disaster recovery center in different places each time in an incremental cloud backup mode;
and using a cloud restoration technology to freely restore the data of any backup time point of the second disaster recovery center in different places to the first data center or the first disaster recovery center.
Optionally, the first data center establishes a synchronization relationship with a local first disaster recovery center; the method comprises the following steps:
and establishing a synchronous relation by using a synchronous remote copying mode.
Optionally, the method comprises:
and sending the data of the first data center to the cloud server for storage by using a Software Development Kit (SDK) interface by using the cloud server as the second disaster recovery center in different places.
Further, the freely restoring, by using a cloud restoration technology, data at any backup time point of the second disaster recovery center in a different place to the first data center or the first disaster recovery center further includes:
and the first data center performs five times of cloud backup, and freely selects and restores the data state to any one time of the five times of cloud backup by using a cloud restoration technology.
Further, the freely restoring, by using a cloud restoration technology, data at any backup time point of the second disaster recovery center in a different place to the first data center or the first disaster recovery center further includes:
and the first data center and the first disaster recovery center are connected to the cloud center, and when data of any center of the two centers is lost, the cloud center is selected for recovery.
On the other hand, the embodiment of the invention also provides a data center remote parallel system, which comprises:
the system comprises an establishing module, a synchronization module and a synchronization module, wherein the establishing module is used for establishing a synchronization relation between a first data center and a local first disaster recovery center;
the backup module is used for backing up only incremental data to a second disaster recovery center in different places each time by using an incremental cloud backup mode for the first data center;
and the restoration module is used for freely restoring the data of any backup time point of the second disaster recovery center in different places to the first data center or the first disaster recovery center by using a cloud restoration technology.
Optionally, the establishing module is configured to:
and establishing a synchronous relation by using a synchronous remote copying mode.
Optionally, the system is for:
and sending the data of the first data center to the cloud server for storage by using a Software Development Kit (SDK) interface by using the cloud server as the second disaster recovery center in different places.
Further, the recovery module is further configured to:
and the first data center performs five times of cloud backup, and freely selects and restores the data state to any one time of the five times of cloud backup by using a cloud restoration technology.
Further, the recovery module is further configured to:
and the first data center and the first disaster recovery center are connected to the cloud center, and when data of any center of the two centers is lost, the cloud center is selected for recovery.
The embodiment of the invention establishes a synchronous relation with a local first disaster recovery center through a first data center; the first data center only backs up the incremental data to a second disaster recovery center in different places each time in an incremental cloud backup mode; and using a cloud restoration technology to freely restore the data of any backup time point of the second disaster recovery center in different places to the first data center or the first disaster recovery center. According to the embodiment of the invention, any backup point-in-time data can be freely recovered by using the cloud backup and cloud restoration technology.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a prior art 3DC model diagram;
FIG. 2 is a flow chart of a data center off-site parallel method according to an embodiment of the present invention;
FIG. 3 is a 3DC model diagram of a data-centric off-site parallel approach according to an embodiment of the present invention;
fig. 4 is a structural diagram of a data center off-site parallel system according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.
Fig. 2 is a flowchart of a data center off-site parallel connection method according to an embodiment of the present invention, and as shown in fig. 2, the method according to the embodiment of the present invention includes the following steps:
step 201: a first data center and a local first disaster recovery center establish a synchronous relation;
for example, a data center of a city a establishes a synchronization relationship with a local disaster recovery center;
step 202: the first data center only backs up the incremental data to a second disaster recovery center in different places each time in an incremental cloud backup mode;
for example, if the data center in city a has incremental data, the incremental data is backed up to the second disaster recovery center in city B in a cloud backup manner;
the method comprises the steps of using a cloud backup technology, replacing a disaster recovery center of a city B with a cloud manufacturer server, using an incremental cloud backup mode, backing up only incremental data each time, and using a cloud restoration technology to freely restore any backup time point data.
Step 203: and using a cloud restoration technology to freely restore the data of any backup time point of the second disaster recovery center in different places to the first data center or the first disaster recovery center.
For example, the data of the second cloud backup of the disaster recovery center in city B is restored to the data center in city a.
Optionally, the first data center establishes a synchronization relationship with a local first disaster recovery center; the method comprises the following steps:
and establishing a synchronous relation by using a synchronous remote copying mode.
Optionally, the method comprises:
and sending the data of the first data center to the cloud server for storage by using a Software Development Kit (SDK) interface by using the cloud server as the second disaster recovery center in different places.
Further, the freely restoring, by using a cloud restoration technology, data at any backup time point of the second disaster recovery center in a different place to the first data center or the first disaster recovery center further includes:
and the first data center performs five times of cloud backup, and freely selects and restores the data state to any one time of the five times of cloud backup by using a cloud restoration technology.
It should be noted here that the number of cloud backups is not limited.
Further, the freely restoring, by using a cloud restoration technology, data at any backup time point of the second disaster recovery center in a different place to the first data center or the first disaster recovery center further includes:
and the first data center and the first disaster recovery center are connected to the cloud center, and when data of any center of the two centers is lost, the cloud center is selected for recovery.
For example, if the data of the disaster recovery center in city a is lost, the latest cloud backup data of the disaster recovery center in city B can be restored to the disaster recovery center in city a.
Fig. 3 is a 3DC model diagram in the data center remote parallel connection method according to the embodiment of the present invention, as shown in fig. 3, in the method provided in the embodiment of the present invention, a cloud manufacturer server such as ariloc, amazon, and the like for a parallel 3DC implementation model based on a cloud technology serves as a disaster recovery center in a B city, so that it is not necessary to build a disaster recovery center in the B city, and when any one of data in two centers in the a city is lost, the data can be recovered in the cloud.
The technical scheme of the embodiment of the invention is elaborated as follows:
in order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings.
The method provided by the embodiment of the invention is characterized in that a traditional scheme is used in city A, a data center and a local disaster recovery center are built, a second disaster recovery center uses a cloud manufacturer server, the data of the city A data center is backed up to the cloud manufacturer server by using a cloud backup technology, when any one of the data of the two centers of the city A is lost, the data can be recovered from the cloud end, backup records can be freely selected, and the state during any one backup can be recovered.
As shown in fig. 3, the B city disaster recovery center is changed to use a cloud vendor server. The city a data center uses a cloud backup technology to backup data to a cloud vendor server.
The cloud backup technology is a technology for backing up data on a storage system, and local data can be sent to a cloud manufacturer server for storage by using a Software Development Kit (SDK) interface provided by a cloud manufacturer, so that the effects of backing up and saving local disk space are achieved. According to the technical scheme, the method for using the incremental backup for the cloud backup can send all stored data to the cloud end when the data are synchronized to the cloud manufacturer server for the first time. And then, in each backup, only the changed data since the last backup is backed up, so that the backup efficiency can be improved, and meanwhile, the cloud space is saved.
The advantage of using cloud backup is that cloud restoration technology can be used, that is, if a site performs five times of cloud backup, the data state restored to any one time of the five times of cloud backup can be freely selected by using cloud restoration technology. And both centers in city A can be connected to the cloud center, so that when any one of the centers is lost, the cloud center can be selected to recover from the cloud.
In the technical scheme of the embodiment of the invention, the 3DC is a key scheme of disaster tolerance of the storage system. Therefore, the expansion can be continued, and the number of data centers or disaster recovery centers in each region is not limited.
Specifically, by using a cloud backup technology, the cloud manufacturer server is used for replacing a disaster recovery center of a city B, so that the cost is greatly saved, and meanwhile, the disaster recovery center can be deployed on a server of any city supported by a cloud manufacturer, so that the flexibility and the usability are improved.
Specifically, an incremental cloud backup mode is used, only incremental data are backed up each time, backup efficiency is improved, and cloud space is saved.
Specifically, a technique of cloud recovery is used, so that data at an arbitrary backup point in time can be freely recovered.
Specifically, the method of the embodiment of the invention mainly comprises the following steps:
the method comprises the following steps: and the data center and the disaster recovery center of the city A use synchronous remote copy to establish a synchronous relationship.
Step two: and the second disaster recovery center of the city B uses a cloud backup mode and uses a cloud manufacturer server as a disaster recovery center.
Step three: and only incremental data is backed up each time by using an incremental cloud backup mode.
Step four: and when needed, the cloud recovery technology is applied to recovery.
Fig. 4 is a structural diagram of a data center remote parallel system according to an embodiment of the present invention, and as shown in fig. 4, another aspect of the data center remote parallel system according to the embodiment of the present invention includes:
an establishing module 401, configured to establish a synchronization relationship between a first data center and a local first disaster recovery center;
a backup module 402, configured to backup, by the first data center, only incremental data to a second disaster recovery center in a different place each time in an incremental cloud backup manner;
a restoring module 403, configured to use a cloud restoring technology to freely restore data at any backup time point of the second disaster recovery center in a different place to the first data center or the first disaster recovery center.
Optionally, the establishing module 401 is configured to:
and establishing a synchronous relation by using a synchronous remote copying mode.
Optionally, the system is for:
and sending the data of the first data center to the cloud server for storage by using a Software Development Kit (SDK) interface by using the cloud server as the second disaster recovery center in different places.
Further, the recovery module 403 is further configured to:
and the first data center performs five times of cloud backup, and freely selects and restores the data state to any one time of the five times of cloud backup by using a cloud restoration technology.
Further, the recovery module 403 is further configured to:
and the first data center and the first disaster recovery center are connected to the cloud center, and when data of any center of the two centers is lost, the cloud center is selected for recovery.
The system of the embodiment of the invention specifically uses the cloud backup technology, and replaces the disaster recovery center of the city B with the cloud manufacturer server. And only incremental data is backed up each time by using an incremental cloud backup mode. The technology of cloud recovery is used so that data at an arbitrary backup point in time can be freely recovered.
In summary, in the embodiment of the present invention, a synchronization relationship is established between the first data center and the local first disaster recovery center; the first data center only backs up the incremental data to a second disaster recovery center in different places each time in an incremental cloud backup mode; and using a cloud restoration technology to freely restore the data of any backup time point of the second disaster recovery center in different places to the first data center or the first disaster recovery center. According to the embodiment of the invention, any backup point-in-time data can be freely recovered by using the cloud backup and cloud restoration technology.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A data center remote parallel connection method is characterized by comprising the following steps:
a first data center and a local first disaster recovery center establish a synchronous relation;
the first data center only backs up the incremental data to a second disaster recovery center in different places each time in an incremental cloud backup mode;
and using a cloud restoration technology to freely restore the data of any backup time point of the second disaster recovery center in different places to the first data center or the first disaster recovery center.
2. The data center remote parallel connection method according to claim 1, wherein the first data center establishes a synchronization relationship with a local first disaster recovery center; the method comprises the following steps:
and establishing a synchronous relation by using a synchronous remote copying mode.
3. The data-centric offsite parallel connection method according to claim 1, comprising:
and sending the data of the first data center to the cloud server for storage by using a Software Development Kit (SDK) interface by using the cloud server as the second disaster recovery center in different places.
4. The data center remote parallel connection method according to claim 3, wherein the freely restoring the data at any backup time point of the remote second disaster recovery center to the first data center or the first disaster recovery center by using a cloud restoration technology further comprises:
and the first data center performs five times of cloud backup, and freely selects and restores the data state to any one time of the five times of cloud backup by using a cloud restoration technology.
5. The data center remote parallel connection method according to claim 3, wherein the freely restoring the data at any backup time point of the remote second disaster recovery center to the first data center or the first disaster recovery center by using a cloud restoration technology further comprises:
and the first data center and the first disaster recovery center are connected to the cloud center, and when data of any center of the two centers is lost, the cloud center is selected for recovery.
6. A data center off-site parallel system, comprising:
the system comprises an establishing module, a synchronization module and a synchronization module, wherein the establishing module is used for establishing a synchronization relation between a first data center and a local first disaster recovery center;
the backup module is used for backing up only incremental data to a second disaster recovery center in different places each time by using an incremental cloud backup mode for the first data center;
and the restoration module is used for freely restoring the data of any backup time point of the second disaster recovery center in different places to the first data center or the first disaster recovery center by using a cloud restoration technology.
7. The data-centric offsite parallel system of claim 6, wherein the setup module is configured to:
and establishing a synchronous relation by using a synchronous remote copying mode.
8. The data-centric offsite parallel connection system according to claim 6, wherein the system is configured to:
and sending the data of the first data center to the cloud server for storage by using a Software Development Kit (SDK) interface by using the cloud server as the second disaster recovery center in different places.
9. The data-centric offsite parallel connection method according to claim 8, wherein the restoration module is further configured to:
and the first data center performs five times of cloud backup, and freely selects and restores the data state to any one time of the five times of cloud backup by using a cloud restoration technology.
10. The data-centric offsite parallel system of claim 8, wherein the recovery module is further configured to:
and the first data center and the first disaster recovery center are connected to the cloud center, and when data of any center of the two centers is lost, the cloud center is selected for recovery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911199712.XA CN110913005A (en) | 2019-11-29 | 2019-11-29 | Data center remote parallel connection method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911199712.XA CN110913005A (en) | 2019-11-29 | 2019-11-29 | Data center remote parallel connection method and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110913005A true CN110913005A (en) | 2020-03-24 |
Family
ID=69820640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911199712.XA Withdrawn CN110913005A (en) | 2019-11-29 | 2019-11-29 | Data center remote parallel connection method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110913005A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114520811A (en) * | 2022-04-20 | 2022-05-20 | 柏科数据技术（深圳）股份有限公司 | Production center data recovery method, system, terminal equipment and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106502823A (en) * | 2016-09-29 | 2017-03-15 | 北京许继电气有限公司 | data cloud backup method and system |
| US9753814B1 (en) * | 2014-12-19 | 2017-09-05 | EMC IP Holding Company LLC | Application level support for selectively accessing files in cloud-based storage |
| CN109218309A (en) * | 2018-09-14 | 2019-01-15 | 郑州云海信息技术有限公司 | A kind of data back up method, device, equipment and computer readable storage medium |
| CN109408289A (en) * | 2018-10-16 | 2019-03-01 | 国网山东省电力公司信息通信公司 | A kind of cloud disaster tolerance data processing method |
-
2019
- 2019-11-29 CN CN201911199712.XA patent/CN110913005A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9753814B1 (en) * | 2014-12-19 | 2017-09-05 | EMC IP Holding Company LLC | Application level support for selectively accessing files in cloud-based storage |
| CN106502823A (en) * | 2016-09-29 | 2017-03-15 | 北京许继电气有限公司 | data cloud backup method and system |
| CN109218309A (en) * | 2018-09-14 | 2019-01-15 | 郑州云海信息技术有限公司 | A kind of data back up method, device, equipment and computer readable storage medium |
| CN109408289A (en) * | 2018-10-16 | 2019-03-01 | 国网山东省电力公司信息通信公司 | A kind of cloud disaster tolerance data processing method |
Non-Patent Citations (2)
| Title |
|---|
| 王仲怡等: "银行业数据中心系统灾备技术", 《上海大学学报(自然科学版)》 * |
| 陈晓智等: "基于云计算模式的省级区域卫生信息平台项目研究", 《中国卫生信息管理》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114520811A (en) * | 2022-04-20 | 2022-05-20 | 柏科数据技术（深圳）股份有限公司 | Production center data recovery method, system, terminal equipment and storage medium |
| CN114520811B (en) * | 2022-04-20 | 2022-08-05 | 柏科数据技术（深圳）股份有限公司 | Production center data recovery method, system, terminal equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106407356B (en) | Data backup method and device | |
| CA2655911C (en) | Data transfer and recovery process | |
| US10019324B2 (en) | Data transfer and recovery | |
| CN101539873B (en) | Data recovery method, data node and distributed file system | |
| US6948089B2 (en) | Apparatus and method for multiple generation remote backup and fast restore | |
| CN102521083B (en) | Backup method and system of virtual machine in cloud computing system | |
| CN107256182B (en) | Method and device for restoring database | |
| US20130191347A1 (en) | Data transfer and recovery | |
| CN109325075A (en) | A kind of timely carry recovery system of Oracle based on timed backup and method | |
| CN109597718A (en) | A kind of disaster recovery platform and a kind of disaster recovery method | |
| CN107544870A (en) | A kind of disk backup method of virtue machine and device | |
| CN111984474B (en) | Method, system and equipment for recovering double-control cluster fault | |
| US20200341861A1 (en) | Method, device, and computer-readable storage medium for managing storage system | |
| CN107025149A (en) | Virtual machine backup/restoration system and method | |
| CN107135097A (en) | The disaster tolerance system and disaster recovery method filed based on bookkeeping | |
| CN112364104A (en) | Distributed database capacity expansion method, distributed database system and computer readable storage medium | |
| WO2013113220A1 (en) | Method and device for backup and recovery of network management configuration data | |
| CN112363868A (en) | Method, system, equipment and medium for incremental synchronization of annular two places and three centers | |
| CN110913005A (en) | Data center remote parallel connection method and system | |
| US20070022319A1 (en) | Maintaining and using information on updates to a data group after a logical copy is made of the data group | |
| CN109491980A (en) | A kind of remote replication method of file system, device, equipment and storage medium | |
| CN110532134B (en) | NAS data backup disaster recovery method and device | |
| CN108984346B (en) | Method, system and storage medium for producing data disaster tolerance | |
| CN111737046A (en) | A method to quickly restore the consistency of multi-copy data based on operation logs | |
| CN115964226A (en) | Data backup equipment, method, device and medium based on protection group |
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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200324 |
|
| WW01 | Invention patent application withdrawn after publication |