CN111858162A - Data processing method, system and device in remote copy - Google Patents
Data processing method, system and device in remote copy Download PDFInfo
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- CN111858162A CN111858162A CN202010605298.4A CN202010605298A CN111858162A CN 111858162 A CN111858162 A CN 111858162A CN 202010605298 A CN202010605298 A CN 202010605298A CN 111858162 A CN111858162 A CN 111858162A
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- 238000003672 processing method Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 27
- 230000010076 replication Effects 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06F11/1479—Generic software techniques for error detection or fault masking
- G06F11/1492—Generic software techniques for error detection or fault masking by run-time replication performed by the application software
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06F11/1479—Generic software techniques for error detection or fault masking
- G06F11/1482—Generic software techniques for error detection or fault masking by means of middleware or OS functionality
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Abstract
The invention provides a data processing method, a system and a device in remote copy, wherein the method comprises the steps of establishing two thin pools, respectively establishing a thin volume master volume and a thin volume slave volume in the thin pools, and establishing a remote copy relationship of the master volume and the slave volume; when the thin pool where any thin volume is located is full, the thin volume is in a read-only state. When the thin pool in which the thin volume is located is full, the thin volume is in a read-only state, and compared with the situation that the volume in which the thin volume is located is set to be in an off-line state after the traditional storage pool is full, the thin volume reading method and the thin volume reading device can not affect the reading operation of the volume and expand the operation range of services. And the reaction can be immediately carried out after the streamlined pool is full, and the service treatment timeliness cannot be influenced.
Description
Technical Field
The invention relates to the technical field of remote copy disaster tolerance, in particular to a data processing method, a system and a device in remote copy.
Background
After the storage pool where the master end or the slave end volume is located is full, the remote copy disaster recovery technology stops the remote copy relationship, and the master volume and the slave volume are in an offline state and cannot read and write.
For the above problem, the existing processing means is to perform read-write operation on the remotely copied primary volume only after the storage pool is full, the storage pool is expanded or garbage collection is performed on the storage pool so that the storage pool is no longer in the pool full state.
The processing means is complex, a large amount of cost is consumed, and the data processing service is influenced because the storage pool cannot react immediately after being full.
Disclosure of Invention
The invention provides a data processing method, a system and a device in remote copy, which are used for solving the problem that the existing storage pool cannot react immediately after being full, and the data processing service is influenced.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a data processing method in remote copy in a first aspect, which comprises the following steps:
creating two thin pools, respectively creating a thin volume master volume and a thin volume slave volume in the thin pools, and establishing a remote copy relationship of the master volume and the slave volume;
when the thin pool where any thin volume is located is full, the thin volume is in a read-only state.
Further, when the thin pool where the primary volume is located is full, the remote copy relationship is not changed, the primary volume is in a read-only state, and when there is read IO, the primary volume is directly processed.
Further, when the thin pool where the secondary volume is located is full, the remote copy relationship is stopped;
when a write IO request exists, the main volume processes the write IO and returns success;
when there is a read IO request, the primary volume processes the write IO and returns success.
Further, the remote copy relationship is dual active, when the thin pool where the master volume is located is full, the master volume and the slave volume are switched, the switched slave volume is in a read-only state, and the switched master volume processes the read/write IO request; when the thin pool where the slave volume is located is full, the slave volume is in a read-only state, and the master volume processes the read/write IO request.
Further, the method further includes displaying a read-only state of the thin volume, specifically:
adding a read-only attribute value of the compact volume in the status attribute value;
and when the thin volume is changed into a read-only state, correspondingly displaying the read-only attribute value of the thin volume.
Further, the remote copy includes a synchronous remote copy relationship and an asynchronous remote copy relationship.
A second aspect of the present invention provides a data processing system in remote copy, the system comprising:
the remote copy relationship establishing unit is used for establishing two thin pools, respectively establishing a thin volume master volume and a thin volume slave volume in the thin pools, and establishing a remote copy relationship of the master volume and the slave volume;
And the data processing unit is used for enabling any thin volume to be in a read-only state when the thin pool where the thin volume is located is full.
Further, the system further comprises a state display unit for displaying the read-only state of the thin volume.
A third aspect of the present invention provides a data processing apparatus in remote copy, said apparatus comprising two thin pools, a master volume, a slave volume and said data processing system.
A fourth aspect of the present invention provides a computer storage medium having stored therein computer instructions which, when run on a data processing system, cause the data processing system to perform the steps of the data processing method.
The data processing system in remote copy according to the second aspect of the present invention is capable of implementing the methods according to the first aspect and the implementation manners of the first aspect, and achieves the same effects.
The effect provided in the summary of the invention is only the effect of the embodiment, not all the effects of the invention, and one of the above technical solutions has the following advantages or beneficial effects:
when the thin pool in which the thin volume is located is full, the thin volume is in a read-only state, and compared with the situation that the volume in which the thin volume is located is set to be in an off-line state after the traditional storage pool is full, the thin volume reading method and the thin volume reading device can not affect the reading operation of the volume and expand the operation range of services. And the reaction can be immediately carried out after the streamlined pool is full, and the service treatment timeliness cannot be influenced. In addition, when the thin volume is in a read-only state, corresponding attribute value display is carried out, so that an operator can know the fullness condition of the thin pool in time, take counter measures as soon as possible, and further ensure the processing capacity of service data.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic flow diagram of the process of the present invention;
FIG. 2 is a schematic diagram of the structure of the remote copy relationship of the present invention;
fig. 3 is a schematic diagram of the system of the present invention.
Detailed Description
In order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and procedures are omitted so as to not unnecessarily limit the invention.
As shown in fig. 1, a data processing method in remote copy includes the following steps:
s1, creating two thin pools, creating a thin volume master volume and a thin volume slave volume in the thin pools respectively, and establishing a remote copy relationship of the master volume and the slave volume;
and S2, when the thin pool in which any thin volume is located is full, the thin volume is in a read-only state.
In step S1, a remote copy relationship as shown in fig. 2 is established, and the present invention is based on the full-flash product, where the storage pool is a thin pool, and a master volume and a slave volume of the remote copy are created as thin volumes from the thin pool.
Remote replication includes both synchronous remote replication relationships and asynchronous remote replication relationships.
Step S1 further includes initiating a remote copy relationship to synchronize the states of the master and slave volumes.
In step S2, when the thin pool in which the primary volume is located is full, the remote copy relationship is unchanged, the primary volume does not process write IO any more, and the failed volume is directly returned; when reading IO, the main volume directly processes and returns success.
When the thin pool where the slave volume is located is full, the remote copy relationship is stopped; the master volume stops for consistency with the slave volume; when write IO is sent to the main volume, the remote copy relationship is consistently disconnected, the main volume processes the write IO and returns success; when a read IO is sent to the main volume, the remote copy relationship is consistently disconnected, the main volume processes the read IO and returns success.
When the remote copy relationship is double-active, when the thin pool in which the master volume is located is full, the master volume is changed into a readonly, the master volume is switched from the slave volume, the slave volume is changed into the master volume, the switched slave volume is in a read-only state, and the switched master volume processes a read/write IO request; when the thin storage pool in which the slave volume is located is full, the slave volume becomes read-only, and the master volume processes the read/write IO request.
The method further comprises the step of displaying the read-only state of the compact volume, which specifically comprises the following steps: the status attribute value of the lsrcdisplacement command is modified, and the read-only attribute values "primary _ read _ only" and "secondary _ read _ only" of the thin volume are added. When the primary volume becomes read-only, this attribute shows "primary _ read _ only"; when the volume is changed to read-only, the attribute shows "second _ read _ only".
As shown in fig. 3, the data processing system in remote copy of the present invention includes a remote copy relationship establishing unit 1, a data processing unit 2, and a status display unit 3.
The remote copy relationship establishing unit 1 is configured to create two thin pools, respectively create a thin volume master volume and a thin volume slave volume in the thin pools, and establish a remote copy relationship between the master volume and the slave volume.
When the thin pool where any thin volume is located is full, the data processing unit 2 makes the thin volume in a read-only state.
The state display unit 3 is used to display the read-only state of the thin volume.
The invention also provides a data processing device in remote copy, which comprises two thin pools, a master volume, a slave volume and the data processing system.
The invention also provides a computer storage medium, wherein computer instructions are stored in the computer storage medium, and when the computer instructions are run on a data processing system, the data processing system executes the steps of the data processing method.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. A method of data processing in remote copy, the method comprising the steps of:
creating two thin pools, respectively creating a thin volume master volume and a thin volume slave volume in the thin pools, and establishing a remote copy relationship of the master volume and the slave volume;
when the thin pool where any thin volume is located is full, the thin volume is in a read-only state.
2. The data processing method in remote copy as claimed in claim 1, wherein when the thin pool where the primary volume is located is full, the remote copy relationship is not changed, the primary volume is in a read-only state, and when there is a read IO, the primary volume is directly processed.
3. The data processing method in remote copy as claimed in claim 1, wherein when the thin pool of the slave volume is full, the remote copy relationship is stopped;
when a write IO request exists, the main volume processes the write IO and returns success;
when there is a read IO request, the primary volume processes the write IO and returns success.
4. The data processing method in remote copy as claimed in claim 1, wherein the remote copy relationship is dual active, when the thin pool where the master volume is located is full, the master volume and the slave volume are switched, the switched slave volume is in a read-only state, and the switched master volume processes the read/write IO request; when the thin pool where the slave volume is located is full, the slave volume is in a read-only state, and the master volume processes the read/write IO request.
5. The data processing method in remote replication according to any of claims 1 to 4, wherein the method further comprises displaying the read-only state of the thin volume, in particular:
adding a read-only attribute value of the compact volume in the status attribute value;
And when the thin volume is changed into a read-only state, correspondingly displaying the read-only attribute value of the thin volume.
6. The method of data processing in remote copy of claim 5, wherein the remote copy comprises a synchronous remote copy relationship and an asynchronous remote copy relationship.
7. A data processing system in remote replication, the system comprising:
the remote copy relationship establishing unit is used for establishing two thin pools, respectively establishing a thin volume master volume and a thin volume slave volume in the thin pools, and establishing a remote copy relationship of the master volume and the slave volume;
and the data processing unit is used for enabling any thin volume to be in a read-only state when the thin pool where the thin volume is located is full.
8. The data processing system in remote replication of claim 7, wherein the system further comprises a state display unit for displaying a read-only state of the thin volume.
9. A data processing apparatus in remote replication, characterized in that said apparatus comprises two thin pools, a master volume, a slave volume and a data processing system according to claim 7 or 8.
10. A computer storage medium having computer instructions stored thereon, which, when executed on a data processing system, cause the data processing system to perform the steps of the data processing method of claim 6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010605298.4A CN111858162A (en) | 2020-06-29 | 2020-06-29 | Data processing method, system and device in remote copy |
| PCT/CN2021/076852 WO2022001127A1 (en) | 2020-06-29 | 2021-02-19 | Data processing method, system and device in remote replication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010605298.4A CN111858162A (en) | 2020-06-29 | 2020-06-29 | Data processing method, system and device in remote copy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111858162A true CN111858162A (en) | 2020-10-30 |
Family
ID=72989164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010605298.4A Withdrawn CN111858162A (en) | 2020-06-29 | 2020-06-29 | Data processing method, system and device in remote copy |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111858162A (en) |
| WO (1) | WO2022001127A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022001127A1 (en) * | 2020-06-29 | 2022-01-06 | 苏州浪潮智能科技有限公司 | Data processing method, system and device in remote replication |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8543786B2 (en) * | 2010-09-29 | 2013-09-24 | Hitachi, Ltd. | Computer system and computer system management method for adding an unused real volume to a pool |
| US9218407B1 (en) * | 2014-06-25 | 2015-12-22 | Pure Storage, Inc. | Replication and intermediate read-write state for mediums |
| CN107608623B (en) * | 2016-07-11 | 2021-08-31 | 中兴通讯股份有限公司 | Asynchronous remote copying method, device and system |
| CN110780816B (en) * | 2019-10-17 | 2023-01-10 | 苏州浪潮智能科技有限公司 | Data synchronization method, device and medium |
| CN110989930B (en) * | 2019-11-22 | 2023-07-18 | 浪潮(北京)电子信息产业有限公司 | Pool space data processing method, device, equipment and storage medium |
| CN111858162A (en) * | 2020-06-29 | 2020-10-30 | 苏州浪潮智能科技有限公司 | Data processing method, system and device in remote copy |
-
2020
- 2020-06-29 CN CN202010605298.4A patent/CN111858162A/en not_active Withdrawn
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2021
- 2021-02-19 WO PCT/CN2021/076852 patent/WO2022001127A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022001127A1 (en) * | 2020-06-29 | 2022-01-06 | 苏州浪潮智能科技有限公司 | Data processing method, system and device in remote replication |
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| WO2022001127A1 (en) | 2022-01-06 |
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